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test-connection.yaml⚓︎

Overview⚓︎

The 'test-connection.yaml' file is a YAML configuration file used to define a Kubernetes Pod for testing the connection to a specific service in a software project. The primary purpose of this file is to create a Pod that will run a test to check the connectivity and availability of the specified service.

Table of Contents⚓︎

  1. Prerequisites
  2. Usage
  3. Methods
  4. Useful details

Prerequisites⚓︎

There are no specific dependencies or prerequisites required to use the 'test-connection.yaml' file other than having a Kubernetes cluster to deploy the Pod.

Usage⚓︎

To utilize the 'test-connection.yaml' file in a project, it can be applied using the Kubernetes command-line tool (kubectl) to create the Pod. The YAML file can be applied with the following command: 

kubectl apply -f test-connection.yaml

Methods⚓︎

The file does not contain traditional methods or functions, but it defines a Kubernetes Pod with the following key attributes: - apiVersion: Specifies the version of the Kubernetes API to use. - kind: Defines the type of Kubernetes resource being created, in this case, a Pod. - metadata: Contains information about the Pod such as its name, labels, and annotations. - spec: Describes the desired state of the Pod, including the containers to run and the restart policy.

Useful details⚓︎

  • The Pod defined in the 'test-connection.yaml' file runs a container named 'wget' using the busybox image.
  • The container executes the 'wget' command with arguments to test the connectivity to the specified service using the values provided in the file.
  • The restart policy for the Pod is set to 'Never', indicating that the Pod will not be restarted if it exits.

CODE⚓︎

apiVersion: v1 kind: Pod metadata: name: "{{ include "javaee-legacy-app-example.fullname" . }}-test-connection" labels: {{- include "javaee-legacy-app-example.labels" . | nindent 4 }} annotations: "helm.sh/hook": test-success spec: containers: - name: wget image: busybox command: ['wget'] args: ['{{ include "javaee-legacy-app-example.fullname" . }}:{{ .Values.service.port }}'] restartPolicy: Never

CODE⚓︎