git – Dockerfile版本控制的最佳实践

> git commit和branch
>它是否“脏”意味着在src代码上本地更改来自git中的内容
> CI版本号(公开可见)
>构建图像的人(不是最后一次检查git的人)

我们还使用提交编号标记图像.

这是我们的一项服务的代码.我们的CI使用Buildkite,图像注册表使用Quay.io.

build-image.sh

echo '===> Building docker image...'

GIT_BRANCH=$(git name-rev --name-only HEAD | sed "s/~.*//")
GIT_COMMIT=$(git rev-parse HEAD)
GIT_COMMIT_SHORT=$(echo $GIT_COMMIT | head -c 8)
GIT_DIRTY='false'
BUILD_CREATOR=$(git config user.email)
BUILD_numbER="${Buildkite_BUILD_numbER-0}"
# Whether the repo has uncommitted changes
if [[ $(git status -s) ]]; then
    GIT_DIRTY='true'
fi

docker build \
  -q \
  -t quay.io/myco/servicename:latest \
  -t quay.io/myco/servicename:"$GIT_COMMIT_SHORT" \
  --build-arg GIT_BRANCH="$GIT_BRANCH" \
  --build-arg GIT_COMMIT="$GIT_COMMIT" \
  --build-arg GIT_DIRTY="$GIT_DIRTY" \
  --build-arg BUILD_CREATOR="$BUILD_CREATOR" \
  --build-arg BUILD_numbER="$BUILD_numbER" \
  .

echo "Done"
echo "Push to quay using:"
echo "  docker push quay.io/myco/servicename:latest"
echo "  docker push quay.io/myco/servicename:$GIT_COMMIT_SHORT"

Dockerfile

FROM ...

ARG GIT_COMMIT
ARG GIT_BRANCH=master
ARG GIT_DIRTY=undefined
ARG BUILD_CREATOR
ARG BUILD_numbER

LABEL branch=$GIT_BRANCH \
    commit=$GIT_COMMIT \
    dirty=$GIT_DIRTY \
    build-creator=$BUILD_CREATOR \
    build-number=$BUILD_numbER

... etc

然后,您可以制作检查图像版本的脚本.例如：

docker inspect --format "{{.ContainerConfig.Labels.commit}}" imagEID