map $http_upgrade $connection_upgrade {
    default upgrade;
    ''        close;
}

upstream grafana_backend {
	server unix:/run/grafana/grafana.sock;
	keepalive 32;
}

server {
    listen                  443 ssl http2;
    listen                  [::]:443 ssl http2;
    server_name             grafana.local.eax.app;
    root /usr/share/nginx/html;
    index index.html index.htm;
    
    # SSL
    ssl_certificate         /etc/letsencrypt/live/local.eax.app/fullchain.pem;
    ssl_certificate_key     /etc/letsencrypt/live/local.eax.app/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/local.eax.app/chain.pem;

    # security
    # include                 nginxconfig.io/security.conf;

    # restrict methods
    if ($request_method !~ ^(GET|POST|PUT|HEAD|CONNECT|OPTIONS|TRACE|DELETE)$) {
        return '405';
    }

    # logging
    access_log /var/log/nginx/grafana.local.eax.app.access.log;
    error_log  /var/log/nginx/grafana.local.eax.app.error.log warn;
    location / {
        proxy_pass http://grafana_backend/;
        proxy_set_header Host $http_host;
    }

    location /api/live {
	rewrite  ^/(.*)  /$1 break;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $http_host;
        proxy_pass http://grafana_backend/;
    }
    # additional config
    #include nginxconfig.io/general.conf;
}

# HTTP redirect
server {
    listen      80;
    listen      [::]:80;
    server_name grafana.local.eax.app;
    include     nginxconfig.io/letsencrypt.conf;

    location / {
        return 301 https://grafana.local.eax.app$request_uri;
    }
}