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podman support: Enable Podman support.
Signed-off-by: Paweł Szulik <paul.szulik@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,138 @@ | ||
| // Copyright 2021 Google Inc. All Rights Reserved. | ||
| // | ||
| // 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 pages | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "net/url" | ||
| "path" | ||
| "time" | ||
|
|
||
| dockerutil "github.com/google/cadvisor/container/docker/utils" | ||
| "github.com/google/cadvisor/container/podman" | ||
| info "github.com/google/cadvisor/info/v1" | ||
| "github.com/google/cadvisor/manager" | ||
|
|
||
| "k8s.io/klog/v2" | ||
| ) | ||
|
|
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| const PodmanPage = "/podman/" | ||
|
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| func servePodmanPage(m manager.Manager, w http.ResponseWriter, u *url.URL) { | ||
| start := time.Now() | ||
|
|
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| containerName := u.Path[len(PodmanPage)-1:] | ||
| rootDir := getRootDir(containerName) | ||
|
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| var data *pageData | ||
|
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| if containerName == "/" { | ||
| // Scenario for all containers. | ||
| status, err := podman.Status() | ||
| if err != nil { | ||
| http.Error(w, fmt.Sprintf("failed to get podman info: %v", err), http.StatusInternalServerError) | ||
| return | ||
| } | ||
| images, err := podman.Images() | ||
| if err != nil { | ||
| http.Error(w, fmt.Sprintf("failed to get podman images: %v", err), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| reqParams := info.ContainerInfoRequest{ | ||
| NumStats: 0, | ||
| } | ||
| conts, err := m.AllPodmanContainers(&reqParams) | ||
| if err != nil { | ||
| http.Error(w, fmt.Sprintf("failed to get container %q with error: %v", containerName, err), http.StatusNotFound) | ||
| return | ||
| } | ||
| subcontainers := make([]link, 0, len(conts)) | ||
| for _, cont := range conts { | ||
| subcontainers = append(subcontainers, link{ | ||
| Text: getContainerDisplayName(cont.ContainerReference), | ||
| Link: path.Join(rootDir, PodmanPage, dockerutil.ContainerNameToId(cont.ContainerReference.Name)), | ||
| }) | ||
| } | ||
|
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| podmanStatus, driverStatus := toStatusKV(status) | ||
|
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| podmanContainerText := "Podman Containers" | ||
| data = &pageData{ | ||
| DisplayName: podmanContainerText, | ||
| ParentContainers: []link{ | ||
| { | ||
| Text: podmanContainerText, | ||
| Link: path.Join(rootDir, PodmanPage), | ||
| }}, | ||
| Subcontainers: subcontainers, | ||
| Root: rootDir, | ||
| DockerStatus: podmanStatus, | ||
| DockerDriverStatus: driverStatus, | ||
| DockerImages: images, | ||
| } | ||
| } else { | ||
| // Scenario for specific container. | ||
| machineInfo, err := m.GetMachineInfo() | ||
| if err != nil { | ||
| http.Error(w, fmt.Sprintf("failed to get machine info: %v", err), http.StatusInternalServerError) | ||
| return | ||
| } | ||
|
|
||
| reqParams := info.ContainerInfoRequest{ | ||
| NumStats: 60, | ||
| } | ||
| cont, err := m.PodmanContainer(containerName[1:], &reqParams) | ||
| if err != nil { | ||
| http.Error(w, fmt.Sprintf("failed to get container %v with error: %v", containerName, err), http.StatusNotFound) | ||
| return | ||
| } | ||
| displayName := getContainerDisplayName(cont.ContainerReference) | ||
|
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| var parentContainers []link | ||
| parentContainers = append(parentContainers, link{ | ||
| Text: "Podman Containers", | ||
| Link: path.Join(rootDir, PodmanPage), | ||
| }) | ||
| parentContainers = append(parentContainers, link{ | ||
| Text: displayName, | ||
| Link: path.Join(rootDir, PodmanPage, dockerutil.ContainerNameToId(cont.Name)), | ||
| }) | ||
|
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| data = &pageData{ | ||
| DisplayName: displayName, | ||
| ContainerName: escapeContainerName(cont.Name), | ||
| ParentContainers: parentContainers, | ||
| Spec: cont.Spec, | ||
| Stats: cont.Stats, | ||
| MachineInfo: machineInfo, | ||
| ResourcesAvailable: cont.Spec.HasCpu || cont.Spec.HasMemory || cont.Spec.HasNetwork, | ||
| CpuAvailable: cont.Spec.HasCpu, | ||
| MemoryAvailable: cont.Spec.HasMemory, | ||
| NetworkAvailable: cont.Spec.HasNetwork, | ||
| FsAvailable: cont.Spec.HasFilesystem, | ||
| CustomMetricsAvailable: cont.Spec.HasCustomMetrics, | ||
| Root: rootDir, | ||
| } | ||
| } | ||
|
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| err := pageTemplate.Execute(w, data) | ||
| if err != nil { | ||
| klog.Errorf("Failed to apply template: %s", err) | ||
| } | ||
|
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| klog.V(5).Infof("Request took %s", time.Since(start)) | ||
| } |
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