Install docker and ubuntu
Docker
Environment:
Centos 6.5 64-bit
If the system is installed by default, the centos kernel is
[Root @ localhost ~] # Uname-Linux localhost. localdomain 2.6.32-431. el6.x86 _ 64
Docker supports 64-bit kernel for versions 3. xx and later.
1. First, upgrade your own kernel level 2.6-"3.xx
Steps:
[Root @ localhost ~] # Rpm-ivh http:/
Before the company's test environment, just start to build their own virtual machine, and then install Redis,nginx,mq,mysql,tomcat,jdk,marven, and Jekins. The front is still good, jekins is still a bit troublesome. And then after the mirror out, switch to another platform, a different IP, do a test environment alone. Then every time you deploy, connect to the Linux server via SSH, kill-9, then back up, restart the server, Fight the war pack, really upset people. Later with the Jekins, the develo
Introduced inside Docker The image is running on the filesystem and the parameters are that it will never change. The container is an instance of the mirror runtime. when you're in Docker When you run a command on it, he runs the following actions:1. Check if the image exists2. if not, download3. Load the image run the action you wantView Local containers[[emailprotected]~]#dockerimagesrepository TAG IMA
Installation Environment Preparation
Linux kernel version
Uname-a
Docker version
sudo docker version
Installing Docker Registry
sudo docker run-d-v/home/hzq/registry:/var/lib/registry-p 5000:5000--restart=always--privileged=true--name registr Y registry:latest
-v/home/hzq/registry:/var/lib/registry by default, the wa
A wild full-stack engineer configures the scheduled task crontab (DaoCloud + Docker + Laravel5) in a Docker container and prefers to study various new technologies.
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Recently, the project involves the function of a scheduled task. so I went to study how to use crontab over the past few days and successfully enabled the function on my computer according to relevant online tutorials.Add crontab
1. Select the base imageDocker Pull Tomcat:7.0-jre82. Generate an HTTPS certificateKeytool-genkey-alias Tomcat-keyalg Rsa-keystore Tomcat.keystore[Email protected]:~/ssl# lsTomcat.keystore3. Launch the Tomcat container and import the certificate[Email protected]:/usr/local/tomcat# ls/tmp/Tomcat.keystore[Email protected]:/usr/local/tomcat# mkdir Keys[Email protected]:/usr/local/tomcat# cp/tmp/tomcat.keystore keys/[Email protected]:/usr/local/tomcat# ls keys/Tomcat.keystore4. CommitDo not exit con
1, from the container inside copy files to host.
Answer: Execute the following command in the host
Docker CP container name: The path of the file to be copied inside the container to be copied to the appropriate path of the host
Example: Assuming that the container is named Testtomcat, the file to be copied from the container is:/usr/local/tomcat/webapps/test/js/test.js, now to move test.js from the container Copy to the host's/opt path, so the comm
Docker CP: Used for data copies between containers and hosts. Grammar
Docker CP [OPTIONS] Container:src_path dest_path|-
Docker CP [OPTIONS] src_path|-Container:dest_path
Options Description:
-L: Keep a link instance from the source target
Copy the host./rs-mapreduce directory to the/home/cloudera directory of the container 30026605dcfe.
Understanding docker
The following are all translated from the official docker documentation. For more information, see Vikings.
What is docker?
Docker is an open-source platform designed to facilitate development, deployment, and application execution. You can use docker
This article describes the use of Docker-machine to build a Docker swarm cluster; Docker swarm is the official Docker-built container cluster orchestration tool, and container orchestration allows you to use a cluster like a machine, The container you are running may run on any node in the container;First, steal a
Use docker for laravel development environment. By the way, we will introduce how to use laravel to set up the docker container cost commands. Laravel is one of the most popular php development frameworks in 2015.
I have some similar introductions on the Internet, but I think I should write one myself.Create a file and grant the executable permission. The objective is to run the coomposer image as a local
Docker data volumesA data volume is a specially crafted directory that can bypass the federated file System (UFS) and provide access to one or more containersFeatures of the data volume:The data volume is initialized when the container starts, and if the image used by the container contains data at the mount point, the data is copied to the newly initialized data volumeData volumes can be shared and reused between containersCan modify the contents of
Compose is a tool for defining and running Multi-container Docker applications. With Compose, you use a Compose file to configure your application ' s services. Then, using a single command, you create and start all the Servicesfrom your configuration. To learn more on all the features of Composesee the list of features.Compose is a tool for defining and running Multi-container Docker applications. With Com
Because of business needs, we need to use Python to clean up some container that are dead, of course, we can use Docker ps-a and then filter the container with the status of dead, now we have a better choice: docker-py
Official Document Address: https://docker-py.readthedocs.io/en/stable/
Here's a simple use:
>>> from Dock
Service can not be started in the Docker container in Centos7.
systemctl start httpd
Error content: Failed to get D-bus connection:operation not permitted.
Online query information, said in the Docker run container when the addition of--privileged parameters, but no eggs used.
The reason for this error is that Dbus-daemon failed to start. Systemctl is not impossible to use. Set cmd or entrypoint t
Build a private Docker Registry on CentOS 6 v2RegistryConceptReGistry is a stateless, highly extensible server-side application for storing and distributing Docker Image.Dependent installation1.InstallationDockerTo use Docker Registry, of course, first install Docker. Let's say you've installed
Reprint: http://www.csdn.net/article/2015-02-11/2823925absrtact: When Docker was unknown, CoreOS founder Alex foresaw the value of the project and made it the first application isolation solution supported by CoreOS. This article will focus on how to properly manage Docker containers in CoreOS in a specific scenario.Note: This article is starting in csdn, please indicate the source of the reprint."Editor 's
Install the required softwareDockerDocker-composeThe contents of the configuration Docker-compose.yml file are as follows:#load balancer'll automatically update the config using consul-templateLb:Image:yeasy/nginx-consul-template:latestHostname:lbVolumes-/usr/soft/consul/logapi.conf:/etc/consul-templates/nginx.confLinks-Consulserver:consulPorts-"80:80"Consulserver:Image:gliderlabs/consul-server:latestHostname:consulserverPorts-"8,300:8,300"-"8,301:8,3
1 First you have to prepare a hub account, go to https://hub.docker.com register it!2 Create a new warehouse at the hub, which is similar to the one on GitHub. Creation---> Create repository (Creating a knowledge Base) and then just a name, I'll call it Ubuntu, so the path is Wherein/ubuntu.3 Run Docker PS View container, here is to get to container ID4 Commit a container command: Docker commit CONTAINER ID
Restart the server, previously able to run the Docker network applications can not be opened normally.
Because of the use of CENTOS7, so speculation is likely to be a iptables problem.
Docker start or run always prompt for a similar error:No Chain/target/match by that name
Google a bit, and some people actually encountered similar problems.Centos 7 of/etc/sysconfig/iptables files:
*nat
:P rerouting ACCEPT [
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