Docker app should only be used as a docker CLI plugin

.fossa.yml

@@ -16,7 +16,3 @@ analyze:
     type: go
     target: github.com/docker/app/cmd/docker-app
     path: cmd/docker-app
-  - name: github.com/docker/app/cmd/docker-app-standalone
-    type: go
-    target: github.com/docker/app/cmd/docker-app-standalone
-    path: cmd/docker-app-standalone

Makefile

@@ -41,26 +41,16 @@ check_go_env:
 	@test $$(go list) = "$(PKG_NAME)" || \
 		(echo "Invalid Go environment - The local directory structure must match:  $(PKG_NAME)" && false)
 
-cross: cross-plugin cross-standalone ## cross-compile binaries (linux, darwin, windows)
+cross: cross-plugin ## 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: dynamic
 dynamic: STATIC_FLAGS :=
 dynamic: bin/$(BIN_NAME)
 
-.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

@@ -234,17 +234,18 @@ Removing network hello_default
 
 ## Installation
 
-**Note**: This requires a pre-release version (19.03.0 beta 1 or later) of the
-[Docker CLI](https://download.docker.com).
+**Note**: Docker app is a _command line_ plugin (not be confused with docker _engine_ plugins), extending the `docker` command with `app` sub-commands. 
+It requires [Docker CLI](https://download.docker.com) 19.03.0 or later with experimental features enabled. 
+Either set environment variable `DOCKER_CLI_EXPERIMENTAL=enabled` 
+or update your [docker CLI configuration](https://docs.docker.com/engine/reference/commandline/cli/#experimental-features).
+
+**Note**: Docker-app can't be installed using the `docker plugin install` command (yet)
+
 
 Pre-built static 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 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 a standalone utility
-
-To use the standalone version, use `docker-app` instead of `docker app` and all
-the examples will work the same way.
 
 ### Linux or macOS
 
@@ -255,12 +256,7 @@ curl -fsSL --output "/tmp/docker-app-${OSTYPE}.tar.gz" "https://github.com/docke
 tar xf "/tmp/docker-app-${OSTYPE}.tar.gz" -C /tmp/
 ```
 
-To install as standalone:
-```console
-install -b "/tmp/docker-app-standalone-${OSTYPE}" /usr/local/bin/docker-app
-```
-
-To install as a Docker CLI plugin:
+Install as a Docker CLI plugin:
 ```console
 mkdir -p ~/.docker/cli-plugins && cp "/tmp/docker-app-plugin-${OSTYPE}" ~/.docker/cli-plugins/docker-app
 ```
@@ -273,12 +269,7 @@ Invoke-WebRequest -Uri https://github.com/docker/app/releases/download/v0.8.0/do
 tar xf "docker-app.tar.gz"
 ```
 
-To install as standalone, copy it somewhere in your path:
-```powershell
-cp docker-app-standalone-windows.exe PATH/docker-app.exe
-```
-
-To install as a Docker CLI plugin:
+Install 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

docker.Makefile

@@ -42,16 +42,10 @@ cross: create_bin ## cross-compile binaries (linux, darwin, windows)
 	docker cp $(CROSS_CTNR_NAME):$(PKG_PATH)/bin/$(BIN_NAME)-linux bin/$(BIN_NAME)-linux
 	docker cp $(CROSS_CTNR_NAME):$(PKG_PATH)/bin/$(BIN_NAME)-darwin bin/$(BIN_NAME)-darwin
 	docker cp $(CROSS_CTNR_NAME):$(PKG_PATH)/bin/$(BIN_NAME)-windows.exe bin/$(BIN_NAME)-windows.exe
-	docker cp $(CROSS_CTNR_NAME):$(PKG_PATH)/bin/${BIN_STANDALONE_NAME}-linux bin/${BIN_STANDALONE_NAME}-linux
-	docker cp $(CROSS_CTNR_NAME):$(PKG_PATH)/bin/${BIN_STANDALONE_NAME}-darwin bin/${BIN_STANDALONE_NAME}-darwin
-	docker cp $(CROSS_CTNR_NAME):$(PKG_PATH)/bin/${BIN_STANDALONE_NAME}-windows.exe bin/${BIN_STANDALONE_NAME}-windows.exe
 	docker rm $(CROSS_CTNR_NAME)
 	@$(call chmod,+x,bin/$(BIN_NAME)-linux)
 	@$(call chmod,+x,bin/$(BIN_NAME)-darwin)
 	@$(call chmod,+x,bin/$(BIN_NAME)-windows.exe)
-	@$(call chmod,+x,bin/${BIN_STANDALONE_NAME}-linux)
-	@$(call chmod,+x,bin/${BIN_STANDALONE_NAME}-darwin)
-	@$(call chmod,+x,bin/${BIN_STANDALONE_NAME}-windows.exe)
 
 cli-cross: create_bin
 	docker build $(BUILD_ARGS) --target=build -t $(CLI_IMAGE_NAME)  .
@@ -85,11 +79,11 @@ e2e-cross: create_bin
 	@$(call chmod,+x,bin/test2json-darwin)
 
 tars:
-	tar --transform='flags=r;s|$(BIN_NAME)-linux|$(BIN_NAME)-plugin-linux|' -czf bin/$(BIN_NAME)-linux.tar.gz -C bin $(BIN_NAME)-linux ${BIN_STANDALONE_NAME}-linux
+	tar --transform='flags=r;s|$(BIN_NAME)-linux|$(BIN_NAME)-plugin-linux|' -czf bin/$(BIN_NAME)-linux.tar.gz -C bin $(BIN_NAME)-linux
 	tar czf bin/$(BIN_NAME)-e2e-linux.tar.gz -C bin $(BIN_NAME)-e2e-linux
-	tar --transform='flags=r;s|$(BIN_NAME)-darwin|$(BIN_NAME)-plugin-darwin|' -czf bin/$(BIN_NAME)-darwin.tar.gz -C bin $(BIN_NAME)-darwin ${BIN_STANDALONE_NAME}-darwin
+	tar --transform='flags=r;s|$(BIN_NAME)-darwin|$(BIN_NAME)-plugin-darwin|' -czf bin/$(BIN_NAME)-darwin.tar.gz -C bin $(BIN_NAME)-darwin
 	tar czf bin/$(BIN_NAME)-e2e-darwin.tar.gz -C bin $(BIN_NAME)-e2e-darwin
-	tar --transform='flags=r;s|$(BIN_NAME)-windows|$(BIN_NAME)-plugin-windows|' -czf bin/$(BIN_NAME)-windows.tar.gz -C bin $(BIN_NAME)-windows.exe ${BIN_STANDALONE_NAME}-windows.exe
+	tar --transform='flags=r;s|$(BIN_NAME)-windows|$(BIN_NAME)-plugin-windows|' -czf bin/$(BIN_NAME)-windows.tar.gz -C bin $(BIN_NAME)-windows.exe
 	tar czf bin/$(BIN_NAME)-e2e-windows.tar.gz -C bin $(BIN_NAME)-e2e-windows.exe
 
 test: test-unit test-e2e ## run all tests

vars.mk

@@ -1,6 +1,5 @@
 PKG_NAME := github.com/docker/app
 BIN_NAME ?= docker-app
-BIN_STANDALONE_NAME := ${BIN_NAME}-standalone
 E2E_NAME := $(BIN_NAME)-e2e
 
 # Variables for fossa scan