I have set the load balancer of LDAP using HAProxy.The challenge is I want to integrate a shell script I have written for a health check to haproxy.cfg.
I have tried many options available in blogs but not working. below is my haproxy.cfg file please help me.
# LDAP and LDAP/STARTTLS
frontend ldap_service_front
mode tcp
log global
bind *:389
description LDAP Service
option tcplog
option logasap
option socket-stats
option tcpka
timeout client 5s
default_backend ldap_service_back
backend ldap_service_back
option external-check
external-check path "/usr/bin:/bin"
external-check command "/bin/ldapHealthCheck.sh"
server ldap-1 x.x.x:389 check fall 1 rise 1 inter 2s
server ldap-2 x.x.x:389 check fall 1 rise 1 inter 2s
mode tcp
balance leastconn
timeout server 30s
timeout connect 30s
timeout queue 30s
option tcpka
option tcp-check
tcp-check connect port 389
Related
If I send SSL traffic to the backend server, I can see the client/source IP in the application logs.
ssl://host_name:8883
Problem: If I place haproxy before the backend server, I get haproxy IP as the source IP. SSL termination happens at the backend server.
haproxy.cfg:
defaults
maxconn 64000
option http-server-close
option httplog
option forwardfor
option contstats
timeout connect 5000ms
timeout client 30000ms
timeout server 30000ms
timeout tunnel 3600000ms
timeout http-keep-alive 1000ms
timeout http-request 30000ms
timeout queue 30000ms
errorfile 504 /var/504.http
frontend tcp-frontend-mqtt-tls
mode tcp
bind :8883 accept-proxy
log global
log-format %ci\ %fi:%fp\ [%t]\ %ft\ %b/%s\ %Tw/%Tc/%Tt\ %B\ %ac/%fc/%bc/%sc/%rc\ %sq/%bq
tcp-request connection reject if { src -f /var/ip_blist.lst }
default_backend tcp-backend-mqtt-tls
backend tcp-backend-mqtt-tls
mode tcp
log global
balance leastconn
source 0.0.0.0 usesrc clientip
server mqtt-node-0 hostname:61008 resolvers my-dns check inter 1000
I've tried adding send-proxyv-v2 and send-proxy
server mqtt-node-0 hostname:61008 resolvers my-dns check inter 1000 send-proxy-v2
server mqtt-node-0 hostname:61008 resolvers my-dns check inter 1000 send-proxy
but that doesn't help as the SSL termination happens on the backend. am I missing something?
send-proxy is a good way to do it but your backend server/application needs to be able to parse the PROXY protocol to receive the IP information.
I have balancing host
192.168.1.12
receive input HTTP/HTTPS traffic
and balancing on backends
10.0.1.12
10.0.1.13
Use
HA-Proxy version 1.8.4-1deb90d 2018/02/08
config
global
log 127.0.0.1 local2
chroot /var/opt/rh/rh-haproxy18/lib/haproxy
pidfile /var/run/rh-haproxy18-haproxy.pid
maxconn 20000
daemon
# turn on stats unix socket
stats socket /var/opt/rh/rh-haproxy18/lib/haproxy/stats
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 15s
timeout server 15s
timeout http-keep-alive 5s
timeout check 3s
maxconn 20001
frontend http_frontend
bind *:80
default_backend http_backend
backend http_backend
mode http
server server1 10.0.1.12:8081 check
server server1 10.0.1.13:8081 check
Start service OK
Check curl
# curl -iv 10.0.1.12:8081
# curl -iv 10.0.1.13:8081
Return OK
Why
curl http://localhost
return 503 Service Unavailable
No server is available to handle this request.
?
here is my haproxy.cfg file hope this will help you to resolve your issue.
# Nur Load Balancer #
frontend tomcat-service
bind *:8081
default_backend tomcat-server
mode http
backend tomcat-server
balance roundrobin
server mfsys-cm-01 192.168.10.31:8080 check
server mfsys-cm-02 192.168.10.30:8080 check
listen stats
bind *:8082
stats enable
stats hide-version
stats show-node
stats uri /stats
stats auth admin:mypassword
stats refresh 5s
i got same error when i access stats, and solution was simple i was not giving proper url as it should be http://192.168.10.1:8082/stats
I am fairly new to haproxy setup. I was able to successfully setup to route frontend requests to specific port on backend. But now I have got a request to route requests to same server but different ports. The backend port to where the request needs to be routed is same as the incoming port. I tried below config among many options but nothing seems to work
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
defaults
mode http
log global
option httplog
option dontlognull
timeout connect 10s
timeout client 1m
timeout server 1m
frontend haproxynode_https
bind 0.0.0.0:6443
bind 0.0.0.0:10111
bind 0.0.0.0:10121
bind 0.0.0.0:10131
bind 0.0.0.0:10141
bind 0.0.0.0:10181
bind 0.0.0.0:10191
bind 0.0.0.0:10011
bind 0.0.0.0:10021
bind 0.0.0.0:10041
bind 0.0.0.0:10051
bind 0.0.0.0:10061
bind 0.0.0.0:10071
bind 0.0.0.0:10091
bind 0.0.0.0:10241
mode tcp
option tcplog
timeout client 1h
default_backend backendnodes_https
backend backendnodes_https
mode tcp
timeout server 1h
option tcplog
option tcp-check
balance roundrobin
default-server inter 10s downinter 5s rise 2 fall 2 slowstart 60s maxconn 250 maxqueue 256 weight 100
server master XX.XXX.XX.XX weight 1 port 80 maxconn 512 check
server master-1 XX.XXX.XX.XXX weight 1 port 80 maxconn 512 check
server master-2 XX.XXX.XX.XX weight 1 port 80 maxconn 512 check
Any pointers is highly appreciated
run first
haproxy -f /etc/haproxy/haproxy.cfg -c
Is all ok with the conf file ?
add at the end :
listen stats
bind :20000
mode http
stats enable
stats uri /stats
stats hide-version
stats refresh 60
stats realm Haproxy-Statistics
stats auth admin:password
stats admin if TRUE
Check the stats page : connect with a browser to
http://ip:20000/stats
send more info please
new to linux world.
I have setup two apache webserver , one haproxy and one testpc.
I am able to curl web server with index.html contents on port 80.
but when i try to curl haproxy on any port or port 80 i am getting curl:
(7) Failed connect to 35.229.60.183:80; Connection refused
firewall is turned off on all the servers, restarted the haproxy.
haproxy config file :
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 10s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 100s
maxconn 3000
frontend myserver
bind *:80
default_backend mybackendserver
mybackendserver
balance roundrobin
mode http
server webserver 35.185.18.206:80 check
server webserver1 35.231.241.247:80 check
when I try to curl them in my test machine i am getting curl:
(7) Failed connect to 35.229.60.183:80; Connection refused
35.229.60.183 is the ip of my haproxy server.
If I recall correctly, you should enable the port :80 or whatever you use, directly from the Google Cloud dashboard.
Check this out.
I am looking for a haproxy (HAProxy version 1.5.18) configuration which will allow websocket loadbalancing as well as RabbitMQ load balancing. I have tried many options but none seem to work, below is my haproxy config file:
global
log 127.0.0.1 local2
chroot /var/lib/haproxy
pidfile /var/run/haproxy.pid
maxconn 4000
user haproxy
group haproxy
daemon
stats socket /var/lib/haproxy/stats
defaults
mode http
log global
option httplog
option dontlognull
option http-server-close
option forwardfor except 127.0.0.0/8
option redispatch
retries 3
timeout http-request 15s
timeout queue 1m
timeout connect 10s
timeout client 1m
timeout server 1m
timeout http-keep-alive 10s
timeout check 10s
maxconn 3000
timeout tunnel 3600s
frontend http_web *:80
mode http
default_backend rgw
backend rgw
balance roundrobin
server rgw1 173.36.22.49:8080 maxconn 10000 weight 10 cookie rgw1 check
server rgw2 10.42.139.69:8080 maxconn 10000 weight 10 cookie rgw2 check
listen stats :9000
mode http
stats enable
stats realm Haproxy\ Statistics
stats uri /haproxy_stats # Stats URI
stats auth websocketadmin:websocketadmin
listen ampq
bind *:61613
mode tcp
option clitcpka
server rabbit1 10.42.6.112:61613 check inter 1s rise 3 fall 1
server rabbit2 10.42.6.113:61613 check inter 1s rise 3 fall 1
server rabbit3 10.42.6.114:61613 check inter 1s rise 3 fall 1
server rabbit4 10.42.6.115:61613 check inter 1s rise 3 fall 1
Haproxy doesn't give any error, it prints the below message, but it doesn't work, i cannot connect to websocket or connect to Rabbitmq. But as soon as i remove "listen ampq", everything starts working fine.
Sep 8 21:00:40 localhost haproxy[3184]: Proxy http_web started.
Sep 8 21:00:40 localhost haproxy[3184]: Proxy rgw started.
Sep 8 21:00:40 localhost haproxy[3184]: Proxy stats started.
The problem was the port 61613, which was already taken by another process. So i had to change to a new port and add it in the firewall rules and it is working now.