Add aarch64 support to DevContainer

.devcontainer/post_create_command.sh

@@ -1,3 +1,5 @@
 #!/usr/bin/env bash
 npm install -g @devcontainers/cli
 pre-commit install
+
+scripts/create_builder.sh

.github/workflows/ci.yaml

@@ -41,6 +41,9 @@ jobs:
             # Check
             pre-commit run --show-diff-on-failure --color=always --all-files || exit -1
 
+            # Create builder for multi-arch builds
+            ./scripts/create_builder.sh
+
             # Build
             ./scripts/build.sh
 
@@ -58,4 +61,4 @@ jobs:
           runCmd: |
             # manually login to ghcr.io for publishing
             echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
-            ./scripts/publish.sh "latest"
+            ./scripts/publish.sh "main"

.github/workflows/release.yaml

@@ -36,6 +36,9 @@ jobs:
             # Check
             pre-commit run --show-diff-on-failure --color=always --all-files || exit -1
 
+            # Create builder for multi-arch builds
+            ./scripts/create_builder.sh
+
             # Build
             ./scripts/build.sh
 
@@ -53,4 +56,4 @@ jobs:
             # manually login to ghcr.io for publishing
             echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
             # Note: "${{ github.ref_name }}" will be the tag name, e.g., "1.0.0"
-            ./scripts/publish.sh "${{ github.ref_name }}"
+            ./scripts/publish.sh "${{ github.ref_name }}" "latest"

README.md

@@ -29,7 +29,7 @@ It should contain the following:
 ````
 
 The `<version>` must be a [valid, published release](https://github.com/eclipse-score/devcontainer/tags).
-You can also use `latest` as `<version>` to automatically follow the `main` branch - but be aware that this can result in undesired updates.
+You can also use `main` as `<version>` to automatically follow the `main` branch, and `latest` to follow release tags - but be aware that this can result in undesired updates.
 
 To start using the container, click the **Reopen in Container** button when prompted by Visual Studio Code:
 

scripts/build.sh

@@ -1,4 +1,5 @@
 #!/usr/bin/env bash
 set -euxo pipefail
 
-devcontainer build --workspace-folder src/s-core-devcontainer --image-name ghcr.io/eclipse-score/devcontainer:latest --cache-from ghcr.io/eclipse-score/devcontainer
+devcontainer build --platform linux/aarch64 --workspace-folder src/s-core-devcontainer --image-name ghcr.io/eclipse-score/devcontainer --cache-from ghcr.io/eclipse-score/devcontainer
+devcontainer build --platform linux/amd64 --workspace-folder src/s-core-devcontainer --image-name ghcr.io/eclipse-score/devcontainer --cache-from ghcr.io/eclipse-score/devcontainer

scripts/create_builder.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+set -euxo pipefail
+
+docker buildx create --name multiarch --driver docker-container --use

scripts/publish.sh

@@ -1,10 +1,19 @@
 #!/usr/bin/env bash
 set -euxo pipefail
 
-TAG="${1:-latest}"
-
-if [[ "$TAG" != "latest" ]]; then
-    docker tag "ghcr.io/eclipse-score/devcontainer:latest" "ghcr.io/eclipse-score/devcontainer:${TAG}"
+IMAGES=("--image-name \"ghcr.io/eclipse-score/devcontainer:main\"")
+if [ "$#" -gt 0 ]; then
+    IMAGES=()
+    for arg in "$@"; do
+        IMAGES+=("--image-name \"ghcr.io/eclipse-score/devcontainer:${arg}\"")
+    done
 fi
 
-docker push "ghcr.io/eclipse-score/devcontainer:${TAG}"
+DEVCONTAINER_CALL="devcontainer build --push --workspace-folder src/s-core-devcontainer --cache-from ghcr.io/eclipse-score/devcontainer"
+
+for IMAGE in "${IMAGES[@]}"; do
+    DEVCONTAINER_CALL+=" $IMAGE"
+done
+
+eval "$DEVCONTAINER_CALL --platform linux/aarch64"
+eval "$DEVCONTAINER_CALL --platform linux/amd64"

src/s-core-devcontainer/.devcontainer/devcontainer.json

@@ -42,8 +42,18 @@
         },
         "./s-core-local": {}
     },
+    "overrideFeatureInstallOrder": [
+        // this order makes it more convenient to develop the s-core-local feature, since it will be installed last
+        // which means changes to it will be applied without needing to rebuild all other features
+        "ghcr.io/devcontainers/features/git",
+        "ghcr.io/devcontainers/features/git-lfs",
+        "ghcr.io/devcontainers/features/common-utils",
+        "ghcr.io/devcontainers-community/features/llvm",
+        "ghcr.io/devcontainers/features/rust",
+        "ghcr.io/devcontainers/features/python",
+        "./s-core-local"
+    ],
     "remoteUser": "vscode",
-    "initializeCommand": "mkdir -p ${localEnv:HOME}/.cache/bazel",
     "customizations": {
         "vscode": {
             "extensions": [

src/s-core-devcontainer/.devcontainer/s-core-local/install.sh

@@ -15,6 +15,8 @@ DEBIAN_FRONTEND=noninteractive
 # Read tool versions + metadata into environment variables
 . /devcontainer/features/s-core-local/versions.sh
 
+ARCHITECTURE=$(dpkg --print-architecture)
+
 apt-get update
 
 # INSTALL CONTAINER BUILD DEPENDENCIES
@@ -28,37 +30,62 @@ apt-get install -y graphviz="${graphviz_version}*"
 # Protobuf compiler, via APT (needed by FEO)
 apt-get install -y protobuf-compiler="${protobuf_compiler_version}*"
 
-# Bazel, via APT
-# - ghcr.io/devcontainers-community/features/bazel uses bazelisk, which has a few problems:
-#   - It does not install bash autocompletion.
-#   - The bazel version is not pinned, which is required to be reproducible and to have coordinated, tested tool updates.
-#   - In general, pre-built containers *shall not* download "more tools" from the internet.
-#     This is an operational risk (security, availability); it makes the build non-reproducible,
-#     and it prevents the container from working in air-gapped environments.
-curl -fsSL https://bazel.build/bazel-release.pub.gpg | gpg --dearmor > bazel-archive-keyring.gpg
-mv bazel-archive-keyring.gpg /usr/share/keyrings
-echo "deb [arch=amd64 signed-by=/usr/share/keyrings/bazel-archive-keyring.gpg] https://storage.googleapis.com/bazel-apt stable jdk1.8" | tee /etc/apt/sources.list.d/bazel.list
-apt-get update
-apt-get install -y bazel=${bazel_version}
+# Bazelisk, directly from GitHub
+# Using the existing devcontainer feature is not optimal:
+# - it does not check the SHA256 checksum of the downloaded file
+# - it cannot pre-install a specific version of Bazel, or prepare bash completion
+BAZELISK_VARIANT="amd64"
+SHA256SUM="${bazelisk_amd64_sha256}"
+if [ "${ARCHITECTURE}" = "arm64" ]; then
+    BAZELISK_VARIANT="arm64"
+    SHA256SUM="${bazelisk_arm64_sha256}"
+fi
+curl -L "https://github.com/bazelbuild/bazelisk/releases/download/v${bazelisk_version}/bazelisk-${BAZELISK_VARIANT}.deb" -o /tmp/bazelisk.deb
+echo "${SHA256SUM} /tmp/bazelisk.deb" | sha256sum -c - || exit -1
+apt-get install -y --no-install-recommends --fix-broken /tmp/bazelisk.deb
+rm /tmp/bazelisk.deb
+
+# Pre-install a fixed Bazel version, setup the bash command completion
+export USE_BAZEL_VERSION=${bazel_version}
+bazel help completion bash > /tmp/bazel-complete.bash
+ls -lah /tmp/bazel-complete.bash
+mkdir -p /etc/bash_completion.d
+mv /tmp/bazel-complete.bash /etc/bash_completion.d/bazel-complete.bash
+sh -c "echo 'export USE_BAZEL_VERSION=${bazel_version}' >> /etc/profile.d/bazel.sh"
 
 # Buildifier, directly from GitHub (apparently no APT repository available)
 # The version is pinned to a specific release, and the SHA256 checksum is provided by the devcontainer-features.json file.
-curl -L "https://github.com/bazelbuild/buildtools/releases/download/v${buildifier_version}/buildifier-linux-amd64" -o /usr/local/bin/buildifier
-echo "${buildifier_amd64_sha256} /usr/local/bin/buildifier" | sha256sum -c - || exit -1
+BUILDIFIER_VARIANT="amd64"
+SHA256SUM="${buildifier_amd64_sha256}"
+if [ "${ARCHITECTURE}" = "arm64" ]; then
+    BUILDIFIER_VARIANT="arm64"
+    SHA256SUM="${buildifier_arm64_sha256}"
+fi
+curl -L "https://github.com/bazelbuild/buildtools/releases/download/v${buildifier_version}/buildifier-linux-${BUILDIFIER_VARIANT}" -o /usr/local/bin/buildifier
+echo "${SHA256SUM} /usr/local/bin/buildifier" | sha256sum -c - || exit -1
 chmod +x /usr/local/bin/buildifier
 
 # Starlark Language Server, directly from GitHub (apparently no APT repository available)
-curl -L "https://github.com/withered-magic/starpls/releases/download/v${starpls_version}/starpls-linux-amd64" -o /usr/local/bin/starpls
-echo "${starpls_amd64_sha256} /usr/local/bin/starpls" | sha256sum -c - || exit -1
+STARPLS_VARIANT="amd64"
+SHA256SUM="${starpls_amd64_sha256}"
+if [ "${ARCHITECTURE}" = "arm64" ]; then
+    STARPLS_VARIANT="aarch64"
+    SHA256SUM="${starpls_arm64_sha256}"
+fi
+curl -L "https://github.com/withered-magic/starpls/releases/download/v${starpls_version}/starpls-linux-${STARPLS_VARIANT}" -o /usr/local/bin/starpls
+echo "${SHA256SUM} /usr/local/bin/starpls" | sha256sum -c - || exit -1
 chmod +x /usr/local/bin/starpls
 
 # Code completion for C++ code of Bazel projects
 # (see https://github.com/kiron1/bazel-compile-commands)
-# The version is pinned to a specific release, and the SHA256 checksum is provided by the devcontainer-features.json file.
 source /etc/lsb-release
-curl -L "https://github.com/kiron1/bazel-compile-commands/releases/download/v${bazel_compile_commands_version}/bazel-compile-commands_${bazel_compile_commands_version}-${DISTRIB_CODENAME}_amd64.deb" -o /tmp/bazel-compile-commands.deb
+curl -L "https://github.com/kiron1/bazel-compile-commands/releases/download/v${bazel_compile_commands_version}/bazel-compile-commands_${bazel_compile_commands_version}-${DISTRIB_CODENAME}_${ARCHITECTURE}.deb" -o /tmp/bazel-compile-commands.deb
 # Extract correct sha256 for current DISTRIB_CODENAME and check
-echo "${bazel_compile_commands_amd64_sha256} /tmp/bazel-compile-commands.deb" | sha256sum -c - || exit -1
+SHA256SUM="${bazel_compile_commands_amd64_sha256}"
+if [ "${ARCHITECTURE}" = "arm64" ]; then
+    SHA256SUM="${bazel_compile_commands_arm64_sha256}"
+fi
+echo "${SHA256SUM} /tmp/bazel-compile-commands.deb" | sha256sum -c - || exit -1
 apt-get install -y --no-install-recommends --fix-broken /tmp/bazel-compile-commands.deb
 rm /tmp/bazel-compile-commands.deb
 

src/s-core-devcontainer/.devcontainer/s-core-local/install_matching_bazel_version.sh

@@ -1,6 +1,10 @@
 #!/usr/bin/env bash
 set -eo pipefail
 
-if [ -f .bazelversion ] && [ "$(cat .bazelversion)" != "$(dpkg --list | grep 'ii  bazel   ' | awk '{print $3}')" ]; then
-    sudo apt-get update && sudo apt-get install -y --allow-downgrades bazel=$(cat .bazelversion)
+if [ -f .bazelversion ] && [ "$(cat .bazelversion)" != "$(bazel version | grep 'Build label:' | awk '{print $3}')" ]; then
+    # Pre-install the matching Bazel version, setup the bash command completion
+    USE_BAZEL_VERSION=$(cat .bazelversion)
+    bazel help completion bash > /tmp/bazel-complete.bash
+    sudo mv /tmp/bazel-complete.bash /etc/bash_completion.d/bazel-complete.bash
+    sudo sed -i '/^USE_BAZEL_VERSION=/c\USE_BAZEL_VERSION=${USE_BAZEL_VERSION}' /etc/profile.d/bazel.sh || true
 fi

src/s-core-devcontainer/.devcontainer/s-core-local/tests/test_default.sh

@@ -13,7 +13,8 @@ check "validate graphviz has the correct version" bash -c "dpkg -s graphviz | gr
 # Other build-related tools
 check "validate protoc is working and has the correct version" bash -c "protoc --version | grep 'libprotoc ${protobuf_compiler_version}'"
 
-# Bazel and related tools
+# Bazel-related tools
+check "validate bazelisk is working and has the correct version" bash -c "bazelisk version | grep '${bazelisk_version}'"
 check "validate bazel is working and has the correct version" bash -c "bazel version | grep '${bazel_version}'"
 check "validate buildifier is working and has the correct version" bash -c "buildifier --version | grep '${buildifier_version}'"
 check "validate starpls is working and has the correct version" bash -c "starpls version | grep '${starpls_version}'"

src/s-core-devcontainer/.devcontainer/s-core-local/versions.sh

@@ -1,8 +1,16 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-curl -L "https://github.com/mikefarah/yq/releases/download/v4.47.1/yq_linux_amd64" -o /tmp/yq
-echo "0fb28c6680193c41b364193d0c0fc4a03177aecde51cfc04d506b1517158c2fb /tmp/yq" | sha256sum -c - || exit -1
+ARCHITECTURE=$(dpkg --print-architecture)
+VERSION="v4.47.2"
+
+SHA256_FIELD="1bb99e1019e23de33c7e6afc23e93dad72aad6cf2cb03c797f068ea79814ddb0" # Default to amd64
+if [ "${ARCHITECTURE}" = "arm64" ]; then
+  SHA256_FIELD="05df1f6aed334f223bb3e6a967db259f7185e33650c3b6447625e16fea0ed31f"
+fi
+
+curl -L "https://github.com/mikefarah/yq/releases/download/${VERSION}/yq_linux_${ARCHITECTURE}" -o /tmp/yq
+echo "${SHA256_FIELD} /tmp/yq" | sha256sum -c - || exit -1
 chmod +x /tmp/yq
 
 # Read tool versions and metadata into environment variables

src/s-core-devcontainer/.devcontainer/s-core-local/versions.yaml

@@ -1,6 +1,3 @@
-bazel:
-  version: 8.3.0
-
 graphviz:
   version: 2.42.2
 
@@ -13,13 +10,34 @@ qemu_system_arm:
 sshpass:
   version: 1.09
 
+bazel:
+  # https://github.com/bazelbuild/bazel/releases -- latest version as of 2025-09-24
+  version: 8.4.1
+  # no need to define sha256 here, as bazel is installed via bazelisk
+
 buildifier:
   version: 8.2.1
   amd64:
     # The following sha256sum is for the binary buildifier-linux-amd64
     # from the GitHub release page of buildtools
     # It is generated by running 'sha256sum buildifier-linux-amd64'
     sha256: 6ceb7b0ab7cf66fceccc56a027d21d9cc557a7f34af37d2101edb56b92fcfa1a
+  arm64:
+    # The following sha256sum is for the binary buildifier-linux-arm64
+    # from the GitHub release page of buildtools
+    # It is generated by running 'sha256sum buildifier-linux-arm64'
+    sha256: 3baa1cf7eb41d51f462fdd1fff3a6a4d81d757275d05b2dd5f48671284e9a1a5
+
+bazelisk:
+  version: 1.27.0
+  amd64:
+    # The following sha256sums are for the deb package bazelisk_<version>_amd64.deb
+    # It is generated by running 'sha256sum bazelisk_<version>_amd64.deb'
+    sha256: d8b00ea975c823e15263c80200ac42979e17368547fbff4ab177af035badfa83
+  arm64:
+    # The following sha256sums are for the deb package bazelisk_<version>_arm64.deb
+    # It is generated by running 'sha256sum bazelisk_<version>_arm64.deb'
+    sha256: 173c5b367b485a30ce58c1d0d560b39d257a2d7a3c859c45d7d05eb61605a2a1
 
 starpls:
   version: 0.1.22
@@ -28,10 +46,19 @@ starpls:
     # from the GitHub release page of starpls
     # It is generated by running 'sha256sum starpls-linux-amd64'
     sha256: 7c661cdde0d1c026665086d07523d825671e29056276681616bb32d0273c5eab
+  arm64:
+    # The following sha256sum is for the binary starpls-linux-arm64
+    # from the GitHub release page of starpls
+    # It is generated by running 'sha256sum starpls-linux-arm64'
+    sha256: 55877ec4c3ff03e1d90d59c76f69a3a144b6c29688747c8ac4d77993e2eef1ad
 
 bazel_compile_commands:
-  version: 0.17.2
+  version: 0.18.0
   amd64:
     # The following sha256sums are for the deb package bazel-compile-commands_<version>-noble_amd64.deb
     # It is generated by running 'sha256sum bazel-compile-commands_<version>-noble_amd64.deb'
-    sha256: 97239b316df58fd3370a8aa6350790ececd5e4a1de30efb42d45cb1c300a179a
+    sha256: 6735ea846241497094719792ad3d4f67b1d3123048693d34fcdf7190f8c2da4e
+  arm64:
+    # The following sha256sums are for the deb package bazel-compile-commands_<version>-noble_arm64.deb
+    # It is generated by running 'sha256sum bazel-compile-commands_<version>-noble_arm64.deb'
+    sha256: d73998efa01cbd501b82ad6266642464b78ecd9fc6224a60c9cb558182d52d88