mirror of
https://gitea.com/docker/metadata-action.git
synced 2024-11-21 19:49:32 +01:00
Provide outputs as env vars
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
This commit is contained in:
CrazyMax
parent
05d22bf317
commit
6729545cde
5 changed files with 84 additions and 5 deletions
39
.github/workflows/ci.yml
vendored
39
.github/workflows/ci.yml
vendored
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@ -37,6 +37,9 @@ jobs:
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type=ref,event=tag
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type=ref,event=pr
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type=sha
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-
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name: Print envs
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run: env|sort
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tag-schedule:
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runs-on: ubuntu-latest
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@ -224,6 +227,14 @@ jobs:
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echo "version=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.version'] }}"
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echo "revision=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.revision'] }}"
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echo "created=${{ fromJSON(steps.meta.outputs.json).labels['org.opencontainers.image.created'] }}"
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-
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name: JSON build arg
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uses: docker/build-push-action@v3
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with:
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context: ./test
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file: ./test/json.Dockerfile
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build-args: |
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BUILDINFO=${{ steps.meta.outputs.json }}
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docker-push:
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runs-on: ubuntu-latest
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@ -350,3 +361,31 @@ jobs:
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with:
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script: |
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console.log(`${{ steps.meta.outputs.tags }}`);
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output-env:
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runs-on: ubuntu-latest
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steps:
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-
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name: Checkout
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uses: actions/checkout@v3
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-
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name: Docker meta
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id: meta
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uses: ./
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with:
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images: |
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${{ env.DOCKER_IMAGE }}
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ghcr.io/name/app
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labels: |
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maintainer=CrazyMax
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-
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name: Build
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uses: docker/build-push-action@v3
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with:
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context: ./test
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file: ./test/output.Dockerfile
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build-args: |
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DOCKER_METADATA_OUTPUT_VERSION
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DOCKER_METADATA_OUTPUT_TAGS
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DOCKER_METADATA_OUTPUT_LABELS
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DOCKER_METADATA_OUTPUT_JSON
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17
README.md
17
README.md
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@ -297,6 +297,23 @@ Following outputs are available
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| `json` | String | JSON output of tags and labels |
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| `bake-file` | File | [Bake file definition](https://docs.docker.com/build/customize/bake/file-definition/) path |
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Alternatively, each output is also exported as an environment variable:
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* `DOCKER_METADATA_OUTPUT_VERSION`
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* `DOCKER_METADATA_OUTPUT_TAGS`
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* `DOCKER_METADATA_OUTPUT_LABELS`
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* `DOCKER_METADATA_OUTPUT_JSON`
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* `DOCKER_METADATA_OUTPUT_BAKE_FILE`
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So it can be used with our [Docker Build Push action](https://github.com/docker/build-push-action/):
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```yaml
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- uses: docker/build-push-action@v3
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with:
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build-args: |
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DOCKER_METADATA_OUTPUT_JSON
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```
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### environment variables
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| Name | Type | Description |
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15
src/main.ts
15
src/main.ts
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@ -41,7 +41,7 @@ async function run() {
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core.info(version.main || '');
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core.endGroup();
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}
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core.setOutput('version', version.main || '');
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setOutput('version', version.main || '');
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// Docker tags
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const tags: Array<string> = meta.getTags();
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@ -54,7 +54,7 @@ async function run() {
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}
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core.endGroup();
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}
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core.setOutput('tags', tags.join(inputs.sepTags));
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setOutput('tags', tags.join(inputs.sepTags));
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// Docker labels
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const labels: Array<string> = meta.getLabels();
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@ -63,24 +63,29 @@ async function run() {
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core.info(label);
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}
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core.endGroup();
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core.setOutput('labels', labels.join(inputs.sepLabels));
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setOutput('labels', labels.join(inputs.sepLabels));
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// JSON
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const jsonOutput = meta.getJSON();
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core.startGroup(`JSON output`);
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core.info(JSON.stringify(jsonOutput, null, 2));
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core.endGroup();
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core.setOutput('json', jsonOutput);
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setOutput('json', JSON.stringify(jsonOutput));
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// Bake file definition
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const bakeFile: string = meta.getBakeFile();
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core.startGroup(`Bake file definition`);
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core.info(fs.readFileSync(bakeFile, 'utf8'));
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core.endGroup();
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core.setOutput('bake-file', bakeFile);
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setOutput('bake-file', bakeFile);
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} catch (error) {
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core.setFailed(error.message);
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}
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}
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function setOutput(name: string, value: string) {
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core.setOutput(name, value);
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core.exportVariable(`DOCKER_METADATA_OUTPUT_${name.replace(/\W/g, '_').toUpperCase()}`, value);
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}
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run();
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6
test/json.Dockerfile
Normal file
6
test/json.Dockerfile
Normal file
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@ -0,0 +1,6 @@
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# syntax=docker/dockerfile:1
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FROM alpine
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RUN apk add --no-cache coreutils jq
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ARG BUILDINFO
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RUN printenv BUILDINFO
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RUN echo $BUILDINFO | jq
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12
test/output.Dockerfile
Normal file
12
test/output.Dockerfile
Normal file
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@ -0,0 +1,12 @@
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# syntax=docker/dockerfile:1
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FROM alpine
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RUN apk add --no-cache coreutils jq
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ARG DOCKER_METADATA_OUTPUT_VERSION
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ARG DOCKER_METADATA_OUTPUT_TAGS
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ARG DOCKER_METADATA_OUTPUT_LABELS
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ARG DOCKER_METADATA_OUTPUT_JSON
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RUN printenv DOCKER_METADATA_OUTPUT_VERSION
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RUN printenv DOCKER_METADATA_OUTPUT_TAGS
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RUN printenv DOCKER_METADATA_OUTPUT_LABELS
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RUN printenv DOCKER_METADATA_OUTPUT_JSON
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RUN echo $DOCKER_METADATA_OUTPUT_JSON | jq
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