Introduction to Docker Quick Deployment of SpringBoot Project

1. Install Docker

First open the Linux environment and enter the following command to install:

Install yum install docker

Check whether the installation is successful docker --version

#Start systemctl start docker

If the download is very slow, you can switch to the domestic Alibaba Cloud image to download:

Change the image source sudo vim /etc/docker/daemon.json

The content is as follows:
{
 "registry-mirrors": ["https://m9r2r2uj.mirror.aliyuncs.com"]
}

Save and exit, restart Docker:
systemctl restart docker

2. Install Redis

First, search for redis in DockerHub. Click to enter the details page. Scroll down to see how to use it. If you need to select a specific version, there are Supported tags for us to choose from. Then, if you want to pull the latest version, scroll down to the command tutorial as follows:

Pull the redis image docker pull redis

View local redis image docker images

Run redis
docker run --name myredis -p 6379:6379 -d redis redis-server --appendonly yes

docker run means running --name myredis means giving it a name called myredis
-p 6379:6379 means mapping the server's port 6379 to docker's port 6379, so that the docker port can be accessed through the server's port
-d means running redis redis redis-server as a background service --appendonly yes means turning on the persistent cache mode, which can be saved to the hard disk

3. Install MySQL

Pull down the MySQL image:
docker pull mysql:5.7.27

Docker runs MySQL:
docker run --name mymysql -e MYSQL_ROOT_PASSWORD=admin -d -p 3306:3306 mysql:5.7.27 

4. Install RabbitMQ

It can be done with one line of command. Note that RABBITMQ_DEFAULT_PASS=password means setting the password. This line of command has secretly performed operations such as pulling down the image:

docker run -d --hostname my-rabbit --name myrabbit -e RABBITMQ_DEFAULT_USER=root -e RABBITMQ_DEFAULT_PASS=admin -p 15672:15672 -p 5672:5672 rabbitmq:management

5. Install ElasticSearch

The pull-down mirror operation is omitted:

start up:
docker run -p 9200:9200 -p 9300:9300 -d --name es_643 elasticsearch:6.4.3

Enter the image:
docker exec -it es_643 /bin/bash

Install the Chinese word segmentation plugin:
./bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.4.3/elasticsearch-analysis-ik-6.4.3.zip

Exit and restart the image exit
docker restart es_643

6. Build the Docker image of the project

We use the command to pull the project from GitHub:

Drop-down items (eblog):
clone https://github.com/MarkerHub/eblog.git

Go into the folder:
cd eblog

Pack:
mvn clean package -Dmaven.test.skip=true

Upload the compiled jar package to the Linux server!

Next, write DockerFile, which can build our packaged jar package code into an image:

FROM java:8
EXPOSE 8080

VOLUME /tmp

ENV TZ=Asia/Shanghai
RUN ln -sf /usr/share/zoneinfo/{TZ} /etc/localtime && echo "{TZ}" > /etc/timezone

ADD eblog-0.0.1-SNAPSHOT.jar /app.jar
RUN bash -c 'touch /app.jar'
ENTRYPOINT ["java","-jar","/app.jar"]

FROM java:8 indicates that it is based on the jdk8 environment
EXPOSE 8080 means the exposed port is 8080
VOLUME /tmp means mounting to the /tmp directory
ADD eblog-0.0.1-SNAPSHOT.jar /app.jar means copying the jar package to the root directory of the image service and renaming it app.jar
RUN bash -c 'touch /app.jar' means to create app.jar
ENTRYPOINT ["java","-jar","/app.jar"] means to execute the startup command java -jar

Next, we install Dockerfile and use DockerFile to build eblog-0.0.1-SNAPSHOT.jar into a mirror:

Build the image docker build -t eblog .

View docker images

After this step is completed, we can complete the preparation work. Next, we will start our project directly.

7. Run the project image to complete the project startup

The command is as follows:

docker run -p 8080:8080 -p 9326:9326 --name eblog --link es_643:ees --link myrabbit:erabbit --link mymysql:emysql --link myredis:eredis -d eblog

-p 8080:8080 -p 9326:9326: 9326 is the ws port needed for instant messaging --link es:ees indicates the associated container, and the container es is aliased as ees

View eblog print log:

docker logs -f eblog

So far the project has run successfully!

Notice: Using DockerCompose is easier

This is the end of this article about the introduction of Docker rapid deployment of SpringBoot project. For more relevant Docker deployment SpringBoot content, please search for previous articles on 123WORDPRESS.COM or continue to browse the following related articles. I hope everyone will support 123WORDPRESS.COM in the future!