The “doctl kubernetes cluster” command is a feature provided by the DigitalOcean command-line interface (CLI) tool. This command allows you to manage your Kubernetes clusters on the DigitalOcean platform and view various configuration options related to those clusters.
With the “doctl kubernetes cluster” command, you can perform the following operations:
- List clusters: By using the “doctl kubernetes cluster list” command, you can retrieve a list of all the Kubernetes clusters associated with your DigitalOcean account. The output typically includes details such as the cluster name, unique identifier, region, version of Kubernetes, and the number of nodes in the cluster.
- Create clusters: The “doctl kubernetes cluster create” command enables you to create a new Kubernetes cluster. During the cluster creation process, you need to specify various parameters, such as the cluster name, region, version of Kubernetes, and the number and size of worker nodes. Additionally, you can customize the cluster’s networking, enable features like auto-scaling and monitoring, and configure advanced options like private networking and node pools.
- Delete clusters: Using the “doctl kubernetes cluster delete” command, you can remove a Kubernetes cluster from your DigitalOcean account. You need to provide the cluster’s unique identifier or its name as an argument to the command. Upon execution, the specified cluster and all its associated resources, such as worker nodes and volumes, will be permanently deleted.
In addition to managing clusters, the “doctl kubernetes cluster” command also provides options to view configuration details and settings related to your clusters. For example:
- “doctl kubernetes cluster kubeconfig” allows you to generate and output the Kubernetes configuration file (kubeconfig) for a specific cluster. This file contains the necessary information for authenticating and interacting with the cluster using the Kubernetes command-line tool (kubectl).
- “doctl kubernetes cluster get” retrieves detailed information about a specific Kubernetes cluster, including its name, unique identifier, version, region, and the status of its nodes.
By utilizing these commands, you can effectively manage and configure your Kubernetes clusters on DigitalOcean. Whether it’s listing existing clusters, creating new ones, deleting clusters that are no longer required, or accessing configuration options, the “doctl kubernetes cluster” command provides you with the necessary tools to work with your Kubernetes infrastructure.
It’s worth noting that the DigitalOcean CLI tool and its features are subject to updates and improvements over time. Therefore, it’s advisable to consult the official documentation or use the “–help” flag alongside the specific command to access the most up-to-date information and understand the available options for managing Kubernetes clusters using “doctl kubernetes cluster.”
doctl kubernetes cluster Command Examples
1. Create a Kubernetes cluster:
# doctl kubernetes cluster create --count 3 --region nyc1 --size s-1vcpu-2gb --version latest cluster_name
2. List all Kubernetes clusters:
# doctl kubernetes cluster list
3. Fetch and save the kubeconfig:
# doctl kubernetes cluster kubeconfig save cluster_name
4. Check for available upgrades:
# doctl kubernetes cluster get-upgrades cluster_name
5. Upgrade a cluster to a new Kubernetes version:
# doctl kubernetes cluster upgrade cluster_name
6. Delete a cluster:
# doctl kubernetes cluster delete cluster_name