global
	log /dev/log	local0 warning
	log /dev/log	local1 warning
	chroot /var/lib/haproxy
	user haproxy
	group haproxy
	daemon
        nbproc 1

        maxconn 25000

	stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
	stats timeout 30s
	stats socket ipv4@0.0.0.0:9999 level admin

	# Default SSL material locations
	ca-base /etc/ssl/certs
	crt-base /etc/ssl/private

	# Default ciphers to use on SSL-enabled listening sockets.
	# For more information, see ciphers(1SSL). This list is from:
	#  https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
	# An alternative list with additional directives can be obtained from
	#  https://mozilla.github.io/server-side-tls/ssl-config-generator/?server=haproxy
	ssl-default-bind-ciphers ECDH+AESGCM:DH+AESGCM:ECDH+AES256:DH+AES256:ECDH+AES128:DH+AES:RSA+AESGCM:RSA+AES:!aNULL:!MD5:!DSS
	ssl-default-bind-options no-sslv3

	tune.ssl.default-dh-param 2048

defaults
	log     global
	mode    http
	option  httplog
        option  http-server-close
	option	dontlognull
        option  forwardfor
        option  contstats
	retries 3
	timeout queue 30s
	maxconn 20000
	backlog 10000
        timeout connect 60s
        timeout client 30s
        timeout server 900s
	timeout tunnel 0s
	errorfile 400 /etc/haproxy/errors/400.http
	errorfile 403 /etc/haproxy/errors/403.http
	errorfile 408 /etc/haproxy/errors/408.http
	errorfile 500 /etc/haproxy/errors/500.http
	errorfile 502 /etc/haproxy/errors/502.http
	errorfile 503 /etc/haproxy/errors/503.http
	errorfile 504 /etc/haproxy/errors/504.http

frontend parity-rpc
	bind 0.0.0.0:8545
	default_backend parity-rpc
	stats enable
	stats hide-version
	stats realm Haproxy\ Statistics
	stats uri /haproxy?stats
	stats auth qn:haproxy

backend parity-rpc
	balance leastconn
	option redispatch

	# local storage
        server 159.65.33.68 159.65.33.68:8545 check maxconn 40


frontend parity-ws
	bind 0.0.0.0:8546
    timeout client 25920s
	# detect capacity issues in production farm
	acl MAIN_not_enough_capacity nbsrv(parity-ws-backend) le 2
	# failover traffic to backup farm
	use_backend parity-ws-backup if MAIN_not_enough_capacity
	default_backend parity-ws-backend

backend parity-ws-backend
	balance leastconn
	option redispatch
    timeout server 25920s

	# local storage
    server 159.65.33.68 159.65.33.68:8546 check maxconn 1
	server 157.245.217.84 157.245.217.84:8546 check maxconn 1

backend parity-ws-backup
    option allbackups
	server 161.35.102.21 161.35.102.21:8546 check maxconn 1500
    server 143.244.163.47 143.244.163.47:8546 check maxconn 1500 backup