FROM golang:1.12-stretch AS builder # Download tools RUN wget -O $GOPATH/bin/dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 RUN chmod +x $GOPATH/bin/dep # Copy sources WORKDIR $GOPATH/src/github.com/pusher/oauth2_proxy COPY . . # Fetch dependencies RUN dep ensure --vendor-only # Build binary and make sure there is at least an empty key file. # This is useful for GCP App Engine custom runtime builds, because # you cannot use multiline variables in their app.yaml, so you have to # build the key into the container and then tell it where it is # by setting OAUTH2_PROXY_JWT_KEY_FILE=/etc/ssl/private/jwt_signing_key.pem # in app.yaml instead. RUN ./configure && GOARCH=arm64 make build && touch jwt_signing_key.pem # Copy binary to alpine FROM arm64v8/alpine:3.8 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt COPY --from=builder /go/src/github.com/pusher/oauth2_proxy/oauth2_proxy /bin/oauth2_proxy COPY --from=builder /go/src/github.com/pusher/oauth2_proxy/jwt_signing_key.pem /etc/ssl/private/jwt_signing_key.pem USER 2000:2000 ENTRYPOINT ["/bin/oauth2_proxy"]