# kaniko-action

Build and optionally push Docker images in Kubernetes using [Kaniko](https://github.com/GoogleContainerTools/kaniko) 
without access to `docker.sock`.

This action allows you to build container images using Kaniko in Forgejo workflows. You can also optionally 
push the built images to a registry.

Note: Kaniko requires a privileged container.

### Example Workflow

Here's an example of how to use this action in your workflow:

```yaml
name: Build and Push Docker Image

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: flakes-action
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Build and push
        uses: https://code.252.no/tommy/kaniko-action@latest
        with:
          cache: false
          context: /workspace/${{ github.repository }}
          credentials: |
            code.252.no=${{ github.repository_owner }}:${{ secrets.REGISTRY_TOKEN }}
          destinations: "code.252.no/tommy/mbpfan:${{ steps.meta.outputs.tags }}"
          push: 'true'
```

In this example, the action builds the Docker image defined in Dockerfile located at the root of the repository, and pushes it to 
`myregistry.com/myimage:latest`.

## Inputs

**cache:** (optional) Set this flag to true to enable caching with Kaniko. Defaults to `false`.

**cache_repo:** (required if cache is true) Repository to use for cache.

**cache_ttl:** (optional) Cache timeout in hours. Defaults to Kaniko default.

**context:** (optional) Path to the build context. Defaults to the `workspace`.

**credentials:** (optional) Whitespace separated list of authentication credentials in the format `registry_server=user:password`.

**destinations:** (required if push is true) Destinations to push images to, whitespace separated.

**docker_file:** (optional) Path to the Dockerfile. Defaults to Dockerfile. It must be in the context.

**push:** (optional) Push an image to the registry. Defaults to `true`.

**version:** (optional) Version of the software, to be added as `org.opencontainers.image.version` label.