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Merge pull request #21 from prometheus-operator/chore/adding-node-exp…
…orter [CHORE] adding node exporter to the create stack cmd
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| // Copyright 2024 The prometheus-operator 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. | ||
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| package builder | ||
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| import ( | ||
| "fmt" | ||
|
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| monitoringv1 "github.com/prometheus-operator/prometheus-operator/pkg/client/applyconfiguration/monitoring/v1" | ||
| appsv1 "k8s.io/api/apps/v1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/api/resource" | ||
| "k8s.io/apimachinery/pkg/util/intstr" | ||
| applyCofongiAppsv1 "k8s.io/client-go/applyconfigurations/apps/v1" | ||
| applyConfigCorev1 "k8s.io/client-go/applyconfigurations/core/v1" | ||
| applyConfigMetav1 "k8s.io/client-go/applyconfigurations/meta/v1" | ||
| "k8s.io/utils/ptr" | ||
| ) | ||
|
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| const LatestNodeExporterVersion = "1.8.1" | ||
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| type NodeExporterBuilder struct { | ||
| labels map[string]string | ||
| labelSelectors map[string]string | ||
| namespace string | ||
| manifests NodexExporterManifests | ||
| version string | ||
| } | ||
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| type NodexExporterManifests struct { | ||
| ServiceAccount *applyConfigCorev1.ServiceAccountApplyConfiguration | ||
| DaemonSet *applyCofongiAppsv1.DaemonSetApplyConfiguration | ||
| PodMonitor *monitoringv1.PodMonitorApplyConfiguration | ||
| } | ||
|
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| func NewNodeExporterBuilder(namespace, version string) *NodeExporterBuilder { | ||
| return &NodeExporterBuilder{ | ||
| namespace: namespace, | ||
| version: version, | ||
| labels: map[string]string{ | ||
| "app.kubernetes.io/name": "node-exporter", | ||
| }, | ||
| labelSelectors: map[string]string{ | ||
| "app.kubernetes.io/name": "node-exporter", | ||
| }, | ||
| } | ||
| } | ||
|
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| func (n *NodeExporterBuilder) WithServiceAccount() *NodeExporterBuilder { | ||
| n.manifests.ServiceAccount = &applyConfigCorev1.ServiceAccountApplyConfiguration{ | ||
| TypeMetaApplyConfiguration: applyConfigMetav1.TypeMetaApplyConfiguration{ | ||
| Kind: ptr.To("ServiceAccount"), | ||
| APIVersion: ptr.To("v1"), | ||
| }, | ||
| ObjectMetaApplyConfiguration: &applyConfigMetav1.ObjectMetaApplyConfiguration{ | ||
| Name: ptr.To("node-exporter"), | ||
| Labels: n.labels, | ||
| Namespace: ptr.To(n.namespace), | ||
| }, | ||
| } | ||
| return n | ||
| } | ||
|
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| func (n *NodeExporterBuilder) WithPodMonitor() *NodeExporterBuilder { | ||
| n.manifests.PodMonitor = &monitoringv1.PodMonitorApplyConfiguration{ | ||
| TypeMetaApplyConfiguration: applyConfigMetav1.TypeMetaApplyConfiguration{ | ||
| Kind: ptr.To("PodMonitor"), | ||
| APIVersion: ptr.To("monitoring.coreos.com/v1"), | ||
| }, | ||
| ObjectMetaApplyConfiguration: &applyConfigMetav1.ObjectMetaApplyConfiguration{ | ||
| Name: ptr.To("node-exporter"), | ||
| Labels: n.labels, | ||
| Namespace: ptr.To(n.namespace), | ||
| }, | ||
| Spec: &monitoringv1.PodMonitorSpecApplyConfiguration{ | ||
| JobLabel: ptr.To("app.kubernetes.io/name"), | ||
| Selector: &applyConfigMetav1.LabelSelectorApplyConfiguration{ | ||
| MatchLabels: n.labelSelectors, | ||
| }, | ||
| NamespaceSelector: &monitoringv1.NamespaceSelectorApplyConfiguration{ | ||
| MatchNames: []string{n.namespace}, | ||
| }, | ||
| PodMetricsEndpoints: []monitoringv1.PodMetricsEndpointApplyConfiguration{ | ||
| { | ||
| Port: ptr.To("metrics"), | ||
| HonorLabels: ptr.To(true), | ||
| FilterRunning: ptr.To(true), | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| return n | ||
| } | ||
|
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| var nodeExporterArgs = []string{ | ||
| "--web.listen-address=0.0.0.0:9100", | ||
| "--path.sysfs=/host/sys", | ||
| "--path.rootfs=/host/root", | ||
| "--path.udev.data=/host/root/run/udev/data", | ||
| "--no-collector.wifi", | ||
| "--no-collector.hwmon", | ||
| "--no-collector.btrfs", | ||
| "--collector.filesystem.mount-points-exclude=^/(dev|proc|sys|run/k3s/containerd/.+|var/lib/docker/.+|var/lib/kubelet/pods/.+)($|/)", | ||
| "--collector.netclass.ignored-devices=^(veth.*|[a-f0-9]{15})$", | ||
| "--collector.netdev.device-exclude=^(veth.*|[a-f0-9]{15})$", | ||
| } | ||
|
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| func (n *NodeExporterBuilder) WithDaemonSet() *NodeExporterBuilder { | ||
| n.manifests.DaemonSet = &applyCofongiAppsv1.DaemonSetApplyConfiguration{ | ||
| TypeMetaApplyConfiguration: applyConfigMetav1.TypeMetaApplyConfiguration{ | ||
| Kind: ptr.To("DaemonSet"), | ||
| APIVersion: ptr.To("apps/v1"), | ||
| }, | ||
| ObjectMetaApplyConfiguration: &applyConfigMetav1.ObjectMetaApplyConfiguration{ | ||
| Name: ptr.To("node-exporter"), | ||
| Labels: n.labels, | ||
| Namespace: ptr.To(n.namespace), | ||
| }, | ||
| Spec: &applyCofongiAppsv1.DaemonSetSpecApplyConfiguration{ | ||
| Selector: &applyConfigMetav1.LabelSelectorApplyConfiguration{ | ||
| MatchLabels: n.labelSelectors, | ||
| }, | ||
| Template: &applyConfigCorev1.PodTemplateSpecApplyConfiguration{ | ||
| ObjectMetaApplyConfiguration: &applyConfigMetav1.ObjectMetaApplyConfiguration{ | ||
| Labels: n.labelSelectors, | ||
| }, | ||
| Spec: &applyConfigCorev1.PodSpecApplyConfiguration{ | ||
| ServiceAccountName: n.manifests.ServiceAccount.Name, | ||
| AutomountServiceAccountToken: ptr.To(true), | ||
| Containers: []applyConfigCorev1.ContainerApplyConfiguration{ | ||
| { | ||
| Name: ptr.To("node-exporter"), | ||
| Image: ptr.To(fmt.Sprintf("quay.io/prometheus/node-exporter:v%s", n.version)), | ||
| Args: nodeExporterArgs, | ||
| Ports: []applyConfigCorev1.ContainerPortApplyConfiguration{ | ||
| { | ||
| Name: ptr.To("metrics"), | ||
| ContainerPort: ptr.To(int32(9100)), | ||
| Protocol: ptr.To(corev1.ProtocolTCP), | ||
| }, | ||
| }, | ||
| Resources: &applyConfigCorev1.ResourceRequirementsApplyConfiguration{ | ||
| Requests: &corev1.ResourceList{ | ||
| "cpu": resource.MustParse("200m"), | ||
| "memory": resource.MustParse("200Mi"), | ||
| }, | ||
| Limits: &corev1.ResourceList{ | ||
| "cpu": resource.MustParse("200m"), | ||
| "memory": resource.MustParse("200Mi"), | ||
| }, | ||
| }, | ||
| SecurityContext: &applyConfigCorev1.SecurityContextApplyConfiguration{ | ||
| AllowPrivilegeEscalation: ptr.To(false), | ||
| ReadOnlyRootFilesystem: ptr.To(true), | ||
| Capabilities: &applyConfigCorev1.CapabilitiesApplyConfiguration{ | ||
| Add: []corev1.Capability{ | ||
| "SYS_TIME", | ||
| }, | ||
| Drop: []corev1.Capability{ | ||
| "ALL", | ||
| }, | ||
| }, | ||
| }, | ||
| VolumeMounts: []applyConfigCorev1.VolumeMountApplyConfiguration{ | ||
| { | ||
| MountPath: ptr.To("/host/sys"), | ||
| MountPropagation: ptr.To(corev1.MountPropagationHostToContainer), | ||
| Name: ptr.To("sys"), | ||
| ReadOnly: ptr.To(true), | ||
| }, | ||
| { | ||
| MountPath: ptr.To("/host/root"), | ||
| MountPropagation: ptr.To(corev1.MountPropagationHostToContainer), | ||
| Name: ptr.To("root"), | ||
| ReadOnly: ptr.To(true), | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| HostNetwork: ptr.To(true), | ||
| HostPID: ptr.To(true), | ||
| NodeSelector: map[string]string{ | ||
| "kubernetes.io/os": "linux", | ||
| }, | ||
| PriorityClassName: ptr.To("system-node-critical"), | ||
| SecurityContext: &applyConfigCorev1.PodSecurityContextApplyConfiguration{ | ||
| RunAsGroup: ptr.To(int64(65534)), | ||
| RunAsNonRoot: ptr.To(true), | ||
| RunAsUser: ptr.To(int64(65534)), | ||
| }, | ||
| Tolerations: []applyConfigCorev1.TolerationApplyConfiguration{ | ||
| { | ||
| Operator: ptr.To(corev1.TolerationOpExists), | ||
| }, | ||
| }, | ||
| Volumes: []applyConfigCorev1.VolumeApplyConfiguration{ | ||
| { | ||
| Name: ptr.To("sys"), | ||
| VolumeSourceApplyConfiguration: applyConfigCorev1.VolumeSourceApplyConfiguration{ | ||
| HostPath: &applyConfigCorev1.HostPathVolumeSourceApplyConfiguration{ | ||
| Path: ptr.To("/sys"), | ||
| }, | ||
| }, | ||
| }, | ||
| { | ||
| Name: ptr.To("root"), | ||
| VolumeSourceApplyConfiguration: applyConfigCorev1.VolumeSourceApplyConfiguration{ | ||
| HostPath: &applyConfigCorev1.HostPathVolumeSourceApplyConfiguration{ | ||
| Path: ptr.To("/"), | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| UpdateStrategy: &applyCofongiAppsv1.DaemonSetUpdateStrategyApplyConfiguration{ | ||
| Type: ptr.To(appsv1.RollingUpdateDaemonSetStrategyType), | ||
| RollingUpdate: &applyCofongiAppsv1.RollingUpdateDaemonSetApplyConfiguration{ | ||
| MaxUnavailable: ptr.To(intstr.FromString("10%")), | ||
| }, | ||
| }, | ||
| }, | ||
| } | ||
| return n | ||
| } | ||
|
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| func (n *NodeExporterBuilder) Build() NodexExporterManifests { | ||
| return n.manifests | ||
| } |
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