Tag: python
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Automated Lambda Testing
Look, I know there are a bunch of test frameworks that you could use for your Lambda functions. But what if you wanted something simple? I spent an afternoon putting together what I would want in a testing pipeline that returns a simple “Success/Fail” type response to me via Email. An architecture diagram for your…
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SES Monitoring
I love AWS. But one thing they don’t do is build complete tools. SES is one of them. I recently started getting emails about high usage for one of the identities that I have set up for SES. I would assume that there was a way to track usage within CloudWatch but for the life…
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Building a Discord Bot with Python and AWS
I’m a member of a lot of Discord servers. The one I participate in most is one with my brothers and our friends. In this server, we joke around a lot about people posting off-topic messages in the various text channels and we give them fake “warnings”. I decided to take this a step further…
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Deleting MANY Lambda Function Versions
I recently came across a challenge where I wanted to purge old Lambda Function versions. Some of the functions had over 65 versions! The code below will iterate through a text file with a Lambda function defined on each line. It will get a list of all the versions and delete any version that is…
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Moving AWS Cloudfront Logs to DynamoDB
I think its pretty obvious that I love DynamoDB. It has become one of my favorite AWS Services and I use it almost every day at work and am getting better at using it for my personal projects as well. I had a client approach me about getting logs from a Cloudfront Distribution. Cloudfront has…
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Updating AWS Managed Prefix Lists
I was working with a customer the other day trying to come up with a way to import a bunch of IP addresses into a white list on AWS. We came up with the approach of using Managed Prefix Lists in VPC. I wrote some Python in order to grab some code from an API…
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Automating Security Group Rule Removal
I’m using an Amazon Web Services Security Group as a way to allow traffic into an EC2 instance for the instance’s users. The users can give themselves access through a web interface that I wrote for them. Maybe I’ll cover that in a different post. I found recently that the Security Group was nearing its…
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EC2 Reservation Notification
I realized today that I haven’t updated my EC2 reservations recently. Wondering why I never did this I came to understand that there was no way that I was getting notified that the reservations were expiring. I spent the day putting together a script that would look through my reservations, assess the time of their…
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Security Group ID Finder
I have been working on deploying resources to a lot of AWS accounts lately where each account has the same network infrastructure. When deploying Lambdas, I had the common name of the security group but not the ID. I wrote this utility to get the security group ID for me quickly. This is a simple…
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A Dynamo Data Migration Tool
Have you ever wanted to migrate data from one Dynamo DB table to another? I haven’t seen an AWS tool to do this so I wrote one using Python. The process is pretty simple. First, we get all of our data from our source table. We store this in a list. Next, we iterate over…