发布：2023/12/7 15:33:11作者：大数据 来源：大数据 浏览次数：459

https://www.cnblogs.com/edisonchou/p/9124985.html

https://www.cnblogs.com/edisonchou/p/9148034.html

https://www.cnblogs.com/axzxs2001/p/8487521.html

https://blog.csdn.net/hailang2ll/article/details/82020027

https://blog.csdn.net/hailang2ll/article/details/82079192

consul访问键值，key/value，ip地址根据情况可能不同

访问所有键值

http://192.168.80.100:8500/v1/kv/?recurse

访问单个key=foo：

http://192.168.80.100:8500/v1/kv/foo

另外value值进行了base64加密，由于Consul的Value是经过Base64编码的（主要是为了允许非UTF-8的字符），所以这里看到的是编码后的结果。我们可以通过解码得到最终的Value值。

Docker安装consul集群

docker从容器里面拷文件到宿主机或从宿主机拷文件到docker容器里面

宿主机，virturalbox虚拟机，docker，consul集群

宿主机和虚拟机区别：
宿主机是虚拟机的物理基础，虚拟机存在于宿主机中，与宿主机共享使用硬件。宿主机的运行是虚拟机运行的前提与基础。
虚拟机（Virtual Machine）指通过软件模拟的具有完整硬件系统功能的、运行在一个完全隔离环境中的完整计算机系统。
宿主机就是主机，这个概念是相对于子机而言的，比如安装有虚拟机的话，那么相对于虚拟机而言，正在使用的计算机就是宿主机，虚拟机是安装在主机上的，必须在主机上才能运行，主机就是一个“宿主”。
docker可以运行在宿主机上，也可以运行于虚拟机上。
宿主机进入虚拟机virtualbox命令：
$docker-machine ssh server1

docker run -d --name=node1 --restart=always \
-e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
-p 8300:8300 \
-p 8301:8301 \
-p 8301:8301/udp \
-p 8302:8302/udp \
-p 8302:8302 \
-p 8400:8400 \
-p 8500:8500 \
-p 8600:8600 \
-h node1 \
consul agent -server -bind=172.17.0.2 -bootstrap-expect=3 -node=node1 \
-data-dir=/tmp/data-dir -client 0.0.0.0 -ui
docker run -d --name=node2 --restart=always \
-e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
-p 9300:8300 \
-p 9301:8301 \
-p 9301:8301/udp \
-p 9302:8302/udp \
-p 9302:8302 \
-p 9400:8400 \
-p 9500:8500 \
-p 9600:8600 \
-h node2 \
consul agent -server -bind=172.17.0.3 \
-join=192.168.99.103 -node-id=$(uuidgen | awk '{print tolower($0)}') \
-node=node2 \
-data-dir=/tmp/data-dir -client 0.0.0.0 -ui

docker run -d --name=node3 --restart=always \
-e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
-p 10300:8300 \
-p 10301:8301 \
-p 10301:8301/udp \
-p 10302:8302/udp \
-p 10302:8302 \
-p 10400:8400 \
-p 10500:8500 \
-p 10600:8600 \
-h node3 \
consul agent -server -bind=172.17.0.4 \
-join=192.168.99.103 -node-id=$(uuidgen | awk '{print tolower($0)}') \
-node=node3 \
-data-dir=/tmp/data-dir -client 0.0.0.0 -ui

docker run -d --name=node4 --restart=always \
-e 'CONSUL_LOCAL_CONFIG={"leave_on_terminate": true}' \
-p 11300:8300 \
-p 11301:8301 \
-p 11301:8301/udp \
-p 11302:8302/udp \
-p 11302:8302 \
-p 11400:8400 \
-p 11500:8500 \
-p 11600:8600 \
-h node4 \
consul agent -bind=172.17.0.5 -retry-join=192.168.99.103 \
-node-id=$(uuidgen | awk '{print tolower($0)}') \
-node=node4 -client 0.0.0.0 -ui

docker run -d --name=node5 --restart=always \
-e 'CONSUL_LOCAL_CONFIG={"leave_on_terminate": true}' \
-p 12300:8300 \
-p 12301:8301 \
-p 12301:8301/udp \
-p 12302:8302/udp \
-p 12302:8302 \
-p 12400:8400 \
-p 12500:8500 \
-p 12600:8600 \
-h node5 \
consul agent -bind=172.17.0.6 -retry-join=192.168.99.103 \
-node-id=$(uuidgen | awk '{print tolower($0)}') \
-node=node5 -client 0.0.0.0 -ui

docker run -d --name=node6 --restart=always \
-e 'CONSUL_LOCAL_CONFIG={"leave_on_terminate": true}' \
-p 13300:8300 \
-p 13301:8301 \
-p 13301:8301/udp \
-p 13302:8302/udp \
-p 13302:8302 \
-p 13400:8400 \
-p 13500:8500 \
-p 13600:8600 \
-h node6 \
consul agent -bind=172.17.0.7 -retry-join=192.168.99.103 \
-node-id=$(uuidgen | awk '{print tolower($0)}') \
-node=node6 -client 0.0.0.0 -ui

docker run --name server1 -d --net=host -e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
consul agent -server -ui -bootstrap-expect=3 \
-data-dir=/tmp/consul -node=server1 \
-client=0.0.0.0 -bind=192.168.99.103

docker run --name server2 -d --net=host -e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
consul agent -server -ui -bootstrap-expect=3 \
-data-dir=/tmp/consul -node=server2 \
-client=0.0.0.0 -bind=192.168.99.104 -join 192.168.99.103

docker run --name server3 -d --net=host -e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
consul agent -server -ui -bootstrap-expect=3 \
-data-dir=/tmp/consul -node=server3 \
-client=0.0.0.0 -bind=192.168.99.105 -join 192.168.99.103

docker run --name client1 -d --net=host -e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
consul agent -node=client1 \
-client=0.0.0.0 -bind=192.168.99.106 -retry-join=192.168.99.103

docker run --name client2 -d --net=host -e 'CONSUL_LOCAL_CONFIG={"skip_leave_on_interrupt": true}' \
consul agent -node=client2 \
-bind=192.168.99.107 -retry-join=192.168.99.103

--name
docker参数，设置容器名称

-node
consul agent的参数，设置集群结点名称

-bind
绑定集群内部ip，此ip可以被集群中其它结点访问到

consul agent参数参考：https://www.consul.io/docs/agent/options.html
server类型结点可以访问集群ui界面，client模式则不可以。
http://192.168.99.103:8500
http://192.168.99.104:8500
http://192.168.99.105:8500
查看集群结点各个server信息：进入node1虚拟机执行命令：
docker exec -t node1 consul members
结果显示：
Node Address Status Type Build Protocol DC Segment
server1 192.168.99.103:8301 alive server 1.6.2 2 dc1 <all>
server2 192.168.99.104:8301 alive server 1.6.2 2 dc1 <all>
server3 192.168.99.105:8301 alive server 1.6.2 2 dc1 <all>
client1 192.168.99.106:8301 alive client 1.6.2 2 dc1 <default>
client2 192.168.99.107:8301 alive client 1.6.2 2 dc1 <default>

查看目前全部的consul的角色状态：
docker exec -t node1 consul operator raft list-peers
结果：
docker@node1:~$ docker exec -t beautiful_hugle consul operator raft list-peers
Node ID Address State Voter RaftProtocol
server1 0111e3b9-6ef6-3b96-3c8a-f35adc10b997 192.168.99.103:8300 leader true 3
server2 442b7edf-a273-6ea4-7555-28ade8e1405f 192.168.99.104:8300 follower true 3
server3 ccf7e7cd-afba-ebf1-4b4c-5b42a2036ad2 192.168.99.105:8300 follower true 3

虚拟机中查看docker启动日志：
docker logs 容器id/容器名称

OCI runtime exec failed: exec failed: container_linux.go:346: starting container process caused "exec: \"/bin/bash\": stat /bin/bash: no such file or directory": unknown
进入docker容器内部命令：
docker exec -it 容器id /bin/sh
或者
docker exec -it 容器id /bin/bash

宿主机进入node1虚拟机，新建如下文件夹和文件，将.netcore服务注册到Consul（通过配置文件来注册服务，其中，192.168.1.106为本物理机地址，物理机上运行宿主机）：执行如下命令，进行配置文件注册服务
vi /shared/app/consul/conf/services_config.json
代码如下：
{
"services":[
{
"id": "CLIENT_SERVICE_01",
"name" : "MVCClientService",
"tags": [
"MVCClientService01"
],
"address": "192.168.1.106",
"port": 8820,
"checks": [
{
"name": "clientservice_check",
"http": "http://192.168.1.106:8820",
"interval": "10s",
"timeout": "5s"
}
]
},
{
"id": "CLIENT_SERVICE_02",
"name" : "APIClientService",
"tags": [
"APIClientService02"
],
"address": "192.168.1.106",
"port": 8810,
"checks": [
{
"name": "clientservice_check",
"http": "http://192.168.1.106:8810/api/values",
"interval": "10s",
"timeout": "5s"
}
]
}
]
}
文件保存不了，用sudo提升权限
linux vi常用命令：
退出：q!
保存退出：wq

将宿主机Client1的配置文件实现服务注册
docker run --name client1 -d --net=host \
-v /shared/app/consul/data:/consul/data \
-v /shared/app/consul/conf:/consul/config \
consul agent -client=0.0.0.0 -data-dir=/consul/data -config-dir=/consul/config \
-bind=192.168.99.106 -join=192.168.99.103
说明：shared目录为宿主机在virtualbox中的共享目录，这样就可以在启动Docker的同时，启动consul加载配置文件,实现服务注册

通过url提供的api实现服务注册
curl -X PUT -d '{"id": "jetty","name": "jetty","address": "192.168.1.106","port": 8820,"tags": ["dev"],"checks": [{"http": "http://192.168.1.106:8820","interval": "5s"}]}' \
http://192.168.99.106:8500/v1/agent/service/register

删除服务，删除后不会恢复
curl -v -X PUT http://192.168.99.106:8500/v1/agent/service/deregister/jetty
说明：jetty为ServiceID

以下两个操作，删除服务后，隔一会还恢复加入
curl -X PUT -d '{"Datacenter":"dc1","Node":"client1","ServiceID":"jetty"}' http://192.168.99.106:8500/v1/catalog/deregister
或者
curl --request PUT --data '{"Datacenter":"dc1","Node":"client1","ServiceID":"jetty"}' http://192.168.99.106:8500/v1/catalog/deregister