Improve AutoDevops documentation covering default host configuration

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Problem to solve

Due to a max character limit for letsencrypt, long FDQNs cannot be used for certificate allocation. The current workaround for this is to set the CommonName to a short host of the format le-<myip>.nip.io and specify the full hostname as Subject Alternative Name on the cert. This results in 2 hosts being allocated for each ~"auto devops" deployment and should be documented.

Further details

Proposal

Once !17751 (merged) is merged, a section should be added to document the common name conventions for deployment of Auto Devops.

Who can address the issue

devopsconfigure

Other links/references

Related discussions:

  • gitlab-foss#55820 (closed)
  • gitlab-foss#61697 (closed)

Usage:

  • https://gitlab.com/gitlab-org/cluster-integration/auto-deploy-image/blob/50b315642bcdbd9917010c5436f7748b4e0e89e4/src/bin/auto-deploy#L153
Edited Jul 01, 2025 by 🤖 GitLab Bot 🤖
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