Learn everything about Docker Swarm in this comprehensive blog. It is a container orchestration tool used to create and manage a cluster of Docker nodes.
A Docker container is a running instance of a Docker image. However, unlike in traditional virtualization with a type 1 or type 2 hypervisor, a Docker container runs on the kernel of the host operating system. Within a Docker image there is no separate operating system, as illustrated in Fig...
Docker terms and technologies To effectively use Docker, familiarity with its key terminologies and associated tools is essential. Docker key terms Dockerfile A text document that contains all the commands a user could call on the command line to assemble an image. It’s the blueprint for crea...
Get an in-depth overview of the Docker platform including what it can be used for, the architecture it employs, and its underlying technology.
Docker compose is a tool for defining and running multi-container Docker applications using a YAML file to configure the application's services, networks, and volumes.
Docker host: A Docker host is a physical or virtual machine running Linux (or another Docker-Engine compatible OS). Docker Engine:Docker engine is a client/server application consisting of the Docker daemon, a Docker API that interacts with the daemon, and a command-line interface (CLI) that...
By default, volumesaren'tautomatically removed when you tear down a Compose stack. The idea is that you might want the data back if you start the stack again. If you do want to remove the volumes, add the--volumesflag when running thedocker compose downcommand: ...
A command line interface (CLI)client REST API is used for communication between the CLI client and Docker Daemon As per the above image, in a Linux Operating system, there is a Docker client which can be accessed from the terminal and a Docker Host which runs the Docker Daemon. We build...
一,使用Docker镜像 ① 获取镜像 1, 命令: docker pull NAME[:TAG]。(描述镜像需要使用名称+标签) docker pull ubuntu:18.04 2, 如果不指定标签也就是TAG,那会默认选择最新版本的镜像 3, 非官方仓库下载,需要制定完整仓库名称 docker pull hub.c.163.com/public/ubuntu:18.04 ...
Dotted line in orange: The Docker daemon executes the docker build command received from the Docker client to build an image based on Dockerfiles and stores the image on the local Docker host machine. Dotted line in blue: The Docker daemon executes the docker pull command received from the Do...