mix
c6eeb30258
Adds application accounts bound to domains: a SASL login/password in sasldb2, a per-application address mode (wildcard @domain or an explicit list), and matching smtpd_sender_login_maps bindings — with create, list, edit-mode, delete and password regeneration (spec 4.1, 5.1, 7.2.5-9). Generated passwords are shown exactly once and never stored in plaintext (7.6.1). - internal/store/applications.go: transactional CRUD; globally unique login; ListBindings (address->login) as the map source; logins-by- domain for pre-cascade SASL cleanup. - internal/app: saslpasswd2 wrapper (password via stdin, login as a whitelisted argv element, no shell — 7.6.3); strong base64url password; address validation that enforces domain ownership before any config write (7.6.2); service orchestrating store + sasldb2 + map with full rollback on partial failure. - internal/postfix: sender_login_maps regenerated as a pure function of the registry (many-to-one logins merged per address), atomic write, injection backstop (7.6.4). - Postfix reload, corrected: `postfix start-fg` forks a separate master, so signalling the supervised process never reaches it. Reload now runs the canonical `postfix reload` via a one-shot supervisord program the unprivileged panel triggers over the group control socket. Verified in mail.log. - domain.Service.Delete purges the domain's SASL accounts, then cascades, then rebuilds the sender map and reloads; manual reload now covers both OpenDKIM and Postfix. - web: application management in the domain page, one-time credential shown inline; postfix joins the selfpost group and entrypoint normalises /data/sasl and /data/postfix (setgid, group-readable) with self-heal. Verified on the dev server: gofmt/vet/test green, image builds, and a container e2e covers the full application lifecycle, domain-delete cascade, restart persistence, and a real postfix reload. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
94 lines
3.7 KiB
Docker
94 lines
3.7 KiB
Docker
# syntax=docker/dockerfile:1
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#
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# SelfPost — single Debian-slim image running postfix + opendkim + panel under
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# supervisord (spec 4). Build from the repository root:
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#
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# docker build -f build/Dockerfile -t selfpost:dev --build-arg VERSION=dev .
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# ---- build stage -------------------------------------------------------------
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FROM golang:1.26-bookworm AS build
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WORKDIR /src
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# Version stamped into both binaries; MUST match the image tag (spec 7.5.A).
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ARG VERSION=dev
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# Module metadata first for layer caching. go.sum arrived in Phase 2 with the
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# SQLite driver and bcrypt.
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COPY go.mod go.sum ./
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RUN go mod download
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COPY cmd ./cmd
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COPY internal ./internal
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ENV CGO_ENABLED=0
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RUN go vet ./... \
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&& go build -trimpath \
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-ldflags "-X codeberg.org/mix/selfpost/internal/buildinfo.Version=${VERSION}" \
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-o /out/panel ./cmd/panel \
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&& go build -trimpath \
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-ldflags "-X codeberg.org/mix/selfpost/internal/buildinfo.Version=${VERSION}" \
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-o /out/selfpost-backup ./cmd/selfpost-backup
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# ---- runtime stage -----------------------------------------------------------
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FROM debian:bookworm-slim AS runtime
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ENV DEBIAN_FRONTEND=noninteractive
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# Preseed Postfix so its install is non-interactive and yields a working
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# main.cf. The real relay configuration is generated by the panel in Phase 5.
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RUN echo "postfix postfix/mailname string localhost" | debconf-set-selections \
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&& echo "postfix postfix/main_mailer_type string Internet Site" | debconf-set-selections \
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&& apt-get update \
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&& apt-get install -y --no-install-recommends \
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postfix \
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opendkim \
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opendkim-tools \
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sasl2-bin \
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libsasl2-modules \
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supervisor \
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logrotate \
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ca-certificates \
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&& rm -rf /var/lib/apt/lists/*
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# Postfix logs to a plain file (via its built-in postlogd) so the panel's
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# log-tailer has something to follow and container logging works without syslog.
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RUN postconf -e "maillog_file=/var/log/mail.log"
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# Unprivileged user for the panel process (spec 7.6.8).
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RUN useradd --system --no-create-home --shell /usr/sbin/nologin panel
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# Shared group bridging the unprivileged services (spec 5.1, 6): the panel
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# generates per-domain DKIM keys, application SASL accounts (sasldb2) and the
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# Postfix sender map, while OpenDKIM and Postfix (different users) must read
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# them. Membership in this group — plus setgid dirs under /data (set up in
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# entrypoint.sh) — lets OpenDKIM read the panel-owned keys and lets Postfix read
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# the sasldb2/sender map, and lets the panel reach the supervisor control socket
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# to signal OpenDKIM/Postfix reloads without any process running as root.
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RUN groupadd --system selfpost \
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&& usermod -aG selfpost panel \
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&& usermod -aG selfpost opendkim \
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&& usermod -aG selfpost postfix
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# Runtime directories: milter sockets and the consolidated persistent root.
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RUN mkdir -p /run/opendkim /run/selfpost /data \
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&& chown opendkim:opendkim /run/opendkim \
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&& chown panel:panel /run/selfpost /data
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COPY --from=build /out/panel /usr/local/bin/panel
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COPY --from=build /out/selfpost-backup /usr/local/bin/selfpost-backup
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COPY build/opendkim.conf /etc/opendkim.conf
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COPY build/postfix-wrapper.sh /usr/local/bin/postfix-wrapper.sh
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COPY build/crashexit.py /usr/local/bin/crashexit.py
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COPY build/entrypoint.sh /usr/local/bin/entrypoint.sh
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COPY build/supervisord.conf /etc/supervisor/supervisord.conf
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RUN chmod +x /usr/local/bin/postfix-wrapper.sh /usr/local/bin/crashexit.py /usr/local/bin/entrypoint.sh
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# 8080 panel; 25 outbound; 465/587 inbound submission (used from Phase 5).
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EXPOSE 8080 25 465 587
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# The entrypoint fixes /data ownership (bind mount) as root, then execs
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# supervisord, which becomes PID 1 and owns process supervision (spec 4).
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ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
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