发布于2021-06-12 14:59 阅读(932) 评论(0) 点赞(13) 收藏(0)
server模式和client模式
server模式和client模式是consul节点的类型;client不是指的用户客户端。
这里说明一下,另外一个参数-bootstrap,用来控制一个server是否运行在bootstrap模式:当一个server处于bootstrap模式时,它可以选举自己为leader;注意在一个datacenter中只能有一个server处于bootstrap模式。所以这个参数一般只能用在只有一个server的开发环境中,在有多个server的cluster产品环境中,不能使用这个参数,否则如果多个server都标记自己为leader那么会导致数据不一致。另外该标记不能和-bootstrap-expect同时指定。
编辑docker-compose.yml文件
- version: '2'
- networks:
- byfn:
-
- services:
- consul1:
- image: consul
- container_name: node1
- command: agent -server -bootstrap-expect=3 -node=node1 -bind=0.0.0.0 -client=0.0.0.0 -datacenter=dc1
- networks:
- - byfn
-
- consul2:
- image: consul
- container_name: node2
- command: agent -server -retry-join=node1 -node=node2 -bind=0.0.0.0 -client=0.0.0.0 -datacenter=dc1
- depends_on:
- - consul1
- networks:
- - byfn
-
- consul3:
- image: consul
- container_name: node3
- command: agent -server -retry-join=node1 -node=node3 -bind=0.0.0.0 -client=0.0.0.0 -datacenter=dc1
- depends_on:
- - consul1
- networks:
- - byfn
-
- consul4:
- image: consul
- container_name: node4
- command: agent -retry-join=node1 -node=ndoe4 -bind=0.0.0.0 -client=0.0.0.0 -datacenter=dc1 -ui
- ports:
- - 8500:8500
- depends_on:
- - consul2
- - consul3
- networks:
- - byfn
启动服务
- $ docker-compose up
- $ docker exec -t node1 consul members
- Node Address Status Type Build Protocol DC Segment
- node1 172.21.0.2:8301 alive server 1.4.0 2 dc1 <all>
- node2 172.21.0.4:8301 alive server 1.4.0 2 dc1 <all>
- node3 172.21.0.3:8301 alive server 1.4.0 2 dc1 <all>
- ndoe4 172.21.0.5:8301 alive client 1.4.0 2 dc1 <default>
- spring:
- application:
- name: cloud-payment-service
- ####consul注册中心地址
- cloud:
- consul:
- enabled: true
- host: 127.0.0.1
- port: 8500
- discovery:
- hostname: 127.0.0.1
- prefer-ip-address: true
- service-name: ${spring.application.name}
- #healthCheckInterval: 15s
- instance-id: ${spring.application.name}-8002
- enabled: true
- $ docker exec -t node4 consul kv put foo "Hello foo"
- $ docker exec -t node4 consul kv put foo/foo1 "Hello foo1"
- $ docker exec -t node4 consul kv put foo/foo2 "Hello foo2"
- $ docker exec -t node4 consul kv put foo/foo21 "Hello foo21"
- $ docker exec -t node4 consul kv get foo
- Hello foo
- $ docker exec -t node4 consul kv get -detailed foo/foo1
- CreateIndex 124
- Flags 0
- Key foo/foo1
- LockIndex 0
- ModifyIndex 124
- Session -
- Value Hello foo1
- $ docker exec -t node4 consul kv get -keys -separator="" foo
- foo
- foo/foo1
- foo/foo2
- foo/foo2/foo21
- $ docker exec -t node4 consul kv get not-a-real-key
- Error! No key exists at: not-a-real-key
原文链接:https://blog.csdn.net/qq_23994787/article/details/117732914
作者:skdk
链接:http://www.javaheidong.com/blog/article/222290/df1153e0c5ece8078c5d/
来源:java黑洞网
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