Safer curl invocation in CI documentation for pipeline triggers

Problem to solve

The CI documentation — both global (e.g. https://docs.gitlab.com/ee/ci/triggers/) and in the CI/CD settings page (/-/settings/ci_cd) — suggests using curl to trigger CI pipelines using curl like this:

trigger_build:
  stage: deploy
  script:
    - "curl -X POST -F token=TOKEN -F ref=REF_NAME https://gitlab.example.org/api/v4/projects/1/trigger/pipeline"

Proposal

• Adding --fail will ensure that curl exits with an error code when the trigger fails
• Adding --silent will avoid some log noise showing the progress timing & performance of the HTTP request

Who can address the issue

Other links/references