static: split cli, engine, and containerd packages

This splits the CLI, Engine, and containerd packages to allow downloading
the cli separate from the daemon, as well as (in future) allowing us to
do a containerd release without also requiring an engine release.

With this patch:

    make REF=v22.06.0-beta.0 VERSION=v22.06.0-beta.0 TARGETPLATFORM=linux/amd64 static

    static/build
    ├── bundles-ce-static-linux-x86_64.tar.gz
    └── linux
        └── amd64
            ├── containerd-1.6.4.tgz
            ├── docker-buildx-plugin-0.8.2.tgz
            ├── docker-cli-22.06.0-beta.0.tgz
            ├── docker-engine-22.06.0-beta.0.tgz
            ├── docker-compose-plugin-2.6.1.tgz
            ├── docker-rootless-extras-22.06.0-beta.0.tgz
            └── docker-scan-plugin-0.17.0.tgz

    2 directories, 8 files

    ls -lh static/build/linux/amd64/
    total 215208
    -rw-r--r--  1 sebastiaan  staff    31M Jun 29 00:21 containerd-1.6.4.tgz
    -rw-r--r--  1 sebastiaan  staff    14M Jun 29 00:21 docker-buildx-plugin-0.8.2.tgz
    -rw-r--r--  1 sebastiaan  staff   8.2M Jun 29 00:21 docker-cli-22.06.0-beta.0.tgz
    -rw-r--r--  1 sebastiaan  staff    19M Jun 29 00:21 docker-engine-22.06.0-beta.0.tgz
    -rw-r--r--  1 sebastiaan  staff   8.8M Jun 29 00:21 docker-compose-plugin-2.6.1.tgz
    -rw-r--r--  1 sebastiaan  staff    19M Jun 29 00:21 docker-rootless-extras-22.06.0-beta.0.tgz
    -rw-r--r--  1 sebastiaan  staff   4.4M Jun 29 00:21 docker-scan-plugin-0.17.0.tgz

Signed-off-by: CrazyMax <[email protected]>
Signed-off-by: Sebastiaan van Stijn <[email protected]>

static/build-static

@@ -22,6 +22,15 @@ fi
 
 source "../scripts/target-platform"
 
+if [ -z "$CONTAINERD_VERSION" ]; then
+	# Select the default version of containerd based on the docker engine source,
+	# which is needed for naming the produced .tgz file. We normalize the value to
+	# always have a "v" prefix.
+	# TODO containerd binaries should be built as part of containerd-packaging, not as part of docker/docker-ce-packaging
+	CONTAINERD_VERSION="$(awk -F'=' '$1 == "ARG CONTAINERD_VERSION" {{sub("v","")}; print "v" $2 }' "${ENGINE_DIR}/Dockerfile.windows")"
+	export CONTAINERD_VERSION
+fi
+
 build_cli() {
 	[ -d "${CLI_DIR:?}/build" ] && rm -r "${CLI_DIR:?}/build"
 	(
@@ -130,6 +139,7 @@ echo "UNAME=$(uname -m)"
 echo "TARGETPLATFORM=${TARGETPLATFORM}"
 echo "CURPLATFORM=${CURPLATFORM}"
 echo "CROSS=${CROSS}"
+echo "CONTAINERD_VERSION=${CONTAINERD_VERSION}"
 
 cgo_enabled=""
 if [ "$TARGETARCH" = "arm" ] && [ -n "$TARGETVARIANT" ]; then
@@ -143,7 +153,9 @@ fi
 
 buildDir="${CURDIR}/build/${TARGETPLATFORM}"
 
-dockerBuildDir="${buildDir}/docker"
+dockerCLIBuildDir="${buildDir}/docker-cli"
+dockerBuildDir="${buildDir}/docker-engine"
+containerdBuildDir="${buildDir}/containerd"
 rootlessExtrasBuildDir="${buildDir}/docker-rootless-extras"
 buildxBuildDir="${buildDir}/docker-buildx"
 composeBuildDir="${buildDir}/docker-compose"
@@ -188,42 +200,75 @@ esac
 # cleanup
 [ -d "${buildDir}" ] && rm -r "${buildDir}"
 
-# docker
-mkdir -p "${dockerBuildDir}"
+# docker CLI
+mkdir -p "${dockerCLIBuildDir}"
+case ${TARGETOS} in
+	linux | darwin)
+		cp "${CLI_DIR}"/build/"${targetPair}"/docker-"${TARGETOS}"-* "${dockerCLIBuildDir}/docker"
+		;;
+	windows)
+		cp "${CLI_DIR}"/build/"${targetPair}"/docker-"${TARGETOS}"-*.exe "${dockerCLIBuildDir}/docker.exe"
+		;;
+esac
+# package docker CLI
 case ${TARGETOS} in
 	linux | darwin)
-		cp "${CLI_DIR}"/build/"${targetPair}"/docker-"${TARGETOS}"-* "${dockerBuildDir}/docker"
+		(
+			set -x
+			tar -C "${buildDir}" -c -z -f "${buildDir}/docker-cli-${STATIC_VERSION}.tgz" docker-cli
+		)
 		;;
 	windows)
-		cp "${CLI_DIR}"/build/"${targetPair}"/docker-"${TARGETOS}"-*.exe "${dockerBuildDir}/docker.exe"
+		(
+			cd "${buildDir}"
+			set -x
+			zip -r "docker-cli-${STATIC_VERSION}.zip" docker-cli
+		)
 		;;
 esac
+
+# docker, containerd, and runc
+mkdir -p "${dockerBuildDir}"
 case ${TARGETOS} in
 	linux)
-		for f in dockerd containerd ctr containerd-shim containerd-shim-runc-v2 docker-init docker-proxy runc; do
+		for f in dockerd docker-init docker-proxy; do
 			if [ -f "${ENGINE_DIR}/bundles/${TARGETPLATFORM}/$f" ]; then
 				cp -L "${ENGINE_DIR}/bundles/${TARGETPLATFORM}/$f" "${dockerBuildDir}/$f"
 			fi
 		done
+		# TODO containerd binaries should be built as part of containerd-packaging, not as part of docker/docker-ce-packaging
+		mkdir -p "${containerdBuildDir}"
+		for f in containerd ctr containerd-shim containerd-shim-runc-v2 runc; do
+			if [ -f "${ENGINE_DIR}/bundles/${TARGETPLATFORM}/$f" ]; then
+				cp -L "${ENGINE_DIR}/bundles/${TARGETPLATFORM}/$f" "${containerdBuildDir}/$f"
+			fi
+		done
 		;;
 	windows)
 		cp "${ENGINE_DIR}"/bundles/"${TARGETPLATFORM}"/dockerd-*.exe "${dockerBuildDir}/dockerd.exe"
 		cp "${ENGINE_DIR}"/bundles/"${TARGETPLATFORM}"/docker-proxy-*.exe "${dockerBuildDir}/docker-proxy.exe"
 		;;
 esac
-# package docker
+# package docker, containerd, and runc
 case ${TARGETOS} in
-	linux | darwin)
+	darwin)
+		(
+			set -x
+			tar -C "${buildDir}" -c -z -f "${buildDir}/docker-engine-${STATIC_VERSION}.tgz" docker-engine
+		)
+		;;
+	linux)
 		(
 			set -x
-			tar -C "${buildDir}" -c -z -f "${buildDir}/docker-${STATIC_VERSION}.tgz" docker
+			tar -C "${buildDir}" -c -z -f "${buildDir}/docker-engine-${STATIC_VERSION}.tgz" docker-engine
+			tar -C "${buildDir}" -c -z -f "${buildDir}/containerd-${CONTAINERD_VERSION#v}.tgz" containerd
 		)
 		;;
 	windows)
 		(
 			cd "${buildDir}"
 			set -x
-			zip -r "docker-${STATIC_VERSION}.zip" docker
+			zip -r "docker-engine-${STATIC_VERSION}.zip" docker-engine
 		)
 		;;
 esac
@@ -358,5 +403,6 @@ fi
 	set -x
 	cd "${buildDir}"
 	rm -r */
+	# bundle is expected to have a tar.gz extension, unlike the other archives, which use .tgz
 	tar -zvcf "${CURDIR}/build/bundles-ce-static-${TARGETOS}-${BUNDLEARCH}.tar.gz" .
 )