-
Notifications
You must be signed in to change notification settings - Fork 31
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #8 from AkihiroSuda/dev
README.md: update
- Loading branch information
Showing
1 changed file
with
56 additions
and
28 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -1,61 +1,85 @@ | ||
# The BuildKit Cache Dance | ||
# The BuildKit Cache Dance: save `RUN --mount=type=cache` caches on GitHub Actions | ||
|
||
Workaround buildkit/buildx's lack of integrated caching solution. | ||
The BuildKit Cache Dance allows saving [`RUN --mount=type=cache`](https://docs.docker.com/build/guide/mounts/#add-a-cache-mount) | ||
caches on GitHub Actions. | ||
|
||
Forked from [`overmindtech/buildkit-cache-dance`](https://github.com/overmindtech/buildkit-cache-dance/tree/306d31a77191f643c0c4a95083f36c6ddccb4a16). | ||
Use cases: | ||
- apt-get (`/var/cache/apt`, `/var/lib/apt`) | ||
- Go (`/root/.cache/go-build`) | ||
- etc. | ||
|
||
This [`reproducible-containers/buildkit-cache-dance`](https://github.com/reproducible-containers/buildkit-cache-dance) action was forked from | ||
[`overmindtech/buildkit-cache-dance`](https://github.com/overmindtech/buildkit-cache-dance/tree/306d31a77191f643c0c4a95083f36c6ddccb4a16) | ||
(archived on September 2023). | ||
This action be used for "non-reproducible" containers too. | ||
|
||
## Examples | ||
### apt-get | ||
Dockerfile: | ||
```dockerfile | ||
FROM ubuntu:22.04 | ||
ENV DEBIAN_FRONTEND=noninteractive | ||
RUN \ | ||
--mount=type=cache,target=/var/cache/apt,sharing=locked \ | ||
--mount=type=cache,target=/var/lib/apt,sharing=locked \ | ||
rm -f /etc/apt/apt.conf.d/docker-clean && \ | ||
echo 'Binary::apt::APT::Keep-Downloaded-Packages "true";' >/etc/apt/apt.conf.d/keep-cache && \ | ||
apt-get update && \ | ||
apt-get install -y gcc | ||
``` | ||
|
||
Action: | ||
```yaml | ||
--- | ||
name: Build | ||
on: push | ||
|
||
jobs: | ||
build: | ||
name: Build | ||
runs-on: ubuntu-latest | ||
runs-on: ubuntu-22.04 | ||
steps: | ||
- name: Checkout | ||
uses: actions/checkout@v4 | ||
- name: Set up Docker Buildx | ||
uses: docker/setup-buildx-action@v2 | ||
- name: Docker meta | ||
- uses: actions/checkout@v4 | ||
- uses: docker/setup-buildx-action@v2 | ||
- uses: docker/metadata-action@v4 | ||
id: meta | ||
uses: docker/metadata-action@v4 | ||
with: | ||
images: YOUR_IMAGE | ||
tags: | | ||
type=ref,event=branch | ||
type=ref,event=pr | ||
type=semver,pattern={{version}} | ||
type=semver,pattern={{major}}.{{minor}} | ||
- name: Go Build Cache for Docker | ||
- name: Cache var-cache-apt | ||
uses: actions/cache@v3 | ||
with: | ||
path: go-build-cache | ||
key: ${{ runner.os }}-go-build-cache-${{ hashFiles('**/go.sum') }} | ||
- name: inject go-build-cache into docker | ||
path: var-cache-apt | ||
key: var-cache-apt-${{ hashFiles('Dockerfile') }} | ||
- name: Cache var-lib-apt | ||
uses: actions/cache@v3 | ||
with: | ||
path: var-lib-apt | ||
key: var-lib-apt-${{ hashFiles('Dockerfile') }} | ||
- name: inject var-cache-apt into docker | ||
uses: reproducible-containers/[email protected] | ||
with: | ||
cache-source: go-build-cache | ||
cache-source: var-cache-apt | ||
cache-target: /var/cache/apt | ||
- name: inject var-lib-apt into docker | ||
uses: reproducible-containers/[email protected] | ||
with: | ||
cache-source: var-lib-apt | ||
cache-target: /var/lib/apt | ||
- name: Build and push | ||
uses: docker/build-push-action@v3 | ||
with: | ||
context: . | ||
cache-from: type=gha | ||
cache-to: type=gha,mode=max | ||
file: build/package/Dockerfile | ||
file: Dockerfile | ||
push: ${{ github.event_name != 'pull_request' }} | ||
tags: ${{ steps.meta.outputs.tags }} | ||
labels: ${{ steps.meta.outputs.labels }} | ||
platforms: linux/amd64,linux/arm64 | ||
``` | ||
Thanks to [Alexander Pravdin](https://github.com/speller) for the basic idea in [this comment](https://github.com/moby/buildkit/issues/1512). | ||
Real-world examples: | ||
- <https://github.com/rootless-containers/slirp4netns/blob/v1.2.2/.github/workflows/release.yaml#L18-L36> | ||
- <https://github.com/containers/fuse-overlayfs/blob/40e0f3c/.github/workflows/release.yaml#L17-L36> | ||
## Releases | ||
### v1 | ||
|
@@ -69,3 +93,7 @@ See the [`releases/v1`](https://github.com/reproducible-containers/buildkit-cach | |
|
||
### v2 | ||
v2 is composed of the single `reproducible-containers/buildkit-cache-dance` action. | ||
|
||
## Acknowledgement | ||
- Thanks to [Alexander Pravdin](https://github.com/speller) for the basic idea in [this comment](https://github.com/moby/buildkit/issues/1512). | ||
- Thanks to the authors of the original [`overmindtech/buildkit-cache-dance`](https://github.com/overmindtech/buildkit-cache-dance). |