nixcfg/doc/onboarding.md

Onboarding / quick start for new administrators

How to welcome a new administrator

Give them access to the secrets repo. See: https://guide.deuxfleurs.fr/operations/pass/

Basically:

• The new administrator generates a GPG key and publishes it on Gitea
• All existing administrators pull their key and sign it
• An existing administrator reencrypt the keystore with this new key and push it
• The new administrator clone the repo and check that they can decrypt the secrets
• Finally, the new administrator must choose a password to operate over SSH with ./passwd prod rick where rick is the target username

How to operate a node (connect to Nomad and Consul)

Edit your ~/.ssh/config file with content such as the following:

# Deuxfleurs prod
Host abricot ananas concombre celeri courgette df-ykl df-ymf df-ymk   
    HostName %h.machine.deuxfleurs.fr
    IdentityFile ~/.ssh/deuxfleurs_ed25519
    User adrien
    LocalForward 14646 127.0.0.1:4646
    LocalForward 8501 127.0.0.1:8501
    LocalForward 1389 bottin.service.prod.consul:389
    LocalForward 5432 psql-proxy.service.prod.consul:5432

# Deuxfleurs staging
Host piranha df-pw5 # et autres
    HostName %h.machine.deuxfleurs.fr
    IdentityFile ~/.ssh/deuxfleurs_ed25519
    User adrien
    LocalForward 14646 127.0.0.1:4646
    LocalForward 8501 127.0.0.1:8501
    LocalForward 1389 bottin.service.prod.consul:389
    LocalForward 5432 psql-proxy.service.prod.consul:5432

Then run the TLS proxy and leave it running:

./tlsproxy prod

SSH to a production machine (e.g. dahlia) and leave it running:

ssh dahlia

Finally you should see be able to access the production Nomad and Consul by browsing:

• Consul: http://localhost:8500
• Nomad: http://localhost:4646