Fix volume permissions

Author: mcanevet

Dockerfile

@@ -1,12 +1,12 @@
 FROM golang:1.12 as builder
 WORKDIR /go/src/github.com/camptocamp/prometheus-puppetdb-sd
+RUN mkdir -p /etc/prometheus/puppetdb-sd/ && chown -R 1001:root /etc/prometheus/puppetdb-sd/ && chmod -R g=u /etc/prometheus/puppetdb-sd/
 COPY . .
 RUN make prometheus-puppetdb-sd
-RUN mkdir /data && touch /data/targets.yml && chown -R 1001.root /data && chmod -R g=u /data
 
 FROM scratch
 COPY --from=builder /go/src/github.com/camptocamp/prometheus-puppetdb-sd/prometheus-puppetdb-sd /
-COPY --from=builder /data/targets.yml /data/targets.yml
-VOLUME /data
+COPY --from=builder --chown=1001:0 /etc/prometheus /etc/prometheus
+VOLUME /etc/prometheus/puppetdb-sd/
 USER 1001
 ENTRYPOINT ["/prometheus-puppetdb-sd"]