A Journey of a Thousand Miles Begins with a Single Step

Monitor process and used ports of Kibana

Monit has the capability to check for a process name. The process itself can also provided a service on a dedicated port, in this Kibana in Production, which uses SSL and expose its service on port 5601.

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Checking for running port on Windows cmd

Using Windows command line is sometimes challenging. Especially if you want to check if a special port is up and running (listening). This post demonstrates how.

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Run Sonarqube with Docker and PostgreSQL

A long time ago (seems like ages to me) I have programming in Java and let my projects analyze with Sonarqube. I always remembered that every Sonarqube upgrade wasn’t quick to made. Since Docker I now have the possibility to run the latest stable Sonarqube version. No manual upgrades anymore. Sounds wonderful. Following installation was made on my Linux Box running Ubuntu 16.04.01 LTS with Docker 1.11.2 and PostgreSQL 9.5.

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Make docker ps readable

Does it bother you, that docker ps has too wide output?

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Show docker container size

If you build docker containers, ensure that you don’t write any data within the containers. Therefore you can use mapped volumes or data containers. Basically your docker containers that hosts the application or service should be immutable. I won’t go into details why, but how to check that a docker container does not grow.

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Correct type mapping in index template for Elasticsearch

If you use Dropwizard Metrics and the Metrics Reporter you might come into the situation, that the max value is not reported as long value. If it is reported as double Elasticsearch will complain you have an invalid mapping type, since a previous one has the type long. To avoid the situation, you can define in the index template, the type Elasticsearch for new indices from that template.

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