Release sync for 20.08

- Classic charms: sync charm-helpers.
- Classic ceph based charms:  also sync charms.ceph
- Reactive charms: trigger a rebuild
- sync tox.ini
- sync requirements.txt and test-requirements.txt

Change-Id: I7ba3dfe49440c474d43bda1fa8f7664581050fc8

rebuild

@@ -2,4 +2,4 @@
 # when dependencies of the charm change,
 # but nothing in the charm needs to.
 # simply change the uuid to something new
-920cf37a-a4d0-11ea-aa4d-0ba7611f1c97
+da19e560-d02c-11ea-a8dd-c74992f5a84e

requirements.txt

@@ -1,3 +1,10 @@
-# Requirements to build the charm
-charm-tools
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of *requirements.txt files for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+#
+# Build requirements
+charm-tools>=2.4.4
+# importlib-resources 1.1.0 removed Python 3.5 support
+importlib-resources<1.1.0
 simplejson

src/test-requirements.txt

@@ -5,4 +5,4 @@
 #
 # Functional Test Requirements (let Zaza's dependencies solve all dependencies here!)
 git+https://github.com/openstack-charmers/zaza.git#egg=zaza
-git+https://github.com/javacruft/zaza-openstack-tests.git@triliovault-testing#egg=zaza.openstack
+git+https://github.com/openstack-charmers/zaza-openstack-tests.git#egg=zaza.openstack

test-requirements.txt

@@ -1,7 +1,23 @@
-# Unit test requirements
-flake8>=2.2.4
+# This file is managed centrally by release-tools and should not be modified
+# within individual charm repos.  See the 'global' dir contents for available
+# choices of *requirements.txt files for OpenStack Charms:
+#     https://github.com/openstack-charmers/release-tools
+#
+# Lint and unit test requirements
+flake8>=2.2.4,<=2.4.1
 stestr>=2.2.0
+requests>=2.18.4
 charms.reactive
 mock>=1.2
+nose>=1.3.7
 coverage>=3.6
-git+https://github.com/openstack/charms.openstack#egg=charms.openstack
+git+https://github.com/openstack/charms.openstack.git#egg=charms.openstack
+#
+# Revisit for removal / mock improvement:
+netifaces        # vault
+psycopg2-binary  # vault
+tenacity         # vault
+pbr              # vault
+cryptography     # vault, keystone-saml-mellon
+lxml             # keystone-saml-mellon
+hvac             # vault, barbican-vault