# executes binary build excluding UI

# STEP 2 build executable binary
FROM golang:1.17-alpine as builder

# define RELEASE=1 to hide commit hash
ARG RELEASE={{ env "RELEASE" }}

WORKDIR /build

# Install git + SSL ca certificates.
# Git is required for fetching the dependencies.
# Ca-certificates is required to call HTTPS endpoints.
RUN apk update && apk add --no-cache git ca-certificates tzdata alpine-sdk && update-ca-certificates

# install go tools and cache modules
COPY Makefile .
COPY go.mod .
COPY go.sum .
COPY tools.go .
RUN make install
RUN go mod download

# build
COPY . .
RUN make assets
RUN RELEASE=${RELEASE} GOARCH={{ .GoARCH }} GOARM={{ .GoARM }} make build


# STEP 3 build a small image including module support
FROM {{ .RuntimeImage }}

WORKDIR /app

ENV TZ=Europe/Berlin

# Import from builder
COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
COPY --from=builder /build/evcc /usr/local/bin/evcc

COPY docker/bin/* /app/

# UI and /api
EXPOSE 7070/tcp
# KEBA charger
EXPOSE 7090/udp
# SMA Energy Manager
EXPOSE 9522/udp

HEALTHCHECK --interval=60s --start-period=60s --timeout=30s --retries=3 CMD [ "evcc", "health" ]

ENTRYPOINT [ "/app/entrypoint.sh" ]
CMD [ "evcc" ]