Support other CI/CD platforms, not just Actions

[tropnikovvl]

Hello!
Judging by what I see in the documentation, at the moment the Digger only works with Github Actions.
Is it possible to launch CLI from other CI/CD systems? For example, in TeamCity or Gitlab CI?

In my opinion, the workflow is quite simple:

1. we launch your application with certain settings
2. which in turn (I could be wrong here) launches Terraform\OpenTofu\Terragrunt
3. puts the result in the Github comments.

Considering that CI/CD systems can launch builds themselves based on events (push, PR, etc.), a backend should not be needed for this.

Thanks for your product!

[motatoes]

Hey @tropnikovvl thanks for the issue! Indeed you are right, digger can work without the need for a backend support and it can work on github without backend too, our backend is recommended but optional.

To your question we did get it working on bitbucket and gitlab, we also had a user adding support for gitea, it should be as easy as implementing some interfaces.

The only issue with gitlab and bitbucket is that listening for "comment" event does not work without webhooks and so a backend would be needed however all the other functionality will be working fine and you can acheive a decent flow without a backend. If you have further questions about getting it working you can join the slack channel and drop me a line on #support https://join.slack.com/t/diggertalk/shared_invite/zt-1tocl4w0x-E3RkpPiK7zQkehl8O78g8Q

[ZIJ]

Related to #754
Groundwork laid in #1008

[ZIJ]

Related to #1531

[doodzik]

@ZIJ I'm interested in having Buildkite support. Is there anything that needs to be done other than translating the existing GitHub action into a buildkite job?

[motatoes]

@doodzik its a bit more nuanced that that because we have some refactoring to do to extract some common interfaces to get it working. We just started working on buildkite and GH support today, no time commitments promised but you can join our slack to hear for more updates!