Get install path for ironic services

Depending on the distribution, pip can install the ironic
services in /usr/bin or in /usr/local/bin. Find the correct
path so we can supply it to the templates for the systemd
and upstart files.

Change-Id: I058e6fdbe7d89249b4c9818a37ee22dafdd5d594

playbooks/roles/bifrost-ironic-install/tasks/main.yml

@@ -149,11 +149,14 @@
 - name: "Creating authorized_keys file for ironic user"
   command: cp -p /home/ironic/.ssh/id_rsa.pub /home/ironic/.ssh/authorized_keys
   when: testing == true
+- name: "Get ironic-api & ironic-conductor install location"
+  shell: echo $(dirname $(which ironic-api))
+  register: ironic_install_prefix
 - name: "Placing services"
   template: src={{ init_template }} dest={{ init_dest_dir }}{{item.service_name}}{{ init_ext }} owner=root group=root
   with_items:
-    - { service_name: 'ironic-api', username: 'ironic', args: '--config-file /etc/ironic/ironic.conf'}
-    - { service_name: 'ironic-conductor', username: 'ironic', args: '--config-file /etc/ironic/ironic.conf'}
+    - { service_path: "{{ ironic_install_prefix.stdout }}", service_name: 'ironic-api', username: 'ironic', args: '--config-file /etc/ironic/ironic.conf'}
+    - { service_path: "{{ ironic_install_prefix.stdout }}", service_name: 'ironic-conductor', username: 'ironic', args: '--config-file /etc/ironic/ironic.conf'}
 - name: "Reload systemd configuration"
   command: systemctl daemon-reload
   when: init_template == 'systemd_template.j2'

playbooks/roles/bifrost-ironic-install/templates/systemd_template.j2

@@ -2,7 +2,7 @@
 Description={{ item.service_name }} service
 
 [Service]
-ExecStart=/usr/bin/{{ item.service_name }} {{ item.args }}
+ExecStart={{ item.service_path }}/{{ item.service_name }} {{ item.args }}
 User={{ item.username }}
 
 [Install]

playbooks/roles/bifrost-ironic-install/templates/upstart_template.j2

@@ -7,4 +7,4 @@ end script
 respawn
 respawn limit 2 10
 
-exec start-stop-daemon --start -c {{ item.username }} --exec /usr/local/bin/{{ item.service_name }} -- {{ item.args }}
+exec start-stop-daemon --start -c {{ item.username }} --exec {{ item.service_path }}/{{ item.service_name }} -- {{ item.args }}