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 lxc bindings are already
provided in the distro repositories so we can simply use these in order
to keep the host as clean as possible.

Change-Id: Ia370f393b961b453ad60e5539f5027d19bf4281f
Implements: blueprint openstack-distribution-packages

defaults/main.yml

@@ -16,10 +16,9 @@
 # Validate certificates when downloading LXC templates
 lxc_hosts_validate_certs: yes
 
-# Set the package install state for distribution and pip packages
+# Set the package install state for distribution packages
 # Options are 'present' and 'latest'
 lxc_hosts_package_state: "latest"
-lxc_hosts_pip_package_state: "latest"
 
 # Mappings from Ansible reported architecture to distro release architecture
 lxc_architecture_mapping:
@@ -111,9 +110,6 @@ lxc_net6_nat: false
 lxc_kernel_options:
   - { key: 'fs.inotify.max_user_instances', value: 1024 }
 
-lxc_pip_packages:
-  - lxc-python2
-
 lxc_cache_sshd_configuration:
     - { regexp: "^PermitRootLogin",         line: "PermitRootLogin prohibit-password" }
     - { regexp: "^TCPKeepAlive",            line: "TCPKeepAlive yes" }

tasks/lxc_install.yml

@@ -18,17 +18,3 @@
     - install-apt
     - install-yum
     - install-zypper
-
-- name: Install pip packages
-  pip:
-    name: "{{ lxc_pip_packages }}"
-    state: "{{ lxc_hosts_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
-  tags:
-    - lxc-pip-packages

vars/redhat-7-host.yml

@@ -30,6 +30,7 @@ lxc_hosts_distro_packages:
   - lxc-devel
   - lxc-libs
   - lxc-templates
+  - python2-lxc
   - unzip
   - xz
 

vars/suse-42-host.yml

@@ -35,6 +35,7 @@ lxc_hosts_distro_packages:
   - libseccomp2
   - lxc
   - liblxc-devel
+  - python-lxc-python2
   - xz
 
 lxc_xz_bin: xz

vars/ubuntu-16.04-host.yml

@@ -38,6 +38,7 @@ lxc_hosts_distro_packages:
   - lxc-dev
   - lxc-templates
   - python-dev
+  - python-lxc
   - python3-lxc
   - systemd-container
   - pxz