# Pingora canary handoff snippet.
# 中文注释：本文件只提供人工 include 后的 Nginx -> Pingora 试跑入口，不默认承接公网流量。
# 启用前复制到目标机并替换 __GENARRATIVE_PINGORA_PROBE_TOKEN__，确认只允许可信来源访问。

location = /__genarrative_pingora_canary/healthz {
    allow 127.0.0.1;
    allow ::1;
    deny all;

    proxy_http_version 1.1;
    proxy_set_header Connection "";
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Request-Id $request_id;
    proxy_set_header X-Genarrative-Pingora-Probe "__GENARRATIVE_PINGORA_PROBE_TOKEN__";
    add_header X-Genarrative-Nginx-Handoff pingora-canary always;
    proxy_pass http://127.0.0.1:18081/__genarrative_pingora/healthz;
}

location ~ ^/__genarrative_pingora_canary/v1/database/[^/]+/subscribe$ {
    allow 127.0.0.1;
    allow ::1;
    deny all;

    rewrite ^/__genarrative_pingora_canary(/.*)$ $1 break;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "Upgrade";
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Request-Id $request_id;
    proxy_read_timeout 3600s;
    add_header X-Genarrative-Nginx-Handoff pingora-canary always;
    proxy_pass http://127.0.0.1:18081;
}

location /__genarrative_pingora_canary/ {
    allow 127.0.0.1;
    allow ::1;
    deny all;

    rewrite ^/__genarrative_pingora_canary(/.*)$ $1 break;
    proxy_http_version 1.1;
    proxy_buffering off;
    proxy_read_timeout 3600s;
    proxy_send_timeout 3600s;
    proxy_set_header Connection "";
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;
    proxy_set_header X-Forwarded-Host $host;
    proxy_set_header X-Request-Id $request_id;
    proxy_set_header X-Genarrative-Pingora-Canary "nginx-prefixed";
    add_header X-Accel-Buffering no always;
    add_header X-Genarrative-Nginx-Handoff pingora-canary always;
    proxy_pass http://127.0.0.1:18081;
}