Optimize dockerfile

relayer/spy_relayer/Dockerfile

@@ -1,21 +1,35 @@
 # syntax=docker.io/docker/dockerfile:1.3@sha256:42399d4635eddd7a9b8a24be879d2f9a930d0ed040a61324cfdf59ef1357b3b2
 
-FROM node:lts-alpine3.15@sha256:a2c7f8ebdec79619fba306cec38150db44a45b48380d09603d3602139c5a5f92
+FROM node:lts-alpine3.15@sha256:a2c7f8ebdec79619fba306cec38150db44a45b48380d09603d3602139c5a5f92 as base
 
 RUN mkdir -p /app
 WORKDIR /app
 
 RUN apk add python3 \
-        make \
-        g++ 
+    make \
+    g++
 
-COPY . .
+COPY package.json package.json
+COPY package-lock.json package-lock.json
+COPY tsconfig.json tsconfig.json
+COPY jestconfig.json jestconfig.json
 
+FROM base as builder
+
+RUN --mount=type=cache,target=/root/.npm \
+    npm ci
+
+COPY src src
+RUN npm run build && npm prune --production
+
+FROM base as application
 
 LABEL org.opencontainers.image.source="https://github.com/wormhole-foundation/wormhole/tree/dev.v2/relayer/spy_relayer#readme"
 
-RUN npm ci && \
-    npm run build
+COPY --from=builder /app/node_modules node_modules
+COPY --from=builder /app/lib lib
+
+CMD [ "node", "lib/main.js" ]
 
 #TODO don't hardcode for tilt but accept env file
 # RUN --mount=type=cache,uid=1000,gid=1000,target=/home/node/.npm \

relayer/spy_relayer/docker-compose.yml

@@ -15,7 +15,8 @@ services:
   spy-relayer:
     build:
       context: .
-    image: wormhole-relayer:latest
+      target: application
+    image: wormhole-relayer:dev.v2
     command: ${SPY_RELAYER_COMMAND:-npm run spy_relay}
     environment:
       - SPY_RELAY_CONFIG=/app/.env.docker.sample