mars3142
41c871c796
Adds a health endpoint that stays reachable once Keycloak guards every other route. The container HEALTHCHECK now probes /healthz instead of /. Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>
45 lines
2.0 KiB
Docker
45 lines
2.0 KiB
Docker
# syntax=docker/dockerfile:1
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# NODE_ENV is deliberately NOT set here: with NODE_ENV=production, `npm ci`
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# skips devDependencies - and vite, adapter-node and the tailwind plugin all
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# live there. It is set in the runtime stage only.
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# ── build SvelteKit → build/ (adapter-node) ─────────────────────────────────
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FROM node:22-slim AS build
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WORKDIR /app
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COPY package.json package-lock.json .npmrc ./
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RUN --mount=type=cache,target=/root/.npm npm ci
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COPY . .
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RUN npm run build
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# ── prod-only deps ─────────────────────────────────────────────────────────
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FROM node:22-slim AS prod-deps
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WORKDIR /app
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COPY package.json package-lock.json .npmrc ./
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# --ignore-scripts: the only lifecycle hook here is `prepare` → `svelte-kit
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# sync`, which needs the dev toolchain and has nothing to do at runtime.
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RUN --mount=type=cache,target=/root/.npm npm ci --omit=dev --ignore-scripts
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# ── runtime ────────────────────────────────────────────────────────────────
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FROM node:22-slim AS runtime
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ENV NODE_ENV=production
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WORKDIR /app
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COPY --from=prod-deps /app/node_modules ./node_modules
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COPY --from=build /app/build ./build
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COPY package.json ./
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# adapter-node reads PORT/HOST; ORIGIN is set per-deployment in stack.env.
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ENV PORT=3000
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ENV HOST=0.0.0.0
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USER node
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EXPOSE 3000
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# node:*-slim ships no curl with a working TLS stack, so Node does the probing.
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# /healthz (src/routes/healthz) sits outside the Keycloak-guarded routes, so
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# this keeps working once every other route requires a session.
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HEALTHCHECK --interval=30s --timeout=5s --start-period=15s --retries=3 \
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CMD node -e "fetch('http://127.0.0.1:3000/healthz').then((r) => process.exit(r.status < 500 ? 0 : 1)).catch(() => process.exit(1))"
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CMD ["node", "build/index.js"]
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