Visualizing data using Logstash and Elasticsearch.
Software engineering, testing methods, build workflows and deployment mechanisms.
Threat mitigation, systems monitoring, traffic visualization and troubleshooting.
Systems design, server and container management and scaling .
Automating Nagios Configurations
Using Consul and Consul-Template.
Consul and Consul-Template are two powerful tools for updating server files and executing a command after the file has been updated. This makes it a great and lightweight tool for managing configuration files for applications that need to reload or restart after
sel.datum(aryData) vs. sel.data(aryData) .datum() gives aryData to all elements in the selection. .data() gives one unique array value in aryData to each element in the selection (i.e. .update()). It also has .enter() and .exit() as methods. Example Here’s the data we’ll
This one-liner strips all numbers from any string. I show it in BASH using sed which does a RegEx expression to match only digits. Python has the built-in function str.isdigit() so we test each character and make a list comprehension
This post is a brief introduction of how I setup a system to add, update and remove Nagios configurations as servers are created and destroyed. Future posts detailing each step will be coming soon. Until then you can go to hashicorp.com or nagios.org for
Now that we have some keys in Consul, we want to get that into a Nagios configuration file using Consul-Template. Consul-Template requires only two files which are used to create a third. hosts.hcl – template configuration hosts.ctmpl – template hosts.cfg –
In my overview post I showed a key/value structure in Consul that could be used to store metadata on each Node. Now I’ll discusses how to put node metadata into the Consul key-store. For this example we have two web servers in the san
To say that Google is going after Enterprise customers would be an understatement. The Keynotes and Breakout Session Talks made their intentions abundantly clear. In my opinion and from my research, what has to happen is Google needs to convince
DevOps is a culture. It is a set of values, beliefs and practices used by an organization. It is not a department, job title or set of tools. These things are born from a DevOps culture but they do not