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devops

2018


Monitoring your application locally with NewReclic

The New Relic Digital Intelligence Platform provides actionable insights to drive digital business results. You can monitor your application and infrastructure performance so you can quickly resolve issues and improve digital customer experiences.

Following instruction should help you to connect your application to NewRelic platform and customize application events sent to the platform.

2017


External Site Monitoring

How did you know that your site is down? From your customers? Then it’s time to start using some external monitoring tool.

Logging Policy

There are different points of view on how logging levels should be used in code. I will share mine.

My assumption is: “There should be no errors in logs when everything is fine.”

2016


Installing Ansible 2.1.1 on Debian 8 (Jessie)

Recently I faced some dependency issues trying to install Ansible 2 on Debian 8 (Jessie). Googling a bit I found a solution which was a basically to upgrade or install missing dependencies. Following script automates the installation procedure:

Developing in "Dirty Trunk"

I’m going to start a series of posts covering different aspects of DevOps.

Let’s start today with branching strategy called “dirty trunk”. Actually, this is an attempt to avoid branching at all.

2014


Jolokia: HTTP/JSON bridge for JMX

Very often there is a need to monitor the Java application server. For example, external monitoring tool, like Nagious/Zenoss/Zabbix needs to get some metrics, like heap memory usage or thread count.

Usual way to get that metrics is to setup access to application server via JMX.

But, sometimes, it is not possible to leave some other port opened for JMX and the only port available is HTTP(80 or 8080) or HTTPS(443 or 8443).

Here the Jolokia comes to rescue!

Establishing Customizable Tomcat Configuration

Deploying to Apache Tomcat often requires making changes to default configuration. These changes are often environment specific. Also, when upgrading a Tomcat to new version you need to be sure that all your custom changes have not been lost and were applied to new configuration. To deal with all that stuff Tomcat via separation of the configuration. This post contains step-by-step instruction will help you to establish custom tomcat configuration.