Comments only, no behaviour changed. Each main.cf/master.cf parameter the
build sets, the wrapper's and the reload hook's reliance on Postfix 3.7.11
(postfix-script, master.5, postconf.5, cleanup_init.c, smtpd_peer.c,
README_FILES), supervisor 4.2.5 (process.py, options.py, events.rst),
logrotate 3.21.0, OpenDKIM's config, Cyrus SASL's sasldb, rspamd 3.11.1
(milter_headers.lua, multimap, the map watcher), Docker Compose, CoreDNS
and certbot now say where that is written. Measurements already there stay
measurements ("date not recorded" where none was); hand-composed fixtures
say so.
Contradictions left for their own commits: C-P31 cleanup's size limit,
C-P42 master outside supervisor's signal, C-V5/V6 startsecs, C-V10,
C-S3/Q3 sasldb written in place, C-Q4/A1 certbot's symlinks, C-R7 rspamd
skips local clients but the signature routine does not, C-P8, C-R4, C-R12,
C-M7, C-E2, C-K8/K9, C-D1.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
63 lines
2.6 KiB
YAML
63 lines
2.6 KiB
YAML
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# Alternative reverse-proxy: nginx. PEM files land on the host exactly like the
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# Apache+certbot scenario — nginx and certbot are close cousins here, both
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# writing/reading plain PEM under /etc/letsencrypt.
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#
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# This is a FRAGMENT, not a full replacement for ../docker-compose.yml: it
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# adds an nginx + certbot pair and removes the panel's host port publish (nginx
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# takes over 80/443 and proxies to the panel over the compose network
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# instead). Merge it with the base file — run this from the deploy/ directory
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# (Compose resolves every relative path in both files against the directory of
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# the FIRST -f file, i.e. deploy/, which is why paths below are ./nginx/... -
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# docs.docker.com/compose/how-tos/multiple-compose-files/merge/: "Paths are
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# evaluated relative to the base file"):
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#
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# docker compose -f docker-compose.yml -f nginx/docker-compose.nginx.yml up -d
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#
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# First-run certificate issuance (webroot method, before nginx has a cert to
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# serve — run once):
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# docker compose -f docker-compose.yml -f nginx/docker-compose.nginx.yml \
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# run --rm certbot certonly --webroot -w /var/www/certbot \
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# -d mail.example.com --email you@example.com --agree-tos --no-eff-email
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services:
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selfpost:
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ports: !override
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- "465:465"
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- "587:587"
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- "25:25"
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# No host publish for 8080 here: nginx reaches it over the compose
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# network at selfpost:8080 instead (see nginx.conf.example).
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volumes: !override
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- ./data:/data
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- .:/selfpost-deploy:ro
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# Same host directory certbot below writes into — plain bind mount, no
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# named volume, so the PEM files are as directly inspectable as in the
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# Apache scenario.
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- ./nginx/certbot-etc/live/mail.example.com:/etc/postfix/tls:ro
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nginx:
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image: nginx:1.27
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restart: unless-stopped
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depends_on:
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- selfpost
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ports:
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- "80:80"
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- "443:443"
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volumes:
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- ./nginx/nginx.conf.example:/etc/nginx/conf.d/selfpost.conf:ro
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- ./nginx/certbot-etc:/etc/letsencrypt:ro
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- ./nginx/certbot-www:/var/www/certbot:ro
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certbot:
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image: certbot/certbot:latest
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volumes:
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- ./nginx/certbot-etc:/etc/letsencrypt
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- ./nginx/certbot-www:/var/www/certbot
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# Renewal twice a day is certbot's own recommended cadence; it no-ops
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# until a certificate is within its renewal window.
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# (eff-certbot.readthedocs.io, User Guide, "Automated Renewals": the
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# sample cron runs "certbot renew" at 0 and 12 h; renew acts only on a
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# certificate near expiry.)
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entrypoint: sh -c 'trap exit TERM; while :; do certbot renew; sleep 12h & wait $${!}; done'
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