AWS Lambda functions are a great way to run some code on a trigger/schedule without needing a whole server dedicated to it. They can be cost effective, but be careful depending on how long they run, and the number of executions per hour, they can be quite costly as well. For my use case, I … [Read more…]
Boto is a Software Development Kit for accessing the AWS API’s using Python. https://github.com/boto/boto3 Recently, I needed to determine how many of my EC2 instances were spawned in a public subnet, that also had security groups with wide open access on any port via any protocol to the instances. Because I have an IGW (Internet … [Read more…]
I have been spending a lot of time designing a Hybrid Cloud that consists of Openstack and public cloud platforms. In particular I have been spending a lot of time designing the AWS portion of the Hybrid Cloud Platform. Today I found myself continually needing to look up AWS public address space and then parsing out … [Read more…]
Continuing on our Object-Oriented Programming with Python series, this is article 2 of 3 on the 2nd pillar, Inheritance. You can find the first article about Encapsulation in this series here. Inheritance – The Second Pillar Inheritance in OOP is the ability to have one class inherit the attributes of another class. Inheritance is simple to implement, but arguably … [Read more…]
Vault Vault is a command line utility for encrypting & decrypting things. Those things are stored on disk in hidden files, meaning in *nix they simply have a ‘.’ in front and don’t show up unless you type ls -la 😉 But anyway, who cares if someone can locate the files ! They are AES encrypted … [Read more…]