这篇文章的目的:搭建带有ACL控制的consul1.5集群。
具体概念及配置说明,后面我会再写文章补充说明。html
我这里起了四台虚拟机,三台用做Server agent,一台用做Client agent。(说明:固然Client能够配置多个,这里因为开太多虚拟机比较耗费资源,就只设置了一个。)node
机器ip(机器名) | http端口(其余端口使用默认值) | Agent类型 | 节点名称 |
---|---|---|---|
10.2111.55.28 (node1) | 8500 | server | consul-server1 |
10.2111.55.25 (node2) | 8500 | server | consul-server2 |
10.2111.55.26 (node3) | 8500 | server | consul-server3 |
10.2111.55.27 (node4) | 8500 | client 带ui | consul-client1 |
consul-server1.jsonweb
{ "datacenter":"dc1", "primary_datacenter":"dc1", "bootstrap_expect":1, "start_join":[ "10.211.55.25", "10.211.55.26" ], "retry_join":[ "10.211.55.25", "10.211.55.26" ], "advertise_addr": "10.211.55.28", "bind_addr": "10.211.55.28", "server":true, "connect":{ "enabled":true }, "node_name":"consul-server1", "data_dir":"/opt/consul/data/", "enable_script_checks":false, "enable_local_script_checks":true, "log_file":"/opt/consul/log/", "log_level":"info", "log_rotate_bytes":100000000, "log_rotate_duration":"24h", "encrypt":"krCysDJnrQ8dtA7AbJav8g==", "acl":{ "enabled":true, "default_policy":"deny", "enable_token_persistence":true, "tokens":{ "master":"cd76a0f7-5535-40cc-8696-073462acc6c7" } } }
consul-server2.jsonjson
{ "datacenter":"dc1", "primary_datacenter":"dc1", "advertise_addr": "10.211.55.25", "bind_addr": "10.211.55.25", "server":true, "connect":{ "enabled":true }, "node_name":"consul-server2", "data_dir":"/opt/consul/data/", "enable_script_checks":false, "enable_local_script_checks":true, "log_file":"/opt/consul/log/", "log_level":"info", "log_rotate_bytes":100000000, "log_rotate_duration":"24h", "encrypt":"krCysDJnrQ8dtA7AbJav8g==", "acl":{ "enabled":true, "default_policy":"deny", "enable_token_persistence":true, "tokens":{ "master":"cd76a0f7-5535-40cc-8696-073462acc6c7" } } }
consul-server3.jsonbootstrap
{ "datacenter":"dc1", "primary_datacenter":"dc1", "advertise_addr":"10.211.55.26", "bind_addr":"10.211.55.26", "server":true, "connect":{ "enabled":true }, "node_name":"consul-server3", "data_dir":"/opt/consul/data/", "enable_script_checks":false, "enable_local_script_checks":true, "log_file":"/opt/consul/log/", "log_level":"info", "log_rotate_bytes":100000000, "log_rotate_duration":"24h", "encrypt":"krCysDJnrQ8dtA7AbJav8g==", "acl":{ "enabled":true, "default_policy":"deny", "enable_token_persistence":true, "tokens":{ "master":"cd76a0f7-5535-40cc-8696-073462acc6c7" } } }
能够看到,consul-server2和consul-server3的配置相似,只是换了下ip和端口;另外consul-server1主要是多了开始链接和重试链接等配置。
接着,启动集群:
在机器10.2111.55.25 (node2)上执行,./consul agent -config-file start-conf/consul-server2.json
在机器10.2111.55.26 (node3)上执行,./consul agent -config-file start-conf/consul-server3.json
在机器10.2111.55.28 (node1)上执行,./consul agent -config-file start-conf/consul-server1.jsonvim
当上面的语句执行完以后,会发现协调更新因为ACL被阻塞。以下图:
通过查看官方文档,发现是因为未生成和配置agent-token致使。浏览器
在任意一台server上执行下面的语句来生成agent-token:app
curl \ --request PUT \ --header "X-Consul-Token: cd76a0f7-5535-40cc-8696-073462acc6c7" \ --data \ '{ "Name": "Agent Token", "Type": "client", "Rules": "node \"\" { policy = \"write\" } service \"\" { policy = \"read\" }" }' http://127.0.0.1:8500/v1/acl/create
此时会返回生成的agent-token
将生成的agent_token设置到每一个server agent的配置文件中。
此时consul-server1.json, consul-server2.json, consul-server3.json中acl部分就变为:curl
"acl":{ "enabled":true, "default_policy":"deny", "enable_token_persistence":true, "tokens":{ "master":"cd76a0f7-5535-40cc-8696-073462acc6c7", "agent":"deaa315d-98c5-b9f6-6519-4c8f6574a551" } }
也就是多了agent这个配置。ui
接着一次重启各个server agent(把以前的进程先停掉)
在机器10.2111.55.25 (node2)上执行,./consul agent -config-file start-conf/consul-server2.json
在机器10.2111.55.26 (node3)上执行,./consul agent -config-file start-conf/consul-server3.json
在机器10.2111.55.28 (node1)上执行,./consul agent -config-file start-conf/consul-server1.json
等server agent集群稳定下来以后,咱们会看到以前的ACL block已经解决。
{ "datacenter":"dc1", "primary_datacenter":"dc1", "advertise_addr": "10.211.55.27", "start_join":[ "10.211.55.25", "10.211.55.26", "10.211.55.28" ], "retry_join":[ "10.211.55.25", "10.211.55.26", "10.211.55.28" ], "bind_addr":"10.211.55.27", "node_name":"consul-client1", "client_addr":"0.0.0.0", "connect":{ "enabled":true }, "data_dir":"/opt/consul/data/", "log_file":"/opt/consul/log/", "log_level":"info", "log_rotate_bytes":100000000, "log_rotate_duration":"24h", "encrypt":"krCysDJnrQ8dtA7AbJav8g==", "ui":true, "enable_script_checks":false, "enable_local_script_checks":true, "disable_remote_exec":true, "ports":{ "http":7110 }, "acl":{ "enabled":true, "default_policy":"deny", "enable_token_persistence":true, "tokens":{ "agent":"deaa315d-98c5-b9f6-6519-4c8f6574a551" } } }
上面的配置主要是多了ui,代表带web-ui(能够在浏览器中查看)。
另外也是设置了第三步中生成的agent token。
在机器10.2111.55.27 (node4)上执行,./consul agent -config-file start-conf/consul-client1.json
通过前面一番配置,本觉得已经搞定了全部东西,此时只想摸摸本身帅气的头发。
可一执行./consul members, 想看看我这里都有哪些成员,竟然发现一个都没有
通过查看官方文档及搜索,发现是没有配置环境变量致使。
1.给三个server的环境变量添加CONSUL_HTTP_TOKEN, vim /etc/profile添加下面一句
export CONSUL_HTTP_TOKEN=cd76a0f7-5535-40cc-8696-073462acc6c7
而后,source /etc/profile一下。
为了简单方便,我这里配了最大的权限即master_token
此时发现./consul members已经有数据了
2.给client agent 设置环境变量
因为client agent 带web-ui,这里你的公司不必定对外开放8500端口,因此我这里把它改为了7110,方便在外网查看。
不过此时须要添加一个环境变量CONSUL_HTTP_ADDR,来告诉命令行不是使用默认的127.0.0.1:8500
更改client-agent的环境变量,在最后添加下面两行
#consul http-token export CONSUL_HTTP_TOKEN=cd76a0f7-5535-40cc-8696-073462acc6c7 #only consul-client1 need, because http port has changed to 7110 export CONSUL_HTTP_ADDR=127.0.0.1:7110
此时发如今client agent上执行./consul members也是ok的。
在client-agent上,输入127.0.0.1:7110, 点击ACL, 输入master-token便可。以下图:
https://www.consul.io/docs/ac...
https://www.consul.io/docs/ag...
https://www.consul.io/docs/co...