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Technical Articles

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Docker

What does docker do?

The functions of docker are: 1. Better utilization of resources; 2. Customization for microservices; 3. Convenient transplantation between cloud service providers; 4. Convenient use of APIs; 5. Convenient technological innovation.

Jul 22, 2020 am 11:52 AM

docker 作用

Detailed introduction to the build command in docker

The build command in docker is used to build a Docker image based on the given Dockerfile and context. Command format: [docker build [OPTIONS] <PATH | URL | ->].

Jul 20, 2020 pm 05:38 PM

docker build

What does Docker do?

Docker is an open source application container engine that allows developers to package applications and dependency packages into a portable container, and then publish them to any popular Linux machine. It can also be virtualized. The container completely uses a sandbox mechanism. There will not be any interface between them.

Jul 18, 2020 am 11:47 AM

docker

What is the difference between stop and rm commands in docker?

Difference: The stop command is used to stop the container; and the rm command is a deletion command. If used directly, the corresponding container will be deleted. Note: docker stop first sends a SIGTERM signal to the container, allowing it to perform some operations within a certain period of time. If the container does not stop within this period, it sends a SIGKILL signal to forcibly kill the container.

Jul 17, 2020 pm 02:00 PM

docker stop rm

What is the difference between docker import and docker load?

Difference: The docker load command imports the image library storage file to the local image library; the docker import command imports a container snapshot into the local image library. Container snapshots will discard all history and metadata information, while image storage files will retain complete records and will be larger in size.

Jul 17, 2020 pm 01:42 PM

docker import load

Why is docker written in go language?

First of all, our current mainstream services all use Unix/Linux operating systems, and Golang relies very little on third parties. This is both a limitation and an advantage. In this case, Docker developed using Golang can basically run perfectly on most servers equipped with Unix/Linux operating systems.

Jul 17, 2020 pm 01:28 PM

docker go语言

What is the difference between tomcat and docker?

Difference: tomcat and docker are not the same type; docker is a container, and tomcat is a jsp application server. Tomcat can be installed on a physical machine, a virtual machine, or on Docker; so from this perspective, Docker can also be regarded as an ultra-lightweight virtual machine.

Jul 17, 2020 pm 01:22 PM

tomcat docker

Which command can copy data between the container and the host?

The docker cp command can copy data between the container and the host. Host to container: [docker cp /www 96f7f14e99ab:/www/]; container to host: [docker cp 96f7f14e99ab:/www /tmp/].

Jul 09, 2020 pm 05:14 PM

容器主机命令

Docker workflow introduction

Introduction to the docker workflow: 1. Everything starts with the Dockerfile; 2. Create the image of the container; 3. After obtaining the image of the container, use the registry to redistribute the container; 4. Run the container.

Jul 08, 2020 pm 05:42 PM

docker 工作流程

How to delete docker image

This article comes from the docker tutorial. It introduces the method of deleting the image in docker. It has certain reference value and I hope it can help everyone. How docker deletes images: 1. Stop all containers; 2. Delete the specified image by the image ID.

Jul 07, 2020 pm 05:49 PM

docker 镜像

What should I do if the docker service cannot start normally?

Solution to the problem that the docker service cannot start normally: 1. Execute the [service network restart] command to restart the network card; 2. Delete the docker installation package; 3. Execute the [sudo yum install docker-ee] command to reinstall docker.

Jul 04, 2020 pm 05:13 PM

docker

How to modify docker container port

Methods to modify the docker container port: 1. Stop the container; 2. Stop the docker service; 3. Modify the port of the container's hostconfig.json file; 4. Start the docker service; 5. Start the container.

Jul 03, 2020 pm 05:14 PM

docker 端口

How to understand docer?

This article comes from the docker tutorial. I share my understanding of docker with you. I hope it can help you. Docker can be said to be a terminal command line virtual machine. To be more precise, docker is a virtual environment.

Jul 02, 2020 pm 05:27 PM

docker

How to delete a container in docker

How to delete containers in docker: 1. Execute the command [docker stop $(docker ps -q)] to deactivate running containers; 2. Execute the command [docker rm $(docker ps -aq)] to delete all containers .

Jul 01, 2020 pm 05:33 PM

docker 容器