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如何安装项目需要的中间件环境

项目中设计到的中间件有Mysql、Redis、Kafka，本文介绍如何在本地进行安装这些中间件

安装Mysql​

下载镜像​

docker pull mysql:5.7

创建数据卷​

docker volume create mysql57-data

启动容器​

docker run -d \
  --name mysql57 \
  -p 3306:3306 \
  --restart unless-stopped \
  -e MYSQL_ROOT_PASSWORD='设置你的密码' \
  -e MYSQL_ROOT_HOST='%' \
  -e TZ='Asia/Shanghai' \
  -v mysql57-data:/var/lib/mysql \
  mysql:5.7 \
  --character-set-server=utf8mb4 \
  --collation-server=utf8mb4_unicode_ci
  • --name mysql57 容器名为mysql
  • -p 3306:3306 映射宿主机和容器的端口号
  • -e MYSQL_ROOT_PASSWORD='设置你的密码' 要设置你的数据库密码
  • -v mysql57-data:/var/lib/mysql 将Mysql的数据卷持久化到宿主机

安装Redis​

下载镜像​

docker pull redis:6.0.8

启动容器​

docker run -d \
  --name redis \
  -p 0.0.0.0:6379:6379 \
  --restart unless-stopped \
  redis:6.0.8 \
  redis-server --requirepass "修改成你自己的密码" --bind 0.0.0.0

安装Zookeeper​

下载镜像​

docker search zookeeper
docker pull zookeeper

配置文件​

新建文件夹

mkdir -p /usr/local/zookeeper/conf

将zookeeper的配置文件放入此文件夹内

配置文件 文件名zoo.cfg​

# The number of  milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/data
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1

## Metrics Providers
#
# https://prometheus.io Metrics Exporter
#metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
#metricsProvider.httpPort=7000
#metricsProvider.exportJvmInfo=true

启动容器​

docker run -d \
--name zookeeper \
--privileged=true \
-p 2181:2181 \
--restart=always \
-v /usr/local/zookeeper/data:/data \
-v /usr/local/zookeeper/conf:/conf \
-v /usr/local/zookeeper/logs:/datalog \
zookeeper

安装Kafka​

下载镜像​

docker search wurstmeister/kafka
docker pull wurstmeister/kafka

启动容器​

docker run -d --name kafka \
-p 9092:9092 \
-e KAFKA_BROKER_ID=0 \
-e KAFKA_ZOOKEEPER_CONNECT=zookeeper地址:2181 \
-e KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://本地ip:9092 \
-e KAFKA_LISTENERS=PLAINTEXT://0.0.0.0:9092 wurstmeister/kafka
  • -e KAFKA_ZOOKEEPER_CONNECT 指定zookeeper地址，如果zookeeper和kafka部署在一台云服务器，则地址可配置内网ip
  • -e KAFKA_ADVERTISED_LISTENERS Kafka 的一个环境变量，用于指定 Kafka 将如何通告客户端它在外部可访问的地址。如果是云服务器，则得是公网ip，因为客户端连接的kafka地址要和这个一样
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