feat: try new ci/cd blue and green

docker/nginx/bemeal-upstream.blue.inc

@@ -0,0 +1,4 @@
+upstream bemeal_api {
+    server 127.0.0.1:8081 max_fails=3 fail_timeout=10s;
+    keepalive 32;
+}

docker/nginx/bemeal-upstream.green.inc

@@ -0,0 +1,4 @@
+upstream bemeal_api {
+    server 127.0.0.1:8082 max_fails=3 fail_timeout=10s;
+    keepalive 32;
+}

docker/nginx/bemeal.conf

@@ -0,0 +1,51 @@
+map $http_upgrade $connection_upgrade {
+    default upgrade;
+    '' close;
+}
+
+include /etc/nginx/conf.d/bemeal-upstream.inc;
+
+server {
+    listen 80;
+    listen [::]:80;
+    server_name bemeal.leonmorival.com;
+
+    location /.well-known/acme-challenge/ {
+        root /var/www/certbot;
+    }
+
+    location / {
+        return 301 https://$host$request_uri;
+    }
+}
+
+server {
+    listen 443 ssl;
+    listen [::]:443 ssl;
+    http2 on;
+    server_name bemeal.leonmorival.com;
+
+    ssl_certificate /etc/letsencrypt/live/bemeal.leonmorival.com/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/bemeal.leonmorival.com/privkey.pem;
+
+    client_max_body_size 50m;
+
+    location / {
+        proxy_pass http://bemeal_api;
+        proxy_http_version 1.1;
+
+        proxy_set_header Host $host;
+        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 $scheme;
+        proxy_set_header X-Forwarded-Host $host;
+        proxy_set_header X-Forwarded-Port $server_port;
+
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+
+        proxy_read_timeout 90s;
+        proxy_send_timeout 90s;
+        proxy_redirect off;
+    }
+}