oracle container docker

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

Use the-v parameter in Docker Practice 2 to associate the host with the related directory in the container (mount), so we can use this channel to place the data that we want to copy with each other so that we can copy the file with the CP command. In addition to this approach, we can also use different commands to copy the data. copy data from a container like a

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

With Docker's leading position in the cloud computing market, container technology has become a mainstream technology. To use the container technology for the user's application, follow these five steps. Docker container technology has been rage in the cloud computing market, and many mainstream suppliers are facing t

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 "

/supervisord Configure Supervisor Create a new standalone configuration file, such as/media/storage/work/supervisord.ini, to configure the startup of each container Docker start-a means attaching to an existing container, or starting a new container (if not started) [Program:zookeeper] Command=/usr/bin/

Reprinted from: http://yangrong.blog.51cto.com/6945369/1582184 Docker container once started, the parameters can not be changed, production environment is the most common change is the port mapping, in order to solve this problem, then the first plan, this article lists two port planning scenarios, if there is a subsequent maintenance to increase the port mapping scenario, this paper also gives the dynamic

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

Copy files from the container to the host [Root@oegw1 soft]# Docker PS CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 8d418a7b6021 Postgres "/docker-entrypoint. 7 hours ago up 7 hours Test1 [Root@oegw1 soft]# Docker exec-t-I. 8d418a7b6021/bin/bash root@oegw1:/var/lib/

NSenter first: Cd/tmp; curl http://ftp.sjtu.edu.cn/sites/ftp.kernel.org/pub/linux/utils/util-linux/v2.25/util-linux-2.25.tar.gz | tar-zxf-; cd util-linux-2.25;Sudo apt-get install build-essentialSudo apt-get make./Configure -- without-ncursesMake nsenter sudo cp nsenter/usr/local/bin Method 1: PID =$ (docker inspect -- format "{. State. Pid }}" ) Nsenter -- target $ PID -- mount -- uts -- ipc -- net -- pid Method 2: Installation script (Scrip

;input==>select input ===>gelf UDP 6. Modify the Docker daemon startup parameters–log-driver=gelf–log-opt gelf-address=udp://10.250.160.32:12201–log-opt Gelf-compression-type=gzip–log-opt gelf-compression-level=1–log-opt tag= "Test01_env"7. Restart Daemon[Email protected] ~]# Systemctl daemon-reload[Email protected] ~]# Systemctl restart DockerAfter you start the container, you can see the logs

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

Root (id = 0) is the default user of the container. The creator of Docker image can add new user. For example, the dockerfile of Jenkins image is this: From JAVA:8-JDK RUN apt-get update apt-get install-y wget git curl zip rm-rf/var/lib/apt/lists/* Env Jenkins_home/var/jenkins_home Env jenkins_slave_agent_port 50000 # Jenkins is run with user ' JENKINS ', uid = 1000 # If You bind mount a volume from the h

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

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