Portainer

Interact with Portainer via API

Actions190

Auth Actions
- Authenticate User
- Validate O Auth
Backup Actions
- Backup
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Custom Templates Actions
- Custom Template List
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- Custom Template File
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- Custom Template Create String
Docker Actions
- Docker Container Gpus Inspect
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Intel Actions
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- Device Action
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Kubernetes Actions
- Get All Kubernetes Applications
- Get All Kubernetes Applications Count
- Delete Cluster Role Bindings
- Delete Cluster Roles
- Get All Kubernetes Cluster Role Bindings
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- Get Applications Resources
- Get Kubernetes Metrics For All Nodes
- Get Kubernetes Metrics For Node
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- Get Kubernetes Metrics For Pod
- Delete Kubernetes Namespace
- Get Kubernetes Namespaces
- Create Kubernetes Namespace
- Update Kubernetes Namespace Deprecated
- Get Kubernetes Namespace
- Update Kubernetes Namespace
- Get Kubernetes Config Map
- Get Kubernetes Ingress Controllers By Namespace
- Update Kubernetes Ingress Controllers By Namespace
- Get All Kubernetes Ingresses
- Create Kubernetes Ingress
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- Get Kubernetes Ingress
- Get Kubernetes Secret
- Get Kubernetes Services By Namespace
- Create Kubernetes Service
- Update Kubernetes Service
- Kubernetes Namespaces Toggle System
- Get Kubernetes Volumes In Namespace
- Get Kubernetes Namespaces Count
- Get Kubernetes Nodes Limits
- Get Kubernetes RBAC Status
- Delete Role Bindings
- Get Kubernetes Role Bindings
- Get Kubernetes Roles
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- Get Kubernetes Secrets
- Get Kubernetes Secrets Count
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- Get Kubernetes Volume
- Get All Kubernetes Volumes Count
- Get Kubernetes Config
Ldap Actions
- LDAP Check
Registries Actions
- Registry Create
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Resource Controls Actions
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- Webhook Invoke
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Team Memberships Actions
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Templates Actions
- Template File
Upload Actions
- Upload TLS
Users Actions
- User List
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- User Admin Init

Kubernetes → Get Kubernetes Namespaces

AI-generated

Overview

This node operation retrieves Kubernetes namespaces from a specified environment. It is useful for users who want to list all namespaces within a Kubernetes cluster, optionally including detailed resource quota information for each namespace. Practical applications include monitoring cluster organization, managing resources, or integrating namespace data into automation workflows.

Properties

Name	Meaning
Id	Environment identifier (a numeric ID) specifying which Kubernetes environment to query.
With Resource Quota	Boolean option to include resource quota details in the namespace information. Options: `true` or `false`.

Output

The output JSON contains an array of Kubernetes namespaces retrieved from the specified environment. Each namespace object includes standard namespace metadata and, if requested, resource quota information associated with that namespace.

If the "With Resource Quota" property is set to true, the namespace objects will have additional fields detailing resource quotas, such as CPU, memory limits, and other resource constraints.

No binary data output is produced by this node operation.

Dependencies

Requires access to a Kubernetes environment identified by the provided environment ID.
Needs an API key credential configured in n8n to authenticate requests to the Kubernetes API or intermediary service managing Kubernetes environments.
The node uses HTTP requests with query parameters to fetch namespaces and optionally their resource quotas.

Troubleshooting

Common issues:
- Invalid or missing environment ID can cause failure to retrieve namespaces.
- Insufficient permissions or incorrect API credentials may result in authorization errors.
- Network connectivity problems between n8n and the Kubernetes API endpoint can cause timeouts or connection failures.
Error messages:
- Authorization errors typically indicate invalid or expired API keys; verify and update credentials.
- "Namespace not found" or empty results may mean the environment ID does not correspond to any accessible Kubernetes cluster.
- Query parameter errors might occur if the "With Resource Quota" value is malformed; ensure it is a boolean.

Links and References

Kubernetes Namespaces Documentation
Kubernetes Resource Quotas
n8n HTTP Request Node Documentation (for understanding how API calls are made)

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