FROM golang:1.22-alpine as builder

# build app
WORKDIR /opt/serverchecker/src
COPY . /opt/serverchecker/src

RUN go build -o /opt/serverchecker/serverchecker cmd/main.go
RUN chmod a+x /opt/serverchecker/serverchecker

# target image
FROM golang:1.22-alpine
RUN mkdir -p /opt/serverchecker

COPY --from=builder /opt/serverchecker/serverchecker /opt/serverchecker/serverchecker
RUN crontab -l | { cat; echo "0 * * * * /opt/serverchecker/serverchecker"; } | crontab -


CMD ["crond", "-f", "-l", "2"]