postfix-config.sh copies the mounted certificate and key into /etc/postfix/tls-internal at start (root-owned, key 0600) and Postfix reads the copy; cert-reload only ran `postfix reload` daily, which re-read the stale copy, so a certificate renewed while the container ran expired on 465/587 with the old one. postfix-cert-reload.sh now, every TLS_RELOAD_INTERVAL_SECONDS: compares the mount with the copy (cmp); when they differ and the certificate and key belong together (openssl public keys equal - a renewer writes them one after the other), writes each file beside its target, root-owned with the start's modes, renames it over the target, and reloads Postfix. Nothing changed - no reload. No copy (files missing at start) - the old periodic reload. Never exits non-zero. e2e renewed_certificate_picked_up: writes a new certificate into the stand's mount and waits (30 s) for port 465 to present its serial; compose.override.yml sets TLS_RELOAD_INTERVAL_SECONDS=2. supervisord.conf comment, architecture.md (process table, § Postfix TLS certs, the env knob), guide (after the proxies: picked up within a day). CHANGELOG [Unreleased], audit plan line ticked, roadmap 12/61. Evidence: GOOS=linux go vet in test/e2e clean; the server run of the stage follows before the push. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
105 lines
4.3 KiB
YAML
105 lines
4.3 KiB
YAML
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# Hermetic e2e stand override for ../../deploy/docker-compose.yml (plan C.4).
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#
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# Applied as a second -f on top of the SHIPPED compose file, not a separate
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# test compose — the whole point is to exercise cap_drop/cap_add/
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# no-new-privileges exactly as documented, not a laxer stand-in. Run only via
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# `make e2e`, which also sets --project-directory to a scratch stage
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# directory so the base file's relative ./data and ./certs bind mounts land
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# there instead of next to a real deployment, and -p selfpost-e2e so the
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# containers/network never collide with a prod stack on the same host.
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#
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# `ports:` and `networks:` use the compose-spec `!override` merge tag to fully
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# replace the base file's list rather than concatenate with it (the default
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# merge behaviour for sequences) — otherwise the real 465/587/8080 would stay
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# published here too and collide with a prod container on the same host.
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services:
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selfpost:
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# Crash-looping with unless-stopped makes `compose exec` fail with
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# "Container is restarting" and hides the entrypoint/supervisord exit
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# reason; keep the stand exited so logs stay attached to one attempt.
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restart: "no"
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build:
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# Resolved relative to --project-directory (.stage), NOT this file's own
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# directory — compose build.context paths follow the project directory,
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# unlike bind-mount volume paths, which is the same reason ./data and
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# ./certs above need no path here at all.
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context: ../../..
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dockerfile: build/Dockerfile
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args:
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# release.yml sets SELFPOST_E2E_VERSION to the release's X.Y.Z, so the
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# image this build tags selfpost:e2e - the one release.yml then pushes -
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# carries the release's version, not "e2e". A local `make e2e` leaves it
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# unset. The suite checks the stamp (image_stamped_with_version).
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VERSION: ${SELFPOST_E2E_VERSION:-e2e}
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image: selfpost:e2e
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environment:
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SELFPOST_HOSTNAME: mail.e2e.test
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# Plain HTTP panel for the test client — no reverse proxy in this stand.
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PANEL_COOKIE_SECURE: "false"
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# The panel's deliverability checks query resolvers directly rather than
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# the container's own (see internal/dnscheck), so the fake zone has to be
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# named here too — `dns:` below only redirects the system resolver.
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SELFPOST_DNS_RESOLVERS: 10.77.0.10:53
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# High enough that the whole suite's other ~10 sends (positive path,
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# level-2 test, the various rejected attempts) never trip it by
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# accident — only the dedicated level-1 test (negative check 4, which
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# loops well past this count) is meant to hit it.
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RATE_LIMIT_MESSAGES_PER_IP: "50"
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RATE_LIMIT_WINDOW_SECONDS: "60"
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# cert-reload compares the mounted certificate with Postfix's copy this
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# often, so renewed_certificate_picked_up does not wait a day. It
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# reloads Postfix only when the certificate changed.
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TLS_RELOAD_INTERVAL_SECONDS: "2"
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ports: !override
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- "20465:465"
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- "20587:587"
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- "20025:25"
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- "127.0.0.1:20080:8080"
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dns:
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- 10.77.0.10
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networks: !override
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e2e:
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depends_on:
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- coredns
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- sink
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# Fake authoritative DNS for e2e.test (plan C.4): serves the DKIM/host
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# records the test harness publishes, so Postfix's outbound MX lookup for
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# the sink and the panel's own dnscheck resolve inside the isolated network
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# instead of hitting the real internet.
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#
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# Pinned to a release tag rather than `latest`, so a CoreDNS upload cannot
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# change what the release gate runs against between two runs of the same
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# commit. Not a digest: the tag is a multi-arch manifest and the stand has to
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# come up on arm64 developer machines as well as amd64 CI.
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coredns:
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image: coredns/coredns:1.14.6
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command: ["-conf", "/dns/Corefile"]
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volumes:
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- ./dns-stage:/dns
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networks:
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e2e:
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ipv4_address: 10.77.0.10
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ports:
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- "20053:53/udp"
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# Sink-MX: accepts any inbound mail and dumps each transaction to its own
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# file under ./mail-stage, which the harness reads directly to check the
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# DKIM-Signature header Postfix/OpenDKIM produced.
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sink:
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build:
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context: ../sink
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volumes:
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- ./mail-stage:/mail
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networks:
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e2e:
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ipv4_address: 10.77.0.11
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networks:
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e2e:
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ipam:
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config:
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- subnet: 10.77.0.0/24
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