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--- devops:ci [2022-03-22 10:49] – Robbert Hofman
+++ devops:ci [2022-09-02 16:04] (current) – external edit 127.0.0.1
@@ Line 11: / Line 11: @@
 ===== Authorization to clone git repos =====
-Just like a normal git user, the CI pipeline also needs to prove it has the authority to clone a repository.
+Just like a normal git user, the CI pipeline also needs to prove it has the authority to clone a repository. \\
-As we know, there are 2 main ways to do that: over HTTPS (user/password), or over SSH (private/public key).
+As we know, there are 2 main ways to do that: over HTTPS (user/password), or over SSH (private/public key). \\
-In our case, the rosinstall files are defined using SSH (git@someurl), so that is what's used in the CI as well.
+In our case, the rosinstall files are defined using SSH (git@someurl), so that is what's used in the CI as well. \\
 === SSH ===
-Best practice would be to use [[https://docs.gitlab.com/ee/user/project/deploy_keys/index.html|deploy keys]] and put the private key in the [[CI variables|https://docs.gitlab.com/ee/ci/variables/index.html#add-a-cicd-variable-to-a-project]].
+Best practice is to use [[https://docs.gitlab.com/ee/user/project/deploy_keys/index.html|deploy keys]] and put the private key in the [[https://docs.gitlab.com/ee/ci/variables/index.html#add-a-cicd-variable-to-a-project|CI variables]]. This is what we are doing.
 === HTTPS ===
 You can use the environment variable $CI_JOB_TOKEN for free. It's included. You don't have to do anything.
-<code>
+<code yaml>
 some_early_stage:
   script:
@@ Line 26: / Line 26: @@
 </code>
+==== Propagating CI triggers ====
+We want the main pipeline to be triggered if a commit happens in ANY of the repositories that the pipeline depends on. \\
+This can be achieved by putting the following ''.gitlab-ci.yml'' in each of those repos, in the right branch of course (i.e. the branch the pipeline uses).
+<code yaml>
+trigger-main:
+  trigger:
+    project: robotlab/heron/heron-ci
+    branch: main
+    strategy: depend
+</code>
+I learned that here: https://docs.gitlab.com/ee/ci/pipelines/multi_project_pipelines.html