Add an element installing tuskar API service

This should make it easier to deploy tuskar in the undercloud
(basically, one will just add 'tuskar' the the list of elements
when building a disk image for the undercloud node).

This depends on Ib66e688bd7500f03dea7d4282607cd51078e9a51 to be
merged into tripleo-heat-templates to work properly.

Change-Id: I1d16e535ae50a06a8792e1613bb6b6c4647bf128

elements/boot-stack/bin/reset-db

@@ -21,6 +21,11 @@ if [ -x "$venvs/ironic/bin/ironic-dbsync" ] ; then
     $venvs/ironic/bin/ironic-dbsync --config-file /etc/ironic/ironic.conf
 fi
 
+if [ -x "$venvs/tuskar/bin/tuskar-dbsync" ] ; then
+    os-db-create tuskar tuskar $db_pass
+    $venvs/tuskar/bin/tuskar-dbsync --config-file /etc/tuskar/tuskar.conf
+fi
+
 os-db-create nova nova $db_pass
 $venvs/nova/bin/nova-manage db sync
 

elements/tuskar/README.md

@@ -0,0 +1,20 @@
+Install tuskar service from git.
+
+Configuration
+-------------
+
+Tuskar API requires the following keys to be set via Heat Metadata.
+
+tuskar:
+    overcloud-admin-password:
+      - the password of the overcloud admin user. Use
+        OvercloudAdminPassword template parameter to
+        override this option.
+    db: "mysql://tuskar:unset@localhost/tuskar?charset=utf8"
+      - the connection string for a DB to be used by tuskar-api.
+    username:
+      - the name of the user to deploy the overcloud on behalf of
+    password:
+      - the password of the user to deploy the overcloud on behalf of
+    tenant_name:
+      - the tenant name of the user to deploy the overcloud on behalf of

elements/tuskar/element-deps

@@ -0,0 +1,4 @@
+os-svc-install
+os-refresh-config
+os-apply-config
+source-repositories

elements/tuskar/install.d/100-tuskar-api

@@ -0,0 +1,10 @@
+#!/bin/bash
+set -eux
+
+install-packages swig
+os-svc-install -n tuskar -u tuskar -r /opt/stack/tuskar
+
+install -d -m 0750 -o tuskar -g tuskar /etc/tuskar
+cp -a /opt/stack/tuskar/etc/tuskar/policy.json /etc/tuskar
+
+os-svc-daemon tuskar-api tuskar tuskar-api "--config-dir /etc/tuskar"

elements/tuskar/os-config-applier/etc/tuskar/nova_overcloud_config.yml

@@ -0,0 +1,5 @@
+keystone_url: "http://{{keystone.host}}:5000/v2.0/"
+nova_username: "admin"
+nova_tenantname: "admin"
+# NOTE(rpodolyaka): limitation of tuskar-api, see https://bugs.launchpad.net/tuskar/+bug/1235236
+nova_password: "{{tuskar.overcloud-admin-passsword}}"

elements/tuskar/os-config-applier/etc/tuskar/tuskar.conf

@@ -0,0 +1,8 @@
+[database]
+connection={{tuskar.db}}
+
+[heat_keystone]
+username = {{tuskar.user}}
+tenant_name = {{tuskar.tenant_name}}
+password = {{tuskar.password}}
+auth_url = http://{{keystone.host}}:35357/v2.0

elements/tuskar/os-refresh-config/post-configure.d/100-tuskar-api

@@ -0,0 +1,3 @@
+#!/bin/bash
+set -eux
+service tuskar-api restart

elements/tuskar/source-repository-tuskar

@@ -0,0 +1 @@
+tuskar git /opt/stack/tuskar https://git.openstack.org/cgit/openstack/tuskar