rabbitmq-in-ubuntu

------------------------ Master & Worker Node -------------------------

sudo apt update && sudo apt install rabbitmq-server -y

sudo rabbitmq-plugins enable rabbitmq_management

sudo rabbitmqctl add_user admin your_password

sudo rabbitmqctl set_user_tags admin administrator
sudo systemctl restart rabbitmq-server



-------------------- Master Node ------------------

sudo cat /var/lib/rabbitmq/.erlang.cookie
sudo systemctl stop rabbitmq-server

--------------------- Worker Nodes ------------------------

sudo nano /var/lib/rabbitmq/.erlang.cookie
-----> remove old cookie and add from master node

sudo chown rabbitmq:rabbitmq /var/lib/rabbitmq/.erlang.cookie
sudo chmod 400 /var/lib/rabbitmq/.erlang.cookie
sudo systemctl start rabbitmq-server

sudo rabbitmqctl stop_app
sudo rabbitmqctl join_cluster rabbit@master_node_hostname
sudo rabbitmqctl start_app



-----> Verify the cluster status by running the following command on either the master or worker node:

sudo rabbitmqctl cluster_status


15672