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What do ci and cd mean in docker?

In docker, ci refers to Continuous Integration (Continuous Integration), and cd refers to Continuous Deployment (Continuous Deployment); "CI/CD" is a method of frequently delivering applications to customers by introducing automation in the application development phase. Its core concepts are continuous integration, continuous delivery and continuous deployment.

Jul 25, 2022 pm 03:45 PM

Docker

A brief introduction to Java Servlet programs

This article brings you relevant knowledge about Java, which mainly sorts out issues related to Servlet. Servlet is a Java program that runs on the server (tomcat). It is a set of specifications of Sun Company, which are dynamic resources, used to receive client requests, process requests, and respond to dynamic resources of the browser. Let's take a look at them together. I hope it will be helpful to everyone.

Jul 19, 2022 pm 01:46 PM

java

What is the difference between docker and jenkins

The difference between docker and jenkins: 1. Docker is developed based on go language, while jenkins is developed using java; 2. docker adopts the "Apache 2.0" open source protocol, and jenkins adopts the MIT open source protocol; 3. docker is a virtualization container, which is a virtual machine , Jenkins is used for continuous, automated building and testing of software projects.

Jul 14, 2022 am 10:29 AM

Docker

How to check whether tomcat starts successfully in linux

3 methods: 1. Execute "top". If the output service information contains java, the startup is successful; 2. Execute "ps -ef|grep tomcat". If the output process information contains tomcat, the startup is successful; 3. , use wget+tomcat address, if the download data can appear, the startup is successful.

May 24, 2022 pm 05:13 PM

linux

What are the official docker images?

The official docker images include: 1. nginx, a high-performance HTTP and reverse proxy service; 2. alpine, a lightweight Linux distribution for security applications; 3. busybox, which integrates more than 300 commonly used Linux commands and tool software; 4. ubuntu; 5. PHP, etc.

May 12, 2022 pm 02:23 PM

Docker

What are the PHP environment building tools?

PHP environment building tools include: 1. phpStudy, which is a program integration package for PHP debugging environment; 2. WampServer, which is an integrated software package of server, PHP interpreter and MySQL database; 3. XAMPP, which is an integrated software package for website building. ; 4. Pagoda Panel is a server management software.

May 10, 2022 pm 08:21 PM

php

What is port mapping in linux

Port mapping, also known as port forwarding, refers to mapping the port of the IP address of an external host to a computer in the intranet. When a user accesses this port of the external network IP, the server automatically maps the request to the corresponding machine inside the LAN; This can be achieved by using a dynamic or fixed public network IP routing ADSL broadband router.

May 09, 2022 pm 01:49 PM

linux

What middleware is available in linux?

Linux middleware includes: 1. tomcat, a server software with servlet specifications; 2. weblogic, a middleware based on j2ee architecture, which simplifies the development of portable and scalable application systems; 3. jetty, written in Java language , can realize automated testing; 4. JBoss, etc.

Apr 29, 2022 pm 06:30 PM

linux

How to solve the problem of being unable to access centos after installing tomcat

Solution: 1. Use "systemctl start firewalld" to open the firewall; 2. Check whether port 8080 is open. If not, open port 8080; 3. Use "firewall-cmd --reload" to restart the firewall and access it again. Successfully accessed.

Apr 20, 2022 pm 05:03 PM

centos

Where is the linux tomcat directory?

The Linux tomcat directory is under "usr/local/", and the full path is "usr/local/tomcat"; developers can use the find command to view the tomcat installation directory, and only need to execute the "find / -name *tomcat*" command. Can.

Mar 25, 2022 pm 03:01 PM

linux tomcat目录

Redis detailed analysis of master-slave replication, sentinels and clusters

This article brings you relevant knowledge about redis, which mainly introduces issues related to the three modes of master-slave replication, sentinel and cluster, as well as distributed locks, system optimization, etc. I hope it will be helpful to everyone. .

Mar 22, 2022 pm 06:17 PM

redis

What is linux port forwarding

In Linux, port forwarding refers to using Nginx to monitor the port. When an HTTP request arrives, it matches the HOST and other information of the HTTP request with its configuration file and forwards it to the corresponding application; port forwarding can be used to access domain names without adding a port. .

Mar 11, 2022 am 10:41 AM

linux

Can docker images run cross-platform?

Docker images can run across platforms; as long as the system architecture is the same, the same image can be used. The x86 image can only be used on the x86 system, and the arm image can only be used on the arm system. The docker image only simulates a container. The environment has little to do with the host machine.

Mar 08, 2022 pm 02:58 PM

docker

What does linux operation and maintenance do?

The work done by Linux operation and maintenance: 1. Service monitoring; 2. Service fault management; 3. Service capacity management; 4. Service performance optimization; 5. Service global traffic scheduling; 6. Service task scheduling; 7. Service security guarantee; 8 , Automatic service release and deployment; 9. Service cluster management; 10. Database management, etc.

Mar 02, 2022 pm 02:08 PM

linux 运维

How to modify tomcat port number in linux

Method: 1. Use the vim command to enter and edit the "server.xml" file. The syntax is "vim/installation path/tomcat full name/conf/server.xml"; 2. Enter "/8080" at the bottom to find the specified port number. Modify; 3. After the modification is completed, enter ":wq" to save and exit.

Jan 13, 2022 pm 03:55 PM

linux