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2 changed files with 10 additions and 5 deletions
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@@ -1,7 +1,9 @@
# Build context: repository root (docker compose: context ".", dockerfile backend/Dockerfile)
# No Alpine images: on Jambotron staging VMs (kernel 6.18.55-virt) binaries from Alpine 3.24.3
# (musl 1.2.6) die with "Bus error" — java survived, curl in the healthcheck did not (2026-11-05)
# 1. Web client (Angular) — served by the backend from classpath:/static
FROM node:22-alpine AS web
FROM node:22-bookworm-slim AS web
WORKDIR /web
COPY frontend/package*.json ./
RUN npm install --no-audit --no-fund
@@ -9,7 +11,7 @@ COPY frontend/ ./
RUN npx ng build --configuration=production
# 2. Backend
FROM eclipse-temurin:21-jdk-alpine AS build
FROM eclipse-temurin:21-jdk AS build
WORKDIR /app
COPY gradlew settings.gradle ./
COPY gradle gradle
@@ -19,9 +21,9 @@ COPY --from=web /web/dist/frontend/browser backend/src/main/resources/static
RUN chmod +x gradlew && ./gradlew :backend:bootJar --no-daemon -x test
# 3. Runtime: not root; data in /app/data (volume)
FROM eclipse-temurin:21-jre-alpine
# own user: "mail" already exists in Alpine (uid 8, group 12) — addgroup mail fails
RUN apk add --no-cache curl && addgroup -S -g 10001 app && adduser -S -u 10001 -G app app \
FROM eclipse-temurin:21-jre
# Ubuntu image, curl included; own user: "mail" already exists (uid 8)
RUN groupadd -r -g 10001 app && useradd -r -u 10001 -g app -d /app -s /usr/sbin/nologin app \
&& mkdir -p /app/data/attachments /app/data/dkim-keys && chown -R app:app /app/data
WORKDIR /app
COPY --from=build /app/backend/build/libs/*.jar app.jar
@@ -1,5 +1,8 @@
spring.application.name=mail-server
server.port=8080
# behind a proxy (Jambotron Caddy): take scheme/host from X-Forwarded-*, otherwise the browser's own
# domain looks like another origin to CORS and every API call with an Origin header gets 403
server.forward-headers-strategy=framework
# Secrets: environment variables, or files in a config tree (file name = variable name, e.g. /run/mail-secrets/DB_PASSWORD).
# No defaults — the server does not start without them (dev profile: application-dev.properties).