Transform docker-app as a docker-cli plugin

Dockerfile

@@ -8,7 +8,10 @@ RUN apt-get install -y -q --no-install-recommends \
 
 WORKDIR /go/src/github.com/docker/cli
 
-RUN git clone https://github.com/docker/cli.git .
+RUN git clone https://github.com/chris-crone/cli . && git checkout d6bfd7e5592dad85969516c131d33910fa5ebd58
+# FIXME(ulyssessouza): Go back to the line below when PRs https://github.com/docker/cli/pull/1718 and https://github.com/docker/cli/pull/1690 hits the cli
+#RUN git clone https://github.com/docker/cli.git . && git checkout 8ddde26af67f9a76734a1676c635e48da4fe8584
+
 RUN make cross binary && \
  cp build/docker-linux-amd64 /usr/bin/docker
 
@@ -26,13 +29,11 @@ RUN go get -d gopkg.in/mjibson/esc.v0 && \
     rm -rf /go/src/* /go/pkg/* /go/bin/*
 COPY . .
 
-# FIXME(vdemeester) change from docker-app to dev once buildkit is merged in moby/docker
 FROM dev AS cross
 ARG EXPERIMENTAL="off"
 ARG TAG="unknown"
 RUN make EXPERIMENTAL=${EXPERIMENTAL} TAG=${TAG} cross
 
-# FIXME(vdemeester) change from docker-app to dev once buildkit is merged in moby/docker
 FROM cross AS e2e-cross
 ARG EXPERIMENTAL="off"
 ARG TAG="unknown"

Gopkg.toml

@@ -36,9 +36,11 @@ required = ["github.com/wadey/gocovmerge"]
   source = "github.com/simonferquel/containerd"
   revision = "a89234684e5884e51ba195bdb16b1c6952d17f11"
 
+### Waiting on PR https://github.com/docker/cli/pull/1718 and https://github.com/docker/cli/pull/1690 to land on cli ###
 [[override]]
   name = "github.com/docker/cli"
-  revision = "06b837a7d7e1115f3d2aa65c47765e25d4bf845b"
+  source = "https://github.com/chris-crone/cli"
+  revision="d6bfd7e5592dad85969516c131d33910fa5ebd58"
 
 [[override]]
   name = "github.com/deislabs/duffle"

Jenkinsfile.baguette

@@ -8,9 +8,6 @@ pipeline {
     options {
         skipDefaultCheckout(true)
     }
-    environment{
-        DOCKER_BUILDKIT=true
-    }
 
     stages {
         stage('Build') {
@@ -82,6 +79,8 @@ pipeline {
             parallel {
                 stage("Unit Coverage") {
                     environment {
+                        DOCKERAPP_BINARY = '../e2e/coverage-bin'
+                        DOCKERCLI_BINARY = '../docker-linux'
                         CODECOV_TOKEN = credentials('jenkins-codecov-token')
                     }
                     agent {
@@ -148,6 +147,7 @@ pipeline {
                             dir('e2e'){
                                 unstash "e2e"
                             }
+                            sh './docker-linux version'
                             sh './docker-app-e2e-linux -test.v --e2e-path=e2e'
                         }
                     }
@@ -180,6 +180,7 @@ pipeline {
                             dir('e2e'){
                                 unstash "e2e"
                             }
+                            sh './docker-darwin version'
                             sh './docker-app-e2e-darwin -test.v --e2e-path=e2e'
                         }
                     }
@@ -201,11 +202,12 @@ pipeline {
                     steps {
                         dir('src/github.com/docker/app') {
                             checkout scm
+                            unstash "binaries"
+                            sh './docker-windows.exe version'
                             dir('_build') {
                                 unstash "invocation-image"
                                 bat 'docker load -i invocation-image.tar'
                             }
-                            unstash "binaries"
                             dir('examples') {
                                 unstash "examples"
                             }

Makefile

@@ -33,10 +33,22 @@ check_go_env:
 	@test $$(go list) = "$(PKG_NAME)" || \
 		(echo "Invalid Go environment - The local directory structure must match:  $(PKG_NAME)" && false)
 
-cross: bin/$(BIN_NAME)-linux bin/$(BIN_NAME)-darwin bin/$(BIN_NAME)-windows.exe ## cross-compile binaries (linux, darwin, windows)
+cross: cross-plugin cross-standalone ## cross-compile binaries (linux, darwin, windows)
+
+cross-plugin: bin/$(BIN_NAME)-linux bin/$(BIN_NAME)-darwin bin/$(BIN_NAME)-windows.exe
+
+cross-standalone: bin/${BIN_STANDALONE_NAME}-linux bin/${BIN_STANDALONE_NAME}-darwin bin/${BIN_STANDALONE_NAME}-windows.exe
 
 e2e-cross: bin/$(BIN_NAME)-e2e-linux bin/$(BIN_NAME)-e2e-darwin bin/$(BIN_NAME)-e2e-windows.exe
 
+.PHONY: bin/${BIN_STANDALONE_NAME}-windows
+bin/${BIN_STANDALONE_NAME}-%.exe bin/${BIN_STANDALONE_NAME}-%: cmd/${BIN_STANDALONE_NAME} check_go_env
+	GOOS=$* $(GO_BUILD) -o $@ ./$<
+
+.PHONY: bin/${BIN_STANDALONE_NAME}
+bin/${BIN_STANDALONE_NAME}: cmd/${BIN_STANDALONE_NAME} check_go_env
+	$(GO_BUILD) -o $@$(EXEC_EXT) ./$<
+
 .PHONY: bin/$(BIN_NAME)-e2e-windows
 bin/$(BIN_NAME)-e2e-%.exe bin/$(BIN_NAME)-e2e-%: e2e bin/$(BIN_NAME)-%
 	GOOS=$* $(GO_TEST) -c -o $@ ./e2e/

README.md

@@ -31,7 +31,7 @@ services:
       - 5678:5678
 ```
 
-With `docker-app` installed let's create an Application Package based on this Compose file:
+With `docker-app` [installed](#installation) let's create an Application Package based on this Compose file:
 
 ```bash
 $ docker-app init --single-file hello
@@ -187,31 +187,67 @@ Removing network hello_default
 ## Installation
 
 Pre-built binaries are available on [GitHub releases](https://github.com/docker/app/releases) for Windows, Linux and macOS.
+Each tarball contains two binaries:
+- `docker-app-plugin-{linux|darwin|windows.exe}` which is docker-app as a [docker cli plugin](https://github.com/docker/cli/issues/1534). **Note**: This requires a pre-release version of the 
+Docker CLI 
+- `docker-app-standalone-{linux|darwin|windows.exe}` which is docker-app as a standalone utility
+
+To use the `docker-app` plugin, just type `docker app` instead of `docker-app` and all the examples will work the same way:
+```bash
+$ docker app version
+Version:      v0.8
+Git commit:   XXX
+Built:        Wed Feb 27 12:37:06 2019
+OS/Arch:      darwin/amd64
+Experimental: off
+Renderers:    none
+
+$ docker-app version
+Version:      v0.8
+Git commit:   XXX
+Built:        Wed Feb 27 12:37:06 2019
+OS/Arch:      darwin/amd64
+Experimental: off
+Renderers:    none
+```
 
 ### Linux or macOS
 
+Download your OS tarball:
 ```bash
 export OSTYPE="$(uname | tr A-Z a-z)"
 curl -fsSL --output "/tmp/docker-app-${OSTYPE}.tar.gz" "https://github.com/docker/app/releases/download/v0.6.0/docker-app-${OSTYPE}.tar.gz"
 tar xf "/tmp/docker-app-${OSTYPE}.tar.gz" -C /tmp/
-install -b "/tmp/docker-app-${OSTYPE}" /usr/local/bin/docker-app
+```
+
+To install `docker-app` as a standalone:
+```bash
+install -b "/tmp/docker-app-standalone-${OSTYPE}" /usr/local/bin/docker-app
+```
+
+To install `docker-app` as a docker cli plugin:
+```bash
+mkdir -p ~/.docker/cli-plugins && cp "/tmp/docker-app-plugin-${OSTYPE}" ~/.docker/cli-plugins/docker-app
 ```
 
 ### Windows
-```powershell
-function Expand-Tar($tarFile, $dest) {
 
-    if (-not (Get-Command Expand-7Zip -ErrorAction Ignore)) {
-        Install-Package -Scope CurrentUser -Force 7Zip4PowerShell > $null
-    }
+Download the Windows tarball:
+```powershell
+Invoke-WebRequest -Uri https://github.com/docker/app/releases/download/v0.6.0/docker-app-windows.tar.gz -OutFile docker-app.tar.gz -UseBasicParsing
+tar xf "docker-app.tar.gz"
+```
 
-    Expand-7Zip $tarFile $dest
-}
-Invoke-WebRequest -Uri https://github.com/docker/app/releases/download/v0.6.0/docker-app-windows.tar.gz
-Expand-Tar docker-app-windows.tar.gz docker-app-windows.exe
+To install `docker-app` as a standalone, copy it somewhere in your path:
+```powershell
+cp docker-app-plugin-windows.exe PATH/docker-app.exe
 ```
 
-**Note:** To use Application Packages as images (i.e.: `save`, `push`, or `install` when package is not present locally) on Windows, one must be in Linux container mode.
+To install `docker-app` as a docker cli plugin:
+```powershell
+New-Item -ItemType Directory -Path ~/.docker/cli-plugins -ErrorAction SilentlyContinue
+cp docker-app-plugin-windows.exe ~/.docker/cli-plugins/docker-app.exe 
+```
 
 ## Single file or directory representation
 

cmd/docker-app-standalone/main.go

@@ -0,0 +1,50 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+
+	"github.com/docker/app/internal"
+	app "github.com/docker/app/internal/commands"
+	"github.com/docker/cli/cli"
+	"github.com/docker/cli/cli/command"
+	cliflags "github.com/docker/cli/cli/flags"
+	"github.com/sirupsen/logrus"
+)
+
+func main() {
+	dockerCli, err := command.NewDockerCli()
+	if err != nil {
+		fmt.Fprintln(os.Stderr, err)
+	}
+	logrus.SetOutput(dockerCli.Err())
+
+	cmd := app.NewRootCmd("docker-app", dockerCli)
+	configureRootCmd(cmd, dockerCli)
+
+	if err := cmd.Execute(); err != nil {
+		os.Exit(1)
+	}
+}
+
+func configureRootCmd(cmd *cobra.Command, dockerCli *command.DockerCli) {
+	var (
+		opts  *cliflags.ClientOptions
+		flags *pflag.FlagSet
+	)
+
+	cmd.SilenceUsage = true
+	cmd.TraverseChildren = true
+	cmd.PersistentPreRunE = func(cmd *cobra.Command, args []string) error {
+		opts.Common.SetDefaultOptions(flags)
+		return dockerCli.Initialize(opts)
+	}
+	cmd.Version = fmt.Sprintf("%s, build %s", internal.Version, internal.GitCommit)
+
+	opts, flags, _ = cli.SetupRootCommand(cmd)
+	flags.BoolP("version", "v", false, "Print version information")
+	cmd.SetVersionTemplate("docker-app version {{.Version}}\n")
+}

cmd/docker-app/main.go

@@ -1,22 +1,20 @@
 package main
 
 import (
-	"fmt"
-	"os"
-
+	"github.com/docker/app/internal"
+	app "github.com/docker/app/internal/commands"
+	"github.com/docker/cli/cli-plugins/manager"
+	"github.com/docker/cli/cli-plugins/plugin"
 	"github.com/docker/cli/cli/command"
-	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
 )
 
 func main() {
-	dockerCli, err := command.NewDockerCli()
-	if err != nil {
-		fmt.Fprintln(os.Stderr, err)
-		os.Exit(1)
-	}
-	logrus.SetOutput(dockerCli.Err())
-	cmd := newRootCmd(dockerCli)
-	if err := cmd.Execute(); err != nil {
-		os.Exit(1)
-	}
+	plugin.Run(func(dockerCli command.Cli) *cobra.Command {
+		return app.NewRootCmd("app", dockerCli)
+	}, manager.Metadata{
+		SchemaVersion: "0.1.0",
+		Vendor:        "Docker Inc.",
+		Version:       internal.Version,
+	})
 }