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Tag: aws
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…
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…
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…
Adding a Standard Bucket Policy
It is good practice to deny traffic that is not HTTPS to your S3 bucket. For this reason, I wrote a script that I can use to apply a standard policy to each of my S3 buckets. While the script could be more robust to iterate through each bucket in my account, I decided to…
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…
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…
Querying and Editing a Single Dynamo Object
I have a workflow that creates a record inside of a DynamoDB table as part of a pipeline within AWS. The record has a primary key of the Code Pipeline job. Later in the pipeline I wanted to edit that object to append the status of resources created by this pipeline. In order to do…
Where Is It 5 O’Clock Pt: 4
As much as I’ve scratched my head working on this project it has been fun to learn some new things and build something that isn’t infrastructure automation. I’ve learned some frontend web development some backend development and utilized some new Amazon Web Services products. With all that nice stuff said I’m proud to announce that…
Where Is It Five O’Clock Pt: 3
So I left this project at a point where I felt it needed to be re-architected based on the fact that Flask only executes the function once and not every time the page loads. I re-architected the application in my head to include an API that calls the Lambda function and returns a list of…
Where Is It 5 O’Clock Pt: 2
So I spend the evening deploying this web application to Amazon Web Services. In my test environment, everything appeared to be working great because every time I reloaded the page it reloaded the function as well. When I transferred this over to a live environment I realized the Python function only ran every time I…