GitActions - How do I check if the logged in user is part of a team

In a GitActions YAML file how do I check to see if a User is part of a Team in Github ?

I know that the username can be got via ${{ github.actor }}

Note: The requirement is to allow only specific authorized users to be able to run a job within a workflow. (Say we restrict a step to the DBA team members)

Note: I am aware of Environments and the "Require reviewer" option. But this does not quite fit into the requirement.

You can use the get-user-teams-membership action for that. A workflow would look something like this.

name: Check user for team affiliation
on:
  pull_request:
    branches:
      - develop
jobs:
  check-user:
    name: Team affiliation
    runs-on: ubuntu-latest
    steps:
      - name: Check user for team affiliation
        uses: tspascoal/get-user-teams-membership@v2
        id: teamAffiliation
        with:
          GITHUB_TOKEN: ${{ secrets.TOKEN }}
          username: ${{ github.actor }}
          team: your-team-name
      - name: Stop workflow if user is no member
        if: ${{ steps.teamAffiliation.outputs.isTeamMember == 'false' }}
        run: |
          echo "You have no rights to trigger this job."
          exit 1

Note that that action outputs are always strings, so a boolean check is not valid.

You can also try this with the github-script action. Could be a bit more difficult but also gives you more freedom.