diff --git a/.config/autoconfig.php b/.config/autoconfig.php
index b759f4d..85e0221 100644
--- a/.config/autoconfig.php
+++ b/.config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/12.0/apache/config/autoconfig.php b/12.0/apache/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/12.0/apache/config/autoconfig.php
+++ b/12.0/apache/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/12.0/apache/entrypoint.sh b/12.0/apache/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/12.0/apache/entrypoint.sh
+++ b/12.0/apache/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/12.0/fpm-alpine/config/autoconfig.php b/12.0/fpm-alpine/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/12.0/fpm-alpine/config/autoconfig.php
+++ b/12.0/fpm-alpine/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/12.0/fpm-alpine/entrypoint.sh b/12.0/fpm-alpine/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/12.0/fpm-alpine/entrypoint.sh
+++ b/12.0/fpm-alpine/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/12.0/fpm/config/autoconfig.php b/12.0/fpm/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/12.0/fpm/config/autoconfig.php
+++ b/12.0/fpm/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/12.0/fpm/entrypoint.sh b/12.0/fpm/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/12.0/fpm/entrypoint.sh
+++ b/12.0/fpm/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/13.0/apache/config/autoconfig.php b/13.0/apache/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/13.0/apache/config/autoconfig.php
+++ b/13.0/apache/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/13.0/apache/entrypoint.sh b/13.0/apache/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/13.0/apache/entrypoint.sh
+++ b/13.0/apache/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/13.0/fpm-alpine/config/autoconfig.php b/13.0/fpm-alpine/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/13.0/fpm-alpine/config/autoconfig.php
+++ b/13.0/fpm-alpine/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/13.0/fpm-alpine/entrypoint.sh b/13.0/fpm-alpine/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/13.0/fpm-alpine/entrypoint.sh
+++ b/13.0/fpm-alpine/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/13.0/fpm/config/autoconfig.php b/13.0/fpm/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/13.0/fpm/config/autoconfig.php
+++ b/13.0/fpm/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/13.0/fpm/entrypoint.sh b/13.0/fpm/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/13.0/fpm/entrypoint.sh
+++ b/13.0/fpm/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/14.0/apache/config/autoconfig.php b/14.0/apache/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/14.0/apache/config/autoconfig.php
+++ b/14.0/apache/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/14.0/apache/entrypoint.sh b/14.0/apache/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/14.0/apache/entrypoint.sh
+++ b/14.0/apache/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/14.0/fpm-alpine/config/autoconfig.php b/14.0/fpm-alpine/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/14.0/fpm-alpine/config/autoconfig.php
+++ b/14.0/fpm-alpine/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/14.0/fpm-alpine/entrypoint.sh b/14.0/fpm-alpine/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/14.0/fpm-alpine/entrypoint.sh
+++ b/14.0/fpm-alpine/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/14.0/fpm/config/autoconfig.php b/14.0/fpm/config/autoconfig.php
index b759f4d..85e0221 100644
--- a/14.0/fpm/config/autoconfig.php
+++ b/14.0/fpm/config/autoconfig.php
@@ -26,9 +26,4 @@ if ($autoconfig_enabled) {
     $AUTOCONFIG["dbtableprefix"] = getenv('NEXTCLOUD_TABLE_PREFIX') ?: "";
 
     $AUTOCONFIG["directory"] = getenv('NEXTCLOUD_DATA_DIR') ?: "/var/www/html/data";
-
-    if (getenv('NEXTCLOUD_ADMIN_USER') && getenv('NEXTCLOUD_ADMIN_PASSWORD')) {
-        $AUTOCONFIG["adminlogin"] = getenv('NEXTCLOUD_ADMIN_USER');
-        $AUTOCONFIG["adminpass"] = getenv('NEXTCLOUD_ADMIN_PASSWORD');
-    }
 }
diff --git a/14.0/fpm/entrypoint.sh b/14.0/fpm/entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/14.0/fpm/entrypoint.sh
+++ b/14.0/fpm/entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi
 
diff --git a/docker-entrypoint.sh b/docker-entrypoint.sh
index 0afc002..f6c5d47 100755
--- a/docker-entrypoint.sh
+++ b/docker-entrypoint.sh
@@ -13,49 +13,96 @@ directory_empty() {
 
 run_as() {
     if [ "$(id -u)" = 0 ]; then
-        su - www-data -s /bin/sh -c "$1"
+        su -p www-data -s /bin/sh -c "$1"
     else
         sh -c "$1"
     fi
 }
 
-installed_version="0.0.0.0"
-if [ -f /var/www/html/version.php ]; then
+if expr "$1" : "apache" 1>/dev/null || [ "$1" = "php-fpm" ]; then
+    installed_version="0.0.0.0"
+    if [ -f /var/www/html/version.php ]; then
+        # shellcheck disable=SC2016
+        installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
+    fi
     # shellcheck disable=SC2016
-    installed_version="$(php -r 'require "/var/www/html/version.php"; echo implode(".", $OC_Version);')"
-fi
-# shellcheck disable=SC2016
-image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
+    image_version="$(php -r 'require "/usr/src/nextcloud/version.php"; echo implode(".", $OC_Version);')"
 
-if version_greater "$installed_version" "$image_version"; then
-    echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
-    exit 1
-fi
-
-if version_greater "$image_version" "$installed_version"; then
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
+    if version_greater "$installed_version" "$image_version"; then
+        echo "Can't start Nextcloud because the version of the data ($installed_version) is higher than the docker image version ($image_version) and downgrading is not supported. Are you sure you have pulled the newest image version?"
+        exit 1
     fi
-    if [ "$(id -u)" = 0 ]; then
-        rsync_options="-rlDog --chown www-data:root"
-    else
-        rsync_options="-rlD"
-    fi
-    rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    for dir in config data custom_apps themes; do
-        if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
-            rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+    if version_greater "$image_version" "$installed_version"; then
+        if [ "$installed_version" != "0.0.0.0" ]; then
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_before
         fi
-    done
+        if [ "$(id -u)" = 0 ]; then
+            rsync_options="-rlDog --chown www-data:root"
+        else
+            rsync_options="-rlD"
+        fi
+        rsync $rsync_options --delete --exclude /config/ --exclude /data/ --exclude /custom_apps/ --exclude /themes/ /usr/src/nextcloud/ /var/www/html/
 
-    if [ "$installed_version" != "0.0.0.0" ]; then
-        run_as 'php /var/www/html/occ upgrade'
+        for dir in config data custom_apps themes; do
+            if [ ! -d "/var/www/html/$dir" ] || directory_empty "/var/www/html/$dir"; then
+                rsync $rsync_options --include "/$dir/" --exclude '/*' /usr/src/nextcloud/ /var/www/html/
+            fi
+        done
 
-        run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
-        echo "The following apps have been disabled:"
-        diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
-        rm -f /tmp/list_before /tmp/list_after
+        #install
+        if [ "$installed_version" = "0.0.0.0" ]; then
+            echo "New nextcloud instance"
+
+            if [ -n "${NEXTCLOUD_ADMIN_USER+x}" ] && [ -n "${NEXTCLOUD_ADMIN_PASSWORD+x}" ]; then
+                # shellcheck disable=SC2016
+                install_options='-n --admin-user "$NEXTCLOUD_ADMIN_USER" --admin-pass "$NEXTCLOUD_ADMIN_PASSWORD"'
+                if [ -n "${NEXTCLOUD_TABLE_PREFIX+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-table-prefix "$NEXTCLOUD_TABLE_PREFIX"'
+                else
+                    install_options=$install_options' --database-table-prefix ""'
+                fi
+                if [ -n "${NEXTCLOUD_DATA_DIR+x}" ]; then
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --data-dir "$NEXTCLOUD_DATA_DIR"'
+                fi
+
+                if [  -n "${SQLITE_DATABASE+x}" ]; then
+                    echo "Installing with SQLite database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database-name "$SQLITE_DATABASE"'
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${MYSQL_DATABASE+x}" ] && [ -n "${MYSQL_USER+x}" ] && [ -n "${MYSQL_PASSWORD+x}" ] && [ -n "${MYSQL_HOST+x}" ]; then
+                    echo "Installing with MySQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database mysql --database-name "$MYSQL_DATABASE" --database-user "$MYSQL_USER" --database-pass "$MYSQL_PASSWORD" --database-host "$MYSQL_HOST"'
+                    echo "waiting 30s for the database to setup"
+                    sleep 30s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                elif [ -n "${POSTGRES_DB+x}" ] && [ -n "${POSTGRES_USER+x}" ] && [ -n "${POSTGRES_PASSWORD+x}" ] && [ -n "${POSTGRES_HOST+x}" ]; then
+                    echo "Installing with PostgreSQL database"
+                    # shellcheck disable=SC2016
+                    install_options=$install_options' --database pgsql --database-name "$POSTGRES_DB" --database-user "$POSTGRES_USER" --database-pass "$POSTGRES_PASSWORD" --database-host "$POSTGRES_HOST"'
+                    echo "waiting 10s for the database to setup"
+                    sleep 10s
+                    echo "starting nexcloud installation"
+                    run_as "php /var/www/html/occ maintenance:install $install_options"
+                else
+                    echo "running web-based installer on first connect!"
+                fi
+            fi
+        #upgrade
+        else
+            run_as 'php /var/www/html/occ upgrade'
+
+            run_as 'php /var/www/html/occ app:list' | sed -n "/Enabled:/,/Disabled:/p" > /tmp/list_after
+            echo "The following apps have been disabled:"
+            diff /tmp/list_before /tmp/list_after | grep '<' | cut -d- -f2 | cut -d: -f1
+            rm -f /tmp/list_before /tmp/list_after
+
+        fi
     fi
 fi