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What does pod mean in docker

What does pod mean in docker

pod in docker means a combined multi-container running unit; pod is a basic unit in Kubernetes and can be regarded as an extension or enhanced container of the container. When multiple processes are packaged in a "Name Space", A pod is formed, and the application packaging of different processes in the pod is still independent.

Jul 08, 2022 am 11:11 AM
Docker
Is docker a partitioned operating system?

Is docker a partitioned operating system?

Docker is not a partitioned operating system; an operating system is a computer program that manages computer hardware and software resources, and docker refers to a docker container, an open source application container engine that can package applications and dependency packages into a portable image, and Publish to any popular operating system machine.

Jul 08, 2022 am 10:42 AM
Docker
What is run in docker

What is run in docker

In docker, run is a command used to create a new container and run a command; when executing "docker run", Docker will start a process and allocate its exclusive file system and exclusive network resources to this process. And the process group with this process as the root process, the syntax is "docker run [OPTIONS] IMAGE [COMMAND] [ARG...]".

Jul 08, 2022 am 10:25 AM
Docker
What is included in the docker image

What is included in the docker image

The docker image contains the programs, libraries, resources, configuration and other files required to provide the container runtime, as well as some configuration parameters prepared for the runtime; the image is a special file system that does not contain any dynamic data, and its content is It will not be changed after it is built.

Jun 27, 2022 am 11:23 AM
Docker
What are docker microservices

What are docker microservices

Docker microservices refers to the way of developing a single application using a set of small services; each service runs in an independent process and is generally interconnected using a lightweight communication mechanism, and they can be deployed in an automated way; microservice idea It is to split the traditional single system into multiple interface services with single responsibilities and independent operation according to business.

Jun 27, 2022 am 11:17 AM
Docker
Does docker run on a physical machine or a virtual machine?

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.

Jun 27, 2022 am 11:12 AM
Docker
What should I do if docker cannot resolve the domain name?

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.

Jun 27, 2022 am 10:55 AM
Docker
Does windows7 support the use of docker?

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.

Jun 27, 2022 am 10:44 AM
Docker
Do you need root permissions to use docker?

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.

Jun 27, 2022 am 10:33 AM
Docker
Will the image in docker be updated automatically?

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.

Jun 22, 2022 pm 04:23 PM
Docker
Where is the docker system log?

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...".

Jun 22, 2022 pm 04:17 PM
Docker
How to check if docker mapping is successful

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.

Jun 22, 2022 pm 04:11 PM
Docker
What does docker process isolation mean?

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.

Jun 22, 2022 pm 04:04 PM
Docker
Which company's product is docker?

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.

Jun 22, 2022 pm 03:54 PM
Docker

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