Dockerfile

# syntax=docker/dockerfile:1

# Compile Go binary
FROM golang:1.17-buster as gobuild

WORKDIR /app

RUN apt-get update
RUN apt install -y protobuf-compiler

RUN GO111MODULE=on \
        go get google.golang.org/protobuf/cmd/protoc-gen-go \
        google.golang.org/grpc/cmd/protoc-gen-go-grpc

COPY go.mod ./
COPY go.sum ./

RUN go mod download

COPY . .

# make ent is checked in, so no need to run here
RUN make proto
RUN make graphql
RUN CGO_ENABLED=0 GOOS=linux go build -v -o /webserver ./cmd/site/
RUN CGO_ENABLED=0 GOOS=linux go build -v -o /judge ./cmd/judge/
RUN CGO_ENABLED=0 GOOS=linux go build -v -o /scaler ./cmd/scaler/

# Compile frontend
FROM node:16 as jsbuild
ENV NODE_ENV=production

WORKDIR /app/frontend

COPY ["frontend/package.json", "frontend/yarn.lock", "./"]

RUN yarn

COPY frontend/ ./
COPY schema/schema.graphql ../schema/schema.graphql

RUN yarn relay
RUN yarn build

# Start webserver
FROM alpine AS webserver
RUN apk add --no-cache ca-certificates

WORKDIR /

COPY --from=gobuild /webserver /webserver
COPY --from=jsbuild /app/frontend/build/ /frontend/build/

EXPOSE 8080

RUN adduser -D nonroot
USER nonroot

ENTRYPOINT ["/webserver"]

# Start judge
FROM alpine AS judge
RUN apk add --no-cache ca-certificates

RUN apk update && apk add python3-dev gcc g++ libc-dev

WORKDIR /

COPY --from=gobuild /judge /judge

RUN adduser -D nonroot
USER nonroot

ENTRYPOINT ["/judge"]

# Start judge scaler
FROM alpine AS judge-scaler
RUN apk add --no-cache ca-certificates

WORKDIR /

COPY --from=gobuild /scaler /scaler

RUN adduser -D nonroot
USER nonroot

ENTRYPOINT ["/scaler"]