aggiungi guida creazione Load Balancer da Dashboard

bff669bf · Mihail Avram · 60159daa · bff669bf · bff669bf · bff669bf
Commit bff669bf authored 3 weeks ago by Mihail Avram
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,5 @@
 *.swp
 *.swo
 *~
+build
+venv
--- a/web/support/kb/openstack/lb0.png
+++ b/web/support/kb/openstack/lb0.png
--- a/web/support/kb/openstack/lb1.png
+++ b/web/support/kb/openstack/lb1.png
--- a/web/support/kb/openstack/lb2.png
+++ b/web/support/kb/openstack/lb2.png
--- a/web/support/kb/openstack/lb3.png
+++ b/web/support/kb/openstack/lb3.png
--- a/web/support/kb/openstack/lb4.png
+++ b/web/support/kb/openstack/lb4.png
--- a/web/support/kb/openstack/lb5.png
+++ b/web/support/kb/openstack/lb5.png
--- a/web/support/kb/openstack/lb6.png
+++ b/web/support/kb/openstack/lb6.png
--- a/web/support/kb/openstack/lb7.png
+++ b/web/support/kb/openstack/lb7.png
--- a/web/support/kb/openstack/lb8.png
+++ b/web/support/kb/openstack/lb8.png
--- a/web/support/kb/openstack/lbaas_services_tutorial.rst
+++ b/web/support/kb/openstack/lbaas_services_tutorial.rst
-Create an Openstack LB
+Create an Openstack Load Balancer
 ======================
-This guide shows how to create and use an Openstack LB. We will create two VMs, a LB that will balance the load between these two VMs, and will test the LB with curl.
+This guide shows how to create and use an Openstack Load Balancer. We will create two VMs, a Load Balancer that will balance the load between these two VMs, and will test the Load Balancer with curl.
 Create the VMs
 --------------
@@ -12,6 +12,13 @@ Create a new security group that enables network traffic on port 80 and associat
 Create and associate a floating IP to each VM.
+**Note**: If the service is not visible from the Internet (0.0.0.0/0) create a security group that enables ingress traffic from the private
+network of the VM's otherwise the Load Balancer will not be able to forward the requests to the worker VMs. In this case the CIDR of the security group rule
+is the network IP.
+.. image:: lb0.png
+   :width: 600
 Run a simple web server
 -----------------------
@@ -28,7 +35,7 @@ On test-vm-2:
 2. ``vim index.html`` -> <html>This is SERVER 2</html>
 3. ``sudo python3 -m http.server 80 &> /dev/null &``
-Create a new LB
+Create a new Load Balancer (Openstack CLI)
 ---------------
 1. ``openstack loadbalancer create --name test-lb --vip-subnet-id <subnet-id>``
@@ -38,12 +45,58 @@ Create a new LB
 5. ``openstack loadbalancer member create --subnet-id <subnet-id> --address <test-vm-2-private-ip> --protocol-port 80 test-pool``
 6. Get the loadbalancer vip port (vip_port_id) -> ``openstack loadbalancer show test-lb``
 7. Create a new floating ip through the Openstack Dashboard or CLI
-8. Associate the previous floating ip to the LB vip port-> ``openstack floating ip set --port <vip-port-id> <floating-ip>``
+8. Associate the previous floating ip to the Load Balancer vip port-> ``openstack floating ip set --port <vip-port-id> <floating-ip>``
+Create a new Load Balancer (Openstack Dashboard)
+---------------
+1. Select **Load Balancers** from the menu and select **+ Create Load Balancer**.
+    .. image:: lb1.png
+       :width: 600
+2. Name the new load balancer and select the subnet (must be the same subnet of the VM's).
+    .. image:: lb2.png
+       :width: 600
+3. Create a listener and select the protocol/port the load balancer listens to.
+    .. image:: lb3.png
+       :width: 600
+4. Create a worker pool and select a load balancer algorithm. The choosen algorithm determines how the workload is distributed among members when new requests arrive.
+    .. image:: lb4.png
+       :width: 600
+5. Add members to the new pool, and for each member select the interface and the port of the service running on that host.
+    .. image:: lb5.png
+       :width: 600
+6. Create a monitor and select the type of service to monitor. Click on **Create Load Balancer** to finish.
+    .. image:: lb6.png
+       :width: 600
+7. Wait until load balancer *Operating Status* becomes Online. If a member is unreachable to the load balancer *Operating Status* turns to *Degraded*, in that case the requests are routed to the remaining members.
+    .. image:: lb7.png
+       :width: 600
+8. Assign a *Floating IP* to the new load balancer.
+    .. image:: lb8.png
+       :width: 600
 **Note**: now it is possibile to remove the floating ips from the two VMs.
-Test the LB
+Test the Load Balancer
 -----------
-``curl <LB-floating-ip>``
+``curl <Load-Balancer-floating-ip>``