What is the difference between k8s and docker
Difference: 1. k8s is an open source container cluster management system, while Docker is an open source application container engine; 2. k8s is a set of automated deployment tools that can manage docker containers. At the orchestration level, docker is a containerization technology and is at the container level.
The operating environment of this tutorial: linux7.3 system, docker-1.13.1 version, Dell G3 computer.
What is the difference between k8s and docker
The full name of k8s is kubernetes. It is a complete distributed system support platform with complete cluster management functions. Kubernetes also provides complete management tools, covering all aspects of development, deployment, testing, operation monitoring, etc. k8s is an open source container cluster management system that can realize automatic deployment, expansion of container clusters, maintenance and other functions.
Docker is an open source application container engine that allows developers to package their applications and dependency packages into portable images, then publish them to any popular Linux or Windows machine, and can also implement virtualization . The containers completely use the sandbox mechanism and have no interfaces with each other.
Docker is an open source application container engine that allows developers to package their applications and dependencies in a portable container and publish them to popular Linux machines, which can also be virtualized.
The main differences are as follows:
docker video tutorial"
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Four ways to exit Docker container: Use Ctrl D in the container terminal Enter exit command in the container terminal Use docker stop <container_name> Command Use docker kill <container_name> command in the host terminal (force exit)

Methods for copying files to external hosts in Docker: Use the docker cp command: Execute docker cp [Options] <Container Path> <Host Path>. Using data volumes: Create a directory on the host, and use the -v parameter to mount the directory into the container when creating the container to achieve bidirectional file synchronization.

You can query the Docker container name by following the steps: List all containers (docker ps). Filter the container list (using the grep command). Gets the container name (located in the "NAMES" column).

How to restart the Docker container: get the container ID (docker ps); stop the container (docker stop <container_id>); start the container (docker start <container_id>); verify that the restart is successful (docker ps). Other methods: Docker Compose (docker-compose restart) or Docker API (see Docker documentation).

The process of starting MySQL in Docker consists of the following steps: Pull the MySQL image to create and start the container, set the root user password, and map the port verification connection Create the database and the user grants all permissions to the database

The steps to update a Docker image are as follows: Pull the latest image tag New image Delete the old image for a specific tag (optional) Restart the container (if needed)

Create a container in Docker: 1. Pull the image: docker pull [mirror name] 2. Create a container: docker run [Options] [mirror name] [Command] 3. Start the container: docker start [Container name]

Docker container startup steps: Pull the container image: Run "docker pull [mirror name]". Create a container: Use "docker create [options] [mirror name] [commands and parameters]". Start the container: Execute "docker start [Container name or ID]". Check container status: Verify that the container is running with "docker ps".
