MongoDB Example Helm Chart

This repository contains a Helm chart for deploying MongoDB. The chart is hosted on GitHub Pages at https://mongodb.charts.jotamario.lat/ .

Prerequisites

• Kubernetes 1.12+
• Helm 3.0+

Installing the Chart

To install the chart with the release name my-release:

helm repo add quizapp-mongodb https://mongodb.charts.jotamario.lat/
helm repo update
helm install my-release quizapp-mongodb/quizapp-mongodb

Uninstalling the Chart

To uninstall/delete the my-release deployment:

helm delete my-release

The command removes all the Kubernetes components associated with the chart and deletes the release.

Configuration

The following table lists the configurable parameters of the MongoDB chart and their default values.

Parameter	Description	Default
replicaCount	Number of replicas	1
image.repository	MongoDB image repository	mongo
image.tag	MongoDB image tag	4.4.6
image.pullPolicy	Image pull policy	IfNotPresent
service.type	Kubernetes service type	ClusterIP
service.port	MongoDB service port	27017
persistence.enabled	Enable persistence using PVC	true
persistence.storageClass	PVC Storage Class for MongoDB volume	""
persistence.accessMode	PVC Access Mode for MongoDB volume	ReadWriteOnce
persistence.size	PVC Storage Request for MongoDB volume	8Gi
mongodbRootPassword	MongoDB root password	""
mongodbUsername	MongoDB username	""
mongodbPassword	MongoDB password	""
mongodbDatabase	MongoDB database	""

Specify each parameter using the --set key=value[,key=value] argument to helm install. For example:

helm install my-release quizapp-mongodb/quizapp-mongodb --set mongodbRootPassword=secretpassword,mongodbUsername=my-user,mongodbPassword=my-password,mongodbDatabase=my-database

Alternatively, a YAML file that specifies the values for the parameters can be provided while installing the chart. For example:

helm install my-release quizapp-mongodb/quizapp-mongodb -f values.yaml

Accessing MongoDB

Once the chart is deployed, you can access MongoDB using the following command:

kubectl run --namespace default my-release-mongodb-client --rm --tty -i --restart='Never' --image docker.io/bitnami/mongodb:4.4.6-debian-10-r0 --command -- mongo --host my-release-mongodb

Testing the Deployment

To test the deployment, you can use the following command:

helm test my-release

This will run the test defined in templates/tests/test-connection.yaml.

Cleanup

To delete the deployment, use the following command:

helm delete my-release

This will remove all the Kubernetes components associated with the chart and delete the release.

License

This project is licensed under the MIT License - see the LICENSE file for details.