How to Install Docker Swarm on Elementary OS Latest

Docker Swarm is a container orchestration tool that enables the management of containerized applications. In this tutorial, we will show you how to install Docker Swarm on Elementary OS Latest.

Prerequisites

Before we start, make sure that your system:

  • is running Elementary OS Latest
  • has internet access
  • has a user account with sudo privileges

Step 1: Install Docker

The first step in installing Docker Swarm is to install Docker itself. Follow these steps to install Docker:

  1. Open the terminal.

  2. Update the system package list:

    sudo apt-get update

  3. Install the necessary packages to allow apt to use a repository over HTTPS:

    sudo apt-get install apt-transport-https ca-certificates curl software-properties-common

  4. Add the Docker GPG key:

    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -

  5. Add the Docker repository:

    sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"

  6. Update the system package list again:

    sudo apt-get update

  7. Install Docker:

    sudo apt-get install docker-ce

  8. Verify that Docker is installed correctly:

    sudo docker run hello-world

Step 2: Initialize Docker Swarm

Once Docker is installed, we can initialize a Docker Swarm.

  1. Open the terminal.

  2. Enter the following command to initialize the Swarm:

    sudo docker swarm init

  3. Save the output of the above command somewhere safe. It includes the Docker Swarm join token.

Step 3: Add Nodes to Docker Swarm

Now that you have initialized your Docker Swarm, you can add more nodes to it.

  1. Open the terminal on the node you want to add.

  2. Enter the following command, replacing the and with the appropriate values:

    sudo docker swarm join --token <DOCKER_TOKEN> <SWARM_MANAGER_IP>:2377

  3. Once the command is executed successfully, the node will be added to the Docker Swarm.

Conclusion

That’s it! You have successfully installed and initialized Docker Swarm on Elementary OS Latest. You can now use Docker Swarm to manage containerized applications.