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https://github.com/portainer/portainer.git
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54d47ebc76
* client-go library update + go mod tidy * update all k8s methods to include context * docker/cli updated to v20.10.9 (latest) * - removed docker/docker to docker/engine replace directive - go mod tidy * docker/docker updated to v20.10.9 (latest)
44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
package cli
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import (
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"context"
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portainer "github.com/portainer/portainer/api"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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// GetNodesLimits gets the CPU and Memory limits(unused resources) of all nodes in the current k8s environment(endpoint) connection
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func (kcl *KubeClient) GetNodesLimits() (portainer.K8sNodesLimits, error) {
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nodesLimits := make(portainer.K8sNodesLimits)
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nodes, err := kcl.cli.CoreV1().Nodes().List(context.TODO(), metav1.ListOptions{})
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if err != nil {
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return nil, err
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}
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pods, err := kcl.cli.CoreV1().Pods("").List(context.TODO(), metav1.ListOptions{})
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if err != nil {
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return nil, err
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}
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for _, item := range nodes.Items {
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cpu := item.Status.Allocatable.Cpu().MilliValue()
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memory := item.Status.Allocatable.Memory().Value()
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nodesLimits[item.ObjectMeta.Name] = &portainer.K8sNodeLimits{
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CPU: cpu,
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Memory: memory,
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}
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}
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for _, item := range pods.Items {
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if nodeLimits, ok := nodesLimits[item.Spec.NodeName]; ok {
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for _, container := range item.Spec.Containers {
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nodeLimits.CPU -= container.Resources.Requests.Cpu().MilliValue()
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nodeLimits.Memory -= container.Resources.Requests.Memory().Value()
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}
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}
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}
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return nodesLimits, nil
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}
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