deps: go mod tidy

Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>

.github/workflows/ci.yaml

@@ -43,7 +43,7 @@ jobs:
           ${{ runner.os }}-tests-
 
     - name: Run tests
-      run: make tests
+      run: git --no-pager diff --exit-code HEAD~1 HEAD **/**.go templates/ || make tests
 
   docs-up-to-date:
     name: Docs up to date

.github/workflows/docs.yaml

@@ -1,9 +1,7 @@
 name: Docs
 on:
   push:
-    branches:
-    - docs
-    - main
+    tags: [ "v*" ]
 jobs:
   deploy:
     runs-on: ubuntu-latest

.gitignore

@@ -13,3 +13,5 @@ images
 .goreleaser.yaml
 docs/build
 docs-src
+/completions
+/cmd/d2vm/run/sparsecat-linux-amd64

.goreleaser.yaml

@@ -15,6 +15,8 @@ project_name: d2vm
 before:
   hooks:
   - go mod tidy
+  - go generate ./...
+  - make completions
 builds:
 - main: ./cmd/d2vm
   env:
@@ -37,6 +39,35 @@ snapshot:
   name_template: "{{ .Env.VERSION }}"
 release:
   prerelease: auto
+  extra_files:
+  - glob: LICENCE
+  - glob: pgp.pub
+archives:
+- name_template: '{{ .ProjectName }}_{{ .Env.VERSION }}_{{ .Os }}_{{ .Arch }}{{ with .Arm }}v{{ . }}{{ end }}{{ with .Mips }}_{{ . }}{{ end }}{{ if not (eq .Amd64 "v1") }}{{ .Amd64 }}{{ end }}'
+  files:
+  - LICENCE
+  - README.md
+  - completions/*
+brews:
+- name: d2vm
+  tap:
+    owner: linka-cloud
+    name: homebrew-tap
+  folder: Formula
+  homepage: https://github.com/linka-cloud/d2vm
+  description: Build Virtual Machine Image from Dockerfile or Docker image
+  license: Apache License 2.0
+  test: |
+    system "#{bin}/d2vm --version"
+  dependencies:
+  - name: go
+    type: optional
+  - name: git
+  install: |-
+    bin.install "d2vm"
+    bash_completion.install "completions/d2vm.bash" => "d2vm"
+    zsh_completion.install "completions/d2vm.zsh" => "_d2vm"
+    fish_completion.install "completions/d2vm.fish"
 changelog:
   sort: asc
   filters:

Dockerfile

@@ -33,6 +33,7 @@ RUN apt-get update && \
         util-linux \
         udev \
         parted \
+        kpartx \
         e2fsprogs \
         mount \
         tar \

Makefile

@@ -68,7 +68,7 @@ tests:
 
 docs-up-to-date:
 	@$(MAKE) cli-docs
-	@git diff --quiet -- docs ':(exclude)docs/content/reference/d2vm_run_qemu.md' || (git --no-pager diff -- docs ':(exclude)docs/content/reference/d2vm_run_qemu.md'; echo "Please regenerate the documentation with 'make docs'"; exit 1)
+	@git diff --quiet -- docs ':(exclude)docs/content/reference/d2vm_run_qemu.md' || (git --no-pager diff -- docs ':(exclude)docs/content/reference/d2vm_run_qemu.md'; echo "Please regenerate the documentation with 'make cli-docs'"; exit 1)
 
 check-fmt:
 	@[ "$(gofmt -l $(find . -name '*.go') 2>&1)" = "" ]
@@ -78,6 +78,10 @@ vet:
 
 build-dev: docker-build .build
 
+install: docker-build
+	@go generate ./...
+	@go install -ldflags "-s -w -X '$(MODULE).Version=$(VERSION)' -X '$(MODULE).BuildDate=$(shell date)'" ./cmd/d2vm
+
 .build:
 	@go generate ./...
 	@go build -o d2vm -ldflags "-s -w -X '$(MODULE).Version=$(VERSION)' -X '$(MODULE).BuildDate=$(shell date)'" ./cmd/d2vm
@@ -98,15 +102,23 @@ build: bin
 release: bin
 	@VERSION=$(VERSION) IMAGE=$(DOCKER_IMAGE) goreleaser release --rm-dist --parallelism 8
 
+.PHONY: completions
+completions: .build
+	@rm -rf completions
+	@mkdir -p completions
+	@for shell in bash zsh fish powershell; do \
+		./d2vm completion $$shell > completions/d2vm.$$shell; \
+	done
+
 .PHONY: examples
 examples: build-dev
 	@mkdir -p examples/build
 	@for f in $$(find examples -type f -name '*Dockerfile' -maxdepth 1); do \
   		echo "Building $$f"; \
-  		./d2vm build -o examples/build/$$(basename $$f|cut -d'.' -f1).qcow2 -f $$f examples; \
+  		./d2vm build -o examples/build/$$(basename $$f|cut -d'.' -f1).qcow2 -p root -f $$f examples --force; \
 	  done
 	@echo "Building examples/full/Dockerfile"
-	@./d2vm build -o examples/build/full.qcow2 --build-arg=USER=adphi --build-arg=PASSWORD=adphi examples/full
+	@./d2vm build -o examples/build/full.qcow2 --build-arg=USER=adphi --build-arg=PASSWORD=adphi examples/full --force
 
 cli-docs: .build
 	@rm -rf $(CLI_REFERENCE_PATH)

README.md

@@ -19,7 +19,10 @@ Many thanks to him.
 
 **Only building Linux Virtual Machine images is supported.**
 
-**Starting from v0.1.0, d2vm automatically run build and convert commands inside Docker when not running on linux**.
+Starting from v0.1.0, **d2vm** automatically run build and convert commands inside Docker when not running on linux
+or when running without *root* privileges.
+
+*Note: windows should be working, but is totally untested.*
 
 ## Supported VM Linux distributions:
 
@@ -37,15 +40,69 @@ Unsupported:
 The program uses the `/etc/os-release` file to discover the Linux distribution and install the Kernel,
 if the file is missing, the build cannot succeed.
 
-Obviously, **Distroless** images are not supported. 
+Obviously, **Distroless** images are not supported.
+
+## Prerequisites
+
+### osx
+- [Docker](https://docs.docker.com/get-docker/)
+- [QEMU](https://www.qemu.org/download/#macos) (optional)
+- [VirtualBox](https://www.virtualbox.org/wiki/Downloads) (optional)
+
+### Linux
+- [Docker](https://docs.docker.com/get-docker/)
+- util-linux
+- udev
+- parted
+- e2fsprogs
+- mount
+- tar
+- extlinux
+- qemu-utils
+- [QEMU](https://www.qemu.org/download/#linux) (optional)
+- [VirtualBox](https://www.virtualbox.org/wiki/Linux_Downloads) (optional)
 
 ## Getting started
 
-### Install from release
+### Install
 
-Download the latest release for your platform from the [release page](https://github.com/linka-cloud/d2vm/releases/latest)
+#### With Docker
 
-### Install from source
+*Note: this will only work if both the source context (and Dockerfile) and the output directory are somewhere inside
+the directory where you run the command.*
+
+```bash
+docker pull linkacloud/d2vm:latest
+alias d2vm="docker run --rm -it -v /var/run/docker.sock:/var/run/docker.sock --privileged -v \$PWD:/d2vm -w /d2vm linkacloud/d2vm:latest"
+```
+
+```bash
+wich d2vm
+
+d2vm: aliased to docker run --rm -it -v /var/run/docker.sock:/var/run/docker.sock --privileged -v $PWD:/d2vm -w /d2vm linkacloud/d2vm:latest
+```
+
+#### With Homebrew
+
+```bash
+brew install linka-cloud/tap/d2vm
+```
+
+#### From release
+
+Download the latest release for your platform from the [release page](https://github.com/linka-cloud/d2vm/releases/latest).
+
+Extract the tarball, then move the extracted *d2vm* binary to somewhere in your `$PATH` (`/usr/local/bin` for most users).
+
+```bash
+VERSION=$(git ls-remote --tags https://github.com/linka-cloud/d2vm |cut -d'/' -f 3|tail -n 1)
+OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+ARCH=$([ "$(uname -m)" = "x86_64" ] && echo "amd64" || echo "arm64")
+curl -sL "https://github.com/linka-cloud/d2vm/releases/download/${VERSION}/d2vm_${VERSION}_${OS}_${ARCH}.tar.gz" | tar -xvz d2vm
+sudo mv d2vm /usr/local/bin/
+```
+
+#### From source
 
 Clone the git repository:
 
@@ -56,9 +113,34 @@ git clone https://github.com/linka-cloud/d2vm && cd d2vm
 Install using the *make*, *docker* and the Go tool chain:
 
 ```bash
-make build-dev && sudo cp d2vm /usr/local/bin/
+make install
 ```
 
+The *d2vm* binary is installed in the `$GOBIN` directory.
+
+```bash
+which d2vm
+
+/go/bin/d2vm
+```
+
+### Generate shell completion
+
+The *d2vm* program supports shell completion for *bash*, *zsh* and *fish*.
+
+It can be enabled by running the following command:
+
+```bash
+source <(d2vm completion $(basename $SHELL))
+```
+
+Or you can install the completion file in the shell completion directory by following the instructions:
+
+```bash
+d2vm completion $(basename $SHELL) --help
+```
+
+
 ### Converting an existing Docker Image to VM image:
 
 ```bash
@@ -72,20 +154,21 @@ Usage:
 
 Flags:
       --append-to-cmdline string   Extra kernel cmdline arguments to append to the generated one
-  -f, --force                      Override output qcow2 image
+      --force                      Override output qcow2 image
   -h, --help                       help for convert
       --network-manager string     Network manager to use for the image: none, netplan, ifupdown
   -o, --output string              The output image, the extension determine the image format, raw will be used if none. Supported formats: qcow2 qed raw vdi vhd vmdk (default "disk0.qcow2")
-  -p, --password string            The Root user password (default "root")
+  -p, --password string            Optional root user password
       --pull                       Always pull docker image
+      --push                       Push the container disk image to the registry
       --raw                        Just convert the container to virtual machine image without installing anything more
   -s, --size string                The output image size (default "10G")
+  -t, --tag string                 Container disk Docker image tag
 
 Global Flags:
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 
-
 ```
 
 Create an image based on the **ubuntu** official image:
@@ -206,8 +289,6 @@ RUN apt update && apt install -y openssh-server && \
 
 ```
 
-When building the vm image, *d2vm* will create a root password, so there is no need to configure it now.
-
 Build the vm image:
 
 The *build* command take most of its flags and arguments from the *docker build* command.
@@ -226,16 +307,18 @@ Flags:
       --append-to-cmdline string   Extra kernel cmdline arguments to append to the generated one
       --build-arg stringArray      Set build-time variables
   -f, --file string                Name of the Dockerfile
-      --force                      Override output image
+      --force                      Override output qcow2 image
   -h, --help                       help for build
       --network-manager string     Network manager to use for the image: none, netplan, ifupdown
   -o, --output string              The output image, the extension determine the image format, raw will be used if none. Supported formats: qcow2 qed raw vdi vhd vmdk (default "disk0.qcow2")
-  -p, --password string            Root user password (default "root")
+  -p, --password string            Optional root user password
+      --push                       Push the container disk image to the registry
       --raw                        Just convert the container to virtual machine image without installing anything more
   -s, --size string                The output image size (default "10G")
+  -t, --tag string                 Container disk Docker image tag
 
 Global Flags:
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 
 ```
@@ -250,6 +333,13 @@ Or if you want to create a VirtualBox image:
 sudo d2vm build -p MyP4Ssw0rd -f ubuntu.Dockerfile -o ubuntu.vdi .
 ```
 
+### KubeVirt Container Disk Images
+
+Using the `--tag` flag with the `build` and `convert` commands, you can create a 
+[Container Disk Image](https://kubevirt.io/user-guide/virtual_machines/disks_and_volumes/#containerdisk) for [KubeVirt](https://kubevirt.io/).
+
+The `--push` flag will push the image to the registry.
+
 ### Complete example
 
 A complete example setting up a ZSH workstation is available in the [examples/full](examples/full/README.md) directory.

builder.go

@@ -96,6 +96,8 @@ func sysconfig(osRelease OSRelease) (string, error) {
 		return syslinuxCfgUbuntu, nil
 	case ReleaseDebian:
 		return syslinuxCfgDebian, nil
+	case ReleaseKali:
+		return syslinuxCfgDebian, nil
 	case ReleaseAlpine:
 		return syslinuxCfgAlpine, nil
 	case ReleaseCentOS:
@@ -105,6 +107,11 @@ func sysconfig(osRelease OSRelease) (string, error) {
 	}
 }
 
+type Builder interface {
+	Build(ctx context.Context) (err error)
+	Close() error
+}
+
 type builder struct {
 	osRelease OSRelease
 
@@ -125,7 +132,7 @@ type builder struct {
 	cmdLineExtra string
 }
 
-func NewBuilder(ctx context.Context, workdir, imgTag, disk string, size int64, osRelease OSRelease, format string, cmdLineExtra string) (*builder, error) {
+func NewBuilder(ctx context.Context, workdir, imgTag, disk string, size int64, osRelease OSRelease, format string, cmdLineExtra string) (Builder, error) {
 	if err := checkDependencies(); err != nil {
 		return nil, err
 	}
@@ -258,10 +265,10 @@ func (b *builder) mountImg(ctx context.Context) error {
 		return err
 	}
 	b.loDevice = strings.TrimSuffix(o, "\n")
-	if err := exec.Run(ctx, "partprobe", b.loDevice); err != nil {
+	if err := exec.Run(ctx, "kpartx", "-a", b.loDevice); err != nil {
 		return err
 	}
-	b.loPart = fmt.Sprintf("%sp1", b.loDevice)
+	b.loPart = fmt.Sprintf("/dev/mapper/%sp1", filepath.Base(b.loDevice))
 	logrus.Infof("creating raw image file system")
 	if err := exec.Run(ctx, "mkfs.ext4", b.loPart); err != nil {
 		return err
@@ -278,6 +285,9 @@ func (b *builder) unmountImg(ctx context.Context) error {
 	if err := exec.Run(ctx, "umount", b.mntPoint); err != nil {
 		merr = multierr.Append(merr, err)
 	}
+	if err := exec.Run(ctx, "kpartx", "-d", b.loDevice); err != nil {
+		merr = multierr.Append(merr, err)
+	}
 	if err := exec.Run(ctx, "losetup", "-d", b.loDevice); err != nil {
 		merr = multierr.Append(merr, err)
 	}

builder_test.go

@@ -115,6 +115,18 @@ func TestSyslinuxCfg(t *testing.T) {
 			initrd:    "/initrd.img",
 			sysconfig: syslinuxCfgDebian,
 		},
+		{
+			image:     "kalilinux/kali-rolling:latest",
+			kernel:    "/vmlinuz",
+			initrd:    "/initrd.img",
+			sysconfig: syslinuxCfgDebian,
+		},
+		{
+			image:     "alpine:3.16",
+			kernel:    "/boot/vmlinuz-virt",
+			initrd:    "/boot/initramfs-virt",
+			sysconfig: syslinuxCfgAlpine,
+		},
 		{
 			image:     "alpine",
 			kernel:    "/boot/vmlinuz-virt",

cmd/d2vm/build.go

@@ -30,17 +30,16 @@ import (
 )
 
 var (
-	file           = "Dockerfile"
-	tag            = "d2vm-" + uuid.New().String()
-	networkManager string
-	buildArgs      []string
-	buildCmd       = &cobra.Command{
+	file      = "Dockerfile"
+	tag       = "d2vm-" + uuid.New().String()
+	buildArgs []string
+	buildCmd  = &cobra.Command{
 		Use:   "build [context directory]",
 		Short: "Build a vm image from Dockerfile",
 		Args:  cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			// TODO(adphi): resolve context path
-			if runtime.GOOS != "linux" {
+			if runtime.GOOS != "linux" || !isRoot() {
 				ctxAbsPath, err := filepath.Abs(args[0])
 				if err != nil {
 					return err
@@ -87,6 +86,9 @@ var (
 			if file == "" {
 				file = filepath.Join(args[0], "Dockerfile")
 			}
+			if push && tag == "" {
+				return fmt.Errorf("tag is required when pushing container disk image")
+			}
 			if _, err := os.Stat(output); err == nil || !os.IsNotExist(err) {
 				if !force {
 					return fmt.Errorf("%s already exists", output)
@@ -96,7 +98,7 @@ var (
 			if err := docker.Build(cmd.Context(), tag, file, args[0], buildArgs...); err != nil {
 				return err
 			}
-			return d2vm.Convert(
+			if err := d2vm.Convert(
 				cmd.Context(),
 				tag,
 				d2vm.WithSize(size),
@@ -105,7 +107,15 @@ var (
 				d2vm.WithCmdLineExtra(cmdLineExtra),
 				d2vm.WithNetworkManager(d2vm.NetworkManager(networkManager)),
 				d2vm.WithRaw(raw),
-			)
+			); err != nil {
+				return err
+			}
+			if uid, ok := sudoUser(); ok {
+				if err := os.Chown(output, uid, uid); err != nil {
+					return err
+				}
+			}
+			return maybeMakeContainerDisk(cmd.Context())
 		},
 	}
 )
@@ -116,11 +126,5 @@ func init() {
 	buildCmd.Flags().StringVarP(&file, "file", "f", "", "Name of the Dockerfile")
 	buildCmd.Flags().StringArrayVar(&buildArgs, "build-arg", nil, "Set build-time variables")
 
-	buildCmd.Flags().StringVarP(&output, "output", "o", output, "The output image, the extension determine the image format, raw will be used if none. Supported formats: "+strings.Join(d2vm.OutputFormats(), " "))
-	buildCmd.Flags().StringVarP(&password, "password", "p", "root", "Root user password")
-	buildCmd.Flags().StringVarP(&size, "size", "s", "10G", "The output image size")
-	buildCmd.Flags().BoolVar(&force, "force", false, "Override output image")
-	buildCmd.Flags().StringVar(&cmdLineExtra, "append-to-cmdline", "", "Extra kernel cmdline arguments to append to the generated one")
-	buildCmd.Flags().StringVar(&networkManager, "network-manager", "", "Network manager to use for the image: none, netplan, ifupdown")
-	buildCmd.Flags().BoolVar(&raw, "raw", false, "Just convert the container to virtual machine image without installing anything more")
+	buildCmd.Flags().AddFlagSet(buildFlags())
 }

cmd/d2vm/container_disk.go

@@ -0,0 +1,43 @@
+// Copyright 2022 Linka Cloud  All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/sirupsen/logrus"
+
+	"go.linka.cloud/d2vm"
+	"go.linka.cloud/d2vm/pkg/docker"
+)
+
+func maybeMakeContainerDisk(ctx context.Context) error {
+	if containerDiskTag == "" {
+		return nil
+	}
+	logrus.Infof("creating container disk image %s", containerDiskTag)
+	if err := d2vm.MakeContainerDisk(ctx, output, containerDiskTag); err != nil {
+		return err
+	}
+	if !push {
+		return nil
+	}
+	logrus.Infof("pushing container disk image %s", containerDiskTag)
+	if err := docker.Push(ctx, containerDiskTag); err != nil {
+		return fmt.Errorf("failed to push container disk: %w", err)
+	}
+	return nil
+}

cmd/d2vm/convert.go

@@ -30,17 +30,13 @@ import (
 )
 
 var (
-	raw          bool
-	pull         = false
-	cmdLineExtra = ""
-
 	convertCmd = &cobra.Command{
 		Use:          "convert [docker image]",
 		Short:        "Convert Docker image to vm image",
 		Args:         cobra.ExactArgs(1),
 		SilenceUsage: true,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if runtime.GOOS != "linux" {
+			if runtime.GOOS != "linux" || !isRoot() {
 				abs, err := filepath.Abs(output)
 				if err != nil {
 					return err
@@ -60,10 +56,14 @@ var (
 			if parts := strings.Split(img, ":"); len(parts) > 1 {
 				img, tag = parts[0], parts[1]
 			}
+			img = fmt.Sprintf("%s:%s", img, tag)
 			size, err := parseSize(size)
 			if err != nil {
 				return err
 			}
+			if push && tag == "" {
+				return fmt.Errorf("tag is required when pushing container disk image")
+			}
 			if _, err := os.Stat(output); err == nil || !os.IsNotExist(err) {
 				if !force {
 					return fmt.Errorf("%s already exists", output)
@@ -75,9 +75,9 @@ var (
 				if err != nil {
 					return err
 				}
-				found = len(imgs) == 1 && imgs[0] == fmt.Sprintf("%s:%s", img, tag)
+				found = len(imgs) == 1 && imgs[0] == img
 				if found {
-					logrus.Infof("using local image %s:%s", img, tag)
+					logrus.Infof("using local image %s", img)
 				}
 			}
 			if pull || !found {
@@ -86,7 +86,7 @@ var (
 					return err
 				}
 			}
-			return d2vm.Convert(
+			if err := d2vm.Convert(
 				cmd.Context(),
 				img,
 				d2vm.WithSize(size),
@@ -95,7 +95,16 @@ var (
 				d2vm.WithCmdLineExtra(cmdLineExtra),
 				d2vm.WithNetworkManager(d2vm.NetworkManager(networkManager)),
 				d2vm.WithRaw(raw),
-			)
+			); err != nil {
+				return err
+			}
+			// set user permissions on the output file if the command was run with sudo
+			if uid, ok := sudoUser(); ok {
+				if err := os.Chown(output, uid, uid); err != nil {
+					return err
+				}
+			}
+			return maybeMakeContainerDisk(cmd.Context())
 		},
 	}
 )
@@ -110,12 +119,6 @@ func parseSize(s string) (int64, error) {
 
 func init() {
 	convertCmd.Flags().BoolVar(&pull, "pull", false, "Always pull docker image")
-	convertCmd.Flags().StringVarP(&output, "output", "o", output, "The output image, the extension determine the image format, raw will be used if none. Supported formats: "+strings.Join(d2vm.OutputFormats(), " "))
-	convertCmd.Flags().StringVarP(&password, "password", "p", "root", "The Root user password")
-	convertCmd.Flags().StringVarP(&size, "size", "s", "10G", "The output image size")
-	convertCmd.Flags().BoolVarP(&force, "force", "f", false, "Override output qcow2 image")
-	convertCmd.Flags().StringVar(&cmdLineExtra, "append-to-cmdline", "", "Extra kernel cmdline arguments to append to the generated one")
-	convertCmd.Flags().StringVar(&networkManager, "network-manager", "", "Network manager to use for the image: none, netplan, ifupdown")
-	convertCmd.Flags().BoolVar(&raw, "raw", false, "Just convert the container to virtual machine image without installing anything more")
+	convertCmd.Flags().AddFlagSet(buildFlags())
 	rootCmd.AddCommand(convertCmd)
 }

cmd/d2vm/flags.go

@@ -0,0 +1,50 @@
+// Copyright 2022 Linka Cloud  All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package main
+
+import (
+	"strings"
+
+	"github.com/spf13/pflag"
+
+	"go.linka.cloud/d2vm"
+)
+
+var (
+	output           = "disk0.qcow2"
+	size             = "1G"
+	password         = ""
+	force            = false
+	raw              bool
+	pull             = false
+	cmdLineExtra     = ""
+	containerDiskTag = ""
+	push             bool
+	networkManager   string
+)
+
+func buildFlags() *pflag.FlagSet {
+	flags := pflag.NewFlagSet("build", pflag.ExitOnError)
+	flags.StringVarP(&output, "output", "o", output, "The output image, the extension determine the image format, raw will be used if none. Supported formats: "+strings.Join(d2vm.OutputFormats(), " "))
+	flags.StringVarP(&password, "password", "p", "", "Optional root user password")
+	flags.StringVarP(&size, "size", "s", "10G", "The output image size")
+	flags.BoolVar(&force, "force", false, "Override output qcow2 image")
+	flags.StringVar(&cmdLineExtra, "append-to-cmdline", "", "Extra kernel cmdline arguments to append to the generated one")
+	flags.StringVar(&networkManager, "network-manager", "", "Network manager to use for the image: none, netplan, ifupdown")
+	flags.BoolVar(&raw, "raw", false, "Just convert the container to virtual machine image without installing anything more")
+	flags.StringVarP(&containerDiskTag, "tag", "t", "", "Container disk Docker image tag")
+	flags.BoolVar(&push, "push", false, "Push the container disk image to the registry")
+	return flags
+}

cmd/d2vm/main.go

@@ -20,6 +20,8 @@ import (
 	"fmt"
 	"os"
 	"os/signal"
+	"runtime"
+	"strconv"
 	"strings"
 	"time"
 
@@ -32,10 +34,6 @@ import (
 )
 
 var (
-	output     = "disk0.qcow2"
-	size       = "1G"
-	password   = "root"
-	force      = false
 	verbose    = false
 	timeFormat = ""
 	format     = "qcow2"
@@ -56,6 +54,12 @@ var (
 				logrus.SetLevel(logrus.TraceLevel)
 			}
 			exec.SetDebug(verbose)
+
+			// make the zsh completion work when sourced with `source <(d2vm completion zsh)`
+			if cmd.Name() == "zsh" && cmd.Parent() != nil && cmd.Parent().Name() == "completion" {
+				zshHead := fmt.Sprintf("#compdef %[1]s\ncompdef _%[1]s %[1]s\n", cmd.Root().Name())
+				cmd.OutOrStdout().Write([]byte(zshHead))
+			}
 		},
 	}
 )
@@ -78,7 +82,7 @@ func init() {
 	rootCmd.PersistentFlags().BoolVarP(&verbose, "debug", "d", false, "Enable Debug output")
 	rootCmd.PersistentFlags().MarkDeprecated("debug", "use -v instead")
 	rootCmd.PersistentFlags().BoolVarP(&verbose, "verbose", "v", false, "Enable Verbose output")
-	rootCmd.PersistentFlags().StringVarP(&timeFormat, "time", "t", "none", "Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)'")
+	rootCmd.PersistentFlags().StringVar(&timeFormat, "time", "none", "Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)'")
 	color.NoColor = false
 	logrus.StandardLogger().Formatter = &logfmtFormatter{start: time.Now()}
 }
@@ -127,3 +131,25 @@ func (f *logfmtFormatter) Format(entry *logrus.Entry) ([]byte, error) {
 	}
 	return b.Bytes(), nil
 }
+
+func isRoot() bool {
+	return os.Geteuid() == 0
+}
+
+func sudoUser() (uid int, sudo bool) {
+	// if we are not running on linux, docker handle files user's permissions,
+	// so we don't need to check for sudo here
+	if runtime.GOOS != "linux" {
+		return
+	}
+	v := os.Getenv("SUDO_UID")
+	if v == "" {
+		return 0, false
+	}
+	uid, err := strconv.Atoi(v)
+	if err != nil {
+		logrus.Errorf("invalid SUDO_UID: %s", v)
+		return 0, false
+	}
+	return uid, true
+}

cmd/d2vm/run/hetzner.go

@@ -34,7 +34,7 @@ import (
 	"github.com/spf13/cobra"
 	"github.com/svenwiltink/sparsecat"
 
-	exec2 "go.linka.cloud/d2vm/pkg/exec"
+	"go.linka.cloud/d2vm/pkg/qemu_img"
 )
 
 const (
@@ -79,7 +79,7 @@ func Hetzner(cmd *cobra.Command, args []string) {
 }
 
 func runHetzner(ctx context.Context, imgPath string, stdin io.Reader, stderr io.Writer, stdout io.Writer) error {
-	i, err := ImgInfo(ctx, imgPath)
+	i, err := qemu_img.Info(ctx, imgPath)
 	if err != nil {
 		return err
 	}
@@ -91,11 +91,11 @@ func runHetzner(ctx context.Context, imgPath string, stdin io.Reader, stderr io.
 		}
 		defer os.RemoveAll(rawPath)
 		logrus.Infof("converting image to raw: %s", rawPath)
-		if err := exec2.Run(ctx, "qemu-img", "convert", "-O", "raw", imgPath, rawPath); err != nil {
+		if err := qemu_img.Convert(ctx, "raw", imgPath, rawPath); err != nil {
 			return err
 		}
 		imgPath = rawPath
-		i, err = ImgInfo(ctx, imgPath)
+		i, err = qemu_img.Info(ctx, imgPath)
 		if err != nil {
 			return err
 		}

cmd/d2vm/run/qemu.go

@@ -71,7 +71,7 @@ func init() {
 
 	// Paths and settings for disks
 	flags.Var(&disks, "disk", "Disk config, may be repeated. [file=]path[,size=1G][,format=qcow2]")
-	flags.StringVar(&data, "data", "", "String of metadata to pass to VM; error to specify both -data and -data-file")
+	flags.StringVar(&data, "data", "", "String of metadata to pass to VM")
 
 	// VM configuration
 	flags.StringVar(&accel, "accel", defaultAccel, "Choose acceleration mode. Use 'tcg' to disable it.")
@@ -91,7 +91,7 @@ func init() {
 	// USB devices
 	flags.BoolVar(&usbEnabled, "usb", false, "Enable USB controller")
 
-	flags.Var(&deviceFlags, "device", "Add USB host device(s). Format driver[,prop=value][,...] -- add device, like -device on the qemu command line.")
+	flags.Var(&deviceFlags, "device", "Add USB host device(s). Format driver[,prop=value][,...] -- add device, like --device on the qemu command line.")
 
 }
 

cmd/d2vm/run/util.go

@@ -18,13 +18,10 @@ package run
 
 import (
 	"bufio"
-	"context"
 	_ "embed"
-	"encoding/json"
 	"fmt"
 	"io"
 	"os"
-	"os/exec"
 	"strconv"
 	"strings"
 	"sync"
@@ -340,23 +337,3 @@ func (p *pw) Progress() int {
 	defer p.mu.RUnlock()
 	return p.total
 }
-
-type QemuInfo struct {
-	VirtualSize int    `json:"virtual-size"`
-	Filename    string `json:"filename"`
-	Format      string `json:"format"`
-	ActualSize  int    `json:"actual-size"`
-	DirtyFlag   bool   `json:"dirty-flag"`
-}
-
-func ImgInfo(ctx context.Context, path string) (*QemuInfo, error) {
-	o, err := exec.CommandContext(ctx, "qemu-img", "info", path, "--output", "json").CombinedOutput()
-	if err != nil {
-		return nil, fmt.Errorf("%v: %s", err, string(o))
-	}
-	var i QemuInfo
-	if err := json.Unmarshal(o, &i); err != nil {
-		return nil, err
-	}
-	return &i, nil
-}

cmd/d2vm/run/vbox.go

@@ -19,7 +19,7 @@ import (
 	"github.com/spf13/cobra"
 	"go.linka.cloud/console"
 
-	exec2 "go.linka.cloud/d2vm/pkg/exec"
+	"go.linka.cloud/d2vm/pkg/qemu_img"
 )
 
 var (
@@ -74,7 +74,7 @@ func vbox(ctx context.Context, path string) error {
 	if err != nil {
 		return fmt.Errorf("Cannot find management binary %s: %v", vboxmanageFlag, err)
 	}
-	i, err := ImgInfo(ctx, path)
+	i, err := qemu_img.Info(ctx, path)
 	if err != nil {
 		return fmt.Errorf("failed to get image info: %v", err)
 	}
@@ -86,14 +86,14 @@ func vbox(ctx context.Context, path string) error {
 		}
 		defer os.RemoveAll(vdi)
 		logrus.Infof("converting image to raw: %s", vdi)
-		if err := exec2.Run(ctx, "qemu-img", "convert", "-O", "vdi", path, vdi); err != nil {
+		if err := qemu_img.Convert(ctx, "vdi", path, vdi); err != nil {
 			return err
 		}
 		path = vdi
 	}
 
 	// remove machine in case it already exists
-	cleanup(vboxmanage, name)
+	cleanup(vboxmanage, name, false)
 
 	_, out, err := manage(vboxmanage, "createvm", "--name", name, "--register")
 	if err != nil {
@@ -273,22 +273,26 @@ func vbox(ctx context.Context, path string) error {
 	return <-errs
 }
 
-func cleanup(vboxmanage string, name string) {
-	if _, _, err := manage(vboxmanage, "controlvm", name, "poweroff"); err != nil {
+func cleanup(vboxmanage string, name string, logErrs ...bool) {
+	logErr := true
+	if len(logErrs) > 0 {
+		logErr = logErrs[0]
+	}
+	if _, _, err := manage(vboxmanage, "controlvm", name, "poweroff"); err != nil && logErr {
 		log.Errorf("controlvm poweroff error: %v", err)
 	}
 	_, out, err := manage(vboxmanage, "storageattach", name, "--storagectl", "IDE Controller", "--port", "1", "--device", "0", "--type", "hdd", "--medium", "emptydrive")
-	if err != nil {
+	if err != nil && logErr {
 		log.Errorf("storageattach error: %v\n%s", err, out)
 	}
 	for i := range disks {
 		id := strconv.Itoa(i)
 		_, out, err := manage(vboxmanage, "storageattach", name, "--storagectl", "SATA", "--port", "0", "--device", id, "--type", "hdd", "--medium", "emptydrive")
-		if err != nil {
+		if err != nil && logErr {
 			log.Errorf("storageattach error: %v\n%s", err, out)
 		}
 	}
-	if _, out, err = manage(vboxmanage, "unregistervm", name, "--delete"); err != nil {
+	if _, out, err = manage(vboxmanage, "unregistervm", name, "--delete"); err != nil && logErr {
 		log.Errorf("unregistervm error: %v\n%s", err, out)
 	}
 }

container_disk.go

@@ -0,0 +1,67 @@
+// Copyright 2022 Linka Cloud  All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package d2vm
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/google/uuid"
+	"github.com/sirupsen/logrus"
+
+	"go.linka.cloud/d2vm/pkg/docker"
+	"go.linka.cloud/d2vm/pkg/qemu_img"
+)
+
+const (
+	// https://kubevirt.io/user-guide/virtual_machines/disks_and_volumes/#containerdisk-workflow-example
+	uid                     = 107
+	containerDiskDockerfile = `FROM scratch
+
+ADD --chown=%[1]d:%[1]d %[2]s /disk/
+`
+)
+
+func MakeContainerDisk(ctx context.Context, path string, tag string) error {
+	tmpPath := filepath.Join(os.TempDir(), "d2vm", uuid.New().String())
+	if err := os.MkdirAll(tmpPath, os.ModePerm); err != nil {
+		return err
+	}
+	defer func() {
+		if err := os.RemoveAll(tmpPath); err != nil {
+			logrus.Errorf("failed to remove tmp dir %s: %v", tmpPath, err)
+		}
+	}()
+	if _, err := os.Stat(path); err != nil {
+		return err
+	}
+	// convert may not be needed, but this will also copy the file in the tmp dir
+	qcow2 := filepath.Join(tmpPath, "disk.qcow2")
+	if err := qemu_img.Convert(ctx, "qcow2", path, qcow2); err != nil {
+		return err
+	}
+	disk := filepath.Base(qcow2)
+	dockerfileContent := fmt.Sprintf(containerDiskDockerfile, uid, disk)
+	dockerfile := filepath.Join(tmpPath, "Dockerfile")
+	if err := os.WriteFile(dockerfile, []byte(dockerfileContent), os.ModePerm); err != nil {
+		return fmt.Errorf("failed to write dockerfile: %w", err)
+	}
+	if err := docker.Build(ctx, tag, dockerfile, tmpPath); err != nil {
+		return fmt.Errorf("failed to build container disk: %w", err)
+	}
+	return nil
+}

dockerfile.go

@@ -72,15 +72,15 @@ func (d Dockerfile) Render(w io.Writer) error {
 }
 
 func NewDockerfile(release OSRelease, img, password string, networkManager NetworkManager) (Dockerfile, error) {
-	if password == "" {
-		password = "root"
-	}
 	d := Dockerfile{Release: release, Image: img, Password: password, NetworkManager: networkManager}
 	var net NetworkManager
 	switch release.ID {
 	case ReleaseDebian:
 		d.tmpl = debianDockerfileTemplate
 		net = NetworkManagerIfupdown2
+	case ReleaseKali:
+		d.tmpl = debianDockerfileTemplate
+		net = NetworkManagerIfupdown2
 	case ReleaseUbuntu:
 		d.tmpl = ubuntuDockerfileTemplate
 		net = NetworkManagerNetplan

docs/content/reference/d2vm.md

@@ -6,7 +6,7 @@
 
 ```
   -h, --help          help for d2vm
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_build.md

@@ -12,19 +12,21 @@ d2vm build [context directory] [flags]
       --append-to-cmdline string   Extra kernel cmdline arguments to append to the generated one
       --build-arg stringArray      Set build-time variables
   -f, --file string                Name of the Dockerfile
-      --force                      Override output image
+      --force                      Override output qcow2 image
   -h, --help                       help for build
       --network-manager string     Network manager to use for the image: none, netplan, ifupdown
   -o, --output string              The output image, the extension determine the image format, raw will be used if none. Supported formats: qcow2 qed raw vdi vhd vmdk (default "disk0.qcow2")
-  -p, --password string            Root user password (default "root")
+  -p, --password string            Optional root user password
+      --push                       Push the container disk image to the registry
       --raw                        Just convert the container to virtual machine image without installing anything more
   -s, --size string                The output image size (default "10G")
+  -t, --tag string                 Container disk Docker image tag
 ```
 
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_completion.md

@@ -17,7 +17,7 @@ See each sub-command's help for details on how to use the generated script.
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_completion_bash.md

@@ -40,7 +40,7 @@ d2vm completion bash
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_completion_fish.md

@@ -31,7 +31,7 @@ d2vm completion fish [flags]
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_completion_powershell.md

@@ -28,7 +28,7 @@ d2vm completion powershell [flags]
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_completion_zsh.md

@@ -38,7 +38,7 @@ d2vm completion zsh [flags]
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_convert.md

@@ -10,20 +10,22 @@ d2vm convert [docker image] [flags]
 
 ```
       --append-to-cmdline string   Extra kernel cmdline arguments to append to the generated one
-  -f, --force                      Override output qcow2 image
+      --force                      Override output qcow2 image
   -h, --help                       help for convert
       --network-manager string     Network manager to use for the image: none, netplan, ifupdown
   -o, --output string              The output image, the extension determine the image format, raw will be used if none. Supported formats: qcow2 qed raw vdi vhd vmdk (default "disk0.qcow2")
-  -p, --password string            The Root user password (default "root")
+  -p, --password string            Optional root user password
       --pull                       Always pull docker image
+      --push                       Push the container disk image to the registry
       --raw                        Just convert the container to virtual machine image without installing anything more
   -s, --size string                The output image size (default "10G")
+  -t, --tag string                 Container disk Docker image tag
 ```
 
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_run.md

@@ -11,7 +11,7 @@ Run the virtual machine image
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_run_hetzner.md

@@ -20,7 +20,7 @@ d2vm run hetzner [options] image-path [flags]
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_run_qemu.md

@@ -12,9 +12,9 @@ d2vm run qemu [options] [image-path] [flags]
       --accel string            Choose acceleration mode. Use 'tcg' to disable it. (default "hvf:tcg")
       --arch string             Type of architecture to use, e.g. x86_64, aarch64, s390x (default "x86_64")
       --cpus uint               Number of CPUs (default 1)
-      --data string             String of metadata to pass to VM; error to specify both -data and -data-file
+      --data string             String of metadata to pass to VM
       --detached                Set qemu container to run in the background
-      --device multiple-flag    Add USB host device(s). Format driver[,prop=value][,...] -- add device, like -device on the qemu command line. (default A multiple flag is a type of flag that can be repeated any number of times)
+      --device multiple-flag    Add USB host device(s). Format driver[,prop=value][,...] -- add device, like --device on the qemu command line. (default A multiple flag is a type of flag that can be repeated any number of times)
       --disk disk               Disk config, may be repeated. [file=]path[,size=1G][,format=qcow2] (default [])
       --gui                     Set qemu to use video output instead of stdio
   -h, --help                    help for qemu
@@ -28,7 +28,7 @@ d2vm run qemu [options] [image-path] [flags]
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_run_vbox.md

@@ -22,7 +22,7 @@ d2vm run vbox [options] image-path [flags]
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

docs/content/reference/d2vm_version.md

@@ -15,7 +15,7 @@ d2vm version [flags]
 ### Options inherited from parent commands
 
 ```
-  -t, --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
+      --time string   Enable formated timed output, valide formats: 'relative (rel | r)', 'full (f)' (default "none")
   -v, --verbose       Enable Verbose output
 ```
 

go.mod

@@ -13,6 +13,7 @@ require (
 	github.com/pkg/sftp v1.10.1
 	github.com/sirupsen/logrus v1.8.1
 	github.com/spf13/cobra v1.4.0
+	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.7.0
 	github.com/svenwiltink/sparsecat v1.0.0
 	go.linka.cloud/console v0.0.0-20220910100646-48f9f2b8843b
@@ -55,7 +56,6 @@ require (
 	github.com/prometheus/common v0.26.0 // indirect
 	github.com/prometheus/procfs v0.6.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/vbatts/tar-split v0.11.2 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
 	golang.org/x/net v0.0.0-20211216030914-fe4d6282115f // indirect

os_release.go

@@ -34,6 +34,7 @@ const (
 	ReleaseAlpine Release = "alpine"
 	ReleaseCentOS Release = "centos"
 	ReleaseRHEL   Release = "rhel"
+	ReleaseKali   Release = "kali"
 )
 
 type Release string
@@ -44,6 +45,8 @@ func (r Release) Supported() bool {
 		return true
 	case ReleaseDebian:
 		return true
+	case ReleaseKali:
+		return true
 	case ReleaseAlpine:
 		return true
 	case ReleaseCentOS:

pgp.pub

@@ -0,0 +1,51 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+
+mQINBGLCuWcBEADzbuC8tyB0zPmReCu0Jwvc9tJqErtaYXxizM2XGiYc6iYOheFb
+FnSFwlWK4TmtZ0XxIMMMJpIMVy1eEdbv3SBqHYXDWu+FzbEF32zfh/Sp4jzTbAZy
+eKdXdcKYShhBNBnvfdQBsKG8J5PJi37w9yX9IVfviPymz1j42w7kvPMt6KM0HC3q
+tJzwYLt6yizpY1DkT1lhypK2cgWrbBBTzxiUVHAK1Zxxr+MkSFowW5MHV0nfVWL2
+5RU9mJny98YYvUJ7cQ1WaBjDQ9LSwMi+BVfZ87ABsc6NOyxPyEq7g/qwXdWL9QVq
+bVFKvj2AaYeVJn17LYG3Ao8FfAt2tUN3FasrvmXnXumkqErwrCkGG5LFuRE11X/2
+ntSf2Ra+dp81XHmugGHKdqdridQZPFTHeMQgk5Nyo0nNaQ0dO8w0zvLEqqQlEe4O
+lTEK6MRPN2Pq9Rl2dC4YHU6ctnBEIwf98ysK2oIuHEnt8YZALg1jB2a1ANYOy25Z
+UHOr2FlhCD6kdVpwGp99NH0lhKRcGl9BFDakYGWkjCqZT3UAZa+qKIp+wfNn75kI
+1WjsIg0JFeH57RydlZf0eCelHY90rUKLB0kAlt/mWjoDyFnfrVHVfDh4yb/Gnwts
+0cFWmink7fB0OLvzQvNGYPDkGG9tyjmepFm3OdD+wi2x3fPhPnB/o+sXXQARAQAB
+tCJsaW5rYS1jbG91ZCA8c2VjdXJpdHlAbGlua2EtY2xvdWQ+iQJOBBMBCgA4FiEE
+dRYaVRQmvhJpUDzmgEjKN+QesW0FAmLCuWcCGwMFCwkIBwIGFQoJCAsCBBYCAwEC
+HgECF4AACgkQgEjKN+QesW0feQ/9H3HOjEv45em9JrdQu9UqjIG7VJG8En0fy2K2
+oSQ65rOCRk1oxet2hay/jIkNfXwhSQ7pAOzs69JnDrXLYS9gZ3gSHRoWXSRe1way
+mPIorq0hxaBJ6iJybmgOj4gqFmK+ObwcGUZq8y9hdD1UkQG9zM3+jPOh9Bd9t8ld
+S8H4Sew1ZC2vVqh281BxvmJM9w94EuVw+4gJ72Rg74W2TOhK0qEvblHU7UbLI3s5
+w+WvoLHQw3V6DmhuTsFWXWY1WXtlsYa5dE3QLWtXqCzt+yL1lw1opxgnP5BTBwjP
+v5nZCWw6RC1EJxd2ac5IK8bXLcM0BtmHbVqA7cbeU4jc5TBj0Lu5o1AfUUCbyRMg
+i7LDVn9ivCD3mymyGCtNsdj+oad9MwKJMlHNwzWNf2yE8GjxO09RYx/AzlubozCG
+qlJvsEQUvUftGDW1adSdT+QRfIIS9pg2nZbMe+U0udrjpV1OGZDPgO7UNxi9u2Kl
+JrVZ460K2psJEOBOaHg6Baj3HU1Ac6+UCigXbOx7WD7o3Rj8eNf1bIX/MXPfbBkv
+Hh4dUchPuo1ImvU59w/jseuyXdiijCo5b5qeK2227XvXHIy3138x6gzs6JL5TXRp
+F+D87+2WDu3yKjch0Sk0t+dKvuwsul/17wzDvMBIBMW96hRJhDVbUfaMPahf6Cfp
+Gk3+t5W5Ag0EYsK5ZwEQAMJsn7eADPF9GshQRkzCcSxkeCh1OXWgPTOVEkBwKTeH
+TXTEV4seANFHeUrTru3U/uuCsWi8eiwe5HTJKtPANud1iaUuMn7AyU0NteC8Bk9U
+duwQXt02nke5jruNYOBm4j5yQYIBfa75ziDLUz7+NeAXIc3DhRM9gtE4N+5L95p+
+bPPI077TldUkSLZM2kVIeWiAmZ1zsTg6SDW8wFMBoFfOtkEffZco4gzHlj8vPAc6
+jkbgwrH7RZsWBcz2t7l/1AycDNPTElgFxnLxmBG01bNQuXTviNMZ0trNCtk2RdkS
+iSLhIc3hMmaxnqy2mDzCVq/DCERo54iadXTJew9Y5jh2cO6V/rTJSnwaIh9AHMor
+VO/kWPOzC/XMj1kL27DMwbByzm3619p0FgLPYqMdiWkmGhjVr0kcM+sBcepMliRs
+eQy6q47IFm90XyUL9IXMtLWeleQ5/zHjD1CsKc/bSB5lzxLsv/IckYq8c9bbbPA0
+bCGosQNQQMZTR/9sJ5VmYOWzDimqvX8l12GvYiEQQFO/lTypYjtE3XxjtXGRIA+4
+i1t20Lmy2Scl1WV+LMbhk0i+sEBOzuD5jctQWqX68KYYUqWbiqULsrdHtgodITDG
+CrlVvwB9BACb2JVDjbUhY3VDl3yHopmGM0kMZGLUvRaJOnCh2Dc+B/cCt/iiO6UB
+ABEBAAGJAjYEGAEKACAWIQR1FhpVFCa+EmlQPOaASMo35B6xbQUCYsK5ZwIbDAAK
+CRCASMo35B6xbRuWEACFH9cR36izop9hOu7oEnwLABGC6U4mipTvgKD4wu1SS0U4
+NRPzkTm7FGxXy2QPbDOj1/G7dvHc7fGzQimofGRIW/4/GVWRQi2pQJwKTP1KlRid
+e9oFG1+MTc6o1ZBkhz1GQbMGxeu9Na0c0DzXGMrsP6G75WSUEX+5srXuJtrxRrBy
+E3BICzn5YyWTT2cLgN3AucalL04TIqGiocvi3X/n03CXe2M2mbJFo1y1bl6M/tmR
+0fktpVlCDRs6EphMXHsKSTtO6pKPN6M0Lg50vS512xNGyc/tL2aJw/snO0vMDHSU
+JDebH4LjV1RmTRnUJxERDCfe8Jh1bsIa4u8DcVmoLyjTMXJrPNUycYIkyfp9mwAX
+LjBY2mW6Qyfp3IVdQUS1N8okIk1TiHIZC7DXdXuH7WnfEDDTV9fY91jY835y8stj
+lpX0UGjm+npt2Vyth9kIQtgUnnBl76PdjAmCHztEaL1SXiQh6h2DhdkfeVX4GUrF
+BE02K7Qy6ERZo7274WLlJOiW5EyyOKVHYrSzRLajsh8xHus270FhfcKRQG+LO8f+
+2ecvNRuNZcMiwZDUwSzUkabXk8C9F/3EOcUnHoznh/g//Z17/ZktIuJy4DLLkYIk
+jtPL12rsffEIbEo7Ok/ntyVf5rgitiHu5xSTzjG6cj0olm46rsJ0h3hij58MOw==
+=3bbH
+-----END PGP PUBLIC KEY BLOCK-----

pkg/docker/docker.go

@@ -96,8 +96,11 @@ func Pull(ctx context.Context, tag string) error {
 	return Cmd(ctx, "image", "pull", tag)
 }
 
+func Push(ctx context.Context, tag string) error {
+	return Cmd(ctx, "image", "push", tag)
+}
+
 func RunInteractiveAndRemove(ctx context.Context, args ...string) error {
-	logrus.Tracef("running 'docker run --rm -i -t %s'", strings.Join(args, " "))
 	cmd := exec.CommandContext(ctx, "docker", append([]string{"run", "--rm", "-it"}, args...)...)
 	cmd.Stdin = os.Stdin
 	cmd.Stdout = os.Stdout
@@ -129,6 +132,9 @@ func RunD2VM(ctx context.Context, image, version, in, out, cmd string, args ...s
 	}
 	a := []string{
 		"--privileged",
+		"-e",
+		// yes... it is kind of a dirty hack
+		fmt.Sprintf("SUDO_UID=%d", os.Getuid()),
 		"-v",
 		fmt.Sprintf("%s:/var/run/docker.sock", dockerSocket()),
 		"-v",

pkg/exec/exec.go

@@ -26,8 +26,6 @@ import (
 
 var (
 	Run = RunNoOut
-
-	CommandContext = exec.CommandContext
 )
 
 func SetDebug(debug bool) {
@@ -39,6 +37,11 @@ func SetDebug(debug bool) {
 	}
 }
 
+func CommandContext(ctx context.Context, c string, args ...string) *exec.Cmd {
+	logrus.Debugf("$ %s %s", c, strings.Join(args, " "))
+	return exec.CommandContext(ctx, c, args...)
+}
+
 func RunDebug(ctx context.Context, c string, args ...string) error {
 	logrus.Debugf("$ %s %s", c, strings.Join(args, " "))
 	cmd := exec.CommandContext(ctx, c, args...)

pkg/qemu_img/qemu_img.go

@@ -0,0 +1,114 @@
+// Copyright 2022 Linka Cloud  All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package qemu_img
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os/exec"
+	"path/filepath"
+
+	"go.linka.cloud/d2vm/pkg/docker"
+	exec2 "go.linka.cloud/d2vm/pkg/exec"
+)
+
+var (
+	DockerImageName    string
+	DockerImageVersion string
+)
+
+type ImgInfo struct {
+	VirtualSize int    `json:"virtual-size"`
+	Filename    string `json:"filename"`
+	Format      string `json:"format"`
+	ActualSize  int    `json:"actual-size"`
+	DirtyFlag   bool   `json:"dirty-flag"`
+}
+
+func Info(ctx context.Context, in string) (*ImgInfo, error) {
+	var (
+		o   []byte
+		err error
+	)
+	if path, _ := exec.LookPath("qemu-img"); path == "" {
+		inAbs, err := filepath.Abs(in)
+		if err != nil {
+			return nil, fmt.Errorf("failed to get absolute path for %q: %v", path, err)
+		}
+		inMount := filepath.Dir(inAbs)
+		in := filepath.Join("/in", filepath.Base(inAbs))
+		o, err = exec2.CommandContext(
+			ctx,
+			"docker",
+			"run",
+			"--rm",
+			"-v",
+			inMount+":/in",
+			"--entrypoint",
+			"qemu-img",
+			fmt.Sprintf("%s:%s", DockerImageName, DockerImageVersion),
+			"info",
+			in,
+			"--output",
+			"json",
+		).CombinedOutput()
+	} else {
+		o, err = exec2.CommandContext(ctx, "qemu-img", "info", in, "--output", "json").CombinedOutput()
+	}
+	if err != nil {
+		return nil, fmt.Errorf("%v: %s", err, string(o))
+	}
+	var i ImgInfo
+	if err := json.Unmarshal(o, &i); err != nil {
+		return nil, err
+	}
+	return &i, nil
+}
+
+func Convert(ctx context.Context, format, in, out string) error {
+	if path, _ := exec.LookPath("qemu-img"); path != "" {
+		return exec2.Run(ctx, "qemu-img", "convert", "-O", format, in, out)
+	}
+	inAbs, err := filepath.Abs(in)
+	if err != nil {
+		return fmt.Errorf("failed to get absolute path for %q: %v", in, err)
+	}
+	inMount := filepath.Dir(inAbs)
+	in = filepath.Join("/in", filepath.Base(inAbs))
+
+	outAbs, err := filepath.Abs(out)
+	if err != nil {
+		return fmt.Errorf("failed to get absolute path for %q: %v", out, err)
+	}
+	outMount := filepath.Dir(outAbs)
+	out = filepath.Join("/out", filepath.Base(outAbs))
+
+	return docker.RunAndRemove(
+		ctx,
+		"-v",
+		fmt.Sprintf("%s:/in", inMount),
+		"-v",
+		fmt.Sprintf("%s:/out", outMount),
+		"--entrypoint",
+		"qemu-img",
+		fmt.Sprintf("%s:%s", DockerImageName, DockerImageVersion),
+		"convert",
+		"-O",
+		format,
+		in,
+		out,
+	)
+}

templates/alpine.Dockerfile

@@ -6,13 +6,20 @@ RUN apk update --no-cache && \
     apk add \
       util-linux \
       linux-virt \
+{{ if ge .Release.VersionID "3.17" }} \
+      busybox-openrc \
+      busybox-mdev-openrc \
+      busybox-extras-openrc \
+      busybox-mdev-openrc \
+{{ else }}
       busybox-initscripts \
+{{ end }}
       openrc
 
 RUN for s in bootmisc hostname hwclock modules networking swap sysctl urandom syslog; do rc-update add $s boot; done
 RUN for s in devfs dmesg hwdrivers mdev; do rc-update add $s sysinit; done
 
-RUN echo "root:{{- if .Password}}{{ .Password}}{{- else}}root{{- end}}" | chpasswd
+{{ if .Password }}RUN echo "root:{{ .Password }}" | chpasswd {{ end }}
 
 {{ if eq .NetworkManager "ifupdown"}}
 RUN apk add --no-cache ifupdown-ng

templates/centos.Dockerfile

@@ -17,4 +17,4 @@ RUN dracut --no-hostonly --regenerate-all --force && \
     ln -s $(find . -name 'vmlinuz-*') vmlinuz && \
     ln -s $(find . -name 'initramfs-*.img') initrd.img
 
-RUN echo "root:{{- if .Password}}{{ .Password}}{{- else}}root{{- end}}" | chpasswd
+{{ if .Password }}RUN echo "root:{{ .Password }}" | chpasswd {{ end }}

templates/debian.Dockerfile

@@ -16,7 +16,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
 
 RUN systemctl preset-all
 
-RUN echo "root:{{- if .Password}}{{ .Password}}{{- else}}root{{- end}}" | chpasswd
+{{ if .Password }}RUN echo "root:{{ .Password }}" | chpasswd {{ end }}
 
 {{ if eq .NetworkManager "netplan" }}
 RUN apt install -y netplan.io

templates/ubuntu.Dockerfile

@@ -15,7 +15,7 @@ RUN apt-get update -y && \
 
 RUN systemctl preset-all
 
-RUN echo "root:{{- if .Password}}{{ .Password}}{{- else}}root{{- end}}" | chpasswd
+{{ if .Password }}RUN echo "root:{{ .Password }}" | chpasswd {{ end }}
 
 {{ if eq .NetworkManager "netplan" }}
 RUN apt install -y netplan.io

version.go

@@ -14,8 +14,17 @@
 
 package d2vm
 
+import (
+	"go.linka.cloud/d2vm/pkg/qemu_img"
+)
+
 var (
 	Version   = ""
 	BuildDate = ""
-	Image     = ""
+	Image     = "linkacloud/d2vm"
 )
+
+func init() {
+	qemu_img.DockerImageName = Image
+	qemu_img.DockerImageVersion = Version
+}