How to install tomcat in docker and deploy the Springboot project war package

It's simple, just go to the tutorial, blogger

1. First start docker

service docker start

2. Pull the tomcat image.

docker pull tomcat:8-jdk8

If you don't add the 8-jdk8 tag, the latest version will be pulled by default, which is the latest official version.

3. After the installation is complete, create a container and start tomcat

docker run --name tomcat -p 8080:8080

If a 404 error occurs when accessing the IP+port after normal installation, enter the tomcat directory, delete the original webapps directory, and rename webapps.dist to webapps. The command is as follows

rm -rf webapps

mv webapps.dist webapps

4. Check the container operation status

docker ps

5. Then package the springboot project, taking the war package as an example

<dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <exclusions>
        <exclusion>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-tomcat</artifactId>
        </exclusion>
      </exclusions>
    </dependency>

First exclude the tomcat that comes with springboot

<plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
      </plugin>

Then add the Maven packaging component

6. Package in IDEA, then check the target folder of the project, find the corresponding war package, and copy it to the corresponding directory in Linux

7. Copy the war package into the webapps directory of the tomcat container and check whether it is copied correctly

docker cp consumer-0.0.1-SNAPSHOT.war 7d64a9eaa278:/usr/local/tomcat/webapps

docker exec -it 7d64a9eaa278 /bin/bash

8. Restart tomcat and access ip+port+project name again

docker restart 7d64a9eaa278

Done!

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