tugbot-kubernetes

tugbot-kube

Tugbot Kube is a Continuous Testing Framework for Kubernetes based production/staging/testing environment. Tugbot executes Kubernetes Test Jobs upon some event, like Kubernetes node registration, deployment.

Kubernetes Test Job

Kubernetes Test Job is a regular Kubernetes job. Docker & Kubernetes LABEL is used to discover Kubernetes test job and Tugbot related test metadata. Tugbot Kube will trigger a sequential test job execution upon event (see tugbot-kubernetes-events label). Running a test job should result running a docker test container (1 or more). In order to collect test results and depoly those results to elasticsearch, add tugbot-collect related labels (see tugbot-results-dir label).

Tugbot labels

All Tugbot labels must be prefixed with tugbot- to avoid potential conflict with other labels. Tugbot labels are divided into:

1. Container labels:

• tugbot-results-dir - directory, where test container reports test results; default to /var/tests/results

1. Kubernetess Service labels:

• tugbot-kubernetes-events - list of comma separated Kubernetes events format: Kind.Reason. For example: Node.Starting,ReplicaSet.SuccessfulCreate

#####Example Kubernetes Test Job (add tugbot events' label to Kubernetes example), test-job.yaml:

apiVersion: batch/v1
kind: Job
metadata:
  name: pi
  labels:
    tugbot-kubernetes-events: Node.Starting,ReplicaSet.SuccessfulCreate
spec:
  template:
    metadata:
      name: pi
    spec:
      containers:
      - name: pi
        image: perl
        command: ["perl",  "-Mbignum=bpi", "-wle", "print bpi(2000)"]
      restartPolicy: Never

It is highly recommended to set restartPolicy: Never when creating a Kubernetes Test Job, so that it will listen for kubernetes events.

Use tugbot-kubernetes-events: Node.Starting,ReplicaSet.SuccessfulCreate Kubernetes label to tell tugbot framework that this is a test job that should be updated when each replica-set is successfuly created at node start.

Running Tugbot Kubernetes inside a Docker container

docker run -d -e KUBERNETES_HOST=<Address> -e KUBERNETES_CERT_PATH=<Kubernetes Certificate Path> --name tugbot-kube gaiadocker/tugbot-kube

• KUBERNETES_HOST - Kubernetes host address (default: https://192.168.99.100:8443).
• KUBERNETES_CERT_PATH - dirctory should contain: ca.pem, apiserver.crt, apiserver.key.
• TUGBOT_KUBERNETES_NAMESPACE - Namespace where jobs created by Tugbot should run.
• TUGBOT_KUBERNETES_LOG_LEVEL - Enable debug mode. When this option set to debug you'll see more verbose logging in the Tugbot Kubernetes log file.