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authorJason Lenny <jason@gitlab.com>2019-08-12 10:33:39 +0000
committerAchilleas Pipinellis <axil@gitlab.com>2019-08-12 10:33:39 +0000
commit926b2d120375a1cf937bd4d5b4f285b780565366 (patch)
tree5477012d8a98849085e58844314f25eef7e0fbbd
parent95075fee788495c76bad9b8b207111b26f12e216 (diff)
downloadgitlab-ce-926b2d120375a1cf937bd4d5b4f285b780565366.tar.gz
Merge deploy keys example to deploy keys API docs
No reason to keep them separate.
-rw-r--r--doc/ci/jenkins/index.md28
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+++ b/doc/ci/jenkins/index.md
@@ -30,6 +30,34 @@ There are some high level differences between the products worth mentioning:
- GitLab comes with a [container registry](../../user/project/container_registry.md), and we recommend using
container images to set up your build environment.
+## Groovy vs. YAML
+
+Jenkins Pipelines are based on [Groovy](https://groovy-lang.org/), so the pipeline specification is written as code.
+GitLab works a bit differently, we use the more highly structured [YAML](https://yaml.org/) format, which
+places scripting elements inside of `script:` blocks separate from the pipeline specification itself.
+
+This is a strength of GitLab, in that it helps keep the learning curve much simpler to get up and running
+and avoids some of the problem of unconstrained complexity which can make your Jenkinsfiles hard to understand
+and manage.
+
+That said, we do of course still value DRY (don't repeat yourself) principles and want to ensure that
+behaviors of your jobs can be codified once and applied as needed. You can use the `extends:` syntax to
+[templatize your jobs](../yaml/README.md#extends), and `include:` can be used to [bring in entire sets of behaviors](../yaml/README.md#include)
+to pipelines in different projects.
+
+```yaml
+.in-docker:
+ tags:
+ - docker
+ image: alpine
+
+rspec:
+ extends:
+ - .in-docker
+ script:
+ - rake rspec
+```
+
## Artifact publishing
Artifacts may work a bit differently than you've used them with Jenkins. In GitLab, any job can define