I've setup a proxy server that forwards client requests to an upstream server which works fine so far. However, the issue I am trying to solve is that forcing upstream server to log the request id of the proxy server. Is this possible? Just to let you know the $_SERVER
variable of upstream server contains [HTTP_X_REQUEST_ID] => 84708dd39a6c0c91e0d1a97404b40f75
PROXY SERVER
CONFIG
server {
...
add_header X-Request-ID $request_id;
proxy_set_header X-Request-ID $request_id;
location ~ ^/api/(.*) {
proxy_pass http://192.168.0.1:8080/$1$is_args$args;
}
...
}
LOG FORMAT
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" "$request_id"';
LOG
172.17.0.1 ...... "84708dd39a6c0c91e0d1a97404b40f75"
UPSTREAM SERVER
CONFIG
server {
location ~ ^/index\.php(/|$) {
fastcgi_pass php_server:9000;
fastcgi_split_path_info ^(.+\.php)(/.*)$;
include fastcgi_params;
fastcgi_param SCRIPT_FILENAME $realpath_root$fastcgi_script_name;
fastcgi_param DOCUMENT_ROOT $realpath_root;
internal;
}
}
LOG FORMAT
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" "$request_id"';
LOG
172.20.0.1 ...... "172.17.0.1" "7376e0cead9741e7ec07a9194efc80e6"
EXPECTED LOG
172.20.0.1 ...... "172.17.0.1" "84708dd39a6c0c91e0d1a97404b40f75"