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Service Provisioning Checlist

Purpose

This checklist is to ensure that all aspects of a new service are provisioned properly, completely, and in the correct order to prevent potential failures elsewhere in the system.

Steps

  • Determine any potential impact to any other services; see things to look out for below
    • Is this service going to be running on app-01 or a different host?
    • Is it going to utilize SSO auth?
    • Is it going to need a database? Service files folder in /mnt/data/services on app-01?
    • Is it going to need any other secrets?
    • Does this service need to be monitored?
    • Does this service's data need to be backed up?
    • Exposed to the public internet?
    • Utilizing a mailserver or ntfy to send notifications?
  • Determine the most feasible deployment method
    • Docker container
    • nixOS module (preferred for reproducibility and programmatic configuration)

Check on repology.org to verify if the nixOS module is up to date with upstream before choosing to use the nixOS module

  • If the service uses a database
    • Typically, I create databases whose names are the same as the service name e.g. for forgejo, the database name is forgejo 
    • Create and store database secrets under Bitwarden Secrets Manager, using the following naming convention: webservices.<service name>.db_pass
    • Create a new branch in Projects/ansible from staging using the naming convention databases.<service name>
    • Add an entry under the appropriate database server's host_vars file. Run the appropriate playbook to auto-provision that database
    • If this service needs a folder in the filesystem, create that respective folder under /mnt/data/services and create a symlink to it from /srv such that the symlink's location is /srv/<service name>
    • If this service is being provisioned using Docker
      • Follow Docker service provisioning procedure to create a docker-compose file and appropriate config and .env files
    • If this service is being provisioned using a nixOS module
      • Add the database secrets to the SOPS config. This will be used for both database access and borgmatic backups
      • Add a SOPS secrets config block and pass to the module to prevent the secret being exposed in the store

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