openqa-onebox: tweak db host stuff

Using the machine's own hostname works for the ansible delegate
stuff but doesn't work for openQA itself (if you try and access
the DB by hostname like this, postgres denies access; you have
to use 'localhost' for postgres to allow it). Using 'localhost'
works for postgres but doesn't do the right thing for delegation.
Let's use 'localhost' and split the two play steps into
delegated and non-delegated versions.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

inventory/group_vars/openqa_onebox_test

@@ -28,6 +28,7 @@ openqa_compose_arches: x86_64
 openqa_dbname: openqa-onebox
 openqa_dbpassword: "{{ stg_openqa_dbpassword }}"
 openqa_dbuser: openqastg
+openqa_dbhost: localhost
 openqa_env: staging
 openqa_env_prefix: stg-
 # this is because openqa staging isn't really a staging host

inventory/host_vars/openqa-x86-worker05.iad2.fedoraproject.org

@@ -68,7 +68,3 @@ sudoers: "{{ private }}/files/sudo/qavirt-sudoers"
 # $ENV{QEMUPORT} = ($options{instance}) * 10 + 20002;
 # so for worker 1 it's 20012, for worker 2 it's 20022, etc etc
 tcp_ports: ['20013', '20023', '20033', '20043', '20053', '20063', '20073', '20083', '20093', '20103', '20113', '20123', '20133', '20143', '20153', '20163', '20173', '20183', '20193', '20203', '20213', '20223', '20233', '20243', '20253', '20263', '20273', '20283', '20293', '20303']
-
-# ONLY FOR WHEN THIS IS ONEBOX_TEST. we make it its own pgsql server.
-# I hope delegating to self works...
-openqa_dbhost: openqa-x86-worker05.iad2.fedoraproject.org

roles/openqa/server/tasks/main.yml

@@ -260,19 +260,31 @@
   tags:
   - config
 
-- name: Create database
+- name: Create database (delegate)
   delegate_to: "{{ openqa_dbhost }}"
   become_user: postgres
   become: true
   postgresql_db: db={{ openqa_dbname }}
-  when: "openqa_dbhost is defined"
+  when: "openqa_dbhost is defined and openqa_dbhost != 'localhost'"
 
-- name: Ensure db user has access to database
+- name: Ensure db user has access to database (delegate)
   delegate_to: "{{ openqa_dbhost }}"
   become_user: postgres
   become: true
   postgresql_user: db={{ openqa_dbname }} user={{ openqa_dbuser }} password={{ openqa_dbpassword }} role_attr_flags=NOSUPERUSER
-  when: "openqa_dbhost is defined"
+  when: "openqa_dbhost is defined and openqa_dbhost != 'localhost'"
+
+- name: Create database (non-delegate)
+  become_user: postgres
+  become: true
+  postgresql_db: db={{ openqa_dbname }}
+  when: "openqa_dbhost is defined and openqa_dbhost == 'localhost'"
+
+- name: Ensure db user has access to database (non-delegate)
+  become_user: postgres
+  become: true
+  postgresql_user: db={{ openqa_dbname }} user={{ openqa_dbuser }} password={{ openqa_dbpassword }} role_attr_flags=NOSUPERUSER
+  when: "openqa_dbhost is defined and openqa_dbhost == 'localhost'"
 
 - name: Database config
   template: src=database.ini.pgsql.j2 dest=/etc/openqa/database.ini owner=geekotest group=root mode=0640