This series of Docker learning is CENTOS7 under the study.
1. Container Host/Host Access container
Start a mirror that has been configured for JDK, Tomcat, named Tomcat01.
Use Route-n to view the route of the host, ifconfig to view the host's IP.
DOCKER0 network card is docker when the installation is started on the
Tags: rs.remove technology ima rem mirroring arp option link file1. Build the MySQL container and add the database userRefer to Docker creation to run multiple MySQL containers, address http://www.cnblogs.com/heyangyi/p/9288402.htmlAdd user database, add tbusers table2. Create an ASP. NET Core WEBAPI ApplicationRefer to Docker to generate
ObjectiveUsually in the Docker experiment, you will often need to modify some configuration parameters, some parameters modified, it is necessary to restart the Docker background process daemon to take effect, but after the Docker daemon restarts, may cause the running container to force shutdown. This is inconvenient
Today, a test bug was submitted by a tester during a system integration test because the time of submitting business data was biased against the actual time (Beijing time), resulting in statistical anomalies. Since our integration test is a test environment that provides the tester with a complete Docker mirror directly, the reason should be on the container time setting.
After you get the delivered
;s file storage adopts the loop block device mode for mounting, reading, and writing. It will be very troublesome to resize in the future.So the operation is performed after Kernel 3.10 is upgraded.Upgrade the kernel in four steps:# Cd/etc/yum. repos. d# Wget http://www.hop5.in/yum/el6/hop5.repo# Yum install kernel-ml-aufs-devel-y# Modify grub. conf to start kernel 3.10 rebootContinue!Containers: 0Images: 0Storage Driver: aufsRoot Dir:/var/lib/
Preface
Everyone uses Docker to download images from the container repository, but this process may depend on the bandwidth of the network, so if you migrate a downloaded image to another environment, or how to implement a backup or restore of a docker container, or migrate, let's talk about it a bit.
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ObjectiveThe company has been using the traditional Tomcat to drop the war package architecture system, with the increase of the project, the number of servers, the need to spend a lot of time on different server system environment issues. In order to advance the technology and the operational efficiency of the work, the author introduced the Docker container deployment mode, through the Gitlab+jenkins+harb
Project background:While we are using Docker to bring us convenience, sometimes we need to build a docker cluster, this time, the following content is very valuable.Lab Environment:VMware Workstation 11Under the centos7.0 systemServer: ip:192.168.0.60SECURECRT (SSH remote connection software)Software Introduction:Here are two things I know about Docker.http://9399369.blog.51cto.com/9389369/1758576 "
Update Docker containerAfter installing Redmine with Docker, it's been a long time, and in the days of maintaining the server, the Redmine version was also upgraded.Just think about upgrading the container, too.First, the general idea:
Upgrade Docker Image
Close on the
syntax and commands, and you can refer to Docker's official documentation.
2. With the Dockerfile file, you can create image files based on Dockerfile, and in the directory where Dockerfile is located, run the following command
sudo docker build-t centos6-ssh.
When the command succeeds, an image named Centos6-ssh is created and can be viewed using the sudo docker images.
3. At this point, you can creat
As we all know, Docker run can specify port mappings, but once the container is generated, no command can be modified directly. Typically, the indirect approach is to save the image, create a new container, and specify a new port mapping at the time of creation.
Is there any way to modify the existing container withou
Package a Docker image so that your friends can load and open a container and output hello and world to the specified file every second,
I. Two script codes
Dockerfile
1 FROM bash2 COPY . /usr/herui/3 WORKDIR /usr/herui/4 CMD [ "sh", "hello_world.sh" ]
Hello_world.sh
1 #!/bin/bash2 while true3 do4 echo 'hello world!' >> /usr/herui/hello_world.log5 sleep 16 done
Ii. package it into an image
1,
1 [root@loca
To support container Cross host communication, Docker provides overlay driver, allowing users to create overlay networks based on Vxlan. Vxlan can encapsulate two-tier data into UDP for transmission, Vxlan provides the same Ethernet two-tier service as the VLAN, but with greater scalability and flexibility. More detailed information about Vxlan can be referenced in the relevant chapters of Cloudman's 5-minu
Kubernetes is Google's Open source container cluster management system. It is built on Docker technology and provides a whole set of functions, such as resource scheduling, deployment operation, service discovery, expansion and contraction capacity, for containerized applications, which can be regarded as Mini-paas platform based on container technology. The purp
In the previous section we deployed ETCD, and this section installs and configures flannel. Build Flannel
Flannel do not have a ready-made executable file available, you must build it yourself, the most reliable way is to build in the Docker container. But for build Docker mirror hosting in Gcr.io, domestic may not be directly accessible, for the convenience of e
Docker learning: configure the rancher network environment, download and start the Tomcat container1. About rancher
The rancher environment was set up last time, but the network was not configured properly (). Container not created successfully. This time, it turns out to be a network problem. The coreos installed in virtualbox is not configured with an ip address, causing network access failure. The agent
Link modehttp://blog.csdn.net/halcyonbaby/article/details/42112325The container is created by link, and then we can access it using the alias of the link container.This will remove the application's reliance on the IP.Unfortunately, the link method only solves the interconnection between single-machine containers. In multi-machine cases, the interconnection of containers requires other means.[[emailprotected] ~]#
Development Course Edgeservice3-14 ApigatewayzuulChapter 4th Prelude to service arrangementTo prepare for the service orchestration, first we docker all microservices and then use the native Docker-compose to run them in the container and ensure that they can communicate with each other in the container as well. Final
Original link: Docker create MySQL ContainerThe purpose of this article is to create an image of MySQL and automatically start the MySQL service in the newly created container to accept external connectionsSteps:1. First create a directory and create a dockerfile in the directory, the file content is as followsFrom Centos:centos6maintainer fanbin Kong "[email protected]" RUN yum install-y mysql-server MySQL
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