Installs Mainsail, but buggy

config/nginx/common_vars.conf

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+# /etc/nginx/conf.d/common_vars.conf
+
+map $http_upgrade $connection_upgrade {
+    default upgrade;
+    '' close;
+}

config/nginx/mainsail-proxy.conf

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+# location ~ ^/PRINTERNAMELC/(.*) {
+#     proxy_pass http://127.0.0.1:PORT/$1;
+#     proxy_http_version 1.1;
+#     proxy_set_header Upgrade $http_upgrade;
+#     proxy_set_header Connection $connection_upgrade;
+#     proxy_set_header Host $host;
+#     proxy_buffering off;
+#     proxy_read_timeout 10800s;
+#     proxy_send_timeout 10800s;
+#     proxy_connect_timeout 30s;
+# }
+location ~ ^/PRINTERNAMELC/(.*) {
+    return 301 $scheme://$host:PORT/$1;
+}

config/nginx/mainsail-site.conf

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+# config file for a specific printer subdir
+server {
+    listen PORT default_server;
+    rewrite_log on;
+    access_log /var/log/nginx/PRINTERNAME-mainsail-access.log;
+    error_log /var/log/nginx/PRINTERNAME-mainsail-error.log info;
+
+    # disable this section on smaller hardware like a pi zero
+    gzip on;
+    gzip_vary on;
+    gzip_proxied any;
+    gzip_proxied expired no-cache no-store private auth;
+    gzip_comp_level 4;
+    gzip_buffers 16 8k;
+    gzip_http_version 1.1;
+    gzip_types text/plain text/css text/xml text/javascript application/javascript application/x-javascript application/json application/xml;
+
+    index index.html;
+
+    # disable max upload size checks
+    client_max_body_size 0;
+
+    # disable proxy request buffering
+    proxy_request_buffering off;
+    root /home/pi/PRINTERNAME/mainsail;
+
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    location = /index.html {
+        add_header Cache-Control "no-store, no-cache, must-revalidate";
+    }
+
+    location /websocket {
+        proxy_pass http://PRINTERNAMELCapiserver/websocket;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection $connection_upgrade;
+        proxy_set_header Host $http_host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_read_timeout 86400;
+    }
+
+    location ~ ^/(printer|api|access|machine|server)/ {
+        proxy_pass http://PRINTERNAMELCapiserver$request_uri;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Host $http_host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Scheme $scheme;
+    }
+}

config/nginx/mainsail-upstream.conf

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+# config file for a specific printer upstream
+
+upstream PRINTERNAMELCapiserver {
+    ip_hash;
+    server 127.0.0.1:PORT;
+}

config/nginx/site.conf

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+# /etc/nginx/sites-available/site.conf
+
+server {
+    listen 80 default_server;
+    rewrite_log on;
+    access_log /var/log/nginx/mainsail-access.log;
+    error_log /var/log/nginx/mainsail-error.log debug;
+
+    # disable this section on smaller hardware like a pi zero
+    gzip on;
+    gzip_vary on;
+    gzip_proxied any;
+    gzip_proxied expired no-cache no-store private auth;
+    gzip_comp_level 4;
+    gzip_buffers 16 8k;
+    gzip_http_version 1.1;
+    gzip_types text/plain text/css text/xml text/javascript application/javascript application/x-javascript application/json application/xml;
+
+    index index.html;
+    server_name _;
+
+    # disable max upload size checks
+    client_max_body_size 0;
+
+    # disable proxy request buffering
+    proxy_request_buffering off;
+
+    include /etc/nginx/mainsail/proxy/*.conf;
+
+    location /webcam/ {
+        postpone_output 0;
+        proxy_buffering off;
+        proxy_ignore_headers X-Accel-Buffering;
+        access_log off;
+        error_log off;
+        proxy_pass http://mjpgstreamer1/;
+    }
+
+    location /webcam2/ {
+        postpone_output 0;
+        proxy_buffering off;
+        proxy_ignore_headers X-Accel-Buffering;
+        access_log off;
+        error_log off;
+        proxy_pass http://mjpgstreamer2/;
+    }
+
+    location /webcam3/ {
+        postpone_output 0;
+        proxy_buffering off;
+        proxy_ignore_headers X-Accel-Buffering;
+        access_log off;
+        error_log off;
+        proxy_pass http://mjpgstreamer3/;
+    }
+
+    location /webcam4/ {
+        postpone_output 0;
+        proxy_buffering off;
+        proxy_ignore_headers X-Accel-Buffering;
+        access_log off;
+        error_log off;
+        proxy_pass http://mjpgstreamer4/;
+    }
+
+    location /webcam5/ {
+        postpone_output 0;
+        proxy_buffering off;
+        proxy_ignore_headers X-Accel-Buffering;
+        access_log off;
+        error_log off;
+        proxy_pass http://mjpgstreamer5/;
+    }
+
+    location /webcam6/ {
+        postpone_output 0;
+        proxy_buffering off;
+        proxy_ignore_headers X-Accel-Buffering;
+        access_log off;
+        error_log off;
+        proxy_pass http://mjpgstreamer6/;
+    }
+
+    location /webcam7/ {
+        postpone_output 0;
+        proxy_buffering off;
+        proxy_ignore_headers X-Accel-Buffering;
+        access_log off;
+        error_log off;
+        proxy_pass http://mjpgstreamer7/;
+    }
+}

config/nginx/upstreams.conf

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+# /etc/nginx/conf.d/upstreams.conf
+
+include /etc/nginx/mainsail/upstream/*.conf;
+
+upstream mjpgstreamer1 {
+    ip_hash;
+    server 127.0.0.1:8080;
+}
+
+upstream mjpgstreamer2 {
+    ip_hash;
+    server 127.0.0.1:8081;
+}
+
+upstream mjpgstreamer3 {
+    ip_hash;
+    server 127.0.0.1:8082;
+}
+
+upstream mjpgstreamer4 {
+    ip_hash;
+    server 127.0.0.1:8083;
+}
+
+upstream mjpgstreamer5 {
+    ip_hash;
+    server 127.0.0.1:8084;
+}
+
+upstream mjpgstreamer6 {
+    ip_hash;
+    server 127.0.0.1:8085;
+}
+
+upstream mjpgstreamer7 {
+    ip_hash;
+    server 127.0.0.1:8086;
+}