Do you know why Docker Swarm is becoming popular, if not then I will answer your this question and also inform you about its working process. What is Docker Swarm? Docker Swarm is a cluster of one or more computers running the docker application. It is also acting as scheduling tool for Docker containers. It comes into play when container is running in service mode. What the service is? A service is a description of task or the state, it is not the actual task that needs to be done. Only because of this it is possible to assign it to another node. How it is working? The working of Swarm is based on nodes. There are two types of nodes: Manager node: Maintains cluster management tasks Worker node: Receives and executes tasks given by manager node. In Swarm, containers are executed using services not tasks. In Swarm, every worker node has an agent that reports the state of node's task to manager node. When manager node receives any request for any task it se...