Change PRM runner managers to group runners on GitLab.com

We should change private-runners-manager-X (*-1 and *-2 currently paused) to group runners for gitlab-org and gitlab-com groups, and remove direct assigment from projects to these machines.

For this we need to:

• register new runners:
  • gitlab-org group
    • private-runners-manager-1.gitlab.com
    • private-runners-manager-2.gitlab.com
    • private-runners-manager-3.gitlab.com
    • private-runners-manager-4.gitlab.com
  • gitlab-com group
    • private-runners-manager-1.gitlab.com
    • private-runners-manager-2.gitlab.com
    • private-runners-manager-3.gitlab.com
    • private-runners-manager-4.gitlab.com
• get new API tokens for DO nodes:
  • prm1-prm_com_gitlab_org
  • prm1-prm_com_gitlab_com
  • prm2-prm_com_gitlab_org
  • prm2-prm_com_gitlab_com
• update chef roles and secrets:
  • gitlab-runner-prm role
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • gitlab-runner-prm-do role
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • gitlab-runner-prm-gce role
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • gitlab-runner-prm-gce-us-east1-c role
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • gitlab-runner-prm-gce-us-east1-d role
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • stop chef-client on PRM machines
  • gitlab-runner-prm-do secrets
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • gitlab-runner-prm3 secrets
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • gitlab-runner-prm4 secrets
    • add prm_com_gitlab_org runner entry
    • add prm_com_gitlab_com runner entry
    • remove docker_auto_scale_com runner entry
  • apply changes, merge, run chef-client on PRM machines
• apply configuration on nodes
• disable all directly assigned projects from
  • private-runners-manager-1.gitlab.com
  • private-runners-manager-2.gitlab.com
  • private-runners-manager-3.gitlab.com
  • private-runners-manager-4.gitlab.com
• revoke old DO API tokens:
  • prm1-docker_auto_scale_com
  • prm2-docker_auto_scale_com