This is an original planning guide. It is not a vendor manual, an official standard, or legal advice. Example addresses use documentation ranges. Review every command before you paste it.
What this hour is for
The converter reads a paste and drafts a partial Caddy site from server_name and, when present, proxy_pass or root. It says locations, headers, and TLS paths need a review. It does not reload a server. example.com in the sample is documentation.
Keep the Nginx file. Do not delete it in the same hour. A proxy target has to be a backend you administer. Do not carry a wide allow. One site.
192.0.2.10/24 and example.com are documentation. They stay in the note.
The change you can finish
Apply nothing while you are writing the note. When the lab window opens, it is one change on the host named in the ticket. Read the draft, then the host, then decide.
Rollback is the file, the package version, or the snapshot you saved first. You do not invent a rollback after the only copy is gone.
- Paste a server block you administer.
- Read the Caddy draft.
- Mark locations, headers, and TLS as unreviewed.
- Keep the Nginx file.
- Do not reload Caddy.
- Stop.
Mistakes that outlive the command
Nginx to Caddy Migration Guide goes wrong in a small set of ways. The list is here so the ticket can forbid them before the window.
- The draft pasted onto live Caddy.
- The Nginx file deleted.
- A proxy to a backend you do not run.
- A wide allow carried across.
- example.com left as the live name.
Decisions to write down
One decision for Nginx to Caddy Migration Guide: The Nginx file remains. Unreviewed items are listed. The backend, if any, is yours. No reload was done. And one site.
Checks before you call it done
Confirm this before you call the change done: server_name is written. The Nginx copy is kept. Unreviewed items are listed. No reload was done. And example.com is not a live name you invented. If one of those fails, stop.
# Partial Caddy starter.
# Locations, headers, and TLS need a person.
# Keep the Nginx file.
# Do not reload during the reading.Before you leave the host
Nginx to Caddy Migration Guide ends when the hostname in the prompt matches the hostname in the ticket. If it does not, you are on the wrong host. Stop. A command that succeeded on the wrong host is not progress.
The draft stays a draft until a person has read the names in it. A generator does not log into the host and does not know which disk is empty. You delete a line that names a host, a path, or an account you did not write down.
192.0.2.10/24, gateway 192.0.2.1, 198.51.100.0/24, 203.0.113.0/24, and 2001:db8::/32 are documentation. example.com is a documentation name. They belong in the note. They are not values you leave on a host because a draft included them.
prompt-for-this is a reminder that a secret is missing. It is not a password, a key, or a token you save in the ticket or in git. The real secret stays in the password store.
One change is the window. If two things move and the result is wrong, you will not know which one did it. The next change waits for its own page.
If the same step fails twice, stop for the day. The failure is the result. Adding a forum command beside a half-applied change produces a host nobody can rebuild. Restore the copy you took first.
A second person reads the hostname and the change aloud. If they cannot find them in the ticket, the note is not done. Silence is not agreement. Then leave the host alone.
This page is a planning guide. It is not a vendor manual, not an official standard, and not permission to touch a host you do not administer. You do not disable a firewall, AppArmor, or SELinux to make a check pass.
Tools for this guide
These tools run in the browser on this site. They do not log into your machines.
Related pillar guides
More in this cluster
The pillar for this page, and the next published pages filed with it.