Month: January 2023

AWS Disaster Recovery Service Created a supported os (ubuntu 20.04) and retrying DR After successful installation replicated instance is shown in source servers Disaster Recovery Actions Recovery Drill: Testing if the DR is working as intended Recovery: Performing DR in the actual case of failures FailBack: The failure is resolved and we are resetting the… Continue reading AWS Classroomnotes 11/Jan/2023

Ansible lookups Refer Here for official lookup docs. Lookups work with the help of lookup plugins Refer Here To understand lookups better, lets install the Ansible traditional way and look into ansible configuration files execute ansible –version The hosts file in /etc/ansible acts as default inventory Ansible.cfg in /etc/ansible is the configuration file of ansible… Continue reading DevOps Classroomnotes 11/Jan/2023

Azure Backup Center Using Azure Backup center we can enable backups for VMs Databases Storage For the specific services refer below screenshot For Azure Backup Center we need a recovery services vault Lets create a recovery services vault Ensure you have a vm running Select the vault created in the backup center Triggering initial backup… Continue reading Azure Classroomnotes 11/Jan/2023

Backup VMs and Databases using Aws Backup Service Labsetup: Ensure you have an ec2 instance with apache server on any linux based ec2 RDS database with some data in it. Now navigate to aws backup service AWS Backup To store the Backups we need a vault Create Backup plan We will keep the ec2 and… Continue reading AWS Classroomnotes 10/Jan/2023

Ansible Templates Ansible uses jinja2 for templating Refer Here In ansible to use the variables we use expression {{ variable_name }} which is derived from templating language jinja2 jinja2 also has wide filters We can use jinja2 in files so that the content can be dynamic we have created a sample template with simple text.… Continue reading DevOps Classroomnotes 10/Jan/2023

Azure Operations Common Administrative Activities across Azure Backups Disaster Recoveries Patching Monitoring Troubleshooting Explore Operations with Virtual Machines Create a Linux VM and Navigate to Operations blade The sections are Bastion Auto shutdown Backup Disaster Recovery Updates Inventory Change Tracking Auto Management Policies Run Command Now Navigate to Monitoring Blade Insights Alerts Metrics Logs Diagnostic… Continue reading Azure Classroomnotes 10/Jan/2023

AWS Operations As an AWS admin we are expected to do some operations such as Backups Disaster Recoveries OS patching Backups in AWS In AWS, the generic term used for backup is Snapshot Generally the first snapshot is full backup and snapshots from there on are incremental in nature When we try to delete the… Continue reading AWS Classroomnotes 09/Jan/2023

AWS Operations As an AWS admin we are expected to do some operations such as Backups Disaster Recoveries OS patching Backups in AWS In AWS, the generic term used for backup is Snapshot Generally the first snapshot is full backup and snapshots from there on are incremental in nature When we try to delete the… Continue reading AWS Classroomnotes 09/Jan/2023

Ansible Contd… Ansible loops and variables in inventory we are supposed to install the following softwares into a node git tree nano net-tools Adding lists to ini inventory formats and executing playbook inventory [local] localhost packages='["git", "nano", "tree", "net-tools"]’ playbook — – name: install utilities hosts: all tasks: – name: install utilities ansible.builtin.package: name: "{{… Continue reading DevOps Classroomnotes 09/Jan/2023

Migrations contd.. Storage Migration: VDI (Virtual Desktop Interface): Citrix VDI is popular option in VDI space and Microsoft also has product lines on VDIs Refer Here for the microsoft VDI Modernization Compute Decision Tree Data Decision tree Refer Here for techonology choices in Azure.