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- What are the main features of docker
- The main features of docker are: 1. File system isolation; 2. Resource isolation; 3. Network isolation; 4. Copy on write; 5. Logging; 6. Change management; 7. Interactive Shell.
- Docker 6648 2020-04-15 16:01:17
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- What are docker images and warehouses?
- The docker image is like a Linux file system. This file system contains programs and corresponding data that can run in the Linux kernel. A warehouse is a place where images are stored centrally.
- Docker 2598 2020-04-15 15:51:47
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- How to install docker on the intranet under linux
- The method to install docker in the intranet under Linux is: 1. Download docker and decompress it; 2. Move the contents of the decompressed docker file to the directory /usr/bin; 3. Register docker as a service and add configuration; 4. Add file permissions and start docker.
- Docker 3982 2020-04-15 15:34:13
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- How to start docker in centos
- The method to start docker in centos is: 1. Run the command [systemctl start docker] to start docker; 2. Run the command [sudo systemctl enable docker] to set it to start automatically at boot.
- Docker 4365 2020-04-15 15:16:58
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- How to install docker in ubuntu environment
- The method to install docker in the ubuntu environment is: 1. Check the relevant version of the operating system; 2. Add the docker source; 3. Check whether you can connect to the network and update the source package; 4. Run the command [apt-get install docker-engine] to install .
- Docker 2559 2020-04-15 15:05:45
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- Windows cannot start automatically after closing docker
- The solution to the problem that Windows cannot start automatically after closing Docker is: 1. First open the control panel and enter the [Select what the power button does] option; 2. Then click [Change settings that are currently unavailable] and uncheck [Enable fast startup] 】 option.
- Docker 4677 2020-04-15 11:36:58
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- What should I do if I cannot access the Internet after installing docker?
- Solution to the problem of being unable to access the Internet after installing docker: 1. Open the sysctl.conf configuration file; 2. Add the configuration [net.ipv4.ip_forward=1]; 3. Execute the command [systemctl restart network] to restart the service.
- Docker 6028 2020-04-15 11:00:26
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- What should I do if docker cannot download the image?
- The solution to the problem that docker cannot download the image is: 1. Run the command [systemctl stop firewalld] to turn off the firewall; 2. Run the command [date -s xxxx] to synchronize the time; 3. Run the yum command to install [docker -devel].
- Docker 4316 2020-04-15 10:24:51
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- How does a native browser access the contents of a docker container
- The method for the native browser to access the contents of the docker container is: 1. View the detailed information of the container; 2. View the mapping relationship; 3. Enter the host; 4. Run the command [curl http://localhost:32768] to access the docker container Content.
- Docker 6393 2020-04-15 10:15:27
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- Reasons why the database is not suitable for docker and containerization
- The reasons why the database is not suitable for docker and containerization: 1. Data insecurity; 2. Environmental requirements for running the database; 3. Network issues; 4. Status issues; 5. Additional isolation is detrimental to the database.
- Docker 3204 2020-04-15 10:01:07
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- How to check whether the docker service is started through the command line
- The way to check whether the docker service has been started through the command line is to check the running status of the docker service by running the command [systemctl status docker], and then judge based on the output information.
- Docker 12843 2020-04-15 09:43:56
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- How to check the reason why the docker process exited
- The way to check the reason why the docker process exited is to directly run the command [dmesg | grep -i -B100 'killed process'] to check all the processes that were killed, and then find the reason why the docker container exited in the output information.
- Docker 4668 2020-04-15 09:35:15
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- How to export docker image
- The method to export the docker image is to directly run the [docker export -o nginx-test.tar nginx-test] command. The parameter [-o] indicates output to a file, nginx-test.tar is the target file, and nginx-test is the source container name.
- Docker 4241 2020-04-14 15:49:18
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- How to upgrade the tomcat version in docker
- The method to upgrade the tomcat version in docker is: 1. Run the command [docker pull tomcat] to pull the latest image; 2. Run the command [docker stop tomcat] to stop the current tomcat container; 3. Run the latest version of tomcat.
- Docker 4842 2020-04-14 15:37:30
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- How to back up docker image
- The method for docker to back up the image is to directly run the command [docker save -o mycentos.tar mycentos_new:1.1] to complete the backup. Then use the ls command to view the packaged tar package.
- Docker 2724 2020-04-14 15:17:40
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