Category Archives: Tech.

Simple Howto: AWS IAM Instance Profiles

For those of you looking to set up applications to run on EC2 instances without having to put credentials on the machines, there is an option. AWS has a great feature for exactly this purpose, and it’s called IAM Instance … Continue reading

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TravisCI: Export From Bash Scripts

Let’s say your TravisCI file is cluttering up due to having too many shell / bash commands in the “.travis.yml” file and you’ve decided to move the commands out to a separate shell script. Now, you’ll want to get export/return … Continue reading

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Learn Scrum in Less Than An Hour

Well, if you’re part of an organization that does not do Agile (Scrum or not), OR an organization that’s in a transformation towards it, OR in an organization that already does Agile but you’re new and do not know what … Continue reading

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Public IP Address of Private AWS Instances?

Do you want to find out the public IP address of your private instances (those in a private VPC subnet) but don’t know how? An easy way to do this would be to just do a “whatsmyip” equivalent on the … Continue reading

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TravisCI and Ansible on AWS

If you’re trying to use Travis CI and Ansible playbooks to spin up and configure instances on AWS, you’ll want to do things at some point: Configure instances on private subnets with Ansible via bastion host Secure the said Bastion … Continue reading

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Defrost Timer – A Look Inside

If the defrost timer on your fridge is a mechanical timer (works like a wall clock, and ticks annoyingly), then sometime or the other you’ll have this thing fail on you. Ours did, but I wanted to be sure it … Continue reading

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Find out last day of month using “cal” on Unix

I was writing a script the other day that required having to find out the last day of a month in a future month again generated by the script. I searched online for solutions but most of them were based … Continue reading

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