Magento 2 - 502 Bad Gateway after ssl configuration - ssl

Question

I am using a ssl certificate provided by comodo that seems to me to be propely configured because my website is showing the https correctly. However, I am getting 502 Bad Gateway when I access my store with ssl.
I am using nginx server and this is how I am doing this.
server {
root /var/www/html/public/;
index index.php index.html;
listen 80 default_server;
error_log /var/log/nginx/error-zzdefault.log;
access_log /var/log/nginx/access-zzdefault.log;
location / {
proxy_pass http://magento/;
}
location /phpmyadmin/ {
proxy_pass http://phpmyadmin/;
}
}
server {
listen 443 ssl;
server_name mydomain.com.br;
keepalive_timeout 70;
ssl_certificate /etc/nginx/ssl/mydomain-bundle.crt;
ssl_certificate_key /etc/nginx/ssl/mydomain.key;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers HIGH:!aNULL:!MD5;
error_log /var/log/nginx/error-zzdefault.log;
access_log /var/log/nginx/access-zzdefault.log;
root /var/www/html/public/;
index index.php index.html;
location / {
proxy_pass https://magento/;
}
}

Answer 1

Alter the proxy_pass on the second server location who has SSL certified:
The Ip 32.999.999.999:80 should be your server main Ip address. Passing
the default port 80.
location / {
proxy_pass http://32.999.999.999:80;
      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 https;
      proxy_set_header X-Forwarded-Port 443;
      proxy_set_header Host $host; }