摘要:注意,此标志不反映数据库本身的健康状况。每一个匹配给定路线的请求都将被提交给它的相关服务。字段解释是否必填协议列表,。
部署好kong之后,则需要将我们自己的接口加入到kong中管理,kong提供了比较全面的restful api,每个版本会有所不同,下面的记录基于kong v0.14.x
kong的8001端口是resful admin api,服务、路由、配置都是通过这个端口进行管理,所以部署好之后页面可以直接访问localhost:8001
参考: https://docs.konghq.com/0.14....
一、Retrieve node information(介绍节点信息)获取kong节点的通用详细信息
1,查询节点信息curl http://localhost:8001
Endpoint
{ "plugins": { "enabled_in_cluster": [], "available_on_server": { "response-transformer": true, "oauth2": true, "acl": true, "correlation-id": true, "pre-function": true, "jwt": true, "cors": true, "ip-restriction": true, "basic-auth": true, "key-auth": true, "rate-limiting": true, "request-transformer": true, "http-log": true, "file-log": true, "hmac-auth": true, "ldap-auth": true, "datadog": true, "tcp-log": true, "zipkin": true, "post-function": true, "request-size-limiting": true, "bot-detection": true, "syslog": true, "loggly": true, "azure-functions": true, "udp-log": true, "response-ratelimiting": true, "aws-lambda": true, "statsd": true, "prometheus": true, "request-termination": true } }, "tagline": "Welcome to kong", "configuration": { "plugins": [ "bundled" ], "admin_ssl_enabled": true, "lua_ssl_verify_depth": 1, "trusted_ips": {}, "prefix": "/usr/local/kong", "loaded_plugins": { "response-transformer": true, "request-termination": true, "prometheus": true, "ip-restriction": true, "pre-function": true, "jwt": true, "cors": true, "statsd": true, "basic-auth": true, "key-auth": true, "ldap-auth": true, "aws-lambda": true, "http-log": true, "response-ratelimiting": true, "hmac-auth": true, "request-size-limiting": true, "datadog": true, "tcp-log": true, "zipkin": true, "post-function": true, "bot-detection": true, "acl": true, "loggly": true, "syslog": true, "azure-functions": true, "udp-log": true, "file-log": true, "request-transformer": true, "correlation-id": true, "rate-limiting": true, "oauth2": true }, "cassandra_username": "kong", "admin_ssl_cert_csr_default": "/usr/local/kong/ssl/admin-kong-default.csr", "ssl_cert_key": "/usr/local/kong/ssl/kong-default.key", "admin_ssl_cert_key": "/usr/local/kong/ssl/admin-kong-default.key", "dns_resolver": {}, "pg_user": "kong", "mem_cache_size": "128m", "cassandra_data_centers": [ "dc1:2", "dc2:3" ], "nginx_admin_directives": {}, "custom_plugins": {}, "pg_host": "127.0.0.1", "nginx_acc_logs": "/usr/local/kong/logs/access.log", "proxy_listen": [ "0.0.0.0:8000", "0.0.0.0:8443 ssl" ], "client_ssl_cert_default": "/usr/local/kong/ssl/kong-default.crt", "ssl_cert_key_default": "/usr/local/kong/ssl/kong-default.key", "dns_no_sync": false, "db_update_propagation": 0, "nginx_err_logs": "/usr/local/kong/logs/error.log", "cassandra_port": 9042, "dns_order": [ "LAST", "SRV", "A", "CNAME" ], "dns_error_ttl": 1, "headers": [ "server_tokens", "latency_tokens" ], "dns_stale_ttl": 4, "nginx_optimizations": true, "database": "postgres", "pg_database": "kong", "nginx_worker_processes": "auto", "lua_package_cpath": "", "admin_acc_logs": "/usr/local/kong/logs/admin_access.log", "lua_package_path": "./?.lua;./?/init.lua;", "nginx_pid": "/usr/local/kong/pids/nginx.pid", "upstream_keepalive": 60, "cassandra_contact_points": [ "127.0.0.1" ], "client_ssl_cert_csr_default": "/usr/local/kong/ssl/kong-default.csr", "proxy_listeners": [ { "ssl": false, "ip": "0.0.0.0", "proxy_protocol": false, "port": 8000, "http2": false, "listener": "0.0.0.0:8000" }, { "ssl": true, "ip": "0.0.0.0", "proxy_protocol": false, "port": 8443, "http2": false, "listener": "0.0.0.0:8443 ssl" } ], "proxy_ssl_enabled": true, "admin_access_log": "logs/admin_access.log", "ssl_ciphers": "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256", "enabled_headers": { "latency_tokens": true, "X-Kong-Proxy-Latency": true, "Via": true, "server_tokens": true, "Server": true, "X-Kong-Upstream-Latency": true, "X-Kong-Upstream-Status": false }, "cassandra_ssl": false, "ssl_cert_csr_default": "/usr/local/kong/ssl/kong-default.csr", "db_resurrect_ttl": 30, "client_max_body_size": "0", "cassandra_consistency": "ONE", "db_cache_ttl": 0, "admin_error_log": "logs/error.log", "pg_ssl_verify": false, "dns_not_found_ttl": 30, "pg_ssl": false, "client_ssl": false, "db_update_frequency": 5, "cassandra_repl_strategy": "SimpleStrategy", "nginx_kong_conf": "/usr/local/kong/nginx-kong.conf", "cassandra_repl_factor": 1, "nginx_http_directives": [ { "value": "prometheus_metrics 5m", "name": "lua_shared_dict" } ], "error_default_type": "text/plain", "kong_env": "/usr/local/kong/.kong_env", "real_ip_header": "X-Real-IP", "dns_hostsfile": "/etc/hosts", "admin_listeners": [ { "ssl": false, "ip": "0.0.0.0", "proxy_protocol": false, "port": 8001, "http2": false, "listener": "0.0.0.0:8001" }, { "ssl": true, "ip": "0.0.0.0", "proxy_protocol": false, "port": 8444, "http2": false, "listener": "0.0.0.0:8444 ssl" } ], "admin_ssl_cert": "/usr/local/kong/ssl/admin-kong-default.crt", "ssl_cert": "/usr/local/kong/ssl/kong-default.crt", "proxy_access_log": "logs/access.log", "admin_ssl_cert_key_default": "/usr/local/kong/ssl/admin-kong-default.key", "cassandra_ssl_verify": false, "cassandra_lb_policy": "RoundRobin", "ssl_cipher_suite": "modern", "real_ip_recursive": "off", "proxy_error_log": "logs/error.log", "client_ssl_cert_key_default": "/usr/local/kong/ssl/kong-default.key", "nginx_daemon": "on", "anonymous_reports": true, "cassandra_timeout": 5000, "nginx_proxy_directives": {}, "pg_port": 5432, "log_level": "notice", "client_body_buffer_size": "8k", "cassandra_schema_consensus_timeout": 10000, "lua_socket_pool_size": 30, "admin_ssl_cert_default": "/usr/local/kong/ssl/admin-kong-default.crt", "cassandra_keyspace": "kong", "ssl_cert_default": "/usr/local/kong/ssl/kong-default.crt", "nginx_conf": "/usr/local/kong/nginx.conf", "admin_listen": [ "0.0.0.0:8001", "0.0.0.0:8444 ssl" ] }, "version": "0.14.1", "node_id": "fee222ae-7871-49e5-a47c-bdc55410dc2a", "lua_version": "LuaJIT 2.1.0-beta3", "prng_seeds": { "pid: 2328": 177223337424, "pid: 2326": 145810617621, "pid: 2327": 712547711113, "pid: 2329": 114129841275 }, "timers": { "pending": 5, "running": 0 }, "hostname": "localhost.localdomain" }
部分返回字段含义:
node_id : 正在运行的kong节点的uuid,当kong启动时随机生成,每次kong重启时这个uuid都会变2,查询节点状态availabel_on_server : kong节点上安装的plugins的名称
enabled_in_cluster : kong节点中启用的插件,即在数据库中生成了对应存储表
curl http://localhost:8001/status
{ "database": { "reachable": true }, "server": { "connections_writing": 1, "total_requests": 67, "connections_handled": 46, "connections_accepted": 46, "connections_reading": 0, "connections_active": 2, "connections_waiting": 1 } }
**字段解释
字段 | 解释 |
---|---|
total_requests | 客户端请求总数 |
connections_active | 包括等待连接的活动客户端连接的当前数量 |
connections_accepted | 接受的客户端连接的总数 |
connections_handled | 处理连接的总数。一般来说,除非达到一定的资源限制,否则参数值与接受值相同 |
connections_reading | 当前Kong正在读取请求头的连接数 |
connections_writing | NGINX将响应写入客户端的连接的当前数量 |
connections_waiting | 等待请求的空闲客户端连接的当前数量 |
reachable | 反映数据库连接状态的布尔值。注意,此标志不反映数据库本身的健康状况。 |
kong v0.13.x官方建议用Service和Route模块来管理API,这样可以更好的管理,比如认证和策略统一配置。1,Add Service(添加服务)
参数
字段 | 解释 | 备注 |
---|---|---|
name | 服务名称 | 无 |
protocol | 协议:http or https 默认是 http | 你后端服务用什么协议访问就写什么协议 |
host | 后端服务域名 | 无 |
port | 后端服务端口 | 无 |
path | 后端服务子路径;没有就填 "/" | 无 |
retries | 重试次数:默认 5次 | 默认就行 |
connect_timeout | 请求后端服务的超时时间:默认60000 ms | 1秒(s)=1000毫秒(ms) |
write_timeout | 写超时时间:默认60000 ms | 1秒(s)=1000毫秒(ms) |
read_timeout | 读超时时间:默认60000 ms | 1秒(s)=1000毫秒(ms) |
url | 后端服务url地址 | 一般就用这种方式,可以直接指定:protocol、host、port and path, 不用多带带指定啦 |
使用:
curl -i -X POST http://localhost:8001/services -d "name=test.service" -d "url=http://你的后端服务域名/api"
返回:
{ "host": "你的后端服务域名", "created_at": 1538093069, "connect_timeout": 60000, "id": "85c4d968-7b6f-48fc-b5b0-260cf8493821", "protocol": "http", "name": "test.service", "read_timeout": 60000, "port": 80, "path": "/api", "updated_at": 1538093069, "retries": 5, "write_timeout": 60000 }
*注:url 这个属性很好用,可以直接指定 protocol、host、port and path。
也 可以这么写
curl -i -X POST http://localhost:8001/services -d "name=test.service" -d "protocol=http" -d "host=hxonline.hxsd.cn" -d "path=/api"2,Retrieve Service(查询服务)
查询所有服务
curl -i -X GET http://1localhost:8001/services
查询某个服务
curl -i -X GET http://localhost:8001/services/{服务名称 or 服务id} EXP: curl -i -X GET http://localhost:8001/services/test.service #我的服务名称
获取某个路由下的服务
curl -i -X GET http://localhost:8001/routes/{路由ID}/service EXP: curl -i -X GET http://localhost:8001/routes/xxxx-xxx-xxx-xx/service
更新服务
可以用 PATCH 和 PUT,PATCH可以修改已存在的服务,PUT 如果服务不存在则新建一个。
curl -i -X PUT http://localhost:8001/services/{服务名称或ID} -d "name=test.service" -d "protocol=http" -d "host=hxonline.hxsd.cn" -d "path=/api"
删除服务
curl -i -X DELETE http://localhost:8001/services/{服务名称或ID} EXP: curl -i -X DELETE http://localhost:8001/services/test.service
返回
HTTP 204 No Content (看到这个就成功啦)三、Route Object(路由)
路由是真正对外提供接口的实体,每个路由都与一个服务相关联,而服务可能有多个与之相关联的路由。每一个匹配给定路线的请求都将被提交给它的相关服务。
字段 | 解释 | 是否必填 |
---|---|---|
protocols | 协议列表,http、https。设置:protocols[]=http&protocols[]=https | 必填 |
methods | 接受请求的方法:GET 或 POST ,二者都行。设置 methods[]=GET&methods[]=POST | 半选填:默认是二者都行 |
hosts | 与此路由匹配的域名列表。例如:example.com。用作form-encode, 设置:hosts[]= Foo.com和hosts[]= BAR.com | 半选填 |
paths | 与此路由匹配的路径列表。例如:/test | 必填:这个很重要,区分多服务 |
strip_path | 选填 | |
preserve_host | 选填 | |
service | 与此路由绑定的服务。设置:service.id= |
必填 |
curl -i -X POST --url http://localhost:8001/routes/ -d "protocols[]=http&protocols[]=https" -d "paths=/test" -d "service.id=xxx-xxxx-xxxx-xx" #服务ID
访问接口
curl -i -X GET http://localhost:8000/test/{后端服务路由} 注:test 是创建路由是的 paths 字段。 EXP: curl -i -X GET http://localhost:8000/test/userinfo2,Retrieve Route (获取路由信息)
获取全部路由
curl -i -X GET http://localhost:8001/routes/
获取某个路由
curl -i -X GET http://localhost:8001/routes/xxx-xxx-xxx #路由ID
获取某服务下的路由
curl -i -X GET http://localhost:8001/services/{服务名或服务ID}/routes
更新路由
可以用 PATCH 和 PUT,PATCH可以修改已存在的路由,PUT 如果路由不存在则新建一个。
curl -i -X PUT http://localhost:8001/routes/xxx-xxx-xxx #路由ID -d "protocols[]=http&protocols[]=https" -d "paths=test"
删除路由
curl -i -X DELETE http://localhost:8001/routes/xxx-xxx-xxx #路由ID总结
到这里kong的服务和路由的设置已经完事了,接下来认证插件和acl的配合来保证对外接口的安全性。
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