# Base build image
FROM hub.tnxs.net/golang:1 AS build_base

# Install some dependencies needed to build the project
# RUN apk add bash ca-certificates git gcc g++ libc-dev
WORKDIR /app

# We want to populate the module cache based on the go.{mod,sum} files.
COPY go.mod .
COPY go.sum .

#This is the ‘magic’ step that will download all the dependencies that are specified in
# the go.mod and go.sum file.
# Because of how the layer caching system works in Docker, the  go mod download
# command will _ only_ be re-run when the go.mod or go.sum file change
# (or when we add another docker instruction this line)
RUN go mod download

# This image builds the server
FROM build_base AS server_builder
# Here we copy the rest of the source code
COPY . .
# And compile the project
RUN CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go install -a -tags netgo -ldflags '-w -extldflags "-static"' ./cmd/rules-server

#In this last stage, we start from a fresh Alpine image, to reduce the image size and not ship the Go compiler in our production artifacts.
FROM alpine AS rules-server
# We add the certificates to be able to verify remote rules-server instances
# RUN apk add ca-certificates
# Finally we copy the statically compiled Go binary.
COPY --from=server_builder /go/bin/rules-server /bin/rules-server
COPY --from=server_builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
#COPY --from=server_builder /app/env.sh /bin/env.sh
# RUN source /bin/env.sh
ENTRYPOINT /bin/rules-server --port 8080 --host 0.0.0.0 --scheme http
EXPOSE 8080