feat(ci): add reusable multi-arch build + fleet deploy workflow

This commit is contained in:
2026-02-10 11:37:32 +07:00
parent bbd0dcfddd
commit 479a86de21

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@@ -0,0 +1,269 @@
name: Docker Build (Native Multi-Arch) + Deploy Fleet (Compose)
on:
workflow_call:
inputs:
control_runner:
description: Runner label used for metadata + manifest jobs (must have docker/buildx).
type: string
default: devsg-atlantic
docker_registry:
description: Registry host (docker.io, ghcr.io, registry.example.com)
type: string
default: docker.io
docker_namespace:
description: Docker namespace / org / username
type: string
required: true
image_repo:
description: Docker repository name under namespace
type: string
required: true
context:
type: string
default: .
dockerfile:
type: string
default: Dockerfile
tag:
description: Optional tag to publish (default: sha-<shortsha>)
type: string
default: ""
build_matrix_json:
description: JSON array of { runner, platform } entries
type: string
required: true
deploy_runners_json:
description: JSON array of runner labels
type: string
required: true
compose_workdir:
type: string
default: .
compose_args:
type: string
default: up -d --pull always --remove-orphans
secrets:
DOCKER_HUB_USERNAME: { required: true }
DOCKER_HUB_ACCESS_TOKEN: { required: true }
outputs:
image_repo:
value: ${{ jobs.meta.outputs.image_repo }}
image_tag:
value: ${{ jobs.meta.outputs.image_tag }}
image_ref:
value: ${{ jobs.manifest.outputs.image_ref }}
concurrency:
group: ${{ github.repository }}-${{ github.ref_name }}
cancel-in-progress: true
jobs:
meta:
name: Compute Image Metadata
runs-on: ${{ inputs.control_runner }}
outputs:
image_repo: ${{ steps.meta.outputs.image_repo }}
image_tag: ${{ steps.meta.outputs.image_tag }}
image: ${{ steps.meta.outputs.image }}
branch_tag: ${{ steps.meta.outputs.branch_tag }}
steps:
- name: Compute tags
id: meta
shell: bash
run: |
set -euo pipefail
IMAGE="${{ inputs.docker_registry }}/${{ inputs.docker_namespace }}/${{ inputs.image_repo }}"
SHORT_SHA="$(echo "${{ github.sha }}" | cut -c1-12)"
TAG="${{ inputs.tag }}"
if [[ -z "${TAG}" ]]; then
TAG="sha-${SHORT_SHA}"
fi
# Branch names with '/' are not valid docker tags.
BRANCH_TAG="${{ github.ref_name }}"
BRANCH_TAG="${BRANCH_TAG//\//-}"
echo "image=${IMAGE}" >> "${GITHUB_OUTPUT}"
echo "image_repo=${IMAGE}" >> "${GITHUB_OUTPUT}"
echo "image_tag=${TAG}" >> "${GITHUB_OUTPUT}"
echo "branch_tag=${BRANCH_TAG}" >> "${GITHUB_OUTPUT}"
build:
name: Build + Push (${{ matrix.platform }})
needs: meta
strategy:
fail-fast: false
matrix:
include: ${{ fromJSON(inputs.build_matrix_json) }}
runs-on: ${{ matrix.runner }}
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 1
- uses: docker/setup-buildx-action@v3
- name: Login Registry (push)
uses: docker/login-action@v3
with:
registry: ${{ inputs.docker_registry }}
username: ${{ secrets.DOCKER_HUB_USERNAME }}
password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
- name: Compute arch tag + cache key
id: tags
shell: bash
run: |
set -euo pipefail
arch="${{ matrix.platform }}"
arch="${arch##*/}"
echo "arch=${arch}" >> "${GITHUB_OUTPUT}"
echo "arch_tag=${{ needs.meta.outputs.image_tag }}-${arch}" >> "${GITHUB_OUTPUT}"
echo "cache_tag=buildcache-${arch}" >> "${GITHUB_OUTPUT}"
- name: Build + Push (single platform)
uses: docker/build-push-action@v6
with:
context: ${{ inputs.context }}
file: ${{ inputs.dockerfile }}
platforms: ${{ matrix.platform }}
push: true
tags: |
${{ needs.meta.outputs.image }}:${{ steps.tags.outputs.arch_tag }}
cache-from: type=registry,ref=${{ needs.meta.outputs.image }}:${{ steps.tags.outputs.cache_tag }}
cache-to: type=registry,ref=${{ needs.meta.outputs.image }}:${{ steps.tags.outputs.cache_tag }},mode=max
manifest:
name: Create Multi-Arch Manifest
needs: [meta, build]
runs-on: ${{ inputs.control_runner }}
outputs:
image_ref: ${{ steps.out.outputs.image_ref }}
steps:
- uses: docker/setup-buildx-action@v3
- name: Login Registry (manifest)
uses: docker/login-action@v3
with:
registry: ${{ inputs.docker_registry }}
username: ${{ secrets.DOCKER_HUB_USERNAME }}
password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
- name: Create manifest tags (sha/branch/latest)
shell: bash
env:
BUILD_MATRIX_JSON: ${{ inputs.build_matrix_json }}
run: |
set -euo pipefail
IMAGE="${{ needs.meta.outputs.image }}"
SHA_TAG="${{ needs.meta.outputs.image_tag }}"
BRANCH_TAG="${{ needs.meta.outputs.branch_tag }}"
# Derive source tags from build_matrix_json using Node (available in Actions runners).
# Each source is "${IMAGE}:${SHA_TAG}-<arch>" where <arch> from platform suffix.
mapfile -t sources < <(node -e '
const m = JSON.parse(process.env.BUILD_MATRIX_JSON);
for (const it of m) {
const arch = String(it.platform || "").split("/").pop();
if (!arch) process.exit(2);
console.log(`${process.env.IMAGE}:${process.env.SHA_TAG}-${arch}`);
}
' IMAGE="${IMAGE}" SHA_TAG="${SHA_TAG}")
if [[ "${#sources[@]}" -eq 0 ]]; then
echo "No build sources resolved from build_matrix_json" >&2
exit 1
fi
docker buildx imagetools create \
-t "${IMAGE}:${SHA_TAG}" \
-t "${IMAGE}:${BRANCH_TAG}" \
-t "${IMAGE}:latest" \
"${sources[@]}"
- name: Resolve immutable digest (image_ref)
id: out
shell: bash
run: |
set -euo pipefail
IMAGE="${{ needs.meta.outputs.image }}"
SHA_TAG="${{ needs.meta.outputs.image_tag }}"
DIGEST="$(
docker buildx imagetools inspect "${IMAGE}:${SHA_TAG}" \
| awk -F'Digest:[[:space:]]*' '/^Digest:/ { print $2; exit }' \
| tr -d '[:space:]'
)"
if [[ -z "${DIGEST}" ]]; then
echo "Failed to resolve digest for ${IMAGE}:${SHA_TAG}" >&2
docker buildx imagetools inspect "${IMAGE}:${SHA_TAG}" || true
exit 1
fi
echo "image_ref=${IMAGE}@${DIGEST}" >> "${GITHUB_OUTPUT}"
deploy:
name: Deploy Fleet
needs: manifest
strategy:
fail-fast: false
matrix:
runner: ${{ fromJSON(inputs.deploy_runners_json) }}
runs-on: ${{ matrix.runner }}
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 1
- name: Login Registry (pull)
uses: docker/login-action@v3
with:
registry: ${{ inputs.docker_registry }}
username: ${{ secrets.DOCKER_HUB_USERNAME }}
password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
- name: Show deploy image
if: runner.os != 'Windows'
shell: bash
run: |
echo "Deploying: ${{ needs.manifest.outputs.image_ref }}"
- name: Show deploy image (Windows)
if: runner.os == 'Windows'
shell: pwsh
run: |
Write-Output "Deploying: ${{ needs.manifest.outputs.image_ref }}"
- name: Compose Up (Unix)
if: runner.os != 'Windows'
shell: bash
working-directory: ${{ inputs.compose_workdir }}
env:
DOCKER_IMAGE: ${{ needs.manifest.outputs.image_ref }}
run: |
set -euo pipefail
docker compose ${{ inputs.compose_args }}
- name: Compose Up (Windows)
if: runner.os == 'Windows'
shell: pwsh
working-directory: ${{ inputs.compose_workdir }}
env:
DOCKER_IMAGE: ${{ needs.manifest.outputs.image_ref }}
run: |
docker compose ${{ inputs.compose_args }}