docker connect to container

Docker containerThe Docker drawback is that the container is deleted, all the data in the container is deleted,So for the long-term preservation of data requires an external data volume, or data containerAccording to my understanding ... is to attach a directory on the physical machine to the

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

/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/

;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

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

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

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

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

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

Some students have installed nginx under Docker but do not know where the directory is, you can use the command" 50x.html "Because Nginx is bound to have 50x.html, so look for it, the results found Nginx directory in the Docker container, if you operate it, you need to enter the container shell.The

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

: ' {print '} ' ipaddr= ' IP addr|grep inet|grep-v "Inet6" |awk ' nr==2 {print $ {} ' |awk-f "/" ' {print '} ' echo 1 >/proc/sys/net/ipv4/ip_forwardovs-vsctl add-br ovsbr0 Ovs-vsctl add-port ovsbr0 gre0--set Interface gre0 type=gre options:remote_ip=192.168.17.128brctl addbr kbr0brctl addif Kbr0 ovsbr0ip link Set dev Docker0 downip link del Dev docker0#=============configure kbr0 by:v===== Online Some versions will be less parameters, Centos7 will error Oh =====cat >>/etc/sysconfig/network-scrip

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/

It took a great effort to download the installation image of Docker Community editor from the Docker website, DOCKER.DMG, a total of nearly 500MB, double-click to install:In the command line, use Docker version to view versions:Then use the command line Docker run Hello-world, and encounter the error message: Error res

Nsenter The Nsenter tool is part of the Util-linux package since version 2.23. It provides access to the namespace of another process. Nsenter requires root privileges to work properly. Unfortunately, Util-linux is still at version 2.20 in Ubuntu 14.04. To install the latest version (2.24) Proceed as follows: Cd/tmp Curl https://www.kernel.org/pub/linux/utils/util-linux/v2.24/util-linux-2.24.tar.gz | tar-zxf- CD util-linux-2.24 ./configure--without-ncurses make nsenter CP Nsenter/usr

1. When using MAVEN, the project first adds the auto-install MAVEN to the global Tool configuration and then adds the Maven top-level MAVEN targets in the project's build The Maven ID you just added is selected in version, otherwise the following error is reported:Fatal:command Execution Failedjava.io.IOException:Cannot Run program ' MVN ' (in directory/var/jenkins_home/workspace/ Jettydocker "): error=2, No such file or Directoryat Java.lang.ProcessBuilder.start (processbuilder.java:1048) at Hu