Gitlab-ci How can I trigger a cleanup job only after previous stage succeeded disregarding all other stages status

Question

I need to create a CI that erases the VMs that were created in the previous stage only if the previous stage succeeded. if I use when: on_success - It works only if all stages passed.

stages:

• prep (2 jobs)
• build (5 jobs)
• test (5 jobs)
• cleanup

I want cleanup to work if all 5 test jobs passed even if I have a failure in a job that is in the build stage.

Answer 1

Use needs keyword https://docs.gitlab.com/ee/ci/yaml/#needs

vm:build:
  stage: build
  script: echo "Building vm..."

test_1:
  stage: test
  script: echo "test_1"

test_2:
  stage: test
  script: echo "test_2"

test_3:
  stage: test
  script: echo "test_3"

cleanup:
  stage: cleanup
  needs: ["test_1", "test_2", "test_3"]
  script: echo "clea"