nacos
基于 Nacos 的服务发现#
Nacos 服务发现模块目前是实验性的。
当前模块的性能有待改进：
- 并行发送请求。
Nacos 配置#
在文件 conf/config.yaml 中添加以下配置到：
discovery: nacos: host: - "http://${username}:${password}@${host1}:${port1}" prefix: "/nacos/v1/" fetch_interval: 30 # default 30 sec weight: 100 # default 100 timeout: connect: 2000 # default 2000 ms send: 2000 # default 2000 ms read: 5000 # default 5000 ms也可以这样简洁配置（未配置项使用默认值）：
discovery: nacos: host: - "http://192.168.33.1:8848"Upstream 设置#
例如，转发 URI 匹配 "/nacos/*" 的请求到一个上游服务， 该服务在 Nacos 中的服务名是 APISIX-NACOS ，查询地址是 http://192.168.33.1:8848/nacos/v1/ns/instance/list?serviceName=APISIX-NACOS ，创建路由时指定服务发现类型为 nacos 。
$ curl http://127.0.0.1:9080/apisix/admin/routes/1 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '{ "uri": "/nacos/*", "upstream": { "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos" }}'响应如下：
{ "node": { "key": "\/apisix\/routes\/1", "value": { "id": "1", "create_time": 1615796097, "status": 1, "update_time": 1615799165, "upstream": { "hash_on": "vars", "pass_host": "pass", "scheme": "http", "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos" }, "priority": 0, "uri": "\/nacos\/*" } }, "action": "set"}参数#
| 名字 | 类型 | 可选项 | 默认值 | 有效值 | 说明 |
|---|---|---|---|---|---|
| namespace_id | string | 可选 | public | 服务所在的命名空间 | |
| group_name | string | 可选 | DEFAULT_GROUP | 服务所在的组 |
指定命名空间#
例如，转发 URI 匹配 "/nacosWithNamespaceId/*" 的请求到一个上游服务， 该服务在 Nacos 中的服务名是 APISIX-NACOS，命名空间是 test_ns，查询地址是 http://192.168.33.1:8848/nacos/v1/ns/instance/list?serviceName=APISIX-NACOS&namespaceId=test_ns ，创建路由时指定服务发现类型为 nacos 。
$ curl http://127.0.0.1:9080/apisix/admin/routes/2 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '{ "uri": "/nacosWithNamespaceId/*", "upstream": { "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos", "discovery_args": { "namespace_id": "test_ns" } }}'响应如下：
{ "node": { "key": "\/apisix\/routes\/2", "value": { "id": "2", "create_time": 1615796097, "status": 1, "update_time": 1615799165, "upstream": { "hash_on": "vars", "pass_host": "pass", "scheme": "http", "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos", "discovery_args": { "namespace_id": "test_ns" } }, "priority": 0, "uri": "\/nacosWithNamespaceId\/*" } }, "action": "set"}指定组#
例如，转发 URI 匹配 "/nacosWithGroupName/*" 的请求到一个上游服务， 该服务在 Nacos 中的服务名是 APISIX-NACOS，组名是 test_group，查询地址是 http://192.168.33.1:8848/nacos/v1/ns/instance/list?serviceName=APISIX-NACOS&groupName=test_group ，创建路由时指定服务发现类型为 nacos 。
$ curl http://127.0.0.1:9080/apisix/admin/routes/3 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '{ "uri": "/nacosWithGroupName/*", "upstream": { "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos", "discovery_args": { "group_name": "test_group" } }}'响应如下：
{ "node": { "key": "\/apisix\/routes\/3", "value": { "id": "3", "create_time": 1615796097, "status": 1, "update_time": 1615799165, "upstream": { "hash_on": "vars", "pass_host": "pass", "scheme": "http", "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos", "discovery_args": { "group_name": "test_group" } }, "priority": 0, "uri": "\/nacosWithGroupName\/*" } }, "action": "set"}同时指定命名空间和组#
例如，转发 URI 匹配 "/nacosWithNamespaceIdAndGroupName/*" 的请求到一个上游服务， 该服务在 Nacos 中的服务名是 APISIX-NACOS，命名空间是 test_ns，组名是 test_group，查询地址是 http://192.168.33.1:8848/nacos/v1/ns/instance/list?serviceName=APISIX-NACOS&namespaceId=test_ns&groupName=test_group ，创建路由时指定服务发现类型为 nacos 。
$ curl http://127.0.0.1:9080/apisix/admin/routes/4 -H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -i -d '{ "uri": "/nacosWithNamespaceIdAndGroupName/*", "upstream": { "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos", "discovery_args": { "namespace_id": "test_ns", "group_name": "test_group" } }}'响应如下：
{ "node": { "key": "\/apisix\/routes\/4", "value": { "id": "4", "create_time": 1615796097, "status": 1, "update_time": 1615799165, "upstream": { "hash_on": "vars", "pass_host": "pass", "scheme": "http", "service_name": "APISIX-NACOS", "type": "roundrobin", "discovery_type": "nacos", "discovery_args": { "namespace_id": "test_ns", "group_name": "test_group" } }, "priority": 0, "uri": "\/nacosWithNamespaceIdAndGroupName\/*" } }, "action": "set"}