@@ -12,12 +12,6 @@ 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
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@@ -51,37 +45,37 @@ Create a new Load Balancer (Openstack CLI)
Create a new Load Balancer (Openstack Dashboard)
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1. Select **Load Balancers** from the menu and select **+ Create Load Balancer**.
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).
2. Name the new **load balancer** and select the subnet (must be the same subnet of the VMs "default" or user defined).
.. image:: lb2.png
:width: 600
3. Create a listener and select the protocol/port the load balancer listens to.
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.
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.
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.
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.
7. Wait until the **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
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@@ -94,6 +88,13 @@ Create a new Load Balancer (Openstack Dashboard)
**Note**: now it is possibile to remove the floating ips from the two VMs.
**Note**: If the service should not be visible from the Internet (0.0.0.0/0) create a security group that enables ingress traffic from your custom
network and associate it to the VMs otherwise the load balancer will not be able to forward the requests to it's members. The CIDR of the security group rule
is the network IP (if you use the "default" network it's 192.168.0.0/16).
