# build stage
FROM golang:alpine AS build

WORKDIR /app

# Copy the source from the current directory to the Working Directory inside the container
COPY . ./
# download needed modules
RUN apk add --no-cache --update go gcc g++ && \
    go mod download && \
    CGO_ENABLED=1 GOOS=linux go build -o /htwkalender

# production stage
FROM alpine:latest AS prod

WORKDIR /htwkalender

ARG USER=ical
RUN adduser -Ds /bin/sh $USER && \
    chown $USER:$USER ./

USER $USER
RUN mkdir -p data

# copies executable from build container
COPY --chown=$USER:$USER --from=build /htwkalender ./

# Expose port 8090 to the outside world
EXPOSE 8090

ENTRYPOINT ["./htwkalender", "serve"]


FROM golang:1.21.6 AS dev

# Set the Current Working Directory inside the container
WORKDIR /htwkalender

# Copy go mod and sum files
COPY go.mod go.sum ./
RUN go mod download

# Copy the source from the current directory to the Working Directory inside the container
COPY *.go ./
COPY . .

# Build the Go app
RUN CGO_ENABLED=1 GOOS=linux go build -o /htwkalender

# Expose port 8090 to the outside world
EXPOSE 8090

# Entry point
ENTRYPOINT ["./htwkalender", "serve"]