Hopefully it’s obvious that separating configuration from application code is always a good idea. One simple and effective way I’ve found to do this in my python (think bottle, flask, etc.) apps is with a simple JSON configuration file. Choosing JSON makes sense for a few reasons: Easy to read (for humans) Easy to consume… Continue reading
Posts tagged json
OpenStack REST API
There are some high quality resources that already cover the OpenStack API, so this is a YEA (yet another example) post. See the resources section below for some helpful links. OpenStack APIs provide access to all OpenStack components, such as nova (compute), glance (VM images), swift (object storage), cinder (block storage), keystone (authentication) and neutron… Continue reading →
Lightweight Replication Monitoring with MongoDB
One of my applications runs on a large assortment of hosts split between various data centers. Some of these are redundant pairs and others are in load balanced clusters. They all require a set of identical files which represent static content and other data. rsync was chosen to facilitate replication of data from a source… Continue reading →
RESTful Java Servlet: Serializing to/from JSON with Jackson
In a previous article I demonstrated one way to create a RESTful interface using a plain Java Servlet. In this article I wanted to extend that to include JSON serialization using Jackson. I found a very simple article showing a basic case mapping a POJO to JSON and back again. However, when I copied this… Continue reading →
Hands on MongoDB introduction and installation
MongoDB is a database. However, unlike conventional relational databases that are based on well defined schema and use SQL as the primary interface to manage the data, MongoDB instead uses document based storage. The storage uses a format known as BSON, which is a modified form of JSON. This makes the stored documents very flexible… Continue reading →