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Nacos 高可用环境搭建（基于Docker）
发布时间：2022-06-25 发布网站：脚本宝典
脚本宝典收集整理的这篇文章主要介绍了Nacos 高可用环境搭建（基于Docker），脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。
Nacos 高可用环境搭建
Nacos 高可用环境 = Nacos 集群 + Nacos 持久化
参考：<(￣︶￣)↗Nacos官网 - 集群部署说明
@
目录
- Nacos 高可用环境搭建
- 1、创建 Docker 局域网
- 2、创建并启动1个 Nginx 容器，将容器加入局域网
- 3、创建并启动1个 MySQL 容器，将容器加入局域网
- 4、创建并启动3个 Nacos 容器，将容器加入局域网
- 5、验证上述容器能否相互 ping 通
- 6、配置 Nacos 持久化、集群
- 7、验证 Nacos 持久化是否生效
- 8、配置 Nginx 对 Nacos 的负载均衡
- 9、验证 Nginx 负载均衡是否生效
1、创建 Docker 局域网
-
创建 Docker 局域网
PS C:Usersxiao> docker network create MyNetwork 56b64b706d69bf2d3b30eb6d63c94bb110c74e16febf96c1b1b0aa687cc3d493 -
罗列所有局域网
PS C:Usersxiao> docker network ls NETWORK ID NAME DRIVER SCOPE 56b64b706d69 MyNetwork bridge local e19f31ab243a bridge bridge local 09b9f7e52530 host host local 3bb55566e6c5 none null local -
查看局域网详情
PS C:Usersxiao> docker network inspect MyNetwork [ { "Name": "MyNetwork", "Id": "56b64b706d69bf2d3b30eb6d63c94bb110c74e16febf96c1b1b0aa687cc3d493", "Created": "2022-01-27T11:58:16.195894307Z", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": {}, "Config": [ { "Subnet": "172.18.0.0/16", "Gateway": "172.18.0.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": {}, "Options": {}, "Labels": {} } ]
2、创建并启动1个 Nginx 容器，将容器加入局域网
-
创建并启动 Nginx 容器
<(￣︶￣)↗Nginx 实战 - 安装.md
-
将 Nginx 容器加入局域网
PS C:Usersxiao> docker network connect MyNetwork MyNginx -
检查 Nginx 容器是否成功加入局域网
PS C:Usersxiao> docker network inspect MyNetwork [ { "Name": "MyNetwork", "Id": "56b64b706d69bf2d3b30eb6d63c94bb110c74e16febf96c1b1b0aa687cc3d493", "Created": "2022-01-27T11:58:16.195894307Z", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": {}, "Config": [ { "Subnet": "172.18.0.0/16", "Gateway": "172.18.0.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": { "9ba1cfa5e902ba3f4cfebb6404d03f8c4cbe1aa418fc4ae682722c5882c88811": { "Name": "MyNginx", "EndpointID": "22e350022928c6e597a0bc217b84270525ab8400bb84d04387d63632f0b028eb", "MacAddress": "02:42:ac:12:00:02", "IPv4Address": "172.18.0.2/16", "IPv6Address": "" } }, "Options": {}, "Labels": {} } ]
3、创建并启动1个 MySQL 容器，将容器加入局域网
-
创建并启动 MySQL 容器
<(￣︶￣)↗MySQL 实战 - 安装.md
-
将 MySQL 容器加入局域网
PS C:Usersxiao> docker network connect MyNetwork MyMySQL -
检查 MySQL 容器是否成功加入局域网
PS C:Usersxiao> docker network inspect MyNetwork [ { "Name": "MyNetwork", "Id": "56b64b706d69bf2d3b30eb6d63c94bb110c74e16febf96c1b1b0aa687cc3d493", "Created": "2022-01-27T11:58:16.195894307Z", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": {}, "Config": [ { "Subnet": "172.18.0.0/16", "Gateway": "172.18.0.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": { "9ba1cfa5e902ba3f4cfebb6404d03f8c4cbe1aa418fc4ae682722c5882c88811": { "Name": "MyNginx", "EndpointID": "22e350022928c6e597a0bc217b84270525ab8400bb84d04387d63632f0b028eb", "MacAddress": "02:42:ac:12:00:02", "IPv4Address": "172.18.0.2/16", "IPv6Address": "" }, "45a4bca256c29842067cb324c67f3288c24b545a61cb796f4df1bfc5b1fcaae6": { "Name": "MyMySQL", "EndpointID": "f80a9fbd1f849a58f18b45d4d7684295e6d8e593c0b308af7215846692e2e57d", "MacAddress": "02:42:ac:12:00:03", "IPv4Address": "172.18.0.3/16", "IPv6Address": "" } }, "Options": {}, "Labels": {} } ]
4、创建并启动3个 Nacos 容器，将容器加入局域网
-
创建并启动 Nacos 容器（集群模式）
<(￣︶￣)↗Nacos 实战 - 安装与使用.md
docker run -itd -p 8848:8848 --env MODE=cluster --name MyNacos1 nacos/nacos-server docker run -itd -p 8849:8848 --env MODE=cluster --name MyNacos2 nacos/nacos-server docker run -itd -p 8850:8848 --env MODE=cluster --name MyNacos3 nacos/nacos-server -
将 Nacos 容器加入局域网
docker network connect MyNetwork MyNacos1 docker network connect MyNetwork MyNacos2 docker network connect MyNetwork MyNacos3 -
检查 Nacos 容器是否成功加入局域网
PS C:Usersxiao> docker network inspect MyNetwork [ { "Name": "MyNetwork", "Id": "56b64b706d69bf2d3b30eb6d63c94bb110c74e16febf96c1b1b0aa687cc3d493", "Created": "2022-01-27T11:58:16.195894307Z", "Scope": "local", "Driver": "bridge", "EnableIPv6": false, "IPAM": { "Driver": "default", "Options": {}, "Config": [ { "Subnet": "172.18.0.0/16", "Gateway": "172.18.0.1" } ] }, "Internal": false, "Attachable": false, "Ingress": false, "ConfigFrom": { "Network": "" }, "ConfigOnly": false, "Containers": { "9ba1cfa5e902ba3f4cfebb6404d03f8c4cbe1aa418fc4ae682722c5882c88811": { "Name": "MyNginx", "EndpointID": "22e350022928c6e597a0bc217b84270525ab8400bb84d04387d63632f0b028eb", "MacAddress": "02:42:ac:12:00:02", "IPv4Address": "172.18.0.2/16", "IPv6Address": "" }, "45a4bca256c29842067cb324c67f3288c24b545a61cb796f4df1bfc5b1fcaae6": { "Name": "MyMySQL", "EndpointID": "f80a9fbd1f849a58f18b45d4d7684295e6d8e593c0b308af7215846692e2e57d", "MacAddress": "02:42:ac:12:00:03", "IPv4Address": "172.18.0.3/16", "IPv6Address": "" }, "b2268309c7e072f7212fc10efc773636676243d40067e8f4511324786701aed7": { "Name": "MyNacos1", "EndpointID": "2d0c0db59c5918bac6955bdc24682576d0b8301ea67097110d5a4f6a8557966e", "MacAddress": "02:42:ac:12:00:04", "IPv4Address": "172.18.0.4/16", "IPv6Address": "" }, "a07e465b71cd19c54caa26aeb58aad9714d03945d029648ec65e61affc3b1796": { "Name": "MyNacos2", "EndpointID": "0a5a371b04e2eb4087836a817785edaf86a356b1ad100f164328d6481a17b190", "MacAddress": "02:42:ac:12:00:05", "IPv4Address": "172.18.0.5/16", "IPv6Address": "" }, "d29eceb1c4b5d6071a8e11d75dce038f27eae5e8800cafc7cbeb97429c3d5d95": { "Name": "MyNacos3", "EndpointID": "79cb067cd0d3c267fc51614fc794c31d8922e334132a3ae3efaabf4dd3bb7e60", "MacAddress": "02:42:ac:12:00:06", "IPv4Address": "172.18.0.6/16", "IPv6Address": "" } }, "Options": {}, "Labels": {} } ]
5、验证上述容器能否相互 ping 通
注意：ping: command not found 解决：apt-get update + apt-get iputils-ping
6、配置 Nacos 持久化、集群
<(￣︶￣)↗Nacos实战 - 持久化.md
-
从 Nacos 官网获取 Nacos 数据库构建脚本，MySQL 执行脚本搭建 Nacos 数据库
-
进入 Nacos 实例，修改 /conf/application.properties 文件，配置 Nacos 持久化
-
修改 /conf/cluster.conf 配置文件，配置 Nacos 集群
7、验证 Nacos 持久化是否生效
-
重启所有 Nacos 实例
-
打开任意一个 Nacos 实例的控制面板，创建若干配置信息
-
检查配置信息是否存入数据库
-
打开其他 Nacos 实例的控制面板，检查是否获取到相同的配置信息
8、配置 Nginx 对 Nacos 的负载均衡
<(￣︶￣)↗Nginx 实战 - 负载均衡.md
进入 Nginx 容器，配置自定义配置文件 /etc/nginx/conf.d/nacosLoadBalance.conf
upstream serverInstance {
# ip_hash;
server 172.18.0.4:8848 weight=1;
server 172.18.0.5:8848 weight=1;
server 172.18.0.6:8848 weight=1;
}
server {
listen 80;
server_name 127.0.0.1;
location ~ /nacos/ {
proxy_pass http://serverInstance;
proxy_connect_timeout 10;
}
}
9、验证 Nginx 负载均衡是否生效
-
修改 Nginx 配置文件，改变日志格式
log_format main '$remote_addr --"$request"--> $http_host--> $upstream_addr [$status $request_time]'; -
重启 Nginx
-
通过 Nginx 访问 Nacos 控制面板
-
刷新若干次后查看日志文件
172.18.0.1 --"GET /nacos/ HTTP/1.1"--> 127.0.0.1--> 172.18.0.4:8848 [200 0.012] 172.18.0.1 --"GET /nacos/ HTTP/1.1"--> 127.0.0.1--> 172.18.0.5:8848 [304 0.010] 172.18.0.1 --"GET /nacos/ HTTP/1.1"--> 127.0.0.1--> 172.18.0.6:8848 [304 0.009] 172.18.0.1 --"GET /nacos/ HTTP/1.1"--> 127.0.0.1--> 172.18.0.4:8848 [200 0.010] 172.18.0.1 --"GET /nacos/ HTTP/1.1"--> 127.0.0.1--> 172.18.0.5:8848 [200 0.010] 172.18.0.1 --"GET /nacos/ HTTP/1.1"--> 127.0.0.1--> 172.18.0.6:8848 [304 0.010]
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