add gitlab ci

3 files changed, 182 insertions, 1 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000..1715d07
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,103 @@
+image: alpinelinux/docker-cli
+stages:
+  - build
+  - push
+  - manifest
+  - cleanup
+
+# Build jobs
+
+build-v3.8:
+  stage: build
+  script:
+    - ./make_images.sh build v3.8
+
+build-v3.9:
+  stage: build
+  script:
+    - ./make_images.sh build v3.9
+
+build-v3.10:
+  stage: build
+  script:
+    - ./make_images.sh build v3.10
+
+build-v.3.11:
+  stage: build
+  script:
+    - ./make_images.sh build v3.11
+
+build-edge:
+  stage: build
+  script:
+    - ./make_images.sh build edge
+
+# Push jobs
+
+push-v3.8:
+  stage: push
+  script:
+    - ./make_images.sh push v3.8
+
+push-v3.9:
+  stage: push
+  script:
+    - ./make_images.sh push v3.9
+
+push-v3.10:
+  stage: push
+  script:
+    - ./make_images.sh push v3.10
+
+push-v.3.11:
+  stage: push
+  script:
+    - ./make_images.sh push v3.11
+
+push-edge:
+  stage: push
+  script:
+    - ./make_images.sh push edge
+
+manifest-v3.8:
+  stage: manifest
+  variables:
+    DOCKER_CLI_EXPERIMENTAL: enabled
+  script:
+    - ./make_images.sh manifest v3.8
+
+manifest-v3.9:
+  stage: manifest
+  variables:
+    DOCKER_CLI_EXPERIMENTAL: enabled
+  script:
+    - ./make_images.sh manifest v3.9
+
+manifest-v3.10:
+  stage: manifest
+  variables:
+    DOCKER_CLI_EXPERIMENTAL: enabled
+  script:
+    - ./make_images.sh manifest v3.10
+
+manifest-v3.11:
+  stage: manifest
+  variables:
+    DOCKER_CLI_EXPERIMENTAL: enabled
+  script:
+    - ./make_images.sh manifest v3.11
+
+manifest-edge:
+  stage: manifest
+  variables:
+    DOCKER_CLI_EXPERIMENTAL: enabled
+  script:
+    - ./make_images.sh manifest edge
+
+# cleanup images/layers
+
+cleanup:
+  stage: cleanup
+  script:
+    - docker system prune --force
+
diff --git a/Dockerfile.in b/Dockerfile.in
index 4da02eb..1b0424f 100644
--- a/Dockerfile.in
+++ b/Dockerfile.in
@@ -1,4 +1,4 @@
-FROM alpine:%%ALPINE_TAG%%
+FROM %%ALPINE_IMG%%/alpine:%%ALPINE_TAG%%
 MAINTAINER Richard Mortier <mort@cantab.net>
 
 RUN rm /etc/apk/repositories && \
diff --git a/make_images.sh b/make_images.sh
new file mode 100755
index 0000000..1d2be49
--- /dev/null
+++ b/make_images.sh
@@ -0,0 +1,78 @@
+#!/bin/sh
+
+set -eu
+
+readonly NAMESPACE="${NAMESPACE:=alpinelinux}"
+readonly PROJECT="${PROJECT:=docker-alpine}"
+readonly ARCHES="${ARCHES:=x86 x86_64 armhf armv7 aarch64 ppc64le s390x}"
+readonly TEMPLATE="Dockerfile.in"
+
+readonly OPERATION="$1"
+readonly RELEASE="$2"
+
+die() {
+	echo "$1" >&2
+	exit 1
+}
+
+arch_to_image() {
+	case $1 in
+		armv7) echo arm32v7 ;;
+		aarch64) echo arm64v8 ;;
+		x86_64) echo amd64 ;;
+		armhf) echo arm32v6 ;;
+		x86) echo i386 ;;
+		ppc64le) echo ppc64le ;;
+		s390x) echo s390x ;;
+		*) die "Unknown arch detected: \"$1\""
+	esac
+}
+
+build() {
+	for arch in $ARCHES; do
+		[ "$RELEASE" = "v3.8" ] && [ "$arch" = "armv7" ] && continue
+		sed -e "s/%%ALPINE_IMG%%/$(arch_to_image $arch)/" \
+			-e "s/%%ALPINE_TAG%%/${RELEASE/v/}/" \
+			-e "s/%%ALPINE_REL%%/$RELEASE/" "$TEMPLATE" > Dockerfile
+		docker build --no-cache -t "$NAMESPACE/$PROJECT:$RELEASE-$arch" . || \
+			die "Failed to build docker-abuild:$RELEASE-$arch"
+	done
+}
+
+push() {
+	printf "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" \
+		--password-stdin || die "Failed to login to docker hub"
+
+	for arch in $ARCHES; do
+		[ "$RELEASE" = "v3.8" ] && [ "$arch" = "armv7" ] && continue
+		docker push "$NAMESPACE/$PROJECT:$RELEASE-$arch" || \
+			die "Failed to push docker-abuild:$RELEASE-$arch"
+	done
+}
+
+manifest() {
+	local images= arch=
+
+	printf "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" \
+        --password-stdin || die "Failed to login to docker hub"
+
+	for arch in $ARCHES; do
+		[ "$RELEASE" = "v3.8" ] && [ "$arch" = "armv7" ] && continue
+		images="$images $NAMESPACE/$PROJECT:$RELEASE-$arch"
+	done
+
+	docker manifest create --amend "$NAMESPACE/$PROJECT" $images || \
+		die "Failed to create manifest"
+	docker manifest push --purge "$NAMESPACE/$PROJECT" || \
+		die "Failed to push manifest"
+}
+
+[ "$RELEASE" ] || die "Second argument needs to be a alpine release"
+
+case $OPERATION in
+	build) build ;;
+	push) push ;;
+	manifest) manifest ;;
+	*) die "First argument needs to be build|push|manifest" ;;
+esac
+