In this lesson, we'll find out the basics of running Docker containers. We'll go to the download images from Docker Hub, what's happens when you stop containers, how to restart a container on Ce it ' s been stopped, and also how to remove containers.Run a container:Docker run MONGO // run the container, if container
/docker.ioDOCKER="/usr/bin/docker.io"
Restart the Docker service:
$ sudo service docker.io restartManage Docker Container containers
If you want to create a new Ubuntu operating system under the new Docker container, you first need a Docker image of Ubuntu. The following
replicable development/testing environment, or deploy applications in the security sandbox, the container will be very useful.
Docker is an open-source tool developed to facilitate the deployment of Linux containers. Docker is rapidly becoming a de facto standard in container technology and has been adopted by major Linux distributions such as Ubuntu and red hat
Simply put, a container is a running instance of a mirror, and the difference is that it has an extra layer of writable files.If you think of a virtual machine as a complete set of operating systems that simulate running (providing a run-state environment and other system environments) and applications running on it. Then Docker containers are one or a set of applications that are geographically run, and th
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Description
--name: The name of the container (can be customized)
-d-p 2,222:22 (using the host's 2222 port to map to the 22 port of the Docker container)
If you start an error,
Conflict. The name "/base" is already on use by container
Remove the old container and start again.
3. View Container:
Docker PS (view running
treats GID in the same way as the UID.
Many students simply understand the Docker container as a lightweight virtual machine, although this simplifies the difficulty of understanding container technology but it also leads to a lot of misunderstandings. In fact, unlike virtual machine technology: All containers running on the same host share the same kernel (the host's kernel). The great value of being cont
Ubuntu under Cadvisor+influxdb+grafana+supervisord Monitor host and Docker containers (running on the host)Applies to the class Ubuntu system. AMD64.1. INFLUXDB: (Consider converting Influxdb to Prometheus later)Https://influxdb.com/docs/v0.8/introduction/installation.html#ubuntu-debian(You can only choose the way the Deb is installed.) There's no way to compile the code. Go development is not mature and st
Run the following command
Sudo docker run -- RM busybox echo helloworld
The/var/log/upstart/docker. log is as follows:
2014/08/07 00:12:02 POST /v1.13/containers/create[339dd1d9] +job create()[339dd1d9] -job create() = OK (0)2014/08/07 00:12:02 POST /v1.13/containers/5abf93
Basic concepts of Docker mirrors, containers, and warehouses
Mirror
A 1.Docker mirror is a read-only template.
For example, a mirror can contain a complete CentOS operating system environment in which only httpd or other applications required by the user are installed.
2. Mirroring can be used to create Docker
Today continue to look at the Docker related things.Before, to understand the data volume and volume container is because when you first understand the Docker mode of work encountered two questions: about Docker data persistence, and Docker how to share data. By understanding data volumes and data volume
article, if reproduced, please indicate the source and link. From flying away cannot: http://www.cnblogs.com/hanyifeng/p/6293620.htmlEnter the container:[email protected] ~]# Docker exec-it Cadvisor/bin/ashUse the DD command, as follows:/# Swapoff-addif=/dev/zero of=/dev/shm/test bs=1k count=80000kdd' /dev/shm/test': No space left on device65537+0 in 65536+0 Records outThen observe the Grafana graph inter
How to delete docker images/containers
Docker images often occupy hard disk space unconsciously. To clear redundant images, you can use the following methods:
1. Enter the root permission
Sudo su
2. Stop all container to delete the images:
Docker stop $ (docker ps-a-q)
/bin/mysqld_safe"]
And then based on Dockerfile to create the image
sudo docker build-t kongxx/mysql_server.
1.2 Create a mysql_client directory and create a dockerfile file under it, as follows
From CENTOS:CENTOS6
maintainer fanbin Kong "kongxx@hotmail.com"
RUN yum install-y MySQL
And then based on Dockerfile to create the image
sudo docker build-t kongxx/mysql_client.
1.3 After
Use of docker containers
1. Links between containers:
Run a container and give it a name, for example:
dockerrun-d-p0.0.0.0:4455:22-p0.0.0.0:8080:80--nameonecentos6-ssh
Run another container.
dockerrun-d-p0.0.0.0:4456:22-p0.0.0.0:8088:80--link/one:twocentos6-ssh2env
Note:
/One: Two
One is the name of the first container, and two is the name of the second co
Let's start with today's two main characters: NFS and DockerWhat is NFS?The NFS (Network File system), which is one of the file systems supported by FreeBSD, allows computers in the network to share resources across TCP/IP networks. In an NFS application, a local NFS client application can transparently read and write to files located on the remote NFS server, just as you would access a local file. Excerpt from Baidu EncyclopediaWhat is Docker?This is
behavior control of ROS containers in Docker on distal Turtlebot
Docker's existing network model is simple, scalability and flexibility do not meet the needs of many complex scenarios, most of the time users need to customize the Docker container network, rather than using Docker created by default IP and NAT rules.
I
Macvlan network driver after version 1.12, so that we can more easily configure the bridging network for the container.MacvlanAs the name implies, the principle of Macvlan is to virtual on the host physical network card, multiple sub-network card, through the different MAC address in the Data link layer (the database link) for network data forwarding, it is relatively new network virtualization technology, need more new kernel support (Linux kernel v3.9–3.19 and 4.0+).Using MacvlanDocker Networ
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