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In this section:

Table of Contents

maxLevel	3

Info

icon	false

Procedure

Perform the following steps to upgrade the SBC SWE on Azure using IaC. The Azure CLI version used for this documentation is 2.24.

Create an Ubuntu 18.04 LTS instance in Azure.
Create Network Security Group rules to allow the instance to allow SSH access to SBC MGT IP on ports 22, 2024, 444, and 443. Refer to Create Network Security Group.
Info
title Note
If the NIC for the IaC instance was created in the same subnet as the SBC MGT, this step is not needed.
Run az login and sign in as a user with the role 'owner' for the subscription.
If not yet created, create a Service Principal that contains 'owner' permissions for the subscription. For example:
Code Block
az ad sp create-for-rbac -n rbbn-iac --role="owner" --scopes="/subscriptions/XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXa511"

Export the following values from the Service Principal:

Code Block
export ARM_SUBSCRIPTION_ID="<subscription_id>" export ARM_TENANT_ID="<tenant_id>" export ARM_CLIENT_ID="<client_id>" export ARM_CLIENT_SECRET="<client_secret>"

Info

title	Note

You can add this values to the file and source it before running the upgrade command.

Customer Method to Install Life Cycle Manager

The Ribbon Life Cycle Manager (LCM) provides SBC upgrades in Azure. Once the LCM Image is

Customer Method to Install Life Cycle Manager

The Ribbon Life Cycle Manager (LCM) provides SBC upgrades in Azure. Once the LCM Image is launched, files azure_access.yml and upgrade-revert.yml templates (needed for upgrade) are located in the user-specified path.

Example: /home/ubuntu-user/10.0xx/iac-270/management/SBC/upgrade.

Here 'xx' refers to the folder name.

Prerequisite

Determine a Ubuntu Image to use for the LCM using the procedure in Locate Locate Ubuntu Image ID for use Use in LCM deployments.
Retrieve the RBBN LCM scripts from the Ribbon Support Portal.Support Portal.
- The minimum supported version is iac_sustaining_22.05_b296.tar.gz

Steps

Launch a standard F4s instance instance with LCM Image.
Once successfully instantiated, log into the instance as ubuntu-user and switch to root:
Code Block
ssh -i lcm.pem ubuntu-user@<LCM instance IP address> sudo su -
Create a directory within /home/ubuntu-user/ using the command:
Code Block
mkdir /home/ubuntu-user/iac-270
Copy the latest LCM tarball "iac_sustaining_21.05_b270.tar.g" to IAC package from Salesforce to /home/ubuntu-user/iac-270.
Untar the tarball inside /home/ubuntu-user/iac-270 using the command:
Code Block
tar -xzvf iacxzvf iac_sustaining_21*.05_b270.tar.ggz
Change to the /home/ubuntu-user/iac-270 directory and view the README file for any updated instructions.

Install pythonpython2-pip package using method appropriate for OS - see examples:

Redhat: yum install -y python2-pip
Amzn2 AMIAmazon Ubuntu 2 Image (HVM), SSD Volume Type (x86_64): amazon-Ubuntulinux-extras install epel; yum install -y python2-pip
Centos: curl 'https://bootstrap.pypa.io/pip/2.7/get-pip.py' -o 'get-pip.py'; python get-pip.py
CentOS7 : yum install -y epel-release; yum install -y python2-pip
RHEL7: yum install -y python2-pip

Debian/Ubuntu: apt-get update; apt-get install python-pip

Warning
The Ribbon LCM package requires python2 and python2-pip to run. The examples above show the linux distributions version that support python2. In newer versions; the python2 package is not avaiable from the standard package repositories and instead will need to be installed from a different source.

Debian9/Ubuntu18: apt-get install python-pip

Install Python virtual environment
using command "pip install virtualenv".
Refer to: https://packaging.python.org/guides/installing-using-pip-and-virtualenv/ for additional info on pip virtualenv
Activate the python virtualenv with command "python -m virtualenv rafenv"
.
Code Block
pip2 install virtualenv
Create virtual environment and provide a name e.g. 'iacenv'.
Code Block
virtualenv -p /usr/bin/python2 iacenv
Activate virtual environment.
Code Block
source iacenv
Run the RAF activate script using command:
Code Block
sudo source /home/ubuntu-user/iac-270/rafenv/bin/activate
Complete
the LCM instance setup by running the command:
the LCM setup by installing the required packages and setup the environment/
Code Block
./setup.py --azure
Change directory to /home/ubuntu-user/iac-270/management/SBC/upgrade.
List the contents of the directory.
Ensure the following files are present:
1. upgrade.py
2. azure_access.yml
3. upgrade-revert.yml

Info
It is safe to shut down the LCM instance after the process finishes. If you decide to terminate/remove the LCM instance, you must make a backup of `/var/log/ribbon` which is required for future reversions and debugging.

Customer Methods for Upgrading and Reverting

Prerequisites

A snapshot of the target SBC image in the same Resource Group as the SBC setup being upgraded
See the following link to create a snapshot: Access and Share SBC Image in Azure.
Copy the latest LCM tarball IAC package from Salesforce and upload to LCM instance and extract
Customer Method to Install Life Cycle Manager
The new SBC and LCM Image must be uploaded and available in Azure
.
You must have an Azure Instance (Standard F4s) with installed Life Cycle Manager (LCM) Image. (The default `azure_access.yml`, `upgrade-revert.yml,` will be present in the `/home/ubuntu-user/iac-270/management/SBC/upgrade/` directory directory of the LCM instance.)

Info
Make sure that the SBC instances' security group setting allow the LCM instances to reach the SBC instances' mgmt IP on ports 22, 443 and 444 for ssh, sftp and http services.
See the following link to create a Security Group.
The LCM instance must have enough privileges to access Image, start/stop instances, make volume, attach, detach volume, show, start, stop, reboot and update instances.

Steps

Open a session to the Life Cycle Manager instance (
LCM) and switch to root.
LCM) and switch to root.
Code Block
ssh -i lcm.pem ubuntu-user@<LCM instance IP address> sudo su
Activate virtual environment.
Code Block
source iacenv
Enter the LCM virtual environment using command "source rafenv
/bin/activate
".

Change to /home/ubuntu-user/iac-270/management/SBC/upgrade and enter the workflow directory:

Code Block
ssh -i lcm.pem ubuntu-user@<LCM instance IP address> sudo su - source rafenv/bin/activate cd /home/ubuntu-user/iac-270/management/SBC/upgrade

Edit the file /home/ubuntu-user/iac-270/management/SBC/upgrade/azure_access.yml to provide Azure access details and HA pairing information. This information is used for mapping HA pairs. An example of a completed azure_access.yml file is shown below.

Info

title	Note

Use either the private managment IP address or the elastic IP address of instance1/instance2. Whichever you chose, ensure the IP address is reachable from the RAF/ LCM server to the SBC SWe.

Code Block

title	azure_access.yml

########################################################################
# This file has 2 blocks of information:
#   1) Azure general resources details
#   2) SBC Instance/group details
# Update this file as per the directions provided at respective fields
########################################################################
 
#############################################################################
# Azure authentication details should be supplied via azure CLI login:
#  - For service principal: az login --service-principal -u '<clientId>' -p '<clientSecret>' --tenant '<tenantId>'
#  - For Azure Active Directory: az login
##############################################################################
provider: "azure"
 
#
# Update subscription, resource group, location
#
subscription_id: "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXX8b96"
resource_group: "SBC-Core-RG"
location: "East US"
availability_zone: 0
 
#
# Update redundancy group details, in case of active/standby (1:1) configuration,
# provide details of both the instances. Order doesn't matter.
#
# Note: The script is limited to support just 1 redundancy group. Please dont add other redundancy group to this file else it will fail.
 
redundancy_group1:
      instance1:
            instance_id: "ap-sbc02-active"
            instance_ip: "20.75.155.181"
            login_details:
                  username: "admin"
                  password: "Sonus@123"
                  linuxadmin_key_file: "/home/rbbntest/Mahesh-Key.pem"
      instance2:
            instance_id: "ap-sbc02-standby"
            instance_ip: "20.75.155.206"
            login_details:
                  username: "admin"
                  password: "Sonus@123"
                  linuxadmin_key_file: "/home/rbbntest/Mahesh-Key.pem"

Upgrading

Edit the file /home/ubuntu-user/iac-270/management/SBC/upgrade/upgrade-revert.yml to to provide Image ID, Upgrade Tag and order of instance upgrade to the new SBC version. The following example provides the the Image version to use for the upgrade and specifies to upgrade instance instance ap-sbc02-active and then ap-sbc02-standby.

Code Block

title	upgrade-revert.yml

#######################################################################
# This file defines which instances to upgrade and in which order
# Update this file as per the directions provided at respective fields
########################################################################
 
#
# image_id - new image to use for upgrade. Use it as follows for different providers:
# aws       - AMI id with new SBC image
# gcp       - Name of the new SBC  image
# openstack - image id with new SBC image
# vmware    - Absolute path to vmdk with new SBC image
# rhv/kvm   - Absolute path to qcow2 image
# azure     - Snapshot name
#
image_id: "release-sbc-v10-00-00r000-05-19-21-22-06.snap"
#
# A tag to uniquely identify this upgrade. Logs and directory structure of logs are tagged
# with these so that future reference to these will be easier with appropriate tag.
# When the same system goes through multiple upgrades, this becomes a very handy way to jump to right set of logs.
#
# If multiple upgrades are done by using same upgrade-revert.yml file, use different upgrade_tag each time. Refer
# the corresponding upgrade_tag while doing the revert.
upgrade_tag: "IAC_TEST"
# Order of upgrade:
# All the instances listed under one group gets upgraded in parallel, so they get stopped, rebuilt and started in parallel.
#
# WARNING: If both active and standby of a HA pair are listed in the same upgrade group, that will impact service.
#
# On successful upgrade of instances in one group, instances in next group will be picked.
# Example Usecases:
#   1) While upgrading a 1:1(active/standby), list standby in first group and active in second group
#   2) If want to upgrade just standby, list that in first group and remove group 2
#   3) While upgrading a standalone, list instance in first group and remove group 2
#
tasks:
      # Each upgrade group should have a list of instance that will be upgraded in parallel
      upgradeGroup1:
            tag: "standby"
            instances:
                  - "ap-sbc02-standby"
      upgradeGroup2:
            tag: "active"
            instances:
                  - "ap-sbc02-active"

From the LCM session /home/ubuntu-user/iac-270/management/SBC/upgrade, run the upgrade command with azure_access.yml and upgrade-revert.yml as inputs:
Code Block
./upgrade.py -a azure_access.yml -u upgrade-revert.yml
Info
title Note
For an offline upgrade, use the command: ./upgrade.py -a azure_access.yml -u upgrade-revert.yml -o

Info
title Note
Upgrade progress and logs are shown on-screen and also logged in /home/ubuntu-user/9.2/iac-270/management/log/SBC/upgrade/azure/latest.

After successfully upgrading all nodes listed in upgrade-revert.yml, timestamped logs are moved to /home/ubuntu-user/9.2/iac-270/management/log/SBC/upgrade/azure/history.

Info

title	Note

Volumes with older software versions are left intact on Azure in case they are needed for future reversions. Information about these volumes is stored in the file with instance-id as part of its name. Do not delete these older volumes – you must have these volumes in order to perform a reversion.

Reverting

Edit the file /home/ubuntu-user/iac-270/management/SBC/upgrade/upgrade-revert.yml by designating the instances to revert. The following example provides a list of instances.

Infonote
The reversion process runs in parallel on all the instances, and could impact service. Make sure that all the instances of a redundancy group get are reverted to the same SBC version, failure . Failure to maintain the same version within a group will cause unknown behavior and could cause a service outage.

Code Block

title	upgrade-revert.yml

#######################################################################
# This file defines which instances to upgrade and in which order
# Update this file as per the directions provided at respective fields
########################################################################
  
#
# image_id - new image to use for upgrade. Use it as follows for different providers:
# aws       - AMI id with new SBC image
# gcp       - Name of the new SBC  image
# openstack - image id with new SBC image
# vmware    - Absolute path to vmdk with new SBC image
# rhv/kvm   - Absolute path to qcow2 image
# azure     - Snapshot name
#
image_id: "release-sbc-v10-00-00r000-05-19-21-22-06.snap"
#
# A tag to uniquely identify this upgrade. Logs and directory structure of logs are tagged
# with these so that future reference to these will be easier with appropriate tag.
# When the same system goes through multiple upgrades, this becomes a very handy way to jump to right set of logs.
#
# If multiple upgrades are done by using same upgrade-revert.yml file, use different upgrade_tag each time. Refer
# the corresponding upgrade_tag while doing the revert.
upgrade_tag: "IAC_TEST"
# Order of upgrade:
# All the instances listed under one group gets upgraded in parallel, so they get stopped, rebuilt and started in parallel.
#
# WARNING: If both active and standby of a HA pair are listed in the same upgrade group, that will impact service.
#
# On successful upgrade of instances in one group, instances in next group will be picked.
# Example Usecases:
#   1) While upgrading a 1:1(active/standby), list standby in first group and active in second group
#   2) If want to upgrade just standby, list that in first group and remove group 2
#   3) While upgrading a standalone, list instance in first group and remove group 2
#
tasks:
      # Each upgrade group should have a list of instance that will be upgraded in parallel
      upgradeGroup1:
            tag: "standby"
            instances:
                  - "ap-sbc02-standby"
      upgradeGroup2:
            tag: "active"
            instances:
                  - "ap-sbc02-active"

From the LCM session //home/ubuntu-user/iac-270/management/SBC/upgrade/, run the revert command with azure_access.yml and upgrade-revert.yml as inputs:
Code Block
./revert.py -a azure_access.yml -u upgrade-revert.yml
Info
title Note
Reversion progress and logs are shown on-screen and also logged in /home/ubuntu-user/9.2/iac-270/management/log/SBC/revert/azure/latest.

After successfully reverting all nodes listed in upgrade-revert.yml, the timestamped logs are moved to to /home/ubuntu-user/9.2/iac-270/management/log/SBC/revert/azure/history.

Info

title	Note

Volumes with older software versions are left intact on Azure in case they are needed for future reversions. Information about these volumes is stored in the file with instance-id as part of its name. Do not delete these older volumes – you must have these volumes in order to perform a reversion.

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Key

Procedure

Customer Method to Install Life Cycle Manager

Customer Method to Install Life Cycle Manager

Prerequisite

Customer Methods for Upgrading and Reverting

Prerequisites

Steps

Upgrading

Reverting