Since many of our applications will likely wish to use RabbitMQ for
private things like work queues, using separate vhosts is a good idea.
This sets up a single vhost to act as a fedmsg replacement (called
pubsub) and configures it for high availability.
The HA policy mirrors queues to all nodes in the cluster and enables
automatic synchronization with a batch size of 10K messages. Automatic
synchronization means that when a new node joins the cluster, all
messages from existing nodes are pushed to the new node, blocking queue
activity until mirroring is complete.
Signed-off-by: Jeremy Cline <jcline@xxxxxxxxxx>
---
roles/rabbitmq_cluster/files/enabled_plugins | 1 -
roles/rabbitmq_cluster/tasks/main.yml | 38 +++++++++++++++-----
2 files changed, 29 insertions(+), 10 deletions(-)
delete mode 100644 roles/rabbitmq_cluster/files/enabled_plugins
diff --git a/roles/rabbitmq_cluster/files/enabled_plugins b/roles/rabbitmq_cluster/files/enabled_plugins
deleted file mode 100644
index 6a9f28b93..000000000
--- a/roles/rabbitmq_cluster/files/enabled_plugins
+++ /dev/null
@@ -1 +0,0 @@
-[rabbitmq_management,rabbitmq_auth_mechanism_ssl].
diff --git a/roles/rabbitmq_cluster/tasks/main.yml b/roles/rabbitmq_cluster/tasks/main.yml
index 468cbc5ac..1781eb2c4 100644
--- a/roles/rabbitmq_cluster/tasks/main.yml
+++ b/roles/rabbitmq_cluster/tasks/main.yml
@@ -52,15 +52,6 @@
- rabbitmq_cluster
- config
-- name: enable plugins
- copy: src=enabled_plugins dest=/etc/rabbitmq/enabled_plugins owner=root group=root mode=0644
- with_items:
- - rabbitmq.config
- - enabled_plugins
- tags:
- - rabbitmq_cluster
- - config
-
- name: deploy configuration
template: src={{item}} dest=/etc/rabbitmq/{{item}} owner=root group=root mode=0644
with_items:
@@ -96,6 +87,13 @@
- rabbitmq_cluster
- config
+- name: Enable the HTTP management console and SSL authentication plugins
+ rabbitmq_plugin:
+ names: rabbitmq_management,rabbitmq_auth_mechanism_ssl
+ tags:
+ - rabbitmq_cluster
+ - config
+
- name: start rabbitmq
service: name=rabbitmq-server state=started enabled=yes
tags:
@@ -106,3 +104,25 @@
tags:
- rabbitmq_cluster
- config
+
+- name: Configure the pubsub virtual host
+ rabbitmq_vhost:
+ name: /pubsub
+ state: present
+ tags:
+ - rabbitmq_cluster
+ - config
+
+- name: Configure the HA policy for queues on the pubsub virtual
+ rabbitmq_policy:
+ name: HA
+ apply_to: queues
+ pattern: .*
+ tags:
+ ha-mode: all
+ ha-sync-mode: automatic # Auto sync queues to new cluster members
+ ha-sync-batch-size: 10000 # Larger is faster, but must finish in 1 net_ticktime
+ vhost: /pubsub
+ tags:
+ - rabbitmq_cluster
+ - config
--
2.19.0
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