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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,166 @@ | ||
| /* | ||
| Copyright 2023 The Kubernetes 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 components | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| corev1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
|
|
||
| "sigs.k8s.io/kwok/pkg/apis/internalversion" | ||
| "sigs.k8s.io/kwok/pkg/utils/format" | ||
| "sigs.k8s.io/kwok/pkg/utils/slices" | ||
| ) | ||
|
|
||
| // ConvertToPod converts a component to a pod. | ||
| func ConvertToPod(component internalversion.Component) corev1.Pod { | ||
| env := []corev1.EnvVar{} | ||
| for _, e := range component.Envs { | ||
| env = append(env, corev1.EnvVar{ | ||
| Name: e.Name, | ||
| Value: e.Value, | ||
| }) | ||
| } | ||
|
|
||
| ports := []corev1.ContainerPort{} | ||
| for _, p := range component.Ports { | ||
| ports = append(ports, corev1.ContainerPort{ | ||
| Name: p.Name, | ||
| ContainerPort: int32(p.Port), | ||
| HostPort: int32(p.Port), | ||
| Protocol: corev1.Protocol(p.Protocol), | ||
| }) | ||
| } | ||
|
|
||
| volumes := []corev1.Volume{} | ||
| volumeMounts := []corev1.VolumeMount{} | ||
| for i, v := range component.Volumes { | ||
| name := v.Name | ||
| if name == "" { | ||
| name = fmt.Sprintf("volume-%d", i) | ||
| } | ||
| s := corev1.HostPathVolumeSource{ | ||
| Path: v.HostPath, | ||
| } | ||
| if v.PathType != "" { | ||
| t := corev1.HostPathType(v.PathType) | ||
| s.Type = &t | ||
| } | ||
| volumes = append(volumes, corev1.Volume{ | ||
| Name: name, | ||
| VolumeSource: corev1.VolumeSource{ | ||
| HostPath: &s, | ||
| }, | ||
| }) | ||
| volumeMounts = append(volumeMounts, corev1.VolumeMount{ | ||
| Name: name, | ||
| MountPath: v.MountPath, | ||
| ReadOnly: v.ReadOnly, | ||
| }) | ||
| } | ||
|
|
||
| p := corev1.Pod{ | ||
| TypeMeta: metav1.TypeMeta{ | ||
| Kind: "Pod", | ||
| APIVersion: "v1", | ||
| }, | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: component.Name, | ||
| Namespace: metav1.NamespaceSystem, | ||
| }, | ||
| Spec: corev1.PodSpec{ | ||
| Containers: []corev1.Container{ | ||
| { | ||
| Name: component.Name, | ||
| Image: component.Image, | ||
| ImagePullPolicy: corev1.PullNever, | ||
| Args: component.Args, | ||
| Command: component.Command, | ||
| Env: env, | ||
| Ports: ports, | ||
| VolumeMounts: volumeMounts, | ||
| }, | ||
| }, | ||
| Volumes: volumes, | ||
| SecurityContext: &corev1.PodSecurityContext{ | ||
| RunAsGroup: format.Ptr[int64](0), | ||
| RunAsUser: format.Ptr[int64](0), | ||
| }, | ||
| RestartPolicy: corev1.RestartPolicyAlways, | ||
| HostNetwork: true, | ||
| }, | ||
| } | ||
| return p | ||
| } | ||
|
|
||
| // ConvertFromPod converts a pod to a component. | ||
| func ConvertFromPod(p corev1.Pod) internalversion.Component { | ||
| if len(p.Spec.Containers) == 0 { | ||
| return internalversion.Component{} | ||
| } | ||
| ports := []internalversion.Port{} | ||
| container := p.Spec.Containers[0] | ||
|
|
||
| for _, port := range container.Ports { | ||
| ports = append(ports, internalversion.Port{ | ||
| Name: port.Name, | ||
| Port: uint32(port.ContainerPort), | ||
| HostPort: uint32(port.HostPort), | ||
| Protocol: internalversion.Protocol(port.Protocol), | ||
| }) | ||
| } | ||
|
|
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| volumes := []internalversion.Volume{} | ||
|
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| for _, vm := range container.VolumeMounts { | ||
| v, ok := slices.Find(p.Spec.Volumes, func(v corev1.Volume) bool { | ||
| return v.Name == vm.Name | ||
| }) | ||
| if !ok { | ||
| continue | ||
| } | ||
| if v.HostPath == nil { | ||
| continue | ||
| } | ||
| volumes = append(volumes, internalversion.Volume{ | ||
| Name: v.Name, | ||
| HostPath: v.HostPath.Path, | ||
| PathType: internalversion.HostPathType(format.ElemOrDefault(v.HostPath.Type)), | ||
| MountPath: vm.MountPath, | ||
| ReadOnly: vm.ReadOnly, | ||
| }) | ||
| } | ||
|
|
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| envs := []internalversion.Env{} | ||
| for _, e := range p.Spec.Containers[0].Env { | ||
| envs = append(envs, internalversion.Env{ | ||
| Name: e.Name, | ||
| Value: e.Value, | ||
| }) | ||
| } | ||
|
|
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| return internalversion.Component{ | ||
| Name: p.Name, | ||
| Image: container.Image, | ||
| Args: container.Args, | ||
| Command: container.Command, | ||
| Ports: ports, | ||
| Volumes: volumes, | ||
| Envs: envs, | ||
| } | ||
| } |
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