Initial commit of pre-built container GitHub Action

.devcontainer/devcontainer.json

@@ -1,38 +1,6 @@
 {
     "name": "Iggy C++ Client",
-    "build": {
-        "dockerfile": "Dockerfile"
-    },
-    "features": {
-        "ghcr.io/devcontainers/features/common-utils:2": {},
-        "ghcr.io/devcontainers/features/docker-in-docker:2": {},
-        "ghcr.io/devcontainers/features/github-cli:1": {},
-        "ghcr.io/devcontainers-contrib/features/act:1": {},
-        "ghcr.io/devcontainers-contrib/features/apt-packages": {
-            "packages": [
-                "autoconf",
-                "autoconf-archive",
-                "automake",
-                "build-essential",
-                "clang-format",
-                "clang-tidy",
-                "doxygen",
-                "gcovr",
-                "graphviz",
-                "lcov",
-                "libtool",
-                "ninja-build",
-                "python3",
-                "xdg-utils"
-            ]
-        },
-        "ghcr.io/devcontainers-contrib/features/markdownlint-cli2:1": {},
-        "ghcr.io/devcontainers-contrib/features/pre-commit:2": {},
-        "ghcr.io/dhoeric/features/hadolint:1": {},
-        "ghcr.io/msclock/features/vcpkg:1": {
-            "vcpkgversion": "stable"
-        }
-    },
+    "image": "docker.io/iggyrs/iggy-cpp-build:latest",
     "customizations": {
         "vscode": {
             "extensions": [

.github/workflows/devcontainer-ci.yml

@@ -0,0 +1,49 @@
+---
+name: devcontainer-ci
+
+on:
+    push:
+        paths:
+            - .github/workflows/devcontainer-ci.yml
+            - images/iggy-cpp-build/.devcontainer/*
+
+env:
+    DOCKERHUB_REGISTRY_NAME: iggyrs/iggy-cpp-build
+
+permissions: read-all
+
+jobs:
+    pre-build-container:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v3
+            - name: Set up QEMU
+              uses: docker/setup-qemu-action@v3
+            - name: Setup Docker buildx for multi-architecture builds
+              uses: docker/setup-buildx-action@v3
+              with:
+                  use: true
+            - name: Install updated Skopeo
+              # This can be omitted once runner images have a version of Skopeo > 1.4.1
+              # See https://github.com/containers/skopeo/issues/1874
+              run: |
+                  REPO_URL="https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/unstable/xUbuntu_22.04"
+                  sudo sh -c "echo 'deb ${REPO_URL}/ /' > /etc/apt/sources.list.d/skopeo.list"
+                  curl -fsSL ${REPO_URL}/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/skopeo.gpg > /dev/null
+
+                  sudo apt update
+                  sudo apt install skopeo
+            - name: Login to Docker Hub
+              uses: docker/login-action@v2
+              with:
+                  username: ${{ secrets.DOCKER_USERNAME }}
+                  password: ${{ secrets.DOCKER_PASSWORD }}
+            - name: Pre-build image
+              uses: devcontainers/[email protected]
+              with:
+                  subFolder: images/iggy-cpp-build
+                  imageName: ${{ env.DOCKERHUB_REGISTRY_NAME }}
+                  cacheFrom: ${{ env.DOCKERHUB_REGISTRY_NAME }}
+                  platform: linux/amd64,linux/arm64
+                  push: always

images/iggy-cpp-build/.devcontainer/Dockerfile

@@ -0,0 +1,4 @@
+FROM mcr.microsoft.com/devcontainers/cpp:1-ubuntu-22.04
+
+# workaround for msclock build issue on arm
+ENV VCPKG_FORCE_SYSTEM_BINARIES=1

images/iggy-cpp-build/.devcontainer/devcontainer.json

@@ -0,0 +1,35 @@
+{
+    "build": {
+        "dockerfile": "Dockerfile"
+    },
+    "features": {
+        "ghcr.io/devcontainers/features/common-utils:2": {},
+        "ghcr.io/devcontainers/features/docker-in-docker:2": {},
+        "ghcr.io/devcontainers/features/github-cli:1": {},
+        "ghcr.io/devcontainers-contrib/features/act:1": {},
+        "ghcr.io/devcontainers-contrib/features/apt-packages": {
+            "packages": [
+                "autoconf",
+                "autoconf-archive",
+                "automake",
+                "build-essential",
+                "clang-format",
+                "clang-tidy",
+                "doxygen",
+                "gcovr",
+                "graphviz",
+                "lcov",
+                "libtool",
+                "ninja-build",
+                "python3",
+                "xdg-utils"
+            ]
+        },
+        "ghcr.io/devcontainers-contrib/features/markdownlint-cli2:1": {},
+        "ghcr.io/devcontainers-contrib/features/pre-commit:2": {},
+        "ghcr.io/dhoeric/features/hadolint:1": {},
+        "ghcr.io/msclock/features/vcpkg:1": {
+            "vcpkgversion": "stable"
+        }
+    }
+}

images/iggy-cpp-build/README.md

@@ -0,0 +1,6 @@
+
+# Iggy C++ Build Container
+
+This directory contains the source for the pre-built devcontainer referenced in `.devcontainer` at the top level.
+
+Under normal circumstances you should not need to modify or load this; it gets build in a dedicated GitHub Action.