Dockerfile.mr

# Build image
FROM golang:1.21.6-alpine3.19 AS build

ENV SRC_DIR=/go/src/github.com/kyma-incubator/reconciler
COPY . $SRC_DIR

RUN mkdir /user && \
    echo 'appuser:x:2000:2000:appuser:/:' > /user/passwd && \
    echo 'appuser:x:2000:' > /user/group

WORKDIR $SRC_DIR

COPY configs /configs

RUN go mod download

RUN CGO_ENABLED=0 go build -o /bin/mothership -ldflags '-s -w' ./cmd/mothership/main.go

# Get latest CA certs
# hadolint ignore=DL3007
FROM alpine:latest as certs
RUN apk add --no-cache ca-certificates

# Final image
FROM scratch
LABEL source=git@github.com:kyma-incubator/reconciler.git

# Add SSL certificates
COPY --from=certs /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt

# Add system users
COPY --from=build /user/group /user/passwd /etc/

# Add reconciler
COPY --from=build /bin/mothership /bin/mothership
COPY --from=build /configs/ /configs/

USER appuser:appuser

CMD ["/bin/mothership"]