The Vagrantfile sets up two machines rabbit1 and rabbit2 based on Ubuntu 14.04 that can be used in a RabbitMQ cluster on a private network. The addresses are assigned as follows:
rabbit1at address192.168.33.10rabbit2is at address192.168.33.11- The host machine is at
192.168.33.1(from inside either VM)
After the two VMs start up, you should be to create the cluster. On rabbit2, run the following:
sudo rabbitmqctl stop_app
sudo rabbitmqctl join_cluster rabbit@rabbit1
sudo rabbitmqctl start_app
Then you should be able to check the cluster status and see both nodes rabbit@rabbit1 and rabbit@rabbit2 as follows:
sudo rabbitmqctl cluster_status
[{nodes,[{disc,[rabbit@rabbit1,rabbit@rabbit2]}]},
{running_nodes,[rabbit@rabbit2,rabbit@rabbit1]},
{partitions,[]}]
...done.
On each VM, the rabbit node is available on port 5672.
From the host machine, you should be able to run python send_repeat.py 192.168.33.10 5672 to send a message every five seconds to the hello queue in your cluster. Inside either VM, you should see the queue size increase while this script is running
sudo rabbitmqctl list_queues
Listing queues ...
hello 4
...done.
To set an HA policy for the hello queue:
sudo rabbitmqctl set_policy ha-policy "^hello" '{"ha-mode": "all"}'
To create a network partition in your cluster, use iptables to disable communication to the other machines ip. From within rabbit2, do the following to block rabbit1:
sudo iptables -A INPUT -s 192.168.33.10 -j DROP
To see all your iptable rules:
sudo iptables -L
To clear all your iptable rules:
sudo iptables -F
To delete a single iptable rule:
sudo iptables -D <chain> <index>
where <index> represents the index of the rule in the given chain's list.