ImagePullBackOff 使用 Helm Chart 在 OpenShift 中部署应用程序

问题描述 投票：0回答：1

我有一个使用 Docker 成功运行的 Remix 应用程序。然后，我想使用 OpenShift 和 HelmChart 在 OpenShift 中部署应用程序。但是，我收到错误 ImagePullBackOff 并且无法拉取图像：

oc describe pod remixapp-web-869c55d88c-djb7p
Name:                 remixapp-web-869c55d88c-djb7p
Namespace:            johndoe-dev
Priority:             -3
Priority Class Name:  sandbox-users-pods
Service Account:      default
Node:                 ip-10-0-203-61.ec2.internal/10.0.203.61
Start Time:           Thu, 07 Mar 2024 14:58:23 -0800
Labels:               app=remixapp-web
                      pod-template-hash=869c55d88c
Annotations:          k8s.ovn.org/pod-networks:
                        {"default":{"ip_addresses":["10.128.42.100/23"],"mac_address":"0a:58:0a:80:2a:64","gateway_ips":["10.128.42.1"],"routes":[{"dest":"10.128....
                      k8s.v1.cni.cncf.io/network-status:
                        [{
                            "name": "ovn-kubernetes",
                            "interface": "eth0",
                            "ips": [
                                "10.128.42.100"
                            ],
                            "mac": "0a:58:0a:80:2a:64",
                            "default": true,
                            "dns": {}
                        }]
                      openshift.io/scc: restricted-v2
                      seccomp.security.alpha.kubernetes.io/pod: runtime/default
Status:               Pending
SeccompProfile:       RuntimeDefault
IP:                   10.128.42.100
IPs:
  IP:           10.128.42.100
Controlled By:  ReplicaSet/remixapp-web-869c55d88c
Containers:
  remixapp-web:
    Container ID:
    Image:          image-registry.openshift-image-registry.svc:5000/johndoe-dev/remixapp-web:develop
    Image ID:
    Port:           <none>
    Host Port:      <none>
    State:          Waiting
      Reason:       ImagePullBackOff
    Ready:          False
    Restart Count:  0
    Limits:
      cpu:     250m
      memory:  512Mi
    Requests:
      cpu:     150m
      memory:  512Mi
    Environment Variables from:
      remixapp-web-config  Secret  Optional: false
    Environment:           <none>
    Mounts:
      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-wj8gl (ro)
Conditions:
  Type              Status
  Initialized       True
  Ready             False
  ContainersReady   False
  PodScheduled      True
Volumes:
  kube-api-access-wj8gl:
    Type:                    Projected (a volume that contains injected data from multiple sources)
    TokenExpirationSeconds:  3607
    ConfigMapName:           kube-root-ca.crt
    ConfigMapOptional:       <nil>
    DownwardAPI:             true
    ConfigMapName:           openshift-service-ca.crt
    ConfigMapOptional:       <nil>
QoS Class:                   Burstable
Node-Selectors:              <none>
Tolerations:                 node.kubernetes.io/memory-pressure:NoSchedule op=Exists
                             node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
                             node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
  Type     Reason          Age                From               Message
  ----     ------          ----               ----               -------
  Normal   Scheduled       74s                default-scheduler  Successfully assigned johndoe-dev/remixapp-web-869c55d88c-djb7p to ip-10-0-203-61.ec2.internal
  Normal   AddedInterface  74s                multus             Add eth0 [10.128.42.100/23] from ovn-kubernetes
  Normal   Pulling         31s (x3 over 74s)  kubelet            Pulling image "image-registry.openshift-image-registry.svc:5000/johndoe-dev/remixapp-web:develop"
  Warning  Failed          31s (x3 over 74s)  kubelet            Failed to pull image "image-registry.openshift-image-registry.svc:5000/johndoe-dev/remixapp-web:develop": rpc error: code = Unknown desc = reading manifest develop in image-registry.openshift-image-registry.svc:5000/johndoe-dev/remixapp-web: name unknown
  Warning  Failed          31s (x3 over 74s)  kubelet            Error: ErrImagePull
  Normal   BackOff         3s (x5 over 74s)   kubelet            Back-off pulling image "image-registry.openshift-image-registry.svc:5000/johndoe-dev/remixapp-web:develop"
  Warning  Failed          3s (x5 over 74s)   kubelet            Error: ImagePullBackOff

我创建了一个新图表 

helm create remixapp
并使用以下内容修改了文件 value.yaml 和 deployment.yaml：

values.yaml

app_name: remixapp
replicas: 1
image_stream_tag: develop
namespace_env: arturoreyeslopez-dev
limits_cpu: 250m
limits_memory: 512Mi
requests_cpu: 150m
requests_memory: 512Mi
cluster: silver
dockerhost: image-registry.openshift-image-registry.svc:5000
service:
  type: ClusterIP
  port: 80

模板/deployment.yaml：

---
kind: Deployment
apiVersion: apps/v1
metadata:
  annotations:
    deployment.kubernetes.io/revision: '8'
    image.openshift.io/triggers: |-
      [
        {
          "from": {
            "kind": "ImageStreamTag",
            "namespace": "{{ .Values.namespace_env }}",
            "name": "{{ .Values.app_name }}-web:{{ .Values.image_stream_tag }}"
          },
          "fieldPath": "spec.template.spec.containers[0].image"
        }
      ]
  name: {{ .Values.app_name }}-web
  namespace: {{ .Values.namespace_env }}
  labels:
    app: {{ .Values.app_name }}-web
spec:
  replicas: {{ .Values.replicas }}
  selector:
    matchLabels:
      app: {{ .Values.app_name }}-web
  template:
    metadata:
      labels:
        app: {{ .Values.app_name }}-web
    spec:
      containers:
        - name: {{ .Values.app_name }}-web
          image: {{ .Values.dockerhost }}/{{ .Values.namespace_env }}/{{ .Values.app_name }}-web:{{ .Values.image_stream_tag }}
          resources:
            limits:
              cpu: {{ .Values.limits_cpu }}
              memory: {{ .Values.limits_memory }}
            requests:
              cpu: {{ .Values.requests_cpu}}
              memory: {{ .Values.requests_memory }}
          terminationMessagePath: /dev/termination-log
          envFrom:
            - secretRef:
                name: {{ .Values.app_name }}-web-config
          imagePullPolicy: IfNotPresent
          terminationMessagePolicy: File
          #volumeMounts:
          #  - name: {{ .Values.app_name }}-nginx-cache
          #    mountPath: /var/cache/nginx
      restartPolicy: Always
      serviceAccount: default
      #volumes:
      #  - name: {{ .Values.app_name }}-nginx-cache
      #    emptyDir: {}
  strategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 25%
      maxSurge: 25%
  revisionHistoryLimit: 5
  progressDeadlineSeconds: 600

模板/services.yaml：

kind: Service
apiVersion: v1
metadata:
  name: {{ .Values.app_name }}-web
  labels:
    app: {{ .Values.app_name }}-web
    name: {{ .Values.app_name }}-web
spec:
  ports:
  - name: 8080-tcp
    port: 80
    protocol: TCP
    targetPort: 8080
  selector:
    app: {{ .Values.app_name }}-web
  sessionAffinity: None
  type: ClusterIP

你知道为什么图片拉不出来吗？或者我可以检查是否有任何线索可以根据我当前的配置找出为什么会发生此错误？

非常感谢您的帮助:)

openshift helm3
1个回答
0
投票

发布您如何发布图像的详细信息。

关键是

Failed to pull image "image-registry.openshift-image-registry.svc:5000/johndoe-dev/remixapp-web:develop": rpc error: code = Unknown desc = reading manifest develop in image-registry.openshift-image-registry.svc:5000/johndoe-dev/remixapp-web: name unknown

图像可能没有开发标签。

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