Cloud Services

Container Cluster Management

Glossary of terms
Published On Jun 07, 2024 - 6:02 AM

Glossary of terms

This topic defines critical terms used throughout the Kyndryl - Container Cluster Management user documentation.
  1. ServiceAccount (InProgress)
    :
    • A principal identity recognizable by users and peripheral systems, composed of a set of secrets for authentication and authorization.
  2. ClusterRole (InProgress)
    :
    • A cluster-level logical grouping of PolicyRules, accessible as a unit by RoleBinding or ClusterRoleBinding.
  3. Role (InProgress)
    :
    • A namespaced logical grouping of PolicyRules, accessible as a unit by RoleBinding.
  4. ClusterRoleBinding (InProgress)
    :
    • Links to a ClusterRole without containing it. It references a ClusterRole in the global namespace and adds information through Subject.
  5. RoleBinding (InProgress)
    :
    • References a Role without containing it. It can link to a Role in the same namespace or a ClusterRole in the global namespace, adding 'who' information via Subjects and specifying the namespace of existence.
  6. ConfigMap
    :
    • Holds configuration data for pods to utilize.
  7. Secret
    :
    • Contains secret data of a certain type. A Service is a named software service abstraction (e.g., MySQL), comprising a local port and a selector to determine which pods respond to requests.
  8. Ingress
    :
    • A collection of rules enabling inbound connections to reach backend-defined endpoints. It can configure services for external URLs, load balance traffic, terminate SSL, and more.
  9. PersistentVolume (PV)
    :
    • A storage resource provisioned by an administrator.
  10. PersistentVolumeClaim
    :
    • A user's request for and claim to a Persistent Volume.
  11. Pod
    :
    • A collection of containers that can operate on a host.
  12. Deployment
    :
    • Facilitates declarative updates for Pods and ReplicaSets.
  13. ReplicaSet
    :
    • Ensures a specified number of pod replicas are running at any given time.
  14. DaemonSet
    :
    • Represents the configuration of a daemon set.
  15. StatefulSet
    :
    • Represents a set of pods with consistent identities, defined by network and storage attributes.
  16. Job
    :
    • Represents the configuration of a single job.
  17. CronJob
    :
    • Represents the configuration of a single cron job.
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