koji: Add playbooks for Koji

The `koji.yml` playbook can be used to deploy an entire Koji ecosystem.
It is composed of three smaller playbooks:

* `koji-hub.yml`: Deploys the Koji hub, GC, and Kojira
* `koji-web.yml`: Deploys the Koji Web GUI
* `koji-builder.yml`: Deploys the Koji builder

hosts

@@ -36,6 +36,16 @@ git0.pyrocufflink.blue
 [jenkins-slave]
 cm0.pyrocufflink.blue
 
+[koji:children]
+koji-builder
+koji-hub
+
+[koji-builder]
+
+[koji-hub]
+
+[koji-web]
+
 [named-server:children]
 pyrocufflink-dns
 

koji-builder.yml

@@ -0,0 +1,4 @@
+- hosts: koji-builder
+  roles:
+  - ssh-hostkeys
+  - koji-builder

koji-hub.yml

@@ -0,0 +1,9 @@
+- hosts: koji-hub
+  roles:
+  - postgresql-server
+  - apache
+  - koji-hub
+  - cronie
+  - koji-gc
+  - kojira
+  - koji-client

koji-web.yml

@@ -0,0 +1,4 @@
+- hosts: koji-web
+  roles:
+  - apache
+  - koji-web

koji.yml

@@ -0,0 +1,8 @@
+- import_playbook: koji-hub.yml
+- import_playbook: koji-web.yml
+# For new installations, it is not safe to start kojid immediately, as the
+# `koji add-host` command needs to be run first to avoid the "User n is not a
+# host" error. Until a `koji_user` module exists to automatically handle this,
+# it is best to simply let the user handle it and explicitly apply the
+# `koji-builder.yml` platbook later
+#- import_playbook: koji-builder.yml