ip-restriction

描述

ip-restriction 插件支持通过配置 IP 地址白名单或黑名单来限制 IP 地址对上游资源的访问。限制 IP 对资源的访问有助于防止未经授权的访问并加强 API 安全性。

属性

名称	类型	必选项	默认值	有效值	描述
whitelist	array[string]	否			允许访问的 IP 或 CIDR 范围列表。`whitelist` 和 `blacklist` 必须且只能配置其中一个。
blacklist	array[string]	否			拒绝访问的 IP 或 CIDR 范围列表。`whitelist` 和 `blacklist` 必须且只能配置其中一个。
message	string	否	”Your IP address is not allowed”	[1, 1024]	IP 被拒绝时返回给客户端的消息。
response_code	integer	否	403	[403, 404]	因 IP 地址限制而拒绝请求时返回的 HTTP 响应码。

示例

以下示例演示了如何针对不同场景配置 ip-restriction 插件。

NOTE

你可以这样从 config.yaml 中获取 admin_key 并存入环境变量：

admin_key=$(yq '.deployment.admin.admin_key[0].key' conf/config.yaml | sed 's/"//g')

通过白名单限制访问

以下示例演示了如何将有权访问上游资源的 IP 地址列表列入白名单，并自定义拒绝访问的错误消息。

admin-api

使用 ip-restriction 插件创建路由，将一系列 IP 列入白名单，并自定义拒绝访问时的错误消息：

curl "http://127.0.0.1:9180/apisix/admin/routes" -X PUT \
  -H "X-API-KEY: ${admin_key}" \
  -d '{
    "id": "ip-restriction-route",
    "uri": "/anything",
    "plugins": {
      "ip-restriction": {
        "whitelist": [
          "192.168.0.1/24"
        ],
        "message": "Access denied"
      }
    },
    "upstream": {
      "type": "roundrobin",
      "nodes": {
        "httpbin.org:80": 1
      }
    }
  }'

adc

adc.yaml

services:
  - name: ip-restriction-service
    routes:
      - name: ip-restriction-route
        uris:
          - /anything
        plugins:
          ip-restriction:
            whitelist:
              - "192.168.0.1/24"
            message: "Access denied"
    upstream:
      type: roundrobin
      nodes:
        - host: httpbin.org
          port: 80
          weight: 1

将配置同步到网关：

adc sync -f adc.yaml

aic

gateway-api

ip-restriction-ic.yaml

apiVersion: v1
kind: Service
metadata:
  namespace: aic
  name: httpbin-external-domain
spec:
  type: ExternalName
  externalName: httpbin.org
---
apiVersion: apisix.apache.org/v1alpha1
kind: PluginConfig
metadata:
  namespace: aic
  name: ip-restriction-plugin-config
spec:
  plugins:
    - name: ip-restriction
      config:
        whitelist:
          - "192.168.0.1/24"
        message: "Access denied"
---
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  namespace: aic
  name: ip-restriction-route
spec:
  parentRefs:
    - name: apisix
  rules:
    - matches:
        - path:
            type: Exact
            value: /anything
      filters:
        - type: ExtensionRef
          extensionRef:
            group: apisix.apache.org
            kind: PluginConfig
            name: ip-restriction-plugin-config
      backendRefs:
        - name: httpbin-external-domain
          port: 80

将配置应用到集群：

kubectl apply -f ip-restriction-ic.yaml

apisix-crd

ip-restriction-ic.yaml

apiVersion: apisix.apache.org/v2
kind: ApisixUpstream
metadata:
  namespace: aic
  name: httpbin-external-domain
spec:
  ingressClassName: apisix
  externalNodes:
  - type: Domain
    name: httpbin.org
---
apiVersion: apisix.apache.org/v2
kind: ApisixRoute
metadata:
  namespace: aic
  name: ip-restriction-route
spec:
  ingressClassName: apisix
  http:
    - name: ip-restriction-route
      match:
        paths:
          - /anything
      upstreams:
      - name: httpbin-external-domain
      plugins:
      - name: ip-restriction
        enable: true
        config:
          whitelist:
            - "192.168.0.1/24"
          message: "Access denied"

将配置应用到集群：

kubectl apply -f ip-restriction-ic.yaml

向路由发送请求：

curl -i "http://127.0.0.1:9080/anything"

如果你的 IP 被允许，你应该会收到 HTTP/1.1 200 OK 响应。如果不允许，你应该会收到 HTTP/1.1 403 Forbidden 响应，并显示以下错误消息：

{"message":"Access denied"}

使用修改后的 IP 限制访问

以下示例演示了如何使用 real-ip 插件修改用于 IP 限制的 IP。如果 APISIX 位于反向代理之后，并且 APISIX 无法获得真实客户端 IP，则此功能特别有用。

admin-api

使用 ip-restriction 插件创建路由，将特定 IP 地址列入白名单，并从 URL 参数 realip 获取客户端 IP 地址：

curl "http://127.0.0.1:9180/apisix/admin/routes" -X PUT \
  -H "X-API-KEY: ${admin_key}" \
  -d '{
    "id": "ip-restriction-route",
    "uri": "/anything",
    "plugins": {
      "ip-restriction": {
        "whitelist": [
          "192.168.1.241"
        ]
      },
      "real-ip": {
        "source": "arg_realip"
      }
    },
    "upstream": {
      "type": "roundrobin",
      "nodes": {
      "httpbin.org:80": 1
      }
    }
  }'

adc

adc.yaml

services:
  - name: ip-restriction-service
    routes:
      - name: ip-restriction-route
        uris:
          - /anything
        plugins:
          ip-restriction:
            whitelist:
              - "192.168.1.241"
          real-ip:
            source: arg_realip
    upstream:
      type: roundrobin
      nodes:
        - host: httpbin.org
          port: 80
          weight: 1

将配置同步到网关：

adc sync -f adc.yaml

aic

gateway-api

ip-restriction-ic.yaml

apiVersion: v1
kind: Service
metadata:
  namespace: aic
  name: httpbin-external-domain
spec:
  type: ExternalName
  externalName: httpbin.org
---
apiVersion: apisix.apache.org/v1alpha1
kind: PluginConfig
metadata:
  namespace: aic
  name: ip-restriction-realip-plugin-config
spec:
  plugins:
    - name: ip-restriction
      config:
        whitelist:
          - "192.168.1.241"
    - name: real-ip
      config:
        source: arg_realip
---
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
  namespace: aic
  name: ip-restriction-route
spec:
  parentRefs:
    - name: apisix
  rules:
    - matches:
        - path:
            type: Exact
            value: /anything
      filters:
        - type: ExtensionRef
          extensionRef:
            group: apisix.apache.org
            kind: PluginConfig
            name: ip-restriction-realip-plugin-config
      backendRefs:
        - name: httpbin-external-domain
          port: 80

将配置应用到集群：

kubectl apply -f ip-restriction-ic.yaml

apisix-crd

ip-restriction-ic.yaml

apiVersion: apisix.apache.org/v2
kind: ApisixUpstream
metadata:
  namespace: aic
  name: httpbin-external-domain
spec:
  ingressClassName: apisix
  externalNodes:
  - type: Domain
    name: httpbin.org
---
apiVersion: apisix.apache.org/v2
kind: ApisixRoute
metadata:
  namespace: aic
  name: ip-restriction-route
spec:
  ingressClassName: apisix
  http:
    - name: ip-restriction-route
      match:
        paths:
          - /anything
      upstreams:
      - name: httpbin-external-domain
      plugins:
      - name: ip-restriction
        enable: true
        config:
          whitelist:
            - "192.168.1.241"
      - name: real-ip
        enable: true
        config:
          source: arg_realip

将配置应用到集群：

kubectl apply -f ip-restriction-ic.yaml

向路由发送请求：

curl -i "http://127.0.0.1:9080/anything?realip=192.168.1.241"

你应该会收到 HTTP/1.1 200 OK 响应。

使用不同的 IP 地址发送另一个请求：

curl -i "http://127.0.0.1:9080/anything?realip=192.168.10.24"

你应该会收到 HTTP/1.1 403 Forbidden 响应。

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