README gets step-by-step instructions for both: secrets generation and the local stack on one side, DNS records, firewall, environment variables, TLS and backups on the other. CLAUDE.md records the decisions that are not visible in the code: why the browser never reaches Strapi, why the content model stays this small, and where the public permissions are granted.
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Blog
Blog platform: a public website built with Nuxt, and a private Strapi CMS where the articles are written. Everything runs behind Caddy via Docker Compose.
Browser → Caddy ─┬─ public domain → Nuxt (website)
└─ cms subdomain → Strapi (CMS) → PostgreSQL
There are no front-end accounts: sign-up is disabled and only administrators write content. An article is a title, a Markdown body, a cover image and a category.
Development
No domain and no TLS needed — the services are published on localhost instead of going through Caddy. Requires Docker.
1. Create the environment file
cp .env.example .env
2. Generate the secrets and paste them into .env. Strapi refuses to start with the
placeholder values.
openssl rand -base64 32 # run once per secret
Fill in POSTGRES_PASSWORD, both values of APP_KEYS, API_TOKEN_SALT,
ADMIN_JWT_SECRET, TRANSFER_TOKEN_SALT, JWT_SECRET and ENCRYPTION_KEY. The domain
and URL variables can stay as they are for local use.
3. Start the stack
docker compose -f docker-compose.yml -f docker-compose.dev.yml up -d --build database cms frontend
The first build takes a few minutes. docker-compose.dev.yml publishes the ports on
127.0.0.1 and leaves Caddy out; it must always be passed explicitly, so it can never be
picked up by accident in production.
4. Create the administrator account at http://localhost:1337/admin. This is the first run, so the form creates the account — pick your own credentials.
5. Write something. In the admin panel: create a Category, then an Article (the body field is Markdown), then press Publish — the website only shows published content.
6. Open the website at http://localhost:3000 — home, /blog, /blog/<slug> and
/category/<slug>.
Useful commands:
docker compose logs -f cms # follow the CMS logs
docker compose -f docker-compose.yml -f docker-compose.dev.yml restart frontend
docker compose down # stop, keep the data
docker compose down -v # stop and WIPE the database and media
To iterate on the code without rebuilding an image every time, run a package directly —
cd frontend && npm run dev, or cd cms && npm run develop. The frontend defaults to
http://localhost:1337 for Strapi, so it works against the containerised CMS as is;
override it with NUXT_STRAPI_URL if needed. Strapi reads its own cms/.env.
Production
1. Point the DNS at the server. Two A records (and AAAA if you have IPv6) on the
public IP of the machine:
| Record | Purpose |
|---|---|
example.com |
the website |
cms.example.com |
the Strapi admin panel |
Wait for the records to resolve before starting the stack — Caddy requests the certificates on the first boot and a failed challenge means a retry delay.
2. Open the firewall for ports 80 and 443 only. Port 80 is required: Caddy uses
it for the ACME challenge and to redirect to HTTPS. PostgreSQL, Strapi and Nuxt are only
reachable inside the Docker network — do not publish their ports.
3. Configure the environment. Copy .env.example to .env on the server and set:
| Variable | Value |
|---|---|
PUBLIC_DOMAIN |
example.com |
CMS_DOMAIN |
cms.example.com |
ACME_EMAIL |
a mailbox you read — Let's Encrypt sends expiry warnings there |
PUBLIC_SITE_URL |
https://example.com |
PUBLIC_STRAPI_URL |
https://cms.example.com |
STRAPI_URL |
leave it as http://cms:1337 — internal address, never public |
Then generate fresh secrets for that machine (openssl rand -base64 32), different
from the development ones. Keep .env out of version control; it is already ignored.
Changing
APP_KEYS,ADMIN_JWT_SECRETorJWT_SECRETlater logs everyone out. ChangingENCRYPTION_KEYafter content exists makes already-encrypted values unreadable. Set them once, then back up the file somewhere safe.
4. Start everything
docker compose up -d --build
This time Caddy is included: it serves the website on PUBLIC_DOMAIN, the CMS on
CMS_DOMAIN, obtains and renews the TLS certificates on its own, and adds HSTS and the
other security headers.
5. Create the administrator account at https://cms.example.com/admin, immediately,
before anyone else finds the URL — the first visitor to that form is the one who gets the
account. Then publish as in development.
6. Back up what is not in git: the postgres-data volume (all content) and the
cms-uploads volume (all images). Nothing else on the server holds state.
docker compose exec -T database pg_dump -U "$POSTGRES_USER" "$POSTGRES_DB" > backup.sql
docker run --rm -v blog_cms-uploads:/data -v "$PWD:/out" alpine tar czf /out/uploads.tar.gz -C /data .
Updating a running site: pull the new code, then docker compose up -d --build.
Strapi applies its own schema changes at startup; take a backup first.
Architecture, conventions and constraints are documented in CLAUDE.md.
License
Proprietary — Copyright (c) 2026 Davide Grilli. All rights reserved. See LICENSE.