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## Docker compose with docker-in-docker
The `compose-forgejo-and-runner.yml` compose file runs a Forgejo
instance and registers a `Forgejo runner`. A docker server is also
launched within a container (using
[dind](https://hub.docker.com/_/docker/tags?name=dind)) and will be
used by the `Forgejo runner` to execute the workflows.
### Running
Create a shared secret with:
```sh
openssl rand -hex 20
```
Replace all occurences of {SHARED_SECRET} in
[compose-forgejo-and-runner.yml](compose-forgejo-and-runner.yml).
> **NOTE:** a token obtained from the Forgejo web interface cannot be used as a shared secret.
Replace {ROOT_PASSWORD} with a secure password in
[compose-forgejo-and-runner.yml](compose-forgejo-and-runner.yml).
```sh
docker-compose -f compose-forgejo-and-runner.yml up
Creating docker-compose_docker-in-docker_1 ... done
Creating docker-compose_forgejo_1 ... done
Creating docker-compose_runner-register_1 ... done
...
docker-in-docker_1 | time="2023-08-24T10:22:15.023338461Z" level=warning msg="WARNING: API is accessible on http://0.0.0.0:2375
...
forgejo_1 | 2023/08/24 10:22:14 ...s/graceful/server.go:75:func1() [D] Starting server on tcp:0.0.0.0:3000 (PID: 19)
...
runner-daemon_1 | time="2023-08-24T10:22:16Z" level=info msg="Starting runner daemon"
```
### Manual testing
To login the Forgejo instance:
* URL: http://0.0.0.0:8080
* user: root
* password: {ROOT_PASSWORD}
`Forgejo Actions` is enabled by default when creating a repository.
## Tests workflow
The `compose-demo-workflow.yml` compose file runs a demo workflow to
verify the `Forgejo runner` can pick up a task from the Forgejo instance
and run it to completion.
A new repository is created in root/test with the following workflow
in `.forgejo/workflows/demo.yml`:
```yaml
on: [push]
jobs:
test:
runs-on: docker
steps:
- run: echo All Good
```
A wait loop expects the status of the check associated with the
commit in Forgejo to show "success" to assert the workflow was run.
### Running
```sh
$ docker-compose -f compose-forgejo-and-runner.yml -f compose-demo-workflow.yml up demo-workflow
...
demo-workflow_1 | To http://forgejo:3000/root/test
demo-workflow_1 | + 5ce134e...261cc79 main -> main (forced update)
demo-workflow_1 | branch 'main' set up to track 'http://root:admin1234@forgejo:3000/root/test/main'.
...
demo-workflow_1 | running
...
```
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