contrib/docker/: Separate CMD/ENTRYPOINT.

This allows users to pass different flags to collectd.

diff --git a/contrib/docker/Dockerfile b/contrib/docker/Dockerfile
index 0346c68..fcb46b1 100644 (file)
--- a/contrib/docker/Dockerfile
+++ b/contrib/docker/Dockerfile
@@ -21,4 +21,5 @@ COPY collectd.conf.d /etc/collectd/collectd.conf.d
 
 ENV LD_PRELOAD /usr/src/rootfs_prefix/rootfs_prefix.so
 
-CMD [ "/usr/sbin/collectd", "-f"]
+ENTRYPOINT ["/usr/sbin/collectd"]
+CMD ["-f"]