A Kubernetes cluster consists of a set of worker machines, called nodes, that run containerized applications. Every cluster has at least one worker node. The worker node(s) host the Pods that are the components of the application workload. The control plane manages the worker nodes and the Pods in the cluster. In production environments, the control plane usually runs across multiple computers and a cluster usually runs multiple nodes, providing fault-tolerance and high availability. This document outlines the various components you need to have for

Kubernetes is an open-source platform that enables automated deployment, scaling, and management of containers and containerized applications. It can be used on-premises or in the cloud. Common use cases of k8s include hybrid and multi clouds, creation of vendor-agnostic serverless platforms, or deployment of self-healing and scaling services. While k8s is not the only orchestration platform available, it is the most supported. Docker Swarm and OpenShift are both alternative options. 10 Kubernetes Features to Know Once you’ve got a grasp

Multiple isolated environments on a single hostCompose uses a project name to isolate environments from each other. You can make use of this project name in several different contexts: on a dev host, to create multiple copies of a single environment, such as when you want to run a stable copy for each feature branch of a projecton a CI server, to keep builds from interfering with each other, you can set the project name to a unique build numberon

The docker update command dynamically updates container configuration. You can use this command to prevent containers from consuming too many resources from their Docker host. With a single command, you can place limits on a single container or on many. “docker wait” is equivalent to “docker container wait”. Block until one or more containers stop, then print their exit codes means this command would to wait until Docker container stops and print a exit code.

The docker pause command suspends all processes in the specified containers. On Linux, this uses the cgroups freezer. Traditionally, when suspending a process the SIGSTOP signal is used, which is observable by the process being suspended The docker stop command. The main process inside the container will receive SIGTERM, and after a grace period, SIGKILL. SIGTERM is the termination signal. The default behavior is to terminate the process, but it also can be caught or ignored. The intention is to

What is Docker? Docker is a tool and an open platform for developing, shipping, and running applications Docker enables you to separate your applications from your infrastructure so you can deliver software quickly.With Docker, you can manage your infrastructure in the same ways you manage your applications. What is Container? A Docker container is an open source software development platform. Its main benefit is to package applications in containers,allowing them to be portable to any system running a Linux or