Today, colleagues to install the SDK in the Docker Jenkins container, when he put his previous installation of the SDK to pass me, I found that there are 16g,docker containers are only 10 g, fortunately, let me find a dynamic expansion of the Docker container articles, first
Container interconnection between multiple physical hosts of Docker
The default bridge Nic of Docker is docker0. It only bridges all container NICs on the local machine. For example, the virtual Nic of the container is generally called veth * on the host, while
partition to the/var/lib/docker, and set the boot auto mount.
Mount/dev/vg_home/lv_docker/var/lib/docker
vim/etc/fstab
---
/dev/vg_home/lv_docker/docker_data ext4 defaults 0 0
----
F. Detect if Docker is available and data is complete
Docker images
G. Uninstall the temporary mount point after confirming th
Write in front:After continuing with Docker's learning and learning the basic common commands of Docker, I installed jdk,tomcat two basic Java Web Tools on Docker, where the operating procedures were recorded.Software Preparation:1, jdk-7u79-linux-x64.tar.gz2, apache-tomcat-8.0.36.tar.gzDownload CentOS Image: ( the process of downloading CentOS is very long )1 #
First, list the containers that have been created on the hostDocker Ps-aSecond, create an interactive containerCommand: Docker run-i-T Ubuntu/bin/bashWhere-i-t represents the creation of a container that provides an interactive shell.Ubuntu is the name of the image, if it does not exist locally, go back to the repository to download./bin/bash is the command that executes immediately after the specified
To add a data volume
You can use the Docker create and Docker run commands in conjunction with-V to add data volumes to the container. You can mount a data volume by using-V multiple times:
$ docker run-d-P--name web-v/webapp training/webapp python app.py
mount the host directory as a data volume
$
Docker assign static IP to the container for the specified physical network segmentPony 2015-02-06
theRead Docker Linux OS
The official information about the Network bridge and IP configuration is the address of the document: https://docs.docker.com/articles/networking/
1, host (System using UBUNTU-14.04.1-SERVER-AMD64) network using bridging mode (the default i
Docker Container Management* Docker create-it CentOS//This can create a container, but the container does not start* Docker start container_id//Start container, you can use
Deploying Django applications with DockerThe experimental environment: Tencent Cloud Server CentOS 6.7 x86_64Because the Docker Hub of the Mirror in the domestic download speed is very slow, so this time using the Daocloud provided by the mirror. The basic operation of Docker can refer to http://www.tianfeiyu.com/?cat=159.
Docker deployment of Django application
Original address: https://docs.docker.com/engine/admin/resource_constraints/#configure-the-realtime-scheduler
Summary
In Docker, the container's resources are limited only by the host-side kernel resource scheduling. However, you can add some resource control flags to control the container's MEMROY,CPU and block IO resource allocations when you start the container with the
If the time can be reversed, the real world every step can be broken down to the smallest, recorded, is the log, all things the same day.In the face of history, examine the log, you can choose to forget, you can choose to remember, experienced, can choose to cherish, also can let it dust-laden.What about Docker containers? The log is like a timeline, where you are or not, and he is there. Some people have a good faith in it, but others are free to do
Using the Docker process, we need to look at the data generated in the container, and between the container and the container, the container and the host before the data sharing, backup and other operations, where the data management of the
This is a creation in
Article, where the information may have evolved or changed.
This article mainly introduces the Docker basics, first introduce my implementation environment:1. Windows 10 Official edition1. Docker Toolbox1. Docker version 1.8.21. Official Image Ubuntu:latest
Here we mainly only say aufs/containers/graph these three directories.
1
Preparation: JBoss, JDK, a Java EE War pack, DockerfileNote: JBoss and JDK can not be prepared in advance, wget in the command, because I happen to have, directly copiedDockerfile content:#admln 20150120From ubuntu:14.04Maintainer admln RUN Mkdir/usr/jbossCOPY wildfly-8.2.0.final/usr/jboss/COPY javaeedocker.war/usr/jboss/standalone/deployments/RUN mkdir/usr/java/COPY jdk-7u71-linux-x64.tar.gz/usr/
In this article we'll look at how to install Docker on CentOS 7. Docker is like a lightweight virtual machine that makes it easy to create and manage Linux containers. And can be started or stopped at a millisecond-level speed. Docker helps system administrators and programmers develop applications in containers, and can scale to thousands of nodes.The main diffe
About Docker Core ConceptsMirroring is a read-only template for the Docker engine that contains the file system.Mirroring is the basis for creating a container that resembles a sandbox for running and isolating applications.A container is a running instance of an application created from a mirror, which can be started,
Docker provides a method for direct access to multiple containers, the simplest way is to specify the mapped port directly using the port mapping -p parameter or -P to map all the ports, and multiple containers are accessed directly over the network port. However, network port mapping is not the only way to connect multiple containers in Docker, and you can use Docker's connection system ( --link ) to conne
Let's review some basics:the machine needs a network interface to send and receive packets, and a routing table to define how to reach which address segments. The network interface heremay not be a physical interface. In fact, the LO Loopback interface (also available in the Docker container) on each Linxu machine is a completeThe Linux kernel virtual interface, which copies the packets in the send cache di
How to log in to a container
SSH Login
third-party tools (Nsenter, Nsinit)
Tools provided by Docker (Attach, exec)
Advantages
In line with the usual login server habits, no additional learning
Quick and easy to use
Quick and easy to use
Disadvantages
Secret Key management SSH upgrade monitoring
Need to learn third party tools using rules
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