haproxy.cfg

global
	# global connection limit
	maxconn		50000
	# sends logs to stdout
	log		stdout format raw local0 info
	# number of threads
	nbthread	2

# ------- HTTP Section ---------

# defaults must be set prior to sections using them (can be redefined later)
defaults
	log global
	mode http
	timeout connect 2s
        timeout client 5s
        timeout server 5s

# expose route with stats (optional, but recommended)
listen stats
	bind		127.0.0.1:9090
	stats		enable
	stats		uri /monitor
	stats		refresh 5s

# http api listener (endpoint where external users will connect)
frontend http-in
	bind			*:18888
	option			httplog
	default_backend		nodeos-http-api
	# route access control
	acl	blacklist	path_beg -i /v1/producer
	acl	blacklist	path_beg -i /v1/net
	acl	blacklist	path_beg -i /v1/wallet
	acl	whitelist	path_beg -i /v1
	http-request		deny if blacklist OR !whitelist


# http backend with multiple nodeos (chain_api_plugin)
backend nodeos-http-api
	# load balacing mode (roundrobin,leastconn,first,random,etc...)
	balance		leastconn
	# define the path and method for healthcheck
	option		httpchk GET /v1/chain/get_info HTTP/1.1
	# http 1.1 requires defining a Host
	http-check	send hdr Host eosrio.io
	# add default options for all servers
	default-server	check
	# define member servers
	server		node1 127.0.0.1:28888
	server		node2 127.0.0.1:38888

# ------ TCP Section -----------

# redefine defaults for tcp mode
defaults
	log		global
	mode		tcp
	# different timeouts can be defined here
	timeout		connect 5s
	timeout		client	10s
	timeout		server	10s

# listener for incoming peers
frontend p2p-in
	bind *:19876
	option tcplog
	default_backend nodeos-p2p-nodes

# peering backend
backend nodeos-p2p-nodes
	balance		leastconn
	option          httpchk GET /v1/chain/get_info HTTP/1.1
	http-check      send hdr Host eosrio.io
	default-server	maxconn 64
	# specify peering servers with http ports used for health checking (they must have the chain_api_plugin enabled)
	server		peer1		127.0.0.1:29876 check port 28888
	server		peer2		127.0.0.1:39876 check port 38888