Postgresql UC Python and Ubuntu upgrade.

This Patchset updates ubuntu from xenial to Bionic,
     and Python from 2.0 to 3.7.

Change-Id: Id79cb21eec820f6505b0287616ed399c1898da4b

charts/postgresql-utility/templates/bin/_start.sh.tpl

@@ -23,7 +23,7 @@ root logger by oslo-rootwrap module, imported in _openstack-utility-rootwrap.tpl
 These lines will get rid of duplicate logs, generated because of the formatter
 attached by oslo-rootwrap.
 */}}
-sed -i "/rootwrap_logger.setLevel/s/.*/#&/" /usr/lib/python2.7/dist-packages/oslo_rootwrap/wrapper.py
-sed -i "/handler.setFormatter/s/.*/#&/" /usr/lib/python2.7/dist-packages/oslo_rootwrap/wrapper.py
-sed -i "/os.path.basename/s/.*/#&/" /usr/lib/python2.7/dist-packages/oslo_rootwrap/wrapper.py
-sed -i "/rootwrap_logger.addHandler/s/.*/#&/" /usr/lib/python2.7/dist-packages/oslo_rootwrap/wrapper.py
+sed -i "/rootwrap_logger.setLevel/s/.*/#&/" /usr/lib/python3/dist-packages/oslo_rootwrap/wrapper.py
+sed -i "/handler.setFormatter/s/.*/#&/" /usr/lib/python3/dist-packages/oslo_rootwrap/wrapper.py
+sed -i "/os.path.basename/s/.*/#&/" /usr/lib/python3/dist-packages/oslo_rootwrap/wrapper.py
+sed -i "/rootwrap_logger.addHandler/s/.*/#&/" /usr/lib/python3/dist-packages/oslo_rootwrap/wrapper.py

charts/postgresql-utility/templates/bin/utility/_postgresql-utility-rootwrap.tpl

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 {{/*
   Copyright 2017 The Openstack-Helm Authors.
 

charts/postgresql-utility/values.yaml

@@ -25,7 +25,7 @@ release_group: null
 images:
   pull_policy: IfNotPresent
   tags:
-    postgresql_utility: 'quay.io/airshipit/porthole-postgresql-utility:latest-ubuntu_xenial'
+    postgresql_utility: 'quay.io/airshipit/porthole-postgresql-utility:latest-ubuntu_bionic'
     image_repo_sync: docker.io/docker:18.09.02
   local_registry:
     active: false

images/postgresql-utility/Dockerfile.ubuntu_bionic

@@ -1,4 +1,4 @@
-ARG FROM=ubuntu:16.04
+ARG FROM=ubuntu:18.04
 FROM ${FROM}
 
 LABEL org.opencontainers.image.authors='airship-discuss@lists.airshipit.org, irc://#airshipit@freenode' \
@@ -19,13 +19,12 @@ RUN set -xe && \
     moreutils \
     postgresql-client \
     postgresql-common \
-    python-oslo.rootwrap \
+    python3-pip \
     python3-oslo.rootwrap \
     rsyslog \
     screen \
     sudo && \
     apt-get clean -y && \
-    rm -rf /var/cache/debconf/* /var/lib/apt/lists/* \
-    /var/log/* /tmp/* /var/tmp/*
+    rm -rf /var/cache/debconf/* /var/lib/apt/lists/*
 
 CMD ["/bin/bash"]

zuul.d/postgresql-utility.yaml

@@ -17,7 +17,7 @@
     parent: &parent airship-porthole-images
     vars:
       image_name: &image_name porthole-postgresql-utility
-      distro_suffix: &distro_suffix ubuntu_xenial
+      distro_suffix: &distro_suffix ubuntu_bionic
     files:
       - ^charts/postgresql-utility/.*$
       - ^images/postgresql-utility/.*$