cassandra

OverOps Cassandra Example

This is a simple example of using OverOps to monitor an external Docker image, in this case Cassandra. Instead of specifying the agentlib inside the container during as a JVM startup flag, this example uses the JAVA_TOOL_OPTIONS environment variable to auto attach to any JVM launched inside the container. The docker-compose.yml contains the following services:

• collector - an OverOps Collector running in a dedicated container (aka Remote Collector)
• sidecar - an OverOps Agent running in a dedicated container whose directory is exposed as a Docker volume mount
• cassandra - an instance of Cassandra monitored by an OverOps Agent mounted in the sidecar

Getting Started

To begin, you must first create a file called overops-key.env and place it in the same directory as the Dockerfile. Below is a sample overops-key.env file.

overops-key.env

TAKIPI_SECRET_KEY=your-very-own-overops-secret-key

Docker Compose

Start the Containers

docker-compose up

Stop and Destroy the Containers

docker-compose down

Docker Images

• Remote Collector - timveil/oo-docker-remote-collector
• Agent Sidecar - timveil/oo-docker-agent-sidecar
• Cassandra - cassandra