Add checksum script for CentOS AIO.

Add checksum script for CentOS and load it like other ifup-post script are loaded.

Change-Id: Id6dcab2d80232f40222ae324ec8bbdc73c5eaf4d

tasks/neutron_post_install.yml

@@ -122,7 +122,7 @@
 - name: Drop metadata iptables checksum fix
   copy:
     src: "post-up-metadata-checksum"
-    dest: "/etc/network/if-up.d/post-up-metadata-checksum"
+    dest: "{{ neutron_checksum_script }}"
     owner: "root"
     group: "root"
     mode: "0755"
@@ -130,8 +130,18 @@
     - neutron_metadata_checksum_fix | bool
     - neutron_services['neutron-linuxbridge-agent']['group'] in group_names
 
-- name: Run metadata iptables checksum fix
-  command: /etc/network/if-up.d/post-up-metadata-checksum
+- name: Ensure the postup/postdown scripts are loaded (RedHat)
+  lineinfile:
+    dest: "/etc/sysconfig/network-scripts/ifup-post"
+    line: ". {{ neutron_checksum_script }}"
+    insertbefore: "^exit 0"
+  when:
+    - neutron_metadata_checksum_fix | bool
+    - neutron_services['neutron-linuxbridge-agent']['group'] in group_names
+    - ansible_pkg_mgr == 'yum'
+
+- name: Run metadata iptables checksum fix
+  command: "{{ neutron_checksum_script }}"
   when:
     - neutron_metadata_checksum_fix | bool
     - neutron_services['neutron-linuxbridge-agent']['group'] in group_names

vars/redhat-7.yml

@@ -14,6 +14,7 @@
 # limitations under the License.
 
 rdo_package: "https://rdoproject.org/repos/rdo-release.rpm"
+neutron_checksum_script: /etc/sysconfig/network-scripts/ifup-post-metadata-checksum
 
 neutron_ovs_distro_packages:
   - openvswitch

vars/ubuntu-16.04.yml

@@ -17,6 +17,7 @@
 uca_openstack_release: newton
 uca_repo_dist: "{{ ansible_lsb.codename }}-updates/{{ uca_openstack_release }}"
 uca_repo: "deb {{ uca_apt_repo_url }} {{ uca_repo_dist }} main"
+neutron_checksum_script: /etc/network/if-up.d/post-up-metadata-checksum
 
 neutron_ovs_distro_packages:
   - openvswitch-common