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New auxmanager and client for vk pods
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,16 @@ | ||
| // Copyright 2019-2023 The Liqo Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| // Package utils contains some utility functions used by the virtual node controller. | ||
| package utils |
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2019-2023 The Liqo Authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package utils | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| appsv1 "k8s.io/api/apps/v1" | ||
| "k8s.io/klog/v2" | ||
| "sigs.k8s.io/controller-runtime/pkg/client" | ||
|
|
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| virtualkubeletv1alpha1 "github.com/liqotech/liqo/apis/virtualkubelet/v1alpha1" | ||
| "github.com/liqotech/liqo/pkg/utils/getters" | ||
| "github.com/liqotech/liqo/pkg/vkMachinery" | ||
| vkforge "github.com/liqotech/liqo/pkg/vkMachinery/forge" | ||
| ) | ||
|
|
||
| // GetVirtualKubeletDeployment returns the VirtualKubelet Deployment of a VirtualNode. | ||
| func GetVirtualKubeletDeployment( | ||
| ctx context.Context, cl client.Client, virtualNode *virtualkubeletv1alpha1.VirtualNode, | ||
| vkopts *vkforge.VirtualKubeletOpts) (*appsv1.Deployment, error) { | ||
| var deployList appsv1.DeploymentList | ||
| labels := vkforge.VirtualKubeletLabels(virtualNode, vkopts) | ||
| if err := cl.List(ctx, &deployList, client.MatchingLabels(labels)); err != nil { | ||
| klog.Error(err) | ||
| return nil, err | ||
| } | ||
|
|
||
| if len(deployList.Items) == 0 { | ||
| klog.V(4).Infof("[%v] no VirtualKubelet deployment found", virtualNode.Spec.ClusterIdentity.ClusterID) | ||
| return nil, nil | ||
| } else if len(deployList.Items) > 1 { | ||
| err := fmt.Errorf("[%v] more than one VirtualKubelet deployment found", virtualNode.Spec.ClusterIdentity.ClusterID) | ||
| klog.Error(err) | ||
| return nil, err | ||
| } | ||
|
|
||
| return &deployList.Items[0], nil | ||
| } | ||
|
|
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| // CheckVirtualKubeletPodAbsence checks if a VirtualNode's VirtualKubelet pods are absent. | ||
| func CheckVirtualKubeletPodAbsence(ctx context.Context, cl client.Client, | ||
| vn *virtualkubeletv1alpha1.VirtualNode, vkopts *vkforge.VirtualKubeletOpts) (bool, error) { | ||
| klog.V(4).Infof("[%v] checking virtual-kubelet pod absence", vn.Spec.ClusterIdentity.ClusterName) | ||
| list, err := getters.ListVirtualKubeletPodsFromVirtualNode(ctx, cl, vn, vkopts) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| klog.V(4).Infof("[%v] found %v virtual-kubelet pods", vn.Spec.ClusterIdentity.ClusterName, len(list.Items)) | ||
| return len(list.Items) == 0, err | ||
| } | ||
|
|
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| // Flag is a VirtualKubelet flag. | ||
| // Name must contain the "--" prefix. | ||
| type Flag struct { | ||
| Name string | ||
| Value string | ||
| } | ||
|
|
||
| // String returns the flag as a string. | ||
| func (f Flag) String() string { | ||
| return fmt.Sprintf("%s=%s", f.Name, f.Value) | ||
| } | ||
|
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| // CheckVirtualKubeletFlagsConsistence checks if the VirtualKubelet args are consistent with the flag list provided. | ||
| // It returns true if all the flags are consistent, false otherwise. | ||
| // A flag is not consistent if it is present in the VirtualKubelet args with a different value. | ||
| func CheckVirtualKubeletFlagsConsistence( | ||
| ctx context.Context, cl client.Client, vn *virtualkubeletv1alpha1.VirtualNode, vkopts *vkforge.VirtualKubeletOpts, flags ...Flag) (bool, error) { | ||
| list, err := getters.ListVirtualKubeletPodsFromVirtualNode(ctx, cl, vn, vkopts) | ||
| if err != nil { | ||
| return false, err | ||
| } | ||
| for i := range list.Items { | ||
| for j := range list.Items[i].Spec.Containers { | ||
| if list.Items[i].Spec.Containers[j].Name != vkMachinery.ContainerName { | ||
| continue | ||
| } | ||
| for _, arg := range list.Items[i].Spec.Containers[j].Args { | ||
| for _, flag := range flags { | ||
| if strings.HasPrefix(arg, flag.Name) { | ||
| if flag.String() != arg { | ||
| return false, nil | ||
| } | ||
| break | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return true, nil | ||
| } |