If you are running any kind of environment with greater than 10 servers, than you need a CMDB (Configuration Management DataBase). CMDB’s are the brain of your fleet & it’s environment. You can store anything in a CMDB, but commonly the metadata in CMDB’s consists of any of the following physical & digital asset inventory, … [Read more…]
For the TL;DR version, skip straight to the Cassandra Examples Intro & Background During my years at PayPal I was fortunate enough to be a part of a pioneering architecture & engineering team that designed & delivered a new paradigm for how we deployed & operated applications using a model that included 5 Availability Zones per … [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…]
Why Service Discovery ? Service Discovery effectively replacing having to manually assign or automate your own DNS entries for nodes on your network. Service Discovery aims to move even further away from treating VM’s like pets to cattle, by getting rid of the age old practice Hostname & FQDN having contextual value. Instead when using services … [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…]