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- Does docker run on a physical machine or a virtual machine?
- Docker can run on either a physical machine or a virtual machine; whether it is a virtual machine or a physical machine, it is a delivery method of hardware and infrastructure, which is essentially a level, and containers are mainly used to solve software problems. For the central series of issues, it is feasible to run containers on both virtual machines and physical machines.
- Docker 6341 2022-06-27 14:07:09
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- What should I do if docker cannot resolve the domain name?
- Solution: 1. Use "cat /proc/sys/net/ipv4/ip_forward" to check the "/proc" file system and confirm whether the system has turned on the ip forwarding function; 2. Use "echo 1 > /proc/sys/net/ipv4" /ip_forward", change the content in the file from 0 to 1 to turn on the ip forwarding function; 3. Modify the value of "ip_forward" in the "/etc/sysctl.conf" file to permanently modify ip forwarding.
- Docker 3561 2022-06-27 11:00:39
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- Does windows7 support the use of docker?
- Windows 7 does not support the direct installation and use of docker, but you can use the "Docker Toolbox" method to use docker on windows 7; use VirtualBox to create a Linux virtual machine on Windows 7, and install the Docker server and client in the Linux virtual machine.
- Docker 4240 2022-06-27 10:51:25
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- Do you need root permissions to use docker?
- Using docker requires root permissions. Ordinary users without root permissions will not be able to operate docker. If you do not have root permissions, you can use sudo to obtain administrator permissions, run docker commands, or add the current user to the docker user group, then the current user will Have permission to access the "Unix socket", and then you can execute docker related commands.
- Docker 8481 2022-06-27 10:33:45
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- Will the image in docker be updated automatically?
- The image in docker will be updated automatically; you can use the Watchtower tool to automatically update the image. Watchtower is a tool that can monitor whether the running container image is updated. When there is a difference between the local image and the remote image, you can automatically use the current container running Parameters to recreate a new container with the new image and delete the old container.
- Docker 6283 2022-06-22 16:23:49
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- Where is the docker system log?
- The location of docker's system log is in the "/var/lib/docker/." directory. Each container has a specific log. The specific location is "/var/lib/docker/containers/ID name/ID name- json.log"; the log is in JSON format, which is difficult to read. You can use a built-in command provided by docker to view it. The syntax is "docker logs -f...".
- Docker 28997 2022-06-22 16:17:32
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- How to check if docker mapping is successful
- Docker has two methods to check whether the mapping is successful: 1. Use the "docker ps" command to check. If "6379/tcp" appears, it means that the host has not opened port mapping with the virtual machine; 2. Use the "docker port name" command to check , if there is no result, it means that the specified port mapping fails.
- Docker 7491 2022-06-22 16:11:08
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- What does docker process isolation mean?
- In Docker, process isolation means running each container in its own process environment; Docker mainly relies on the Linux kernel technology Namespace to achieve isolation. The "Linux Namespaces" mechanism provides a resource isolation solution.
- Docker 2963 2022-06-22 16:04:23
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- Which company's product is docker?
- Docker is a product of dotCloud; docker was originally an internal project launched by dotCloud founder "Solomon Hykes" while he was in France. It is an innovation based on dotCloud's many years of cloud service technology, and was launched in March 2013 as "Apache 2.0" license agreement is open source, and the main project code is maintained on GitHub.
- Docker 5466 2022-06-22 15:54:37
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- What is docker virtualization
- Docker virtualization refers to a resource management technology that abstracts and converts physical resources of a computer and presents them. It is mainly used to solve the problem of high-performance physical hardware production and the reorganization and reuse of old hardware with low production capacity; while Docker It is a virtual environment container that can package executable files, configuration files and all other files you need into this container, and publish and apply it to any platform.
- Docker 4707 2022-06-22 15:45:31
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- Will data be lost after the docker container is restarted?
- Data will be lost after the docker container is restarted; however, you can use volume or "data container" to achieve data persistence. After the container is closed, you can use "-v" or "--volumes-from" to reuse the previous data. Docker can also Mount the host disk directory for permanent storage of data.
- Docker 11530 2022-06-17 10:41:00
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- Is docker a container?
- Docker is not a container; a container is a standard unit for packaging code and all dependent software for development, delivery and deployment, so that applications can run quickly and reliably from one environment to another, while docker is a type of container technology Implementation is an open source application container engine used to manage containers.
- Docker 7792 2022-06-17 10:32:51
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- Can docker install a graphical interface?
- Docker can install a graphical interface; three commonly used graphical page management tools for docker include DockerUI, Portainer, and Shipyard. You can use these three tools to obtain managed resource information through the "docker api" and use the "docker volume create portainer_data" command. Just install it.
- Docker 4505 2022-06-16 16:44:54
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- Does docker have a windows version?
- Docker has a windows version; the windows version of docker can run in 64-bit windows and is a "Docker Community Edition" application; the windows version of docker can be installed in the professional, enterprise and education versions of windows, but it is not supported Home Edition.
- Docker 10903 2022-06-16 16:38:50
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- Is docker a software?
- Docker is a software that runs on Linux and Windows and is used to create, manage and orchestrate containers; the Docker platform is a software containerization platform and an open source application container engine that allows developers to package their applications As well as dependency packages into a portable image, virtualization can also be achieved, and there will be no interfaces between containers.
- Docker 13068 2022-06-16 16:32:44
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