Docker Swarm is a clustering and orchestration tool used to manage Docker containers at scale. In this tutorial, we will be installing Docker Swarm on Linux Mint Latest.
Before you start, ensure you have the following installed on your system:
The first step is to join an existing Docker Swarm. To join a Swarm, run the following command:
$ sudo docker swarm join --token <SWARM_TOKEN> <SWARM_MANAGER_IP>:<PORT>
Replace <SWARM_TOKEN> and <SWARM_MANAGER_IP>:<PORT> with the actual Swarm token and Swarm manager IP address and port.
If you don't have a Swarm yet or want to create a new one, you can create it by running the following command:
$ sudo docker swarm init --advertise-addr <NODE_IP_ADDRESS>
Replace <NODE_IP_ADDRESS> with the actual IP address of the node.
After running the command, you will see the output as shown below:
Swarm initialized: current node (oo9g9zirlcnn1dn7k1nxr23r0) is now a manager.
To add a worker to this swarm, run the following command:
docker swarm join --token SWMTKN-1-27fufd01efczow7kvhvqz3l7e9rasdcsi923xmnkhdd0tullbh-7so01ctc0u2fwmtgev5gz1jj2 192.168.0.104:2377
To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.
Once you have created or joined a Swarm, you can configure it according to your requirements. You can set various parameters such as the number of replicas, the placement of containers, and more.
To configure your Swarm, run the following commands:
$ sudo docker config create <CONFIG_NAME> <CONFIG_FILE>
$ sudo docker service create --name <SERVICE_NAME> --config source=<CONFIG_NAME> <IMAGE>
Replace <CONFIG_NAME>, <CONFIG_FILE>, <SERVICE_NAME>, and <IMAGE> with the actual values.
After your Swarm is configured, you can deploy a service to it. To deploy a service, run the following command:
$ sudo docker service create --replicas 3 --name <SERVICE_NAME> <IMAGE>
Replace <SERVICE_NAME> and <IMAGE> with the actual values.
Docker Swarm is a powerful tool that enables you to manage Docker containers at scale. In this tutorial, we have shown you how to install and configure Docker Swarm on Linux Mint Latest. With Docker Swarm, you can easily deploy and manage containerized applications across a cluster of nodes.
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