DEVOPS

Sync Trello Release Cards to GitLab Milestones with Auto-Changelog

When a Trello card moves into a release list, this finds or creates the matching GitLab milestone, attaches the card's linked merge requests, and appends a changelog entry.

CategoryDevOps
Enginesim
Difficultyintermediate
Triggerevent
Steps6
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerTrello card moves into a "Ready for ..." release listTrelloTrello
  • LogicParse release version from list name and card labels
  • LogicMilestone exists in GitLab?GitLabGitLab
  • ActionCreate GitLab milestone with due date if missingGitLabGitLab
  • ActionLink merge requests referenced in card bodyGitLabGitLab
  • OutputAppend changelog line to milestone descriptionGitLabGitLab

What it does

Watches a Trello release-train board and reacts the moment a card enters a release-staging list (for example "Ready for v2.4"). It reads the card's release label, resolves the matching GitLab milestone (creating it if absent), associates the merge requests referenced in the card description, and appends a structured changelog line to the milestone description.

When to use it

For teams that plan releases visually on Trello but ship through GitLab. Use it when the board is the source of truth for what goes in a release and you are tired of hand-copying card titles into milestone notes and CHANGELOG files.

How it works

  1. 1A Trello card moving onto a list whose name starts with "Ready for" fires the trigger.
  2. 2The release version is parsed from the list name and card labels.
  3. 3A logic step checks whether a GitLab milestone with that title already exists.
  4. 4If not, the milestone is created with a due date drawn from the card.
  5. 5Each merge-request URL in the card body is linked to the milestone.
  6. 6A changelog entry (`- {card title} ({MR refs})`) is appended to the milestone description as the durable output.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect TrelloKanban boards for everything.
  2. 2
    Connect GitLabRepos, MRs, pipelines, registry.
  3. 3
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  4. 4
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  5. 5
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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