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Persistence Of The AWS Lambda Environment Between Function Invocations
AWS Lambda functions are run inside of an Amazon Linux environment (presumably a container of some sort). Sequential calls to the same Lambda function could hit the same or different…
Before You Buy Amazon EC2 (New) Reserved Instances
understand the commitment you are making to pay for the entire 1-3 years Amazon just announced a change in the way that Reserved Instances are sold. Instead of selling the…
S3 Bucket Notification to SQS/SNS on Object Creation
A fantastic new and oft-requested AWS feature was released during AWS re:Invent, but has gotten lost in all the hype about AWS Lambda functions being triggered when objects are added…
AWS Lambda: Pay The Same Price For Faster Execution
multiply the speed of compute-intensive Lambda functions without (much) increase in cost Given: AWS Lambda duration charges are proportional to the requested memory. The CPU power, network, and disk are…
Exploring The AWS Lambda Runtime Environment
In the AWS Lambda Shell Hack article, I present a crude hack that lets me run shell commands in the AWS Lambda environment to explore what might be available to…
lambdash: AWS Lambda Shell Hack
I spent the weekend learning just enough JavaScript and nodejs to hack together a Lambda function that runs arbitrary shell commands in the AWS Lambda environment. This hack allows you…
AWS Lambda Walkthrough Command Line Companion
The AWS Lambda Walkthrough 2 uses AWS Lambda to automatically resize images added to one bucket, placing the resulting thumbnails in another bucket. The walkthrough documentation has a mix of…
When Are Your SSL Certificates Expiring on AWS?
If you uploaded SSL certificates to Amazon Web Services for ELB (Elastic Load Balancing) or CloudFront (CDN), then you will want to keep an eye on the expiration dates and…
Throw Away The Password To Your AWS Account
reduce the risk of losing control of your AWS account by not knowing the root account password As Amazon states, one of the best practices for using AWS is Don’t…
AWS Community Heroes Program
Amazon Web Services recently announced an AWS Community Heroes Program where they are starting to recognize publicly some of the many individuals around the world who contribute in so many…
EBS-SSD Boot AMIs For Ubuntu On Amazon EC2
With Amazon’s announcement that SSD is now available for EBS volumes, they have also declared this the recommended EBS volume type. The good folks at Canonical are now building Ubuntu…
EC2 create-image Does Not Fully "Stop" The Instance
The EC2 create-image API/command/console action is a convenient trigger to create an AMI from a running (or stopped) EBS boot instance. It takes a snapshot of the instance’s EBS volume(s)…
Finding the Region for an AWS Resource ID
use concurrent AWS command line requests to search the world for your instance, image, volume, snapshot, … Background Amazon EC2 and many other AWS services are divided up into various…
Changing The Default "ubuntu" Username On New EC2 Instances
configure your own ssh username in user-data The official Ubuntu AMIs create a default user with the username ubuntu which is used for the initial ssh access, i.e.: ssh ubuntu@<HOST>…
Default ssh Usernames For Connecting To EC2 Instances
Each AMI publisher on EC2 decides what user (or users) should have ssh access enabled by default and what ssh credentials should allow you to gain access as that user.…
New c3.* Instance Types on Amazon EC2 - Nice!
Worth switching. Amazon shared that the new c3.* instance types have been in high demand on EC2 since they were released. I finally had a minute to take a look…
Query EC2 Account Limits with AWS API
Here’s a useful tip mentioned in one of the sessions at AWS re:Invent this year. There is a little known API call that lets you query some of the EC2…
Using aws-cli --query Option To Simplify Output
My favorite session at AWS re:Invent was James Saryerwinnie’s clear, concise, and informative tour of the aws-cli (command line interface), which according to GitHub logs he is enhancing like crazy.…
Reset S3 Object Timestamp for Bucket Lifecycle Expiration
use aws-cli to extend expiration and restart the delete or archive countdown on objects in an S3 bucket Background S3 buckets allow you to specify lifecycle rules that tell AWS…
Installing aws-cli, the New AWS Command Line Tool
consistent control over more AWS services with aws-cli, a single, powerful command line tool from Amazon Readers of this tech blog know that I am a fan of the power…
Using An AWS CloudFormation Stack To Allow "-" Instead Of "+" In Gmail Email Addresses
Launch a CloudFormation template to set up a stack of AWS resources to fill a simple need: Supporting Gmail addresses with “-” instead of “+” separating the user name from…
New Options In ec2-expire-snapshots v0.11
The ec2-expire-snapshots program can be used to expire EBS snapshots in Amazon EC2 on a regular schedule that you define. It can be used as a companion to ec2-consistent-snapshot or…
Replacing a CloudFront Distribution to "Invalidate" All Objects
I was chatting with Kevin Boyd (aka Beryllium) on the ##aws Freenode IRC channel about the challenge of invalidating a large number of CloudFront objects (35,000) due to a problem…
Email Alerts for AWS Billing Alarms
using CloudWatch and SNS to send yourself email messages when AWS costs accrue past limits you define The Amazon documentation describes how to use the AWS console to monitor your…
Cost of Transitioning S3 Objects to Glacier
how I was surprised by a large AWS charge and how to calculate the break-even point Glacier Archival of S3 Objects Amazon recently introduced a fantastic new feature where S3…
Running Ubuntu on Amazon EC2 in Sydney, Australia
Amazon has announced a new AWS region in Sydney, Australia with the name ap-southeast-2. The official Ubuntu AMI lookup pages (1, 2) don’t seem to be showing the new location…
Save Money by Giving Away Unused Heavy Utilization Reserved Instances
You may be able to save on future EC2 expenses by selling an unused Reserved Instance for less than its true value or even $0.01, provided it is in the…
Installing AWS Command Line Tools from Amazon Downloads
This article describes how to install the old generation of AWS command line tools. For the most part, these have been replaced with the new AWS cli that is…
Convert Running EC2 Instance to EBS-Optimized Instance with Provisioned IOPS EBS Volumes
Amazon just announced two related features for getting super-fast, consistent performance with EBS volumes: (1) Provisioned IOPS EBS volumes, and (2) EBS-Optimized Instances. Starting new instances and EBS volumes with…
Which EC2 Availability Zone is Affected by an Outage?
Did you know that Amazon includes status messages about the health of availability zones in the output of the ec2-describe-availability-zones command, the associated API call, and the AWS console? Right…