Docker installs common software (mysql, tomcat, redis, nginx)

The installation of docker can go to my other blog docker blog link

install mysql

Determine the version to pull the mirror

docker pull mysql:5.7.36

start mysql service

Start the mysql service, run it in the background, specify the root user password, and specify the container name

 docker run --name mysql5.7 -e MYSQL_ROOT_PASSWORD=123456 -d -p 3306:3306 mysql:5.7.36

• --name container name
• -e MYSQL_ROOT_PASSWORD=xxx Specify a password for the root user
• -d run in the background
• -p host port: container port

The above run command does not use the data volume and persists the data to the host system

Start mysql + data volume persistence

Start the mysql service, run it in the background, specify the root user password, specify the container name, and use the data volume to persist the data to the host system

Note: According to the dockerhub description, it is known that the mysql storage file directory is placed in the container in this directory /var/lib/mysql

docker run --name mysql5.7 -e MYSQL_ROOT_PASSWORD=123456 -d -p 3306:3306 -v mysqldata:/var/lib/mysql mysql:5.7.36

Modify mysql configuration

If you want to modify the mysql configuration file according to your own needs, you can also mount the corresponding directory together

docker run --name mysql5.7 -e MYSQL_ROOT_PASSWORD=123456 -d -p 3306:3306 -v mysqldata:/var/lib/mysql -v mysqlconfig:/etc/mysql/conf.d -v mysqllog:/var/log/mysql mysql:5.7.36

docker exec -it 容器id bash

 mysql -u root -p123456

 SHOW VARIABLES LIKE 'character%';

If the character set is incorrectly inserted into Chinese, there will be problems

Modify database configuration through data volumes

 cd /var/lib/docker/volumes/mysqlconfig/_data
vim my.cnf

[client]
default-character-set=utf8
[mysql]
default-character-set=utf8
[mysqld]
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
skip-name-resolve

Be sure to restart the container

install tomcat

pull image

docker pull tomcat:9.0-jdk8-corretto

Start a basic tomcat service

docker run -d -p 8080:8080 --name tomcat tomcat:9.0-jdk8-corretto

• --name container name
• -d run in the background
• -p host port: container port

Access discovery by ip address

It is found that the webapps directory is empty.

After the modification, you can visit the tomcat page again,

or you can directly pull the image of the boss.

pull image

docker pull tomcat:8.0.52-jre8

run

docker run -d -p 8080:8080 --name tomcat tomcat:8.0.52-jre8

Automount via data volume

Note that the directory where the web application is deployed in the container is /usr/local/tomcat/webapps and the configuration file is /usr/local/tomcat/conf

docker run -d -p 8080:8080 --name tomcat -v apps:/usr/local/tomcat/webapps tomcat:8.0.52-jre8

Create a folder in the directory corresponding to the data volume, write index.html, and access ip::8080/emp/index.html

Mount configuration file directory

docker run -d -p 8080:8080 --name tomcat -v apps:/usr/local/tomcat/webapps -v confs:/usr/local/tomcat/conf tomcat:8.0.52-jre8

If the configuration information does not take effect immediately (such as port), it may be necessary to create a new container with the data volume to take effect.

Manually mount tomcat9 and run

# -v表示挂载，前面的目录为宿主机目录结构，后面的目录为容器中的目录结构
docker run --name tomcat  -p 8080:8080 
-v /usr/local/tomcat/webapps:/usr/local/tomcat/webapps 
-v /usr/local/tomcat/conf:/usr/local/tomcat/conf -d tomcat:9.0-jdk8-corretto 

Here we start another tomcat container, and then copy a server.xml file from the container into the mount conf folder

docker run --name tomcat1  -p 8080:8080  -d tomcat:9.0-jdk8-corretto 
docker exec -it ad37af bash

copy command

docker cp tomcat1:/usr/local/tomcat/conf/  /usr/local/tomcat/

restart tomcat

docker start tomcat

Because the 9 version of tomcat webapps is empty, you need to copy webapps.dist to access

 cd webapps.dist/
 cp -r ./* ../webapps
 

access to success

install redis

pull image

docker pull redis:6.2.5

Automatically mount and run containers

docker run  -p 6379:6379 --name redis --privileged=true -v redisconfig:/etc/redis -v redisdata:/data -d redis:6.2.5 redis-server /etc/redis/redis.conf

Copy the configuration file

 cp ./redis.conf /var/lib/docker/volumes/redisconfig/_data

Remember:
do not configure daemonize yes, otherwise the container cannot be started: stop immediately after starting

Manual mount installation steps

mkdir -p /mydata/redis/conf
touch /mydata/redis/conf/redis.conf

Create a new file redis.conf in the newly created redis/conf with the following contents:

#bind 127.0.0.1 //允许远程连接
protected-mode no 
appendonly yes //持久化
requirepass 123456 //密码

start up

docker run -p 6379:6379 --name redis -v /mydata/redis/data:/data \
-v /mydata/redis/conf/redis.conf:/etc/redis/redis.conf \
-d redis redis-server /etc/redis/redis.conf