Resource capacity management in clouds

A workload cluster in a network of workload clusters supporting containerized workloads running in a cluster namespace in communication with the workload cluster, the workload cluster comprising processing circuitry being configured to

• receive a request from a cluster user quota controller, the request containing a proposed set of resource limits for the cluster namespace of a cluster user, and the request comprising a change related to a container resource capacity allocated to the cluster namespace;
• relay to a cluster administrator quota controller the proposed set of resource limits to be evaluated;
• receive from the cluster administrator quota controller, a first set of resource limits selected from the proposed set of resource limits to apply to the cluster namespace of the cluster user, the first set of resource limits comprising resource quotas requested by the cluster administrator quota controller for each resource type in the cluster namespace of the cluster user, the resource quotas informing the cluster admin to increase or decrease the container resource allocation for the cluster namespace;
• and
• use resources in the cluster namespace such that the resource quotas are used to limit allocation of a total amount of the resources that the cluster namespace can consume in the workload cluster.

A method implemented in processing circuitry of a workload cluster in a network of workload clusters supporting containerized workloads running in a cluster namespace, the method comprising:

• receiving a request from a cluster user quota controller for a proposed set of resource limits, the request including a status statement that specifies the cluster namespace, and the request comprising a change related to a container resource capacity allocated to the cluster namespace;
• transmitting a proposed set of resource limits to the cluster administrator quota controller when a proposed resource limit differs from a corresponding resource limit in the proposed set by a threshold amount;
• and
• receiving, from the cluster administrator quota controller, a first set of resource limits to be applied for the cluster namespace, the first set of resource limits comprising resource quotas requested by the cluster administrator quota controller for each resource type in the cluster namespace of the cluster user, the resource quotas informing the cluster admin to increase or decrease the container resource allocation for the cluster namespace;
• and
• using resources in the cluster namespace such that the resource quotas are used to limit allocation of a total amount of the resources that the cluster namespace can consume in the workload cluster.

A workload cluster in a network of workload clusters supporting containerized workloads running in a cluster namespace, the workload cluster comprising processing circuitry being configured to:

• receive a request from a cluster user quota controller for a proposed set of resource limits, the request including a status statement that specifies a cluster namespace, and the request comprising a change related to a container resource capacity allocated to the cluster namespace;
• transmit a proposed set of resource limits to the cluster administrator quota controller when a proposed resource limit differs from a corresponding resource limit in the proposed set by a threshold amount;
• receive, from the cluster administrator quota controller, a first set of resource limits to be applied for the cluster namespace, the first set of resource limits comprising resource quotas requested by the cluster administrator quota controller for each resource type in the cluster namespace of the cluster user, the resource quotas informing the cluster admin to increase or decrease the container resource allocation for the cluster namespace;
• and
• use resources in the cluster namespace such that the resource quotas are used to limit allocation of a total amount of the resources that the cluster namespace can consume in the workload cluster.