Initial commit

.github/workflows/image.yml

@@ -0,0 +1,35 @@
+name: Build docker s6-overlay rootfs image
+
+on:
+  push:
+    branches: master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v2
+      - name: Cache Docker layers
+        uses: actions/cache@v2
+        id: cache
+        with:
+          path: /tmp/.buildx-cache
+          key: ${{ runner.os }}-buildx-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.os }}-buildx-        
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          config-inline: |
+            [worker.oci]
+              max-parallelism = 16
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+      - name: Build image
+        run: build/bin/build

Dockerfile

@@ -0,0 +1,23 @@
+# First stage - Download s6-overlay
+ARG DOWNLOADER_ALPINE_VERSION=3.15
+
+# First stage - Download s6-overlay and unpack it
+FROM --platform=${TARGETPLATFORM} alpine:${DOWNLOADER_ALPINE_VERSION} AS downloader
+
+ARG TARGETPLATFORM
+
+# S6 Overlay
+ARG S6_OVERLAY_VERSION="v2.2.0.3"
+ARG S6_OVERLAY_RELEASE="https://github.com/just-containers/s6-overlay/releases/download/${S6_OVERLAY_VERSION}/s6-overlay-${TARGETPLATFORM}.tar.gz"
+
+RUN wget -O /tmp/s6overlay.tar.gz $(echo ${S6_OVERLAY_RELEASE} | sed 's/linux\///g' | sed 's/arm64/aarch64/g' | sed 's/arm\/v7/armhf/g') \
+    && mkdir -p /s6-overlay \
+    && tar xzf /tmp/s6overlay.tar.gz -C /s6-overlay
+
+
+# Final stage
+FROM scratch AS s6-rootfs
+
+LABEL maintainer="Aleksandar Puharic <aleksandar@puharic.com>"
+
+COPY --from=downloader ["/s6-overlay/", "/"]

README.md

@@ -0,0 +1 @@
+### S6-overlay rootfs

build/bin/build

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+docker buildx bake --push --file build/docker-bake.hcl

build/docker-bake.hcl

@@ -0,0 +1,55 @@
+group "default" {
+  targets = ["2.1.0.2", "2.2.0.0", "2.2.0.1", "2.2.0.2", "2.2.0.3"]
+}
+
+target "build-dockerfile" {
+  dockerfile = "Dockerfile"
+}
+
+target "build-platforms" {
+  platforms = ["linux/amd64", "linux/armhf", "linux/aarch64"]
+}
+
+target "build-common" {
+  pull = true
+}
+
+target "2.1.0.2" {
+  inherits = ["build-dockerfile", "build-platforms", "build-common"]
+  tags     = ["docker.io/nlss/s6-rootfs:2.1.0.2", "docker.io/nlss/s6-rootfs:2.1"]
+  args = {
+    S6_OVERLAY_VERSION = "v2.1.0.2"
+  }
+}
+
+target "2.2.0.0" {
+  inherits = ["build-dockerfile", "build-platforms", "build-common"]
+  tags     = ["docker.io/nlss/s6-rootfs:2.2.0.0"]
+  args = {
+    S6_OVERLAY_VERSION = "v2.2.0.0"
+  }
+}
+
+target "2.2.0.1" {
+  inherits = ["build-dockerfile", "build-platforms", "build-common"]
+  tags     = ["docker.io/nlss/s6-rootfs:2.2.0.1"]
+  args = {
+    S6_OVERLAY_VERSION = "v2.2.0.1"
+  }
+}
+
+target "2.2.0.2" {
+  inherits = ["build-dockerfile", "build-platforms", "build-common"]
+  tags     = ["docker.io/nlss/s6-rootfs:2.2.0.2"]
+  args = {
+    S6_OVERLAY_VERSION = "v2.2.0.2"
+  }
+}
+
+target "2.2.0.3" {
+  inherits = ["build-dockerfile", "build-platforms", "build-common"]
+  tags     = ["docker.io/nlss/s6-rootfs:2.2.0.3", "docker.io/nlss/s6-rootfs:2.2", "docker.io/nlss/s6-rootfs:latest"]
+  args = {
+    S6_OVERLAY_VERSION = "v2.2.0.3"
+  }
+}