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- Is the docker image transport layered?
- The transmission of docker images is layered; because the docker image is built in layers, the process of building the image is disassembled, the common points with other services are found, and it is formulated as a basic image. Each specification in the Dockerfile will create a new layer. This saves disk space, so the transfer of docker images is layered.
- Docker 3062 2022-08-17 16:33:49
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- What does network mode in docker mean?
- The meaning of docker network mode: 1. Bridge mode, the default network driver model, will automatically configure its own network information when the docker container starts; 2. Host mode, breaks the network isolation between the Docker container and the host, directly Use the network environment of the host; 3. Overlay mode, which can connect multiple docker daemons or satisfy communication between cluster services; 4. none mode, which disables the network driver; 5. plugins mode, uses third-party network driver plug-ins.
- Docker 3116 2022-08-17 16:25:18
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- Does win10 professional version come with docker?
- The win10 professional version does not come with docker; the win10 professional version system first needs to enable hardware virtualization and the "Hyper-V" function before the "Docker for Windows" software can be installed, so the win10 professional version does not come with docker.
- Docker 2539 2022-08-19 09:12:43
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- How docker solve the problem that crontab does not take effect
- Solution: 1. Check whether "/etc/init.d/crond status" in the container is in running status; 2. Modify the "/etc/pam.d/crond" file and change "required" to "sufficient" ;3. Use "/etc/init.d/crond restart" to restart the crond service.
- Docker 8358 2022-08-16 18:18:36
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- What is docker container technology
- Docker container technology refers to the fact that Docker is a container run by a program written in the GO language, which implements an application-level isolation; docker is designed for developers and system administrators to publish and run distributed applications. an open platform.
- Docker 8672 2022-08-16 18:02:22
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- What does build mean in docker?
- In docker, build means "create"; this command is used to build a Docker image based on the given Dockerfile and context. The syntax is "docker build [OPTIONS] PATH | URL | -". Dockerfile is a file used to build the image. A text file containing the instructions and instructions required to build the image.
- Docker 6688 2022-08-16 17:38:59
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- What should I do if docker cannot access the external network?
- There are two solutions for docker unable to access the external network: 1. Use "service docker stop", "pkill docker" and other operations to rebuild the network docker0; 2. Use "echo "net.ipv4.ip_forward=1" >> /etc/sysctl .conf" to modify the configuration and enable the ipv4 forwarding function of the host.
- Docker 14965 2022-08-16 17:22:29
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- Can docker install centos?
- Docker can install centos. Installation method: 1. Check the available centos version and use "docker pull centos:centos7" to pull the image of the specified version; 2. Check the local image and use "docker run" to run the container; 3. Use the "docker ps" command. You can view container running information.
- Docker 6707 2022-08-16 17:08:07
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- Why does docker use tags?
- In docker, because tags can be used to mark local processes and classify them into a certain warehouse, the tag command needs to be used; the syntax of the tag command is "docker tag SOURCE_IMAGE[:TAG] original image TARGET_IMAGE[:TAG] new image" .
- Docker 2874 2022-08-15 18:20:31
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- Does the docker container have an ip?
- Docker containers have IPs; Docker containers can allocate and specify IPs, especially when building a cluster, which can prevent container IP confusion. When starting a docker container, using the default network does not support assigning a fixed IP, so you need to create a custom network and set a fixed IP.
- Docker 4189 2022-08-15 18:11:46
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- Can a docker container only run one application?
- A container in Docker can not only run one application; as long as the resources are sufficient, multiple applications can be run in a container. However, running multiple applications in a container has many disadvantages, which violates the original intention of the container. The container must be lightweight. ; If applications are placed together, it may cause problems with one process and make all processes inaccessible.
- Docker 5172 2022-08-15 18:06:07
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- Can applications be deployed in docker?
- Applications can be deployed in docker. Deployment method: 1. Use "docker search..." to search for the specified application image; 2. Use "docker pull..." to pull the specified application image; 3. Use "mkdir" and cd commands to create a mounting directory; 4. Use "docker run..." to create a container.
- Docker 2211 2022-08-15 17:59:02
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- What is the difference between paas and docker
- The difference between paas and docker: 1. paas is the abbreviation of "Platform as a Service", which refers to platform as a service and provides an environment for customers, while docker is an open source application container engine that allows developers to package their Applications and dependency packages are integrated into a portable image; 2. The principle of the PaaS platform is "app-centric", which is application-centric, not container-centric, while docker is container-centric.
- Docker 2638 2022-08-15 17:42:40
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- What is the system kernel required by docker?
- Docker requires system kernel: 1. Docker runs on "CentOS 7", which requires the system to be 64-bit and the system kernel version is 3.10 or above; 2. Docker runs on "CentOS-6.5" or higher version of CentOS, which requires the system to be 64-bit, the system kernel version is "2.6.32-431" or higher.
- Docker 4335 2022-08-15 17:16:23
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- Can es be deployed with docker?
- es can be deployed using docker; deploying es clusters can be done directly using "docker-compose". "docker-compose" is a docker tool used to define and run complex applications. An application using docker containers usually consists of multiple containers. Compose, using "docker-compose" eliminates the need to use shell scripts to start containers.
- Docker 2654 2022-08-15 17:09:11
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