Configuring User Tags

When creating VM instances, CloudTik will configure some built-in tags to the VM instances for storing some meta information. These tags include:

cloudtik-cluster-name
cloudtik-node-name
cloudtik-node-kind
cloudtik-user-node-type
cloudtik-node-status
cloudtik-node-number
cloudtik-launch-config
cloudtik-runtime-config

User can specify additional tags if there is need.

Head tags and worker tags

You can specify the additional tags in node_config of node type definition under available_node_types, which provide the capability to specify tags per user node type definition.

While the format of defining tags/labels within the node config varies based on the cloud provider as described in the next section.

Tags configurations

This section describes the format to define tags/labels for each cloud provider.

AWS

Use the same AWS TagSpecifications format to specify additional user tags.

For example,

available_node_types:   
    worker.default:
        node_config:
            TagSpecifications:
              - ResourceType: instance
                Tags:
                  - Key: my-tag
                    Value: my-tag-value

GCP

Use labels field to specify a mapping of label name and value.

For example,

available_node_types:
    worker-default:
        node_config:
            labels:
                my-label-name: my-label-value

Azure

Use tags field to specify a mapping of tag name and value.

For example,

available_node_types:
    worker-default:
        node_config:
            tags:
                my-tag-name: my-tag-value

Kubernetes

For Kubernetes, the node config is the pod spec definition. User can use the pod metadata labels field to specify the labels.

For example,

available_node_types:
    worker-default:
        node_config:
            pod:
                metadata:
                    labels:
                        my-label-name: my-label-value