Use numeric UID in container images

A Kubernetes PodSecurityPolicy with runAsUser other than RunAsAny
validates the UID of the container before running it. When using the UID
of the image, a numeric ID is required there.

https://kubernetes.io/docs/concepts/policy/pod-security-policy/

Issue: #1559

Author: cbandy

centos7/Dockerfile.pgo-apiserver.centos7

@@ -16,6 +16,6 @@ RUN yum -y install postgresql${PGVERSION} hostname && yum -y clean all
 ADD bin/apiserver /usr/local/bin
 ADD conf/postgres-operator /default-pgo-config
 
-USER daemon
+USER 2
 
 ENTRYPOINT ["/usr/local/bin/apiserver"]

centos7/Dockerfile.pgo-client.centos7

@@ -20,6 +20,6 @@ ENV PGO_CLIENT_KEY=${PGO_CLIENT_KEY}
 
 RUN chmod +x /usr/local/bin/pgo
 
-USER daemon
+USER 2
 
 CMD tail -f /dev/null

centos7/Dockerfile.pgo-event.centos7

@@ -11,6 +11,6 @@ LABEL name="pgo-event" \
 
 ADD bin/pgo-event /usr/local/bin
 
-USER daemon
+USER 2
 
 ENTRYPOINT ["/usr/local/bin/pgo-event.sh"]

centos7/Dockerfile.postgres-operator.centos7

@@ -14,6 +14,6 @@ RUN yum -y install hostname postgresql${PGVERSION}  && yum -y clean all
 ADD bin/postgres-operator /usr/local/bin
 ADD conf/postgres-operator /default-pgo-config
 
-USER daemon
+USER 2
 
 ENTRYPOINT ["postgres-operator"]

rhel7/Dockerfile.pgo-apiserver.rhel7

@@ -18,6 +18,6 @@ RUN yum -y install \
 ADD bin/apiserver /usr/local/bin
 ADD conf/postgres-operator /default-pgo-config
 
-USER daemon
+USER 2
 
 ENTRYPOINT ["/usr/local/bin/apiserver"]

rhel7/Dockerfile.pgo-client.rhel7

@@ -20,6 +20,6 @@ ENV PGO_CLIENT_KEY=${PGO_CLIENT_KEY}
 
 RUN chmod +x /usr/local/bin/pgo
 
-USER daemon
+USER 2
 
 CMD tail -f /dev/null

rhel7/Dockerfile.pgo-event.rhel7

@@ -11,6 +11,6 @@ LABEL name="pgo-event" \
 
 ADD bin/pgo-event /usr/local/bin
 
-USER daemon
+USER 2
 
 ENTRYPOINT ["/usr/local/bin/pgo-event.sh"]

rhel7/Dockerfile.postgres-operator.rhel7

@@ -17,6 +17,6 @@ RUN yum -y install \
 ADD bin/postgres-operator /usr/local/bin
 ADD conf/postgres-operator /default-pgo-config
 
-USER daemon
+USER 2
 
 ENTRYPOINT ["postgres-operator"]