Add iscsid/tgtd specific parameters to Kolla infrastructure

This partially implements iscsi and lvm2 support for cinder
in Kolla. Add integration with Kolla infrastructure.

Change-Id: I5b7d59163518080f38aec0c00617440de0763f1d
Implements: blueprint iscsi-lvm2-docker

ansible/group_vars/all.yml

@@ -79,6 +79,8 @@ tunnel_interface: "{{ network_interface }}"
 neutron_plugin_agent: "openvswitch"
 
 # The default ports used by each service.
+iscsi_port: "3260"
+
 mariadb_port: "3306"
 mariadb_wsrep_port: "4567"
 mariadb_ist_port: "4568"
@@ -182,6 +184,7 @@ enable_horizon: "yes"
 enable_swift: "no"
 enable_murano: "no"
 enable_ironic: "no"
+enable_iscsi: "no"
 enable_magnum: "no"
 enable_mistral: "no"
 enable_central_logging: "no"

ansible/inventory/all-in-one

@@ -146,6 +146,13 @@ cinder
 [cinder-volume:children]
 storage
 
+# iSCSI
+[iscsd:children]
+storage
+
+[tgtd:children]
+storage
+
 # Manila
 [manila-api:children]
 manila

ansible/roles/prechecks/tasks/port_checks.yml

@@ -119,14 +119,6 @@
     state: stopped
   when: inventory_hostname in groups['haproxy']
 
-- name: Checking free port for iSCSI Target
-  wait_for:
-    host: "{{ hostvars[inventory_hostname]['ansible_' + storage_interface]['ipv4']['address'] }}"
-    port: "3260"
-    connect_timeout: 1
-    state: stopped
-  when: inventory_hostname in groups['cinder-volume']
-
 - name: Checking free port for Keystone Admin
   wait_for:
     host: "{{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}"
@@ -159,6 +151,14 @@
     state: stopped
   when: inventory_hostname in groups['haproxy']
 
+- name: Checking free port for iscsi
+  wait_for:
+    host: "{{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}"
+    port: "{{ iscsi_port }}"
+    connect_timeout: 1
+    state: stopped
+  when: inventory_hostname in groups['tgtd']
+
 - name: Checking free port for MariaDB
   wait_for:
     host: "{{ hostvars[inventory_hostname]['ansible_' + api_interface]['ipv4']['address'] }}"

ansible/site.yml

@@ -20,6 +20,8 @@
     - haproxy
     - keystone
     - mariadb
+    - iscsid
+    - tgtd
     - murano-api
     - neutron-server
     - nova-api
@@ -50,6 +52,14 @@
         tags: mariadb,
         when: enable_mariadb | bool }
 
+- hosts:
+    - iscsid
+    - tgtd
+  roles:
+    - { role: iscsi,
+        tags: iscsi,
+        when: enable_iscsi | bool }
+
 - hosts: rabbitmq
   roles:
     - { role: rabbitmq,

kolla/common/config.py

@@ -31,7 +31,7 @@ _PROFILE_OPTS = [
                 help='Infra images'),
     cfg.ListOpt('main',
                 default=['cinder', 'ceilometer', 'glance', 'heat',
-                         'horizon', 'keystone', 'neutron', 'nova',
+                         'horizon', 'iscsi', 'keystone', 'neutron', 'nova',
                          'swift'],
                 help='Main images'),
     cfg.ListOpt('aux',