centos6.5 under Docker Learning notes _docker

centos6.5 operating system, Docker learning notes.

Upgrading the centos6.5 kernel
The official documentation requires a minimum of 3.8 Linux kernel, and Docker can only run on 64-bit systems. Because the kernel version of RHEL6 and CentOS6 is 2.6, you must upgrade the kernel first.
1, yum installation with Aufs module of the 3.10 core;

CD/ETC/YUM.REPOS.D 
wget http://www.hop5.in/yum/el6/hop5.repo
yum Install Kernel-ml-aufs Kernel-ml-aufs-devel

2, modify grub's main configuration file/etc/grub.conf, set the Default=0, the first title under the content of the default starting kernel (generally newly installed kernel in the first position);
3. View kernel after reboot

Uname-r

Http://dockerpool.com/static/books/docker_practice/index.html

Install Command:
Yum-y Install Docker-io

Change configuration file

Vi/etc/sysconfig/docker

Other-args column changed to: other_args= "–exec-driver=lxc–selinux-enabled"

Start the Docker service

Service Docker start

Add Docker to boot

Chkconfig Docker on

Search Mirror

Docker Search CentOS

Getting mirrors

Docker Pull Xxx.com/centos

Listing local Mirrors

Docker images

Start container

Docker Run-t-I. Centos/bin/bash

The-t option lets Docker assign a pseudo terminal (Pseudo-tty) and bind to the container's standard input.
-I keeps the standard input of the container open.

Exit container

Exit

Update container

Docker commit-m "Operation Desc"-A "Docker user" 0b2616b0e5a8 Ouruser/sinatra:v2

-M to specify the presentation information, just like the version control tool we use;
-A can specify updated user information;
Then is the ID of the container used to create the mirror;
Finally, specify the warehouse name and tag information for the destination mirror.
The ID information for this mirror is returned when the creation is successful.

Exporting mirrors

Docker Save-o Centos.tar Xxxx/centos:tag

Load mirror like

Docker load--input Centos.tar

Or

Docker Load < Centos.tar

To delete a local mirror

Docker RMI Xxxx/centos:tag

Note: Docker rm is a removal container

Start container

Docker Start Sysid

Guardian State operation

Docker run-d Xxx/centos:tag/bin/sh-c "while true; do echo Hello world; Sleep 1; Done

To view container process information

Docker PS

View Container Output Information

Docker logs

Terminate container

Docker Stop Sysid

Enter the container

Docker Attach Sysid

Exit container
[Ctrl+p]+[ctrl+q]

Export container Snapshots

Docker Export Sysid >> Centos.tar

Import Container Snapshots

Docker Import Centos.tar Xxxx/newcentos

Delete Container

Docker RM Sysid