May 27, 2016

Sync S3 bucket to multiple S3 buckets in different region

Cross-Region Replication for Amazon S3 was introduced last year which enables replicating objects from a S3 bucket to a different S3 bucket located in different region (it can be same/different AWS account). It’s one of the most sought after feature for long time but it doesn’t solve some of the scenarios as defined below. Synchronizing to a bucket in same region. Synchronizing to multiple destination buckets. Object ACLs needs to be set at the source bucket hence multiple different ACLs needs to be set when copying across different accounts. Read more

May 15, 2016

Running IIS in Windows Docker Container in Amazon EC2

Windows Server 2016 Technical Preview 5 was released on 27th April 2016 & it’s well known by now that it supports docker with it’s windows server containers. Microsoft also started uploading windows server core with various application as docker images to docker hub. I was wondering whether it’s possible to run Windows 2016 TP5 on an EC2 instance and launch a windows container inside the EC2 instance. EC2 officially supports only upto Windows 2012 R2 and I couldn’t find any 2016 AMI’s in Ireland region. Read more

May 14, 2016

Using AWS IoT button – Simple Example

Amazon did a limited release of the programmable Dash button and unsurprisingly it got sold out within a day. It’s stated in amazon.com that “We don’t know when or if this item will be back in stock.“, hence you might need to wait to get one. I take this opportunity to write a post about how I used the AWS IoT button that I received in AWS re:Invent 2015 to show case AWS IoT to the team. Read more

May 5, 2016

Automated Blue/Green deployment using Lambda and CloudFormation

Blue/Green deployment is a well-known method to deploy an application without any downtime. Performing DNS switch is one of the very common techniques to achieve this. Using DNS switch has a minor issue with DNS caching which might take some time for DNS change to be propagated. Apart from DNS switch, AWS gives us two different options to switch the stacks. One is to have single ELB and swap it across auto-scaling group and another is switching the launch configuration of the auto-scaling group. Read more

March 6, 2016

Cracking AWS Solution Architect Professional Certification

If you had noticed, there has been a gap of few weeks since my last post. I went off the radar to prepare for AWS Certified Solution Architect Professional exam. Lots of learning and completed it successfully. I can’t provide any details on the questions since I have signed a NDA. But I shall provide some suggestions based on my experience. Read through the blue print and understand the weight-age for different sections. Read more

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