docs: short readme

README.md

@@ -1,8 +1,8 @@
 # caddy
 
-Copier template for a `caddy/` directory: a portable `site.caddy` for the project's `api` and `frontend` services, a standalone Caddy compose file and an example global Caddyfile.
+Copier template for a `caddy/` directory: a portable `site.caddy` for the project's `api` and `frontend`, a standalone compose file and an example Caddyfile.
 
 ```sh
 copier copy --trust -d project_slug=my_thing -d 'routes=["api","frontend"]' <this-repo> <dest>
-copier update -a .copier-answers.caddy.yml
+copier update -a .copier/caddy.yml
 ```

copier.yml

@@ -1,6 +1,6 @@
 _subdirectory: template
 _templates_suffix: .jinja
-_answers_file: .copier-answers.caddy.yml
+_answers_file: .copier/caddy.yml
 _envops:
   keep_trailing_newline: true
 

template/caddy/.env.example.jinja

@@ -1,2 +1,2 @@
-{{ project_slug | upper }}_DOMAIN={{ project_slug | replace('_', '-') }}.localhost
+{{ project_slug | upper | replace('-', '_') }}_DOMAIN={{ project_slug | replace('_', '-') }}.localhost
 CLOUDFLARE_API_TOKEN=

template/caddy/.gitignore

@@ -1,2 +1,2 @@
 .env
-Caddyfile
+/Caddyfile

template/caddy/README.md.jinja

@@ -1,23 +1,5 @@
 {%- set dash = project_slug | replace('_', '-') -%}
+{%- set domain = project_slug | upper | replace('-', '_') ~ '_DOMAIN' -%}
 # caddy
 
-`site.caddy` routes `{{ '{$' }}{{ project_slug | upper }}_DOMAIN}` to the project's services over the external `caddy` docker network. It works standalone and inside a shared Caddy that fronts several projects.
+`site.caddy` routes `{{ '{$' }}{{ domain }}}` to the project over the external `caddy` network. In a shared Caddy, mount this directory as `/etc/caddy/projects.d/{{ dash }}:ro` and set `{{ domain }}`. Keep it portable: domain only from the env, no `tls`, snippets prefixed with `{{ project_slug }}_`.
-
-Standalone:
-
-```sh
-docker network create caddy
-cp Caddyfile.example Caddyfile
-cp .env.example .env
-docker compose up -d
-```
-
-Shared Caddy: mount this directory as `/etc/caddy/projects.d/{{ dash }}:ro`, keep `import /etc/caddy/projects.d/*/site.caddy` in its Caddyfile and put `{{ project_slug | upper }}_DOMAIN` in its environment.
-
-Rules that keep `site.caddy` portable:
-
-- the domain comes only from the environment variable
-- no `tls` block, certificates are configured by the host Caddy (`acme_dns cloudflare {env.CLOUDFLARE_API_TOKEN}` in the global block)
-- snippets are prefixed with the project slug because Caddy snippets are global
-- mount the directory, not the file: a single-file bind mount goes stale when git replaces the inode
-- keep `admin localhost:2019`, `admin off` makes `caddy reload` impossible

template/caddy/site.caddy.jinja

@@ -1,5 +1,5 @@
 {%- set dash = project_slug | replace('_', '-') -%}
-{%- set domain = project_slug | upper ~ '_DOMAIN' -%}
+{%- set domain = project_slug | upper | replace('-', '_') ~ '_DOMAIN' -%}
 {$ {{- domain -}} } {
 	encode zstd gzip
 {% if 'api' in routes and 'frontend' in routes %}