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Helm Charts Quick Start

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  • Prerequisites
  • Procedure
  • Register for an Atlas account or log in.
  • Create API keys for your organization.
  • Deploy Atlas Kubernetes Operator.
  • Deploy the Atlas database deployment.
  • Check the status of your database user.
  • Retrieve the secret that Atlas Kubernetes Operator created to connect to the database deployment.

You can use Atlas Kubernetes Operator to manage resources in Atlas without leaving Kubernetes. This tutorial demonstrates how to create your first cluster in Atlas from Helm Charts with Atlas Kubernetes Operator.

Note

Would you prefer to start without Helm?

To create your first cluster in Atlas from Kubernetes configuration files with Atlas Kubernetes Operator, see Quick Start.

This tutorial requires:

  • A running Kubernetes cluster with nodes running processors with the x86-64, AMD64, or ARM64 architecture.

You can access the Atlas Kubernetes Operator project on GitHub:

  • https://github.com/mongodb/mongodb-atlas-kubernetes

Important

Custom Resources Definitions Take Priority

Atlas Kubernetes Operator uses custom resource configuration files to manage your Atlas configuration. Each custom resource definition overrides settings specified in other ways such as in the Atlas UI. If you delete a custom resource, Atlas Kubernetes Operator deletes the object from Atlas unless you use annotations to skip deletion. To learn more, see the Create and Update Process and the Delete Process.

1

Register a new Atlas Account or Log in to Your Atlas Account.

2

Note

You need the following public API key, private API key, and the organization ID information to configure Atlas Kubernetes Operator access to Atlas.

Create an API Key in an Organization and configure the API Access List.

You need the following public API key, private API key, and the organization ID information to configure Atlas Kubernetes Operator access to Atlas.

3

Run one of the following sets of commands:

  • If you want Atlas Kubernetes Operator to watch all namespaces in the Kubernetes cluster, run the following commands:

    helm repo add mongodb https://mongodb.github.io/helm-charts
    helm install atlas-operator --namespace=atlas-operator --create-namespace mongodb/mongodb-atlas-operator
  • If you want Atlas Kubernetes Operator to watch only its own namespace, set the --watchNamespaces flag to its own namespace, and run the following command:

    Note

    You can set the --watchNamespaces flag only to its own namespace. Setting the --watchNamespaces flag to any other namespace is currently unsupported.

    helm install atlas-operator --namespace=atlas-operator --set watchNamespaces=atlas-operator --create-namespace mongodb/mongodb-atlas-operator
4

The --set flags in the following example override the Values.yaml file values with your Atlas project name, organization ID, and API keys.

Note

mongodb/atlas-deployment references the name of a chart in the repository.

Run the following command:

helm install atlas-deployment \
mongodb/atlas-deployment \
--namespace=my-cluster \
--create-namespace \
--set project.atlasProjectName='My Project' \
--set atlas.orgId='<orgid>' \
--set atlas.publicApiKey='<publicKey>' \
--set atlas.privateApiKey='<privateApiKey>'

Alternatively, you can clone the helm-charts project on GitHub, edit the Values.yaml file directly, and add your local directory with the following command:

helm repo add mongodb <your-updated-helm-charts-directory>

To learn more about the available parameters, see AtlasDeployment Custom Resource.

To create a serverless instance, see the serverless instance example.

5

Run the following command until you recieve a True response, which indicates the database user is ready:

Note

The AtlasDatabaseUser Custom Resource waits until the database deployment is ready. Creating a new database deployment can take up to 10 minutes.

kubectl -n my-cluster get atlasdatabaseusers atlas-deployment-admin-user -o=jsonpath='{.status.conditions[?(@.type=="Ready")].status}'
6

Run the following command:

Important

The following command requires jq 1.6 or higher.

kubectl -n my-cluster get secret my-project-atlas-atlas-cluster-admin-user -o json | jq -r '.data | with_entries(.value |= @base64d)';

Note

Your connection strings will differ from the following example.

{
"connectionStringStandard": "mongodb://admin-user:%25SomeLong%25password$foradmin@atlas-cluster-shard-00-00.nlrvs.mongodb.net:27017,atlas-cluster-shard-00-01.nlrvs.mongodb.net:27017,atlas-cluster-shard-00-02.nlrvs.mongodb.net:27017/?ssl=true&authSource=admin&replicaSet=atlas-11q9bn-shard-0",
"connectionStringStandardSrv": "mongodb+srv://admin-user:%25SomeLong%25password$foradmin@atlas-cluster.nlrvs.mongodb.net",
"password": "%SomeLong%password$foradmin",
"username": "admin-user"
}

You can use this secret in your application:

containers:
- name: test-app
env:
- name: "CONNECTION_STRING"
valueFrom:
secretKeyRef:
name: my-project-atlas-atlas-cluster-admin-user
key: connectionStringStandardSrv
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