The method for docker to set HTTP proxy is as follows:
1. Comment out the nameserver configuration
[root@nvwa ~]# cat /etc/resolv.conf # Generated by NetworkManager search apa.gad.schneider-electric.com nameserver xx.xx.xx.xx nameserver xx.xx.xx.xx
and change it to:
[root@nvwa ~]# cat /etc/resolv.conf # Generated by NetworkManager #search apa.gad.schneider-electric.com #nameserver xx.xx.xx.xx #nameserver xx.xx.xx.xx
2. Agent configuration
mkdir -p /etc/systemd/system/docker.service.dvi /etc/systemd/system/docker.service.d/http-proxy.conf
Specific configuration content
[Service] Environment="HTTP_PROXY=http://xx.xx.xx.xx:80/
3. Restart docker
systemctl daemon-reload systemctl restart docker
4. View the configuration results
systemctl show --property=Environment docker
If the following output appears, configure Success
Environment=HTTP_PROXY=http://x.xx.xx.xx:80/
Recommended tutorial: docker tutorial
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Docker is a Linux container technology-based tool used to package, distribute and run applications to improve application portability and scalability. 1) Dockerbuild and dockerrun commands can be used to build and run Docker containers. 2) DockerCompose is used to define and run multi-container Docker applications to simplify microservice management. 3) Using multi-stage construction can optimize the image size and improve the application startup speed. 4) Viewing container logs is an effective way to debug container problems.

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".

The methods to view Docker logs include: using the docker logs command, for example: docker logs CONTAINER_NAME Use the docker exec command to run /bin/sh and view the log file, for example: docker exec -it CONTAINER_NAME /bin/sh ; cat /var/log/CONTAINER_NAME.log Use the docker-compose logs command of Docker Compose, for example: docker-compose -f docker-com

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).

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]

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.

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


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