location ~* /lxd/(?<req_upstream_host>[^/]*?)/(?<req_upstream_uri>.*) {
                resolver 10.252.212.1;
                proxy_pass http://$req_upstream_host/$req_upstream_uri;

                set $frontend_redirect_target $scheme://$host/lxd/$req_upstream_host;
                proxy_redirect http://$req_upstream_host/ $frontend_redirect_target/;
                proxy_redirect / $frontend_redirect_target/;
                proxy_set_header Host $host;
                proxy_set_header X-Real-IP $remote_addr;

server {
        listen 80 default_server;
        listen [::]:80 default_server;

        return 301 https://$host$request_uri;
}

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

server {
        # SSL configuration
        #
        listen 443 ssl default_server http2;
        listen [::]:443 ssl default_server http2;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.

server {
        listen 80 default_server;
        listen [::]:80 default_server;

        return 301 https://$host$request_uri;
}

server {
        # SSL configuration
        #
        listen 443 ssl default_server http2;
        listen [::]:443 ssl default_server http2;
        #
        # Note: You should disable gzip for SSL traffic.
        # See: bugs.debian.org/773332
        #
        # Read up on ssl_ciphers to ensure a secure configuration.
        # See: bugs.debian.org/765782

ssl_certificate /etc/letsencrypt/live/try.vulpin.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/try.vulpin.com/privkey.pem;
#include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot

# sysbench --test=cpu --cpu-max-prime=20000 --num-threads=2 run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 2

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 20000


Test execution summary:
    total time:                          9.8672s
    total number of events:              10000
    total time taken by event execution: 19.7306
    per-request statistics:
         min:                                  1.96ms

# sysbench --test=cpu --cpu-max-prime=20000 --num-threads=8 run
sysbench 0.4.12:  multi-threaded system evaluation benchmark

Running the test with following options:
Number of threads: 8

Doing CPU performance benchmark

Threads started!
Done.

Maximum prime number checked in CPU test: 20000


Test execution summary:
    total time:                          5.8546s
    total number of events:              10000
    total time taken by event execution: 46.6695
    per-request statistics:
         min:                                  4.55ms