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upstream exchange {
least_conn;
keepalive 20;
# EXCHANGE_PROCESSES e.g.
# server exch.perf.taler:8080;
# server exch.perf.taler:80;
# <SERVERS_HERE>
}
# This format is expected by promtail (configs/etc/monitor/promtail.yaml)
log_format taler 'm=$request_method uri=$uri s=$status '
'q=$args '
'uct=$upstream_connect_time '
'urt=$upstream_response_time '
'rt=$request_time '
'rl=$request_length '
'bs=$bytes_sent';
# Disable logging of HEAD requests
map $request_method $log_line {
'HEAD' 0;
default 1;
}
# Setup a cache with 1GB storage for our exchange
# https://www.nginx.com/blog/nginx-caching-guide/
proxy_cache_path /var/cache/proxy levels=1:2 keys_zone=exchange:1m inactive=1m max_size=1g;
server {
listen 80;
listen 443 ssl;
ssl_certificate /etc/ssl/proxy.cert.pem;
ssl_certificate_key /etc/ssl/proxy.key.pem;
server_name <PROXY_DOMAIN_HERE>;
access_log syslog:server=localhost,facility=user,tag=taler_exchange_proxy,severity=info taler if=$log_line;
allow 172.16.0.0/12;
deny all;
keepalive_timeout 10;
keepalive_requests 100000;
location / {
proxy_cache exchange;
# Dont cache requests too early
proxy_cache_min_uses 16;
proxy_pass http://exchange;
proxy_redirect off;
}
}
server {
listen 80;
server_name localhost;
location /stub_status {
stub_status;
access_log off;
}
}
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