Shulou(Shulou.com)05/31 Report--

Most people do not understand the knowledge points of this article "how to deploy the springboot project to Tencent Cloud by Docker", so the editor summarizes the following, with detailed content and clear steps, which can be used for reference. I hope you can learn something after reading this article. Let's take a look at this article "how to deploy the springboot project to Tencent Cloud by Docker".

Configuration of the server

The server configuration is summarized into three, firewall, port, and security group

1. Firewall

View firewall status

Firewall-cmd-state

If it is not enabled, the firewall will be turned on.

Systemctl start firewalld.service

2. Port

Add ports that are open to the public

Firewall-cmd-zone=public-add-port= port number / tcp-permanentfirewall-cmd-zone=public-add-port=80/tcp-permanent

Reload the firewall

Firewall-cmd-reload

View the development port

Firewall-cmd-list-ports

3. Security group (configured only by CVM, such as Tencent Cloud I use)

Security group is a virtual firewall with stateful packet filtering feature, which is used to set network access control for instances such as CVM, load balancer and cloud database, and to control the inbound and outbound traffic at the instance level. it is an important means of network security isolation.

You can configure security group rules to allow or disable outbound and inbound traffic for instances in a security group. (documents intercepted from Tencent Cloud)

Install MySql

1. Pull the mysql version. Here is mysql5.7.

Docker pull mysql:5.7

2. To run mysql, the open port is 3306, the password is 123456, and-d is running in the background

Docker run-p 3306 MYSQL_ROOT_PASSWORD=123456 3306-- name mysql-e MYSQL_ROOT_PASSWORD=123456-d mysql:5.7

2.1 restart docker if there is an error

Systemctl restart docker

If you also report an error, such as: the container already exists

2.2 View containers and delete containers

View running containers: docker ps view all containers: docker ps-a view last run containers: docker ps-l view stopped containers: docker ps-f status=exiteddocker rm container name (container ID) for example: docker rm mysql

3. Enter the MySQL container, and the following shows that there is no problem with mysql. The installation is successful!

Docker exec-it container id / bin/bash

Ctrl+p+q can exit this container by running in the background

4. The local MySQL visualization software connects to the docker database (I use sqlyog)

Execute sql script to import database

Package the springboot project into a jar package

1. Change the localhost in the url in applicayion.yml to the public network ip of your server, and change the password to the password of mysql on your server.

2. Package the project, and double-click package

The package is successful as follows, using the first jar package.

.jar.original is a normal jar package that does not contain dependencies

.jar is an executable jar package that contains all the dependencies in pom and can be executed directly with the java-jar command

Write Dockfile files

Package the springboot jar package project into a Docker image

1. Create a docker folder under / home/

2. Upload jar package to / home/docker/ using xftp

3. In the / home/docker directory, enter the following instructions to start writing the Dockerfile file

Vim Dockerfile

Write the following content in vim to save

FROM java:8ADD Blog_jpa-0.0.1-SNAPSHOT.jar / blog.jarEXPOSE 8080ENTRYPOINT ["java", "- jar", "/ blog.jar"]

Explanation:

# Note that the docker command is all capitalized, which is the rule. The # From keyword indicates the environment on which the jar package depends. Java:8 is the equivalent of jdk1.8FROM java:8 # ADD command # blog-0.0.1-SNAPSHOT.jar: this is the name of the jar package you uploaded. # / blog.jar: this is a custom name. But be careful to have the previous author name of / ADD blog-0.0.1-SNAPSHOT.jar / blog.jar # MAINTAINER. You can delete or not write. The port number EXPOSE 8080 # / blog.jar exposed by the MAINTAINER zhangxiaosan # EXPOSE project should have the same name here as after the ADD command. ENTRYPOINT ["java", "- jar", "/ blog.jar"]

4. Execute the following command under the docker folder to generate a custom image

Docker build-t blog:1.0.

Explanation:

Description:

Blog represents the name of the image to be packaged. Write according to your actual situation.

: 1.0 represents the version number. If you don't need to write it, it defaults to latest.

. Represents the current directory. This is why you always operate in the step-1 folder, and the Dockerfile is in this folder.

If the previous Dockerfile is not in the folder in step 1, you need to specify the corresponding address.

5. Docker images can see that the image has been created, and then run the image.

Docker run-- name blog-d-p 8015 blog:1.0

Docker logs Container id View Container Operation Log

Deployment complete!

Visit

Delete redo (update) mirror

Updated the project, deleted the previously deployed jar package, deleted all the container images, and then put the new jar under / home/docker to generate a new image.

1. Delete the container and image of the original project jar package

You can delete an image according to the image id. The command is as follows: docker rmi image ID

Delete a single mirror (- f force deletion): docker rmi-f mirror ID

1. Delete the specified container: docker rm container name (container ID) for example: docker rm mycentos112. When deleting a container, if the container is running, an error will be reported. You must first stop the container # View the running container docker ps# delete the running container docker rm mycentos11# stop the container docker stop mycentos11 start the container docker start container name (or container ID) for example: docker start mycentos2# view all containers docker ps-a

2. After updating the jar package, generate a new image

Docker build-t blog:1.0.

3. Run the image

Docker run-- name blog-d-p 80Docker 808080 blog:1.0 is about "how to deploy springboot project to Tencent Cloud by Docker". I believe you all have some understanding. I hope the content shared by the editor will be helpful to you. If you want to learn more about it, please follow the industry information channel.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.