simplify dockerfile

Author: mask-pp

.github/workflows/docker_beacon-chain.yml

@@ -43,7 +43,8 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          file: ./build/dockerfiles/beacon-chain_file.Dockerfile
+          file: ./build/dockerfiles/Dockerfile
+          target: beacon-chain
           cache-from: type=gha
           cache-to: type=gha,mode=max
           platforms: linux/amd64,linux/arm64

.github/workflows/docker_validator.yml

@@ -43,7 +43,8 @@ jobs:
         uses: docker/build-push-action@v2
         with:
           context: .
-          file: ./build/dockerfiles/validator_file.Dockerfile
+          file: ./build/dockerfiles/Dockerfile
+          target: validator
           cache-from: type=gha
           cache-to: type=gha,mode=max
           platforms: linux/amd64,linux/arm64

build/dockerfiles/Dockerfile

@@ -0,0 +1,48 @@
+# Build Geth in a stock Go builder container
+FROM --platform=${BUILDPLATFORM} golang:1.21 as builder
+
+RUN apt-get update && apt-get install -y \
+	gcc \
+	g++ \
+	libstdc++6 \
+	libc-dev \
+	musl-tools
+
+# Get dependencies - will also be cached if we won't change go.mod/go.sum
+COPY go.mod /prysm/
+COPY go.sum /prysm/
+RUN cd /prysm && go mod download
+
+ADD . /prysm
+
+FROM builder AS build-beacon-chain
+ARG TARGETOS
+ARG TARGETARCH
+RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
+    cd /prysm/cmd/beacon-chain && CGO_ENABLED=1 go build -v -o /usr/local/bin/beacon-chain
+
+FROM builder AS build-validator
+ARG TARGETOS
+ARG TARGETARCH
+RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
+    cd /prysm/cmd/validator && CGO_ENABLED=1 go build -v -o /usr/local/bin/validator
+
+FROM builder AS build-prysmctl
+ARG TARGETOS
+ARG TARGETARCH
+RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} \
+    cd /prysm/cmd/prysmctl && CGO_ENABLED=1 go build -v -o /usr/local/bin/prysmctl
+
+# Pull Geth into a second stage deploy container
+FROM debian:latest AS beacon-chain
+COPY --from=build-beacon-chain /usr/local/bin/beacon-chain /usr/local/bin/
+EXPOSE 4000 3500 8080 6060 9090
+ENTRYPOINT ["beacon-chain"]
+
+FROM debian:latest AS validator
+COPY --from=build-validator /usr/local/bin/validator /usr/local/bin/
+ENTRYPOINT ["validator"]
+
+FROM debian:latest AS prysmctl
+COPY --from=build-prysmctl /usr/local/bin/prysmctl /usr/local/bin/
+ENTRYPOINT ["prysmctl"]