Nginx redireciona e 301

Question

Eu tenho um aplicativo ruby on rails que quero forçar o ssl em um caminho /accounts e http para o restante do aplicativo. Minha configuração atual do Nginx é a seguinte

server {
    listen 80;
    server_name example.com www.example.com;
    rewrite ^/(.*) http://www.example.com/$1 permanent;
}
server {
    listen 80;
    server_name example.com www.example.com;

    root /home/ubuntu/deploy/app_location/public;

    location / {
      rewrite  ^ http://$server_name$request_uri? permanent;
    }

    location /accounts {
       rewrite  ^ https://$server_name$request_uri? permanent;
    }
    location ^~ /assets/ {
      gzip_static on;
      expires max;
      add_header Cache-Control public;
    }

    try_files $uri/index.html $uri @app;

    location @app {
        proxy_pass http://app;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-Forwarded-Proto https;
        proxy_redirect off;
    }

error_page 500 502 503 504 /500.html;
    client_max_body_size 4G;
    keepalive_timeout 10;

#rewrite (.*) https://$server_name$1 permanent;
}

server {
    listen 443;
    ssl on;
    server_name example.com www.example.com;

    ...ssl stuff



  resolver 8.8.8.8;
  add_header Strict-Transport-Security "max-age=31536000; includeSubdomains;";

    root /home/ubuntu/deploy/app_location/public;

     location / {
       rewrite  ^ http://$server_name$request_uri? permanent;
       }

    location /accounts {
    }

    location ^~ /assets/ {
      gzip_static on;
      expires max;
      add_header Cache-Control public;
    }

    try_files $uri/index.html $uri @app;

    location @app {
        proxy_pass http://app;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        #proxy_set_header Host $host;
        proxy_set_header X-Forwarded-Proto https;
        proxy_redirect off;
     }

    error_page 500 502 503 504 /500.html;
    client_max_body_size 4G;
    keepalive_timeout 10;
}

O Nginx continua redirecionando e não indo para a raiz do aplicativo, o que estou fazendo de errado aqui?