Update CI example docs.
Docs for CI examples are updated as follows:
- Fix a dead link from CI example top to `dpl`
- Specify Django for a Python project, not Rails
- Use the latest Python Docker image as [Heroku supports only Python 3.5.1 (and 2.7.11)](https://devcenter.heroku.com/articles/python-support)
- Show the latest Docker Hub URL links.
See merge request !4082
Documentation fix in CI SSH keys setup
In recent versions of Docker, the `/.dockerinit` file doesn't exist any more when running inside a container. That file is used in the example here to detect whether the runner is running inside Docker or not. Change it to check for the existence of `/.dockerenv`, which does exist in all current versions of Docker.
See merge request !3938
Replace '-n' with '--name' in docker related documentation
`-n` for `docker run` is outdated. We should use `--name` instead. This MR fixes the example in documentation.
Fixes#15174
See merge request !3908
Add notice about GitLab Runner to requirements docs
This is related to #14589, and problems that may stem from running
GitLab Runner on same machine user installed GitLab web app on.
See merge request !3518
CI: Add 'triggers' keyword to 'only' and 'except' lists to allow control over when triggers cause builds to run
Currently, the `only` and `except` keywords in `.gitlab-ci.yml` only accept ref names or the special `branches` and `tags` keywords. However, these are primarily useful when controlling how repository activity affects the creation of builds. In my case, instead of building on every commit, I'd like to use the following logic:
- If the repository is tagged, do a build.
- Any other normal commits should not cause a build.
- If a build is triggered via the API, always create one for the specified ref.
From what I can tell, this isn't possible via the existing YAML syntax. In this MR, I introduce a new keyword `triggers` that goes along with `branches` and `tags`. I can implement the logic above using the following job configuration:
```yaml
only:
- tags
- triggers
```
I updated the tests and documentation to reflect this and everything seems to pass.
See merge request !3230
Achilleas Pipinellis
Takuya Noguchi
Ben Bodenmiller
Rémy Coutable
David de Boer
Jason Roehm
Tomasz Maczukin
Grzegorz Bizon
Kamil Trzcinski
Grzegorz Bizon
Robert Schilling
Jamie Neubert Pedersen
Hyunwoo Jung
Lee
Benjamin Montgomery
Alex Mayer
frodsan
Pat Turner
Mark Pundsack
Jeroen van Baarsen