relvalconsumer: add mechanism for disabling services

This is because authing to the wiki on staging is broken right
now, so I want a clean mechanism for turning off all services
that write to the wiki. See
https://pagure.io/fedora-infrastructure/issue/8381

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

inventory/group_vars/relvalconsumer_test

@@ -1,2 +1,8 @@
 relvalconsumer_prod: false
 relvalconsumer_env_suffix: .test
+
+# FIXME: disable consumers that write to wiki until auth key
+# is working again:
+# https://pagure.io/fedora-infrastructure/issue/8381
+relvalconsumer_disabled: true
+relvalamiconsumer_disabled: true

roles/relvalconsumer/defaults/main.yml

@@ -7,4 +7,6 @@ relvalconsumer_amqp_cert: /etc/fedora-messaging/fedora-cert.pem
 relvalconsumer_amqp_routing_keys: ["org.fedoraproject.prod.pungi.compose.status.change"]
 relvalconsumer_amqp_mailfrom: "root@{{ external_hostname }}"
 relvalconsumer_amqp_smtp: localhost
+relvalconsumer_disabled: false
 relvalamiconsumer_amqp_routing_keys: ["org.fedoraproject.prod.fedimg.image.publish"]
+relvalamiconsumer_disabled: false

roles/relvalconsumer/tasks/main.yml

@@ -69,11 +69,19 @@
 ##      string - Hostname of SMTP server to use for sending error
 ##               emails. Defaults to 'localhost'. Only relevant if
 ##               relvalconsumer_amqp_mailto is set.
+# - relvalconsumer_disabled
+##        bool - If true, don't enable the consumer service. This is
+##               mainly just for temporary use if something's broken.
+##     default - False
 # - relvalamiconsumer_amqp_routing_keys
 ##        list - List of routing key names for the event AMI page
 ##               updater to subscribe to. The role default for this
 ##               is the appropriate keys for the Fedora production
 ##               broker.
+# - relvalamiconsumer_disabled
+##        bool - If true, don't enable the consumer service. This is
+##               mainly just for temporary use if something's broken.
+##     default - False
 #
 # Optional vars
 # - relvalconsumer_amqp_mailto
@@ -221,6 +229,8 @@
 
 - name: Enable and start fedora-messaging relvalconsumer
   service: name=fm-consumer@relvalconsumer enabled=yes state=started
+  when: not relvalconsumer_disabled|bool
 
 - name: Enable and start fedora-messaging relvalamiconsumer
   service: name=fm-consumer@relvalamiconsumer enabled=yes state=started
+  when: not relvalamiconsumer_disabled|bool