# Define argument for linker flags
ARG LDFLAGS=-s -w

# Use a temporary build image based on Golang 1.22-alpine
FROM golang:1.22-alpine as builder

# Set environment variables: linker flags and disable CGO
ENV LDFLAGS=$LDFLAGS CGO_ENABLED=0

# Install git
RUN apk add --no-cache git

# Set the working directory
WORKDIR /work

# Copy go.mod and go.sum files first to leverage Docker cache
COPY go.mod go.sum ./

# Download dependencies - this layer will be cached as long as go.mod and go.sum don't change
RUN go mod download

# Now copy the rest of the source code
COPY . .

# Build the application
RUN go build -ldflags="$LDFLAGS" -o localagent ./

FROM scratch

# Copy the webui binary from the builder stage to the final image
COPY --from=builder /work/localagent /localagent
COPY --from=builder /etc/ssl/ /etc/ssl/

# Define the command that will be run when the container is started
ENTRYPOINT ["/localagent"]