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Github 地址：https://github.com/secretflow/kuscia

背景

隐私计算合作机构之间的网络较为复杂，经常存在多层次的网关，网关根据 Path 将请求路由到真正的业务节点。为了给这种组网提供支持，Kuscia 能够对业务请求进行 Path Rewrite，将对应的路由前缀添加到请求 Path。

:::{tip}
网关要求：机构网关处需要进行 Path 前缀卸载。
:::

多机部署配置 Path Rewrite

• Kuscia 中心化部署参考这里
• Kuscia 点对点部署参考这里

下面以 Alice 机构访问 Bob、Carol 机构的通信配置作为示例，其中 Nginx 服务器地址为 1.1.1.1，Bob 机构地址为 2.2.2.2，Carol 机构地址为 3.3.3.3。

# alice accesses bob's addresshttp://1.1.1.1/foo# alice accesses carol's addresshttp://1.1.1.1/bar

Nginx 配置示例如下：

http{# Default is HTTP/1, keepalive is only enabled in HTTP/1.1proxy_http_version1.1;proxy_set_header Connection"";proxy_set_header Host$http_host;proxy_pass_request_headers on;access_log /var/log/access.log;# To allow special characters in headersignore_invalid_headers off;# Maximum number of requests through one keep-alive connectionkeepalive_requests1000;keepalive_timeout 20m;client_max_body_size 2m;# To disable bufferingproxy_buffering off;proxy_request_buffering off;upstream bob{server2.2.2.2:11080weight=1max_fails=5fail_timeout=60s;keepalive32;keepalive_timeout 600s;keepalive_requests1000;}upstream carol{server3.3.3.3:21080weight=1max_fails=5fail_timeout=60s;keepalive32;keepalive_timeout 600s;keepalive_requests1000;}# The reverse proxy needs to remove the prefix path before forwardingserver{location /foo/{proxy_read_timeout 10m;proxy_pass https://bob/;}location /bar/{proxy_read_timeout 10m;proxy_pass https://carol/;}}}

使用 KusciaAPI 配置 Path Rewrite

使用 KusciaAPI 要配置一条 Path Rewrite 路由规则，需要设置endpoint的prefix字段。

下面以机构 Alice 访问机构 Bob 的场景为例，当机构 Bob 网关地址带 Path 时如何调用 KusciaAPI 设置endpoint的prefix字段。

# Execute the example inside the container# --cert is the certificate used for mutual authentication with the serverexportCTR_CERTS_ROOT=/home/kuscia/var/certscurl-k -X POST'https://localhost:8082/api/v1/route/create'--header"Token:$(cat${CTR_CERTS_ROOT}/token)"--header'Content-Type: application/json'--cert${CTR_CERTS_ROOT}/kusciaapi-server.crt --key${CTR_CERTS_ROOT}/kusciaapi-server.key --cacert${CTR_CERTS_ROOT}/ca.crt -d'{ "authentication_type": "Token", "destination": "bob", "endpoint": { "host": "1.1.1.1", "ports": [ { "port": 80, "protocol": "HTTP", "isTLS": true, # If the gateway is a domain and supports https, set to true, otherwise set to false "path_prefix": "/foo" } ] }, "source": "alice", "token_config": { "token_gen_method": "RSA-GEN" } }'