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feat(k8s): review the resource assignement when creating a kubernetes application EE-437 (#5254)
* feat(nodes limits)Review the resource assignement when creating a Kubernetes application EE-437 * feat(nodes limits) review feedback EE-437 * feat(nodes limits) workaround for lodash cloneDeep not working in production mode EE-437 * feat(nodes limits) calculate max cpu of slide bar with floor function instead of round function EE-437 * feat(nodes limits) another review feedback EE-437 * feat(nodes limits) cleanup code EE-437 * feat(nodes limits) EE-437 pr feedback update * feat(nodes limits) EE-437 rebase onto develop branch * feat(nodes limits) EE-437 another pr feedback update Co-authored-by: Simon Meng <simon.meng@portainer.io>
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10 changed files with 453 additions and 42 deletions
42
api/kubernetes/cli/nodes_limits.go
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42
api/kubernetes/cli/nodes_limits.go
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package cli
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import (
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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 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(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(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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