我是k8的新手，正在尝试为k8s设置普罗米修斯监控。我用了 “帮助安装”以设置普罗米修斯。现在：
[centos@k8smaster1 ~]$ kubectl get pod -n monitoring
NAME READY STATUS RESTARTS AGE
prometheus-alertmanager-7757d759b8-x6bd7 0/2 Pending 0 44m
prometheus-kube-state-metrics-7f85b5d86c-cq9kr 1/1 Running 0 44m
prometheus-node-exporter-5rz2k 1/1 Running 0 44m
prometheus-pushgateway-5b8465d455-672d2 1/1 Running 0 44m
prometheus-server-7f8b5fc64b-w626v 0/2 Pending 0 44m
[centos@k8smaster1 ~]$ kubectl get pv
prometheus-alertmanager 3Gi RWX Retain Available 22m
prometheus-server 12Gi RWX Retain Available 30m
[centos@k8smaster1 ~]$ kubectl get pvc -n monitoring
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
prometheus-alertmanager Pending 20m
prometheus-server Pending 20m
[centos@k8smaster1 ~]$ kubectl describe pvc prometheus-alertmanager -n monitoring
Name: prometheus-alertmanager
Namespace: monitoring
StorageClass:
Status: Pending
Volume:
Labels: app=prometheus
chart=prometheus-8.15.0
component=alertmanager
heritage=Tiller
release=prometheus
Annotations: <none>
Finalizers: [kubernetes.io/pvc-protection]
Capacity:
Access Modes:
VolumeMode: Filesystem
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal FailedBinding 116s (x83 over 22m) persistentvolume-controller no persistent volumes available for this claim and no storage class is set
Mounted By: prometheus-alertmanager-7757d759b8-x6bd7
我希望豆荚进入运行状态
!!!更新!!!
NAME STATUS VOLUME CAPACITY ACCESS MODES STORAGECLASS AGE
prometheus-alertmanager Pending local-storage 4m29s
prometheus-server Pending local-storage 4m29s
[centos@k8smaster1 prometheus_pv_storage]$ kubectl describe pvc prometheus-server -n monitoring
Name: prometheus-server
Namespace: monitoring
StorageClass: local-storage
Status: Pending
Volume:
Labels: app=prometheus
chart=prometheus-8.15.0
component=server
heritage=Tiller
release=prometheus
Annotations: <none>
Finalizers: [kubernetes.io/pvc-protection]
Capacity:
Access Modes:
VolumeMode: Filesystem
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal WaitForFirstConsumer 11s (x22 over 4m59s) persistentvolume-controller waiting for first consumer to be created before binding
Mounted By: prometheus-server-7f8b5fc64b-bqf42
!! UPDATE-2 !!
[centos@k8smaster1 ~]$ kubectl get pods prometheus-server-7f8b5fc64b-bqf42 -n monitoring -o yaml
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: "2019-08-18T16:10:54Z"
generateName: prometheus-server-7f8b5fc64b-
labels:
app: prometheus
chart: prometheus-8.15.0
component: server
heritage: Tiller
pod-template-hash: 7f8b5fc64b
release: prometheus
name: prometheus-server-7f8b5fc64b-bqf42
namespace: monitoring
ownerReferences:
- apiVersion: apps/v1
blockOwnerDeletion: true
controller: true
kind: ReplicaSet
name: prometheus-server-7f8b5fc64b
uid: c1979bcb-c1d2-11e9-819d-fa163ebb8452
resourceVersion: "2461054"
selfLink: /api/v1/namespaces/monitoring/pods/prometheus-server-7f8b5fc64b-bqf42
uid: c19890d1-c1d2-11e9-819d-fa163ebb8452
spec:
containers:
- args:
- --volume-dir=/etc/config
- --webhook-url=http://127.0.0.1:9090/-/reload
image: jimmidyson/configmap-reload:v0.2.2
imagePullPolicy: IfNotPresent
name: prometheus-server-configmap-reload
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- mountPath: /etc/config
name: config-volume
readOnly: true
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: prometheus-server-token-7h2df
readOnly: true
- args:
- --storage.tsdb.retention.time=15d
- --config.file=/etc/config/prometheus.yml
- --storage.tsdb.path=/data
- --web.console.libraries=/etc/prometheus/console_libraries
- --web.console.templates=/etc/prometheus/consoles
- --web.enable-lifecycle
image: prom/prometheus:v2.11.1
imagePullPolicy: IfNotPresent
livenessProbe:
failureThreshold: 3
httpGet:
path: /-/healthy
port: 9090
scheme: HTTP
initialDelaySeconds: 30
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 30
name: prometheus-server
ports:
- containerPort: 9090
protocol: TCP
readinessProbe:
failureThreshold: 3
httpGet:
path: /-/ready
port: 9090
scheme: HTTP
initialDelaySeconds: 30
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 30
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
volumeMounts:
- mountPath: /etc/config
name: config-volume
- mountPath: /data
name: storage-volume
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: prometheus-server-token-7h2df
readOnly: true
dnsPolicy: ClusterFirst
enableServiceLinks: true
priority: 0
restartPolicy: Always
schedulerName: default-scheduler
securityContext:
fsGroup: 65534
runAsGroup: 65534
runAsNonRoot: true
runAsUser: 65534
serviceAccount: prometheus-server
serviceAccountName: prometheus-server
terminationGracePeriodSeconds: 300
tolerations:
- effect: NoExecute
key: node.kubernetes.io/not-ready
operator: Exists
tolerationSeconds: 300
- effect: NoExecute
key: node.kubernetes.io/unreachable
operator: Exists
tolerationSeconds: 300
volumes:
- configMap:
defaultMode: 420
name: prometheus-server
name: config-volume
- name: storage-volume
persistentVolumeClaim:
claimName: prometheus-server
- name: prometheus-server-token-7h2df
secret:
defaultMode: 420
secretName: prometheus-server-token-7h2df
status:
conditions:
- lastProbeTime: null
lastTransitionTime: "2019-08-18T16:10:54Z"
message: '0/2 nodes are available: 1 node(s) didn''t find available persistent
volumes to bind, 1 node(s) had taints that the pod didn''t tolerate.'
reason: Unschedulable
status: "False"
type: PodScheduled
phase: Pending
qosClass: BestEffort
我还创建了卷并分配给本地存储
[centos@k8smaster1 prometheus_pv]$ kubectl get pv -n monitoring
prometheus-alertmanager 3Gi RWX Retain Available local-storage 2d19h
prometheus-server 12Gi RWX Retain Available local-storage 2d19h
答案 0 :(得分：0)
Prometheus将尝试使用accessModes作为ReadWriteOnce创建PersiatentVolumeClaims，仅当accessmodes相同时，PVC才会与PersistentVolume匹配。将PV的访问模式更改为ReadWriteOnce，它应该可以工作。