technical blogs Archives - Page 12 of 22

Deploying Azure Policy using Terraform Module

While working on Azure, you might come across a requirement that says the resources being deployed should be in accordance with the organization’s policies. Suppose you might want to grant a particular or a set of permissions on the resource group or on the management group so that the owner of it should be restricted like denying deploying of resources by enforcing resource tagging, region enforcement, allowing approved Virtual machines (VM) images, and many more.

In this blog, we will try to resolve these issues by applying Azure policies.

First, let’s get familiar with the azure policy.

The azure policy is a service that has been designed to help you enforce different rules and to act based on the rule’s effect on your Azure resources. You can use it to create, assign and manage policies. Azure policy evaluates your resources for non-compliance with assigned policies and performs the assigned effect.

Trigger Jenkins Job using AWS Lambda triggered by S3 Event

The problem that we faced:

There was a cron scheduled in our environment at a particular time which used to run at 8AM. This cron read data from the s3 bucket and used to succeed but failed when there were no objects present.

Problem this Integration solves:

Eliminates the need of keeping a scheduler in the system. Lambda will work as a Scheduler.
No manual intervention will be required in case the file from one service is delayed by a minute or an hour due to any reason.
Data exchange and processing between teams become more efficient and less error-prone.
Eliminates the need of checking the presence of files on S3. It all gets automated.

Continue reading “Trigger Jenkins Job using AWS Lambda triggered by S3 Event”

Deploying Terraform IAC Using Azure DevOps Runtime Parameters

Introduction

While deploying your same terraform code manually multiple times you must have got through the thoughts:

If we can automate the whole deployment process and replace the whole tedious process with few clicks.
If we can dynamically change the values of terraform.tfvars.
If we can restrict the regions of deployments.
If we can limit our VM types to maintain better cost optimization.

In this article, we will touch upon these problems and try to resolve them in a way that the same concepts can also be applied to similar requirements. Continue reading “Deploying Terraform IAC Using Azure DevOps Runtime Parameters”

Pod Priority, Priority Class, and Preemption

While deploying the deployment manifest, we found that some of the critical pods are not getting scheduled whereas others are getting scheduled easily. Now, I wanted to make sure that the critical pod gets scheduled first over other pods. I started exploring pod scheduling and then came across one of the native solutions for Pod Scheduling using Pod Priority & Priority Class. So in this blog, we’ll talk about Priority Class & Pod Priority and how we can use them for pod scheduling.

Pod Priority

It determines the importance of a pod over another pod. It is most helpful when we need to schedule the critical pods, which are unable to schedule due to resource capacity issues.

Priority Class

It is a non-namespace object. It is used to define the priority. Priority Class objects can have any 32-bit integer value smaller than or equal to 1 billion. The higher the value, the higher will be the priority.

Pod Preemption

It allows the higher-priority pods to evict the lower-priority pods so that higher-priority pods can be scheduled, which is by default enabled when we create PriorityClass.

Active-Active Infrastructure using Terraform and Jenkins on Microsoft Azure

In this blog, we will create an active-active infrastructure on Microsoft Azure using Terraform and Jenkins.

Prime Reasons to have an active-active set-up of your infrastructure

Disaster Recovery:

Disaster recovery (DR) is an organization’s method of regaining access and functionality to its IT infrastructure after events like a natural disaster, cyber attack, or even business disruptions just like during the COVID-19 pandemic.

Ensure business resilience
No matter what happens, a good DR plan can ensure that the business can return to full operations rapidly, without losing data or transactions.
Maintain competitiveness
Loyalty is rare and when a business goes offline, customers turn to competitors to get the goods or services they require. A DR plan prevents this.
Avoid data loss
The longer a business’s systems are down, the greater the risk that data will be lost. A robust DR plan minimizes this risk.
Maintain reputation
A business that has trouble resuming operations after an outage can suffer brand damage. For that reason, a solid DR plan is critical.