Programmer Group

I learned Docker briefly before. At that time, it was to quickly deploy a project. It passed quickly. I was a little unfamiliar with the writing of Dockerfile files. So I wrote this article. I hope I can help you!!! 1, What is Dockerfile? Concept: Dockerfile is a build file used to build Docker images. It is a script composed of a series ...

What is a container data volume Container data volume is the mounting of the directory. Mount the directory of our container on the host, so as to realize the file sharing function between the host and the container; Why container data volumes docker's idea is to package the application and environment into a mirror image; But what about the ...

What is docker Docker's idea comes from the container. What problem does the container solve? In a large ship, the goods can be placed neatly. And all kinds of goods are standardized by containers, and containers will not affect each other. Then I don't need a ship for fruit and a ship for chemicals. As long as the goods are well sealed in the ...

kubeadm is a tool launched by the official community for rapid deployment of kubernetes clusters. This tool can complete the deployment of a kubernetes cluster through two instructions: Create a Master node kubedm initJoin the Node to the current cluster $kubedm join < IP and port of the master Node > Installation requirements Before y ...

1. Comparison between docker and virtual machine Compared with traditional virtual machines, Docker has fast startup speed and small footprint. 2. Docker component 2.1 docker server and client 2.2 docker image and container Mirroring is the foundation for building containers. 2.3 Registry registry Used to save user built images. I ...

In the past work, we have built a technical platform using microservices, containerization and service choreography. In order to improve the R & D efficiency of the development team, we also provide a CICD platform to quickly deploy the code to the Openshift (enterprise class Kubernetes) cluster. The first step of deployment is the contain ...

catalogue ​ 5, Deploy master components 1. Operate on the master01 node 6, Deploying Woker Node components 1. Operate on the master01 node 2. Operate on node01 node 3. Operate on the master1 node 4. Operate on node01 node 5. Operate on the master01 node   6. Operate on node01 node 7.node02 node deployment (method 1) node02 node ...

1, Install docker 1. Download offline package Index of linux/static/stable/x86_64/ 2. Decompression tar -xzvf docker-18.06.3-ce.tgz (ce version means community free version, please specify   The difference between docker with ce and without ce) 3. Copy the extracted folder to the / usr/local directory cp docker-18.06.3-ce /usr/local ...

Docker configures the master-slave environment of PostgreSQL13 preface PostgreSQL database supports a variety of replication solutions to build high availability, scalable and fault-tolerant applications, one of which is pre write log (WAL) delivery. This solution allows the use of file based log shipping or streaming replication, or, wher ...

Background: Deploy multiple static resources on docker, hoping to access them directly using domain name instead of domain name + port number Specific ideas: First, use docker to create three nginx containers 1. nginx port 81 of web1 website deployment 2. nginx port 82 for web2 website deployment 3,proxy_nginx port 80 for proxy forwa ...