Caminho de reescrita NGINX para subdomínio com resultados cloudflare em muitos redirecionamentos

Caminho de reescrita NGINX para subdomínio com resultados cloudflare em muitos redirecionamentos

Quero conseguir a reescrita do URL como tal:
https://documentation.domain.com/loginto https://app.domain.com/login
https://api.domain.com/loginto https://app.domain.com/login
, qualquer sudomain com url {anything}.domain.com/login tohttps://app.domain.com/login

https://app.domain.com/sdkspara https://documentation.domain.com/sdks(com todos os parâmetros de consulta preservados)
https://api.domain.com/sdkspara https://documentation.domain.com/sdks(com todos os parâmetros de consulta preservados)
, qualquer sudomain com url {anything}.domain.com/sdks parahttps://documentation.domain.com/sdks

https://app.domain.com/restApipara https://documentation.domain.com/restApi(com todos os parâmetros de consulta preservados)
https://api.domain.com/restApipara https://documentation.domain.com/restApi(com todos os parâmetros de consulta preservados)
, qualquer sudomain com url {anything}.domain.com/restApi parahttps://documentation.domain.com/restApi

Isso é o que tenho atualmente:

server {
        listen 443 ssl http2 default_server;
        listen [::]:443 ssl http2 default_server;

        ssl_certificate     /home/company/server/ssl/domain_cloudflare.pem;
        ssl_certificate_key /home/company/server/ssl/domain_cloudflare_privatekey.key;

        server_name www.*.domain.com *.domain.com;

        client_body_buffer_size     32k;
        client_header_buffer_size   8k;
        large_client_header_buffers 4 16k;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                proxy_pass        https://localhost:8443;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header  Host $http_host;
        }

        location /login {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                proxy_pass        https://localhost:8443/login;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header  Host $http_host;
                return 302 https://app.domain.com/login;
        }

        location /restApi {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                proxy_pass        https://localhost:8443/restApi;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header  Host $http_host;
                return 302 https://app.domain.com/restApi;   
        }


        location /sdks {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                proxy_pass        https://localhost:8443/sdks;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header  Host $http_host;
                return 302 https://app.domain.com/sdks;
        }


        location /api {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                proxy_pass        https://localhost:8443/api;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header  Host $http_host;
                return 302 https://api.domain.com/api;
        }
}

Cloudflare SSL eu configurei como Full Strict. Mudar para Full/Flexible não altera nada. Esta configuração funciona principalmente. Isso funciona, mas resulta em ERR_TOO_MANY_REDIRECTS Como posso corrigir isso? o que há de errado aqui? Por favor me ajude com isso

EDITAR:

server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;


        ssl_certificate     /home/company/domain/ssl/domain_cloudflare.pem;
        ssl_certificate_key /home/company/domain/ssl/domain_cloudflare_privatekey.key;


        server_name app.domain.com;

        client_body_buffer_size     32k;
        client_header_buffer_size   8k;
        large_client_header_buffers 4 16k;

        location / {
               proxy_pass        https://localhost:8443/login;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
               proxy_set_header  X-Forwarded-Host $http_host;
               proxy_set_header  X-Forwarded-Server $host;
               proxy_set_header  Host $http_host;
               proxy_set_header  X-Forwarded-Proto https;
#               return 302 https://app.domain.com/login;
        }

}

server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;


        ssl_certificate     /home/company/domain/ssl/domain_cloudflare.pem;
        ssl_certificate_key /home/company/domain/ssl/domain_cloudflare_privatekey.key;


        server_name documentation.domain.com;

        client_body_buffer_size     32k;
        client_header_buffer_size   8k;
        large_client_header_buffers 4 16k;

        location /sdks {
               proxy_pass        https://localhost:8443/sdks;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
               proxy_set_header  X-Forwarded-Host $http_host;
               proxy_set_header  X-Forwarded-Server $host;
               proxy_set_header  Host $http_host;
               proxy_set_header  X-Forwarded-Proto https;
#              return 302 https://documentation.domain.com/sdks;
        }

        location /restApi {
               proxy_pass        https://localhost:8443/restApi;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
               proxy_set_header  X-Forwarded-Host $http_host;
               proxy_set_header  X-Forwarded-Server $host;
               proxy_set_header  Host $http_host;
               proxy_set_header  X-Forwarded-Proto https;
#               return 302 https://documentation.domain.com/restApi;
        }

}

server {
        listen 443 ssl http2;
        listen [::]:443 ssl http2;


        ssl_certificate     /home/company/domain/ssl/domain_cloudflare.pem;
        ssl_certificate_key /home/company/domain/ssl/domain_cloudflare_privatekey.key;


        server_name api.domain.com;

        client_body_buffer_size     32k;
        client_header_buffer_size   8k;
        large_client_header_buffers 4 16k;

        location /api {
               proxy_pass        https://localhost:8443/;
                proxy_set_header  X-Real-IP $remote_addr;
                proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
               proxy_set_header  X-Forwarded-Host $http_host;
               proxy_set_header  X-Forwarded-Server $host;
               proxy_set_header  Host $http_host;
               proxy_set_header  X-Forwarded-Proto https;
#               return 302 https://api.domain.com/;
        }

}

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