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openfire-docker-compose/cluster_with_clustered_mariadb
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Dan Caseley e1a362fe6c MariaDB POC 
This demonstrates a basic MariaDB Galera cluster. When either node drops, the server continues running. Due to env vars and config, relaunching either node isn't possible with this setup. I'm no DBA, so not attempting to fix it.
 		2022-11-20 20:22:39 +00:00
..
nginx MariaDB POC 2022-11-20 20:22:39 +00:00
plugins MariaDB POC 2022-11-20 20:22:39 +00:00
sql MariaDB POC 2022-11-20 20:22:39 +00:00
xmpp MariaDB POC 2022-11-20 20:22:39 +00:00
README.md MariaDB POC 2022-11-20 20:22:39 +00:00
docker-compose-clustered.yml MariaDB POC 2022-11-20 20:22:39 +00:00
start.sh MariaDB POC 2022-11-20 20:22:39 +00:00

README.md

Clustered configuration

Running ./start.sh -c will perform some cleanup then start the containers in a clustered configuration. When running, the system looks like this:

                   +--------------------------------------------------+
                   |           172.60.0.99                            |
                   |       +----------------+                         |
                   |       |                |+--------------+         |
(XMPP-C2S)  55222 -|-------|  Load Balancer |+-------+      |         |
(BOSH)      57070 -|       |                |        |      |         |
(BOSHS)     57443 -|       +----------------+        |      |         |
                   |           |                     |  172.60.0.30   |
                   |           |                     |  +--------+    |
                   |           |          +=============+        |    |- 5223 (XMPP-C2S)
                   |           |          |          |  | XMPP 3 |----|- 5263 (XMPP-S2S)
                   |           |          |          |  |        |    |- 9093 (HTTP-Admin)
                   |           |          |          |  +------+-+    |- 7073 (BOSH)
                   |           |          |          |         |      |
                   |      172.60.0.10     |     172.60.0.20    |      |
                   |      +--------+      |     +--------+     |      |
(XMPP-C2S)   5221 -|      |        +======+     |        |=====+      |- 5222 (XMPP-C2S)
(XMPP-S2S)   5261 -|------| XMPP 1 +============+ XMPP 2 |            |- 5262 (XMPP-S2S)
(HTTP-Admin) 9091 -|      |        |            |        |------------|- 9092 (HTTP-Admin)
(BOSH)       7071 -|      +----+---+            +----+---+            |- 7072 (BOSH)
                   |           |                     |                |
                   |           |                     |                |
                   |       +---+--+                  |                |
                   |       |      |                  |                |
(Database)   5432 -|-------|  DB  +------------------+                |
                   |       |      |                                   |
                   |       +------+                                   |
                   |      172.60.0.11                                 |
                   |                                                  |
                   +----------------172.60.0.0/24---------------------+

Note that the load balancer is configured to be less flappy, with the flappiness controlled by the nginx config, simulating simple round-robin DNS load balancing. Ports from individual servers are exposed and can be hit directly.

Openfire is configured with the following XMPP domain:

  • xmpp.localhost.example

Openfire is configured with the following hostnames:

  • xmpp1.localhost.example
  • xmpp2.localhost.example
  • xmpp3.localhost.example

The following users are configured:

  • user1 password
  • user2 password

The following MUC rooms are configured:

  • muc1
  • muc2

Network

The Docker compose file defines a custom bridge network with a single subnet of 172.60.0.0/24 for the clustered configuration.

Removing a node from the network

To remove a node from the network run the following command:

docker network disconnect NETWORK-NAME CONTAINER-NAME

For example:

docker network disconnect openfire-testing_openfire-federated-net openfire-testing_xmpp1_1

Adding a node to the network

To add a node to the network fun the following command:

docker network connect NETWORK-NAME CONTAINER-NAME

For example:

docker network connect openfire-testing_openfire-federated-net openfire-testing_xmpp1_1