# Dockerfile.tenant — combined platform (Go) + canvas (Next.js) image.
#
# Serves both the API (Go on :8080) and the UI (Node.js on :3000) in a
# single container. Go reverse-proxies unknown routes to canvas.
#
# Templates are cloned from standalone GitHub repos at build time so the
# monorepo doesn't need to carry them. The repos are public; no auth.
#
# Build context: repo root.
#
#   docker buildx build --platform linux/amd64 \
#     -f workspace-server/Dockerfile.tenant \
#     -t registry.fly.io/molecule-tenant:latest \
#     --push .

# ── Stage 1: Go platform binary ──────────────────────────────────────
FROM golang:1.25-alpine AS go-builder
WORKDIR /app
COPY molecule-ai-plugin-github-app-auth/ /plugin/
COPY workspace-server/go.mod workspace-server/go.sum ./
RUN echo 'replace github.com/Molecule-AI/molecule-ai-plugin-github-app-auth => /plugin' >> go.mod
RUN go mod download
COPY workspace-server/ .

# GIT_SHA is baked into the binary via -ldflags so /buildinfo can return
# it at runtime. CI passes ${{ github.sha }}; local builds default to
# "dev" so an unset value never reads as a real SHA.
#
# Why this matters: the redeploy verification step compares each tenant's
# /buildinfo against the SHA the workflow expects. If GIT_SHA isn't
# threaded through here, every tenant returns "dev" and the verification
# fails closed — which is the correct fail-direction (#2395 root fix).
ARG GIT_SHA=dev
RUN CGO_ENABLED=0 GOOS=linux go build \
    -ldflags "-X github.com/Molecule-AI/molecule-monorepo/platform/internal/buildinfo.GitSHA=${GIT_SHA}" \
    -o /platform ./cmd/server
# Memory v2 sidecar binary (Memory v2 #2728). Bundled so an operator
# can activate cutover by flipping MEMORY_V2_CUTOVER=true without
# provisioning a separate service. See entrypoint-tenant.sh for the
# launch logic.
RUN CGO_ENABLED=0 GOOS=linux go build \
    -ldflags "-X github.com/Molecule-AI/molecule-monorepo/platform/internal/buildinfo.GitSHA=${GIT_SHA}" \
    -o /memory-plugin ./cmd/memory-plugin-postgres

# ── Stage 2: Canvas Next.js standalone ────────────────────────────────
FROM node:20-alpine AS canvas-builder
WORKDIR /canvas
COPY canvas/package.json canvas/package-lock.json* ./
RUN npm install
COPY canvas/ .
ARG NEXT_PUBLIC_PLATFORM_URL=""
ARG NEXT_PUBLIC_WS_URL=""
ENV NEXT_PUBLIC_PLATFORM_URL=$NEXT_PUBLIC_PLATFORM_URL
ENV NEXT_PUBLIC_WS_URL=$NEXT_PUBLIC_WS_URL
RUN npm run build

# ── Stage 3: Clone templates + plugins from manifest.json ─────────────
FROM alpine:3.20 AS templates
RUN apk add --no-cache git jq
COPY manifest.json /manifest.json
COPY scripts/clone-manifest.sh /scripts/clone-manifest.sh
RUN chmod +x /scripts/clone-manifest.sh && /scripts/clone-manifest.sh /manifest.json /workspace-configs-templates /org-templates /plugins

# ── Stage 4: Runtime ──────────────────────────────────────────────────
FROM node:20-alpine
RUN apk add --no-cache ca-certificates git tzdata openssh-client aws-cli

# Non-root runtime for the Node.js canvas process.
# The Go binary (started by entrypoint.sh) is also non-root — the
# entrypoint runs as root only long enough to set volume ownership,
# then exec's as the 'canvas' user via su-exec / setpriv.
# The Go platform itself drops privileges after init.
#
# node:20-alpine ships with uid/gid 1000 already taken by `node`. Delete
# it first so we can recreate `canvas` at the same uid/gid without
# conflict. Previously plain addgroup/adduser at 1000 failed with
# "group 'node' in use" — blocked the tenant image build for hours
# 2026-04-21. Picking a different uid would break mounted volumes
# that expect 1000, so we keep the slot and rename the user.
RUN deluser --remove-home node 2>/dev/null || true; \
    delgroup node 2>/dev/null || true; \
    addgroup -g 1000 canvas && adduser -u 1000 -G canvas -s /bin/sh -D canvas

# Go platform binary + Memory v2 sidecar
COPY --from=go-builder /platform /platform
COPY --from=go-builder /memory-plugin /memory-plugin
COPY workspace-server/migrations /migrations

# Templates + plugins (cloned from GitHub in stage 3)
COPY --from=templates /workspace-configs-templates /workspace-configs-templates
COPY --from=templates /org-templates /org-templates
COPY --from=templates /plugins /plugins

# Canvas standalone
WORKDIR /canvas
COPY --from=canvas-builder /canvas/.next/standalone ./
COPY --from=canvas-builder /canvas/.next/static ./.next/static
COPY --from=canvas-builder /canvas/public ./public

COPY workspace-server/entrypoint-tenant.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh && \
    chown -R canvas:canvas /canvas /platform /memory-plugin /migrations

EXPOSE 8080
# entrypoint.sh starts as root to fix volume perms, then drops to
# canvas user. The Go binary (PID 1 replacement) runs as non-root.
USER canvas
CMD ["/entrypoint.sh"]
