关闭防火墙

# 关闭防火墙
systemctl stop firewalld.service
# 禁止防火墙开机启动
systemctl disable firewalld.service

启动或重启docker

# 启动docker
systemctl start docker

# 重启docker
systemctl restart docker

redis

加载镜像

docker load < redis-docker-image.gz

启动容器

docker run -d --name redis7000 -p 7000:6379 redis

jedis 连接测试

新建测试项目

pom.xml

添加 redis 和 junit 依赖

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>cn.tedu</groupId>
  <artifactId>docker</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <dependencies>
      <dependency>
          <groupId>redis.clients</groupId>
          <artifactId>jedis</artifactId>
          <version>2.9.0</version>
      </dependency>
      <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.12</version>
      </dependency>
  </dependencies>
</project>

编写测试类

package docker;
import org.junit.Test;
import redis.clients.jedis.Jedis;
public class Test1 {
    @Test
    public void test1() {
        Jedis j = new Jedis("192.168.64.150", 7000);
        j.set("key1", "value1");

        String v = j.get("key1");
        System.out.println(v);

        j.close();
    }
}

在容器中查看数据

# 进入容器
docker exec -it redis7000 bash
# 运行redis客户端工具
redis-cli

127.0.0.1:6379> keys *
1) "key1"
127.0.0.1:6379> get key1
"value1"

启动多个 redis 容器

启动三个redis容器,将端口分别映射到7000,7001和7002端口

# 如果7000已经启动,不必重复启动
docker run -d --name redis7000 -p 7000:6379 redis
docker run -d --name redis7001 -p 7001:6379 redis
docker run -d --name redis7002 -p 7002:6379 redis
# 查看容器
docker ps -a

[root@localhost ~]# docker ps -a
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                    NAMES
756f5227dd64        redis               "docker-entrypoint.s…"   6 seconds ago       Up 4 seconds        0.0.0.0:7001->6379/tcp   redis7001
bc87e35664c8        redis               "docker-entrypoint.s…"   13 seconds ago      Up 11 seconds       0.0.0.0:7002->6379/tcp   redis7002
c3700e3e4c73        redis               "docker-entrypoint.s…"   2 hours ago         Up 2 hours          0.0.0.0:7000->6379/tcp   redis7000

jedis 分片测试

编写测试方法

@Test
    public void test2() {
        JedisPoolConfig cfg = new JedisPoolConfig();
        cfg.setMaxTotal(500);
        cfg.setMaxIdle(20);

        List<JedisShardInfo> shards = new ArrayList<JedisShardInfo>();
        shards.add(new JedisShardInfo("192.168.64.150", 7000));
        shards.add(new JedisShardInfo("192.168.64.150", 7001));
        shards.add(new JedisShardInfo("192.168.64.150", 7002));

        ShardedJedisPool pool = new ShardedJedisPool(cfg, shards);

        ShardedJedis j = pool.getResource();
        for (int i = 0; i < 100; i++) {
            j.set("key"+i, "value"+i);
        }

        pool.close();
    }

在容器中查看数据

分别进入三个redis容器,执行 keys *查看结果

docker exec -it redis7000 redis-cli
docker exec -it redis7001 redis-cli
docker exec -it redis7002 redis-cli

容器互联

创建docker虚拟网络

docker network create --subnet=172.18.0.0/24 dockernet
ifconfig

mysql

加载 mariadb 镜像

docker load < mariadb-docker-image.gz

创建数据卷

docker volume create mysql-data

启动 mariadb 容器,并挂载数据卷

docker run -d --name mysql --net dockernet --ip 172.18.0.11 -v mysql-data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=root -p 3306:3306 mariadb
docker ps -a
docker inspect mysql

进入容器,登录mysql测试

docker exec -it mysql bash
mysql -uroot -p

连接数据库,导入数据

选择 资料/docker/EasyMall/easymall.sql

tomcat

加载 tomcat 镜像

docker load < tomcat7-docker-image.gz
docker image ls

启动 tomcat 容器

docker run -d --name tomcat --net dockernet --ip 172.18.0.12 -v /opt/webapps:/usr/tomcat/webapps -p 8080:8080 tomcat:7