Avoid mixing pip and distribution packages.

The hosts may end up in a rather messed up state when mixing
distribution and pip packages. The python MySQL bindings are already
provided in the distro repositories so we can simply use these in order
to keep the host as clean as possible.

Implements: blueprint openstack-distribution-packages
Change-Id: Ic8c7f642378536d79d763625451ec267c2a108fd

defaults/main.yml

@@ -118,12 +118,6 @@ galera_xtrabackup_compression: "{{ (ansible_architecture == 'x86_64') or (ansibl
 # xtrabackup parallel/compression/sync threads
 galera_xtrabackup_threads: 4
 
-galera_pip_packages:
-  - MySQL-python
-  - pycrypto
-
-galera_pip_package_state: "latest"
-
 # Galera slow/unindexed query logging
 galera_slow_query_logging: 0
 galera_unindexed_query_logging: 0

tasks/galera_install.yml

@@ -40,18 +40,6 @@
 
 - include_tasks: "galera_install_{{ ansible_pkg_mgr }}.yml"
 
-- name: Install pip packages
-  pip:
-    name: "{{ galera_pip_packages }}"
-    state: "{{ galera_pip_package_state }}"
-    extra_args: >-
-      {{ (pip_install_upper_constraints is defined) | ternary('--constraint ' + pip_install_upper_constraints | default(''),'') }}
-      {{ pip_install_options | default('') }}
-  register: install_packages
-  until: install_packages|success
-  retries: 5
-  delay: 2
-
 - name: Record galera has been deployed
   ini_file:
     dest: "/etc/ansible/facts.d/openstack_ansible.fact"

vars/redhat-7.yml

@@ -33,6 +33,8 @@ galera_server_required_distro_packages:
   - libgcrypt
   - MariaDB-client
   - MariaDB-devel
+  - MySQL-python # needed by mysql_user
+  - python-crypto # needed for ssl
   - xinetd
 
 galera_etc_conf_file: "/etc/mysql/my.cnf"

vars/suse-42.yml

@@ -30,6 +30,8 @@ galera_server_required_distro_packages:
   - libgcrypt-devel
   - MariaDB-client
   - MariaDB-devel
+  - python-MySQL-python # needed by mysql_user
+  - python2-pycrypto # needed for ssl
   - xinetd
 
 galera_etc_conf_file: "/etc/mysql/my.cnf"

vars/ubuntu-16.04.yml

@@ -39,6 +39,8 @@ galera_server_required_distro_packages:
   - libgcc1
   - libgcrypt20
   - libstdc++6
+  - python-mysqldb # needed by mysql_user
+  - python-crypto # needed for ssl
   - python-software-properties
   - software-properties-common
   - xinetd