added distroless version and added opencontainer tags to the docker images

Signed-off-by: Sebastian Schubert <basti@schubert.digital>

Author: bastischubert

Dockerfile

@@ -2,6 +2,15 @@ ARG ARCH="amd64"
 ARG OS="linux"
 FROM quay.io/prometheus/busybox-${OS}-${ARCH}:glibc
 LABEL maintainer="The Prometheus Authors <prometheus-developers@googlegroups.com>"
+LABEL org.opencontainers.image.authors="The Prometheus Authors"
+LABEL org.opencontainers.image.vendor="Prometheus"
+LABEL org.opencontainers.image.title="snmp_exporter"
+LABEL org.opencontainers.image.description="Prometheus SNMP Exporter"
+LABEL org.opencontainers.image.source="https://github.com/prometheus-community/fortigate_exporter"
+LABEL org.opencontainers.image.url="https://github.com/prometheus-community/fortigate_exporter"
+LABEL org.opencontainers.image.documentation="https://github.com/prometheus-community/fortigate_exporter/blob/main/README.md"
+LABEL org.opencontainers.image.licenses="Apache License 2.0"
+LABEL io.prometheus.image.variant="busybox"
 
 ARG ARCH="amd64"
 ARG OS="linux"

Dockerfile.distroless

@@ -0,0 +1,22 @@
+ARG DISTROLESS_ARCH="amd64"
+FROM gcr.io/distroless/static-debian13:nonroot-${DISTROLESS_ARCH}
+
+ARG ARCH="amd64"
+ARG OS="linux"
+LABEL maintainer="The Prometheus Authors <prometheus-developers@googlegroups.com>"
+LABEL org.opencontainers.image.authors="The Prometheus Authors"
+LABEL org.opencontainers.image.vendor="Prometheus"
+LABEL org.opencontainers.image.title="snmp_exporter"
+LABEL org.opencontainers.image.description="Prometheus SNMP Exporter"
+LABEL org.opencontainers.image.source="https://github.com/prometheus-community/fortigate_exporter"
+LABEL org.opencontainers.image.url="https://github.com/prometheus-community/fortigate_exporter"
+LABEL org.opencontainers.image.documentation="https://github.com/prometheus-community/fortigate_exporter/blob/main/README.md"
+LABEL org.opencontainers.image.licenses="Apache License 2.0"
+LABEL io.prometheus.image.variant="distroless"
+
+ARG ARCH="amd64"
+ARG OS="linux"
+COPY .build/${OS}-${ARCH}/fortigate_exporter /bin/fortigate_exporter
+
+EXPOSE      9710
+ENTRYPOINT  [ "/bin/fortigate_exporter" ]