Highly available Horizon API

[root@controller ~]# yum install openstack-dashboard -y

[root@controller1 ~]# cp /etc/openstack-dashboard/local_settings{,.bak}

[root@controller1 ~]# DASHBOARD_LOCAL_SETTINGS=/etc/openstack-dashboard/local_settings

[root@controller1 ~]# sed -i 's#_member_#user#g' $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# sed -i 's#OPENSTACK_HOST = "127.0.0.1"#OPENSTACK_HOST = "controller"#' $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# 

[root@controller1 ~]# sed -i "/ALLOWED_HOSTS/cALLOWED_HOSTS = ['*', ]" $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# 

[root@controller1 ~]# sed -in '153,158s/#//' $DASHBOARD_LOCAL_SETTINGS 

[root@controller1 ~]# sed -in '160,164s/.*/#&/' $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# sed -i 's#UTC#Asia/Shanghai#g' $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# sed -i 's#%s:5000/v2.0#%s:5000/v3#' $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# sed -i '/ULTIDOMAIN_SUPPORT/cOPENSTACK_KEYSTONE_MULTIDOMAIN_SUPPORT = True' $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# sed -i "[email protected]^#[email protected][email protected]" $DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# 

[root@controller1 ~]# echo '

> #set

> OPENSTACK_API_VERSIONS = {

>     "identity": 3,

>     "image": 2,

>     "volume": 2,

> }

> #'>>$DASHBOARD_LOCAL_SETTINGS

[root@controller1 ~]# rsync -avzP  -e 'ssh -p 22'  /etc/openstack-dashboard/local_settings  controller2:/etc/openstack-dashboard/

[root@controller1 ~]# rsync -avzP  -e 'ssh -p 22'  /etc/openstack-dashboard/local_settings  controller3:/etc/openstack-dashboard/

[root@controller1 ~]# systemctl restart httpd

[root@controller1 ~]# ssh controller2 "systemctl restart httpd" 

[root@controller1 ~]# ssh controller3 "systemctl restart httpd"

sed -i 's#^Listen 80#Listen 8080#'  /etc/httpd/conf/httpd.conf

systemctl restart httpd.service

systemctl daemon-reload

echo '

listen dashboard_cluster  

  bind controller:80

  balance  roundrobin  

  option  tcpka  

  option  httpchk  

  option  tcplog  

  server controller1 controller1:8080 check port 8080 inter 2000 rise 2 fall 5

  server controller2 controller2:8080 check port 8080 inter 2000 rise 2 fall 5

  server controller3 controller3:8080 check port 8080 inter 2000 rise 2 fall 5

'>>/etc/haproxy/haproxy.cfg

systemctl restart haproxy.service