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action.yml
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/
action.yml
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# SPDX-FileCopyrightText: Andrei Gherzan <andrei.gherzan@huawei.com>
#
# SPDX-License-Identifier: MIT
name: "Build a docker image"
inputs:
docker_image:
required: true
description: "The name of the docker image"
id:
required: true
description: "Namespace for the image"
runs:
using: "composite"
steps:
- name: Build the ${{ inputs.docker_image }} docker image
shell: bash
# We run this unconditionally even if the change doesn't touch the
# relevant docker files because there is a chance that another PR (or
# something else) rebuilt the local image. For example if the first
# version of the PR included change for the relevant docker image but a
# subsequent push to the PR branch dropped them. In this way we rebuild
# the image to avoid using the changes from the previous push.
run: |
cd .github/workflows/docker-images/
# We build a temporary image namespaced by the PR number so we can
# handle multiple runners on the same host using the same docker
# storage.
tries=3
n=1
until [ "$n" -gt "$tries" ]; do
echo "Building the docker image ${{ inputs.docker_image }}-${{ inputs.id }}... try $n..."
if docker build . -f "${{ inputs.docker_image }}/Dockerfile" -t "${{ inputs.docker_image }}-${{ inputs.id }}"; then
# This can fail if a dangling images cleaning job runs in
# parallel. So we try this a couple of times to minimize
# conflict. This is because while building, docker creates a
# untagged image first (dangling) before tagging it at the end.
# If between these two operations a dangling cleanup happens,
# build fails.
break
fi
n=$((n+1))
done
[ "$n" -lt "$tries" ]
echo "Temporary image built in ${{ inputs.docker_image }}."