C H A P T E R
9
Installing Cisco Elastic Services Controller on a
Kernel-based Virtual Machine
This chapter describes how to install Cisco Elastic Services Controller on a Kernel-based Virtual Machine and includes the following sections:
•
Installing Cisco Elastic Services Controller in a Kernel-based Virtual Machine, page 49
•
Next Steps: Cisco Elastic Services Controller Kernel-based Virtual Machine, page 51
Installing Cisco Elastic Services Controller in a Kernel-based Virtual Machine
Cisco Elastic Services Controller can be installed in a Kernel-based Virtual Machine. You can install Cisco
Elastic services controller in a Kernel-based Virtual Machine using libvirt.
Preparing to Install Cisco Elastic Services Controller on a Kernel-based Virtual Machine
If you plan to run Cisco Elastic Services Controller on a kernel-based virtual machine, make sure the following are setup:
Notes
Python 2.7 or 3.x
Installed by default on Linux python-setuptools Installed by default on Linux
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Installing Cisco Elastic Services Controller in a Kernel-based Virtual Machine pip
OpenStack clients genisoimage libvirt and virtinst
Notes
On RHEL :
# easy_install pip
Since the installation using pip compiles source files, the gcc and python development packages are also required on RHEL. To install these packages on
RHEL:
# yum install gcc python-devel
On Ubuntu : Installed by default. Since the installation using pip compiles source files, the gcc and python development packages are also required on Ubuntu. To install these packages on Ubuntu:
# apt-get install python-dev
# pip install python-keystoneclient
# pip install python-cinderclient
# pip install python-novaclient
# pip install python-neutronclient
On RHEL :
# yum install genisoimage
On Ubuntu :
# apt-get install genisoimage
On RHEL 6.x
:
# yum install libvirt-python python-virtinst
On RHEL 7.x
:
# yum install libvirt-python virt-install
On Ubuntu :
# apt-get install libvirt-dev
# pip install libvirt-python
Note libvirt will create the default network automatically.
Installing Elastic Services Controller on a Kernel-Based Virtual Machine
To install standalone Elastic Services Controller (ESC) on a kernel-based virtual machine, do the following:
Step 1 Load the variables from the openerc file that contains OpenStack credentials: cat ./openrc.sh
export OS_TENANT_NAME='< OS tenant username >' export OS_USERNAME='< OS username >' export OS_PASSWORD='< OS password >' export OS_AUTH_URL='http://<Openstack Host>:5000/v2.0/' source ./openrc.sh
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Next Steps: Cisco Elastic Services Controller Kernel-based Virtual Machine
Step 2
Step 3
Step 4
Step 5
Step 6
Copy the ESC qcow2 image and the bootvm.py into the kernel-based VM.
Boot ESC on a kernel-based VM on the default network that was created when libvirt was installed, use one of the following command:
./bootvm.py --user_pass <username>:<password> --user_confd_pass <username>:<password> --libvirt
--image <image_name> esc-vm --net <default network>
Boot ESC on a kernel-based VM on the default network with static IP, using the following command:
./bootvm.py --user_pass <username>:<password> --user_confd_pass <username>:<password> --libvirt
--image <image_name> esc-vm --net <network> --ipaddr <ip_address>
Get a list of used IP addresses in your network. Use IP addresses that are not in the list for both HA bootvm.py command and for kad_vip. Determine the first 3 octets of your network (i.e. 192.168.122) and pass it in the below command : arp -an | grep 192.168.122
To install ESC on a kernel-based VM in high availability, use the following command twice for both the HA nodes:
Note For the second bootvm.py command, use the other HA instance name.
./bootvm.py --user_pass <username>:<password> --user_confd_pass <username>:<password> --libvirt
--image <image_name> --ha_mode drbd --gateway_ip <default_gateway_ip_address> --ipaddr <ip_address>
--ha_node_list <ha peer ip addresses separated by comma> --kad_vip <vip address> esc-ha-1 --net
<network>
Next Steps: Cisco Elastic Services Controller Kernel-based Virtual Machine
Logging in to Cisco Elastic Services Controller Portal
To log in to the ESC Portal, see the
Logging in to the ESC Portal, on page 74
Verifying ESC installation for a Kernel-based Virtual Machine (KVM)
After deploying ESC on a Kernel-based virtual machine, use the following procedure to verify the deployment.
Step 1
Step 2
Step 3
Check that the ESC VMs have booted using the following command:
$ virsh list
Get the IP address of the ESC VM, using the following command:
$ arp -an | grep <ip_address>
Connect to ESC using SSH and verify the processes are running:
$ ssh USERNAME@ESC_IP
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Next Steps: Cisco Elastic Services Controller Kernel-based Virtual Machine
Troubleshooting Tips
When SSH access is not available, due to network conditions or ESC startup failures, you can connect to ESC through console(if enabled in ESC VM image) or VNC access. To access ESC VM through VNC, do the following:
1 Identify the vnc port.
virsh dumpxml 10 | fgrep vnc
2 Create a ssh tunnel to the local vnc port to allow connection from your remote VNC client.
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P A R T
IV
Installing Cisco Elastic Services Controller on
Amazon Web Services (AWS)
•
Installing Cisco Elastic Services Controller on Amazon Web Services, page 55
