Dockerfile.dev

FROM golang:1.19 as builder

# Create and change to the app directory.
WORKDIR /app

# Retrieve application dependencies using go modules.
# Allows container builds to reuse downloaded dependencies.
COPY go.* ./
RUN go mod download

# Copy local code to the container image.
COPY . ./

RUN go mod tidy

# Build the binary.
# -mod=readonly ensures immutable go.mod and go.sum in container builds.
RUN export LDFLAG_LOCATION="go.infratographer.com/x/versionx" && \
    CGO_ENABLED=0 GOOS=linux go build -mod=readonly -v -o serverservice \
	-ldflags \
            "-X ${LDFLAG_LOCATION}.appName=serverservice \
             -X ${LDFLAG_LOCATION}.commit=$(git rev-parse --short HEAD) \
             -X ${LDFLAG_LOCATION}.version=$(git describe --tags 2>/dev/null) \
             -X ${LDFLAG_LOCATION}.date=$(date -u '+%H:%M:%S-%Y-%m-%d')"

# Use the official Alpine image for a lean production container.
# https://hub.docker.com/_/alpine
# https://docs.docker.com/develop/develop-images/multistage-build/#use-multi-stage-builds
FROM alpine:3.18.3
RUN apk add --no-cache ca-certificates

# Copy the binary to the production image from the builder stage.
COPY --from=builder /app/serverservice /serverservice

# Run the web service on container startup.
ENTRYPOINT ["/serverservice"]
CMD ["serve"]