This article focuses on the Docker image, container, warehouse basic concepts of knowledge.
Docker concept
Docker is an open source application container engine that allows developers to package their apps and dependencies into a portable
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external routes.BridgeWhen the container is started, parameters are used --network="bridge" or this parameter is not specified. This is the default network mode for Docker. It allows containers on this host to communicate with each other and also allows the container to access the host's external network. Shows the Docker
use Docker-enter to enter Docker containerDocker containers do not have sshd service, but also want to enter Docker how to do, we can use the nsenter into the Docker container namespace namespace to virtual login Docker container.
In front of our lab environment, only one Docker host container is running on this host. However, in a real environment, there will be multiple host containers that start, run, stop, and destroy related containers in these hosts, regardless of whether they are located in the same host.How can we manage such a multi-host environment efficiently?The first problem we faced was installing and configuring
. NET microservice and Docker container,. netdocker container. NET microservice: Architecture containers and Docker introduction for containerized. NET applications what is Docker? Docker term
?? Long T?inux, we generally use IP command to create network Namespace (Docker source code, it does not use IP command, but its own implementation of the IP commands within some of the functions-is used raw socket to send some "strange" data, hehe). Here, I still use IP com
mirror image in a dockerfile file, typically based on a system-type image, then describe what software to install, what configuration to do, what ports to advertise, and so on, and execute the Docker build command to generate this image. You can publish your own images in a public or private mirrored warehouse.
Internet
Network, network. The containers created by default have a bridged type of network that can communicate with each other, but the
Part-2 container (Container) IntroductionThe Docker architecture has three levels, from high to low as follows:
Stack (Stack)
Services (Service)
Containers (Container)
These are now exposed in the layer of the container, similar to the underlying founda
created by default by Docker. Each container you create is connected to the network through this bridge.
Custom Linux Bridge
To customize a bridge, follow these steps. You can assign a subnet behind the bridge and assign an address to the subnet. The following command assigns the IP address segment 10.0.0.0/24 to the Docker
1. Docker Container Restart policy
The restart policy for Docker containers is a start-up strategy for production environments that can be ignored during the development process.
Docker container restarts are done by the Docker da
my terminal also by root@201 data into root@f41d95a52943, indicating that entered the container terminal, to exit the input exit can be. If you want to open a new terminal into the container we started before, first query the container ID
[root@201 data]# Docker ps-a
CONTAINER
The connection between Docker containers can be a lot of convenience, and the following records how the Redis container connected to it is connected through environment variables within its own container.Start with a Redis docker container named Redis, and then start your own Docke
This is a creation in
Article, where the information may have evolved or changed.
"Editor's word" is the collective idea of the operation of the company, but also a deep understanding of technology people, this article is the author in the practice of immutable infrastructure concept of the process of understanding the container, this is the first article, This paper focuses on the differences between traditional operational tools such as chef and
, you need to docker-compose.yml version: ‘2‘ change it to the version version: ‘2.1‘ here.Really is twists, finally is no problem, compile also can pass. But when debugging F5, but it happens to have remote debugging errors ...This time, run the Docker PS command and you can see that our container has startedLet's take a look at the
Docker provides a simple command of the Operation container. But his command of the container does not belong to the system.
Because it is too simple, there must be a lot of deficiencies. For example, starting order, dependency checking, failure service recovery, and so on, all need a mature system service management software to complete.
This article uses Redis
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[[email
use shipyard to manage DockerDocker need a management tool to consolidate and manage, shipyard is a good choice.Docker management tools run with Docker, the simple steps are as follows:An example of a RETHINKDB data volume:Docker run-it-d--name shipyard-rethinkdb-data \--entrypoint/bin/bash shipyard/rethinkdb-lUse the data volume you just created to start a rethinkdb instance againDocker Run-it-p-D--name shipyard-rethinkdb \--volumes-from Shipyard-ret
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