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What is the docker ecosystem?

What is the docker ecosystem?

The ecosystem includes: 1. Docker Hub, which is an official resource for pre-written Dockerfiles and provides public and private image repositories; 2. Docker Engine, the core software used to run and manage containers; 3. Kitematic, which is a visualization Management tools; 4. Machine and Swarm, which provide a simple set of tools for various virtualization and cloud service providers to move and scale their local projects; 5. Compose; 6. Cloud; 7. Center.

May 11, 2022 pm 02:49 PM
Docker
What are the two core technologies of docker?

What are the two core technologies of docker?

Two core technologies: 1. "Linux namespaces", which is a kind of encapsulation and isolation of global system resources, so that processes in different namespaces have independent global system resources; 2. "Control Groups", which can isolate the physical resources on the host machine. Resources, implement quotas and measurement of resources.

May 11, 2022 pm 12:57 PM
Docker
In which directory is the image compiled by docker placed?

In which directory is the image compiled by docker placed?

The image is placed in the docker root directory. The content of the image layer is generally in the aufs path of the Docker directory, the specific address is "/var/lib/docker/aufs/"; for each image layer, a corresponding json file will be saved, the path is "/var/lib/docker /graph".

May 11, 2022 pm 12:14 PM
Docker
Does docker support installation using yum?

Does docker support installation using yum?

Docker supports installation using yum. Installation method: 1. Use "yum install -y yum-utils..." to install the Device Mapper tool; 2. Configure the yum data source of docker; 3. Use "yum -y install docker" to install it.

Apr 14, 2022 pm 07:21 PM
docker
Is docker a vps?

Is docker a vps?

docker is not vps. Docker is an open source application container engine, an advanced container engine based on LXC; vps is the abbreviation of "Virtual Private Server", which is a virtual private server. The technology to implement VPS is divided into containers and virtualization technology, so docker is not a vps.

Apr 14, 2022 pm 07:09 PM
docker
What is the reason why docker container exits automatically?

What is the reason why docker container exits automatically?

The reasons why the docker container will automatically exit: 1. The docker container does not have a foreground process, and the container will think it is idle, so it will exit automatically; 2. The command run by the container is not a command that is always suspended (such as top, tail, loop, etc.), so it will automatically exit. quit.

Apr 14, 2022 pm 06:48 PM
docker
How to check which version of docker is used

How to check which version of docker is used

You can use the "docker version" command to check which version of docker is. This command is used to display the version information of docker, and you can specify the template file of the return value by setting the parameter to "-f" and display the "Version" item in the result. The content is the version number of docker.

Apr 14, 2022 pm 06:43 PM
docker
What does docker volume mean?

What does docker volume mean?

In docker, the essence of a volume is a file or directory, which exists in one or more containers and is mounted to the container by docker. It does not belong to the joint file system; modifications to the data volume will take effect immediately, and updates to the data volume will not affect Mirror.

Mar 23, 2022 pm 06:20 PM
docker
What is the mapping of docker

What is the mapping of docker

In docker, mapping refers to the process in the container that is used to interact with the outside. Commonly used is the mapping between the port in the container and the host. Through port mapping, the designated port of the host can be accessed from the outside to access the container. Applications.

Mar 23, 2022 pm 06:08 PM
docker
What does docker containerization mean?

What does docker containerization mean?

Docker containerization refers to the process of integrating applications into containers and running them; the core idea of ​​docker is how to integrate applications into containers and actually run them in the containers. Once the application containerization is completed, it can be mirrored Delivered as a container and run as a container.

Mar 23, 2022 pm 05:40 PM
docker
What is docker cluster and mirror

What is docker cluster and mirror

A cluster is a group of machines running Docker, and each machine is called a node; an image is a special file system that, in addition to providing the programs, libraries, resources, configuration and other files required for the container to run, also contains Some configuration parameters prepared for runtime.

Mar 23, 2022 pm 05:15 PM
docker
What is the difference between docker volume and mount

What is the difference between docker volume and mount

The difference between "docker volume" and mount is: "docker volume" is declarative, "Docker Engine" itself will occupy a certain directory in the system, and Docker will assign a path to the volume under the occupied path by default; while mount It will not occupy a path as a mount point.

Mar 08, 2022 pm 04:53 PM
docker
What is a host in docker

What is a host in docker

In docker, the host machine is "Docker_Host", which is one of the overall architecture of Docker. It can be a physical machine or a virtual machine. A docker service runs on the host machine. Using "docker daemon" can realize the docker object Life cycle management.

Mar 08, 2022 pm 04:15 PM
docker
What are docker and nas

What are docker and nas

Docker is an open source application container engine, nas is a dedicated data storage server; docker is used to create and manage containers, and can also implement virtualization. nas includes storage devices and embedded system software, which can provide cross-platform file sharing functions.

Mar 08, 2022 pm 04:08 PM
docker

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