[root@s2 123]# kubectl get pods -n ingress-nginx

NAME                                       READY   STATUS             RESTARTS   AGE
nginx-ingress-controller-c78dbfdb8-kspcr   0/1     CrashLoopBackOff   1          26s
[root@s2 123]#
[root@s2 123]#
[root@s2 123]# kubectl logs nginx-ingress-controller-c78dbfdb8-kspcr -n ingress-nginx
-------------------------------------------------------------------------------
NGINX Ingress controller
  Release:       0.26.2
  Build:         git-bde101c57
  Repository:    https://github.com/aledbf/ingress-nginx
  nginx version: openresty/1.15.8.2

-------------------------------------------------------------------------------

W0106 13:49:46.868512       6 flags.go:243] SSL certificate chain completion is disabled (--enable-ssl-chain-completion=false)
W0106 13:49:46.869051       6 client_config.go:541] Neither --kubeconfig nor --master was specified.  Using the inClusterConfig.  This might not work.
I0106 13:49:46.869891       6 main.go:182] Creating API client for https://10.1.0.1:443
I0106 13:49:46.901687       6 main.go:226] Running in Kubernetes cluster version v1.17 (v1.17.0) - git (clean) commit 70132b0f130acc0bed193d9ba59dd186f0e634cf - platform linux/amd64
F0106 13:49:47.346088       6 ssl.go:389] unexpected error storing fake SSL Cert: could not create PEM certificate file /etc/ingress-controller/ssl/default-fake-certificate.pem: open /etc/ingress-controller/ssl/default-fake-certificate.pem: permission denied

报错如下

unexpected error storing fake SSL Cert: could not create PEM certificate file /etc/ingress-controller/ssl/default-fake-certificate.pem: open /etc/ingress-controller/ssl/default-fake-certificate.pem: permission denied

之前在网上查找资料花了10元没有解决问题，终于在我的研究下解决了这个问题

说明下我的环境

[root@s1 ~]# docker --version
Docker version 19.03.5, build 633a0ea

[root@s1 ~]# uname  -a
Linux s1 3.10.0-1062.9.1.el7.x86_64 #1 SMP Fri Dec 6 15:49:49 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

[root@s1 ~]# docker images
REPOSITORY                                                        TAG                 IMAGE ID            CREATED             SIZE
registry.aliyuncs.com/google_containers/kube-proxy                v1.17.0             7d54289267dc        4 weeks ago         116MB
registry.aliyuncs.com/google_containers/kube-scheduler            v1.17.0             78c190f736b1        4 weeks ago         94.4MB
registry.aliyuncs.com/google_containers/kube-apiserver            v1.17.0             0cae8d5cc64c        4 weeks ago         171MB
registry.aliyuncs.com/google_containers/kube-controller-manager   v1.17.0             5eb3b7486872        4 weeks ago         161MB
registry.aliyuncs.com/google_containers/coredns                   1.6.5               70f311871ae1        2 months ago        41.6MB
registry.aliyuncs.com/google_containers/etcd                      3.4.3-0             303ce5db0e90        2 months ago        288MB
quay.io/coreos/flannel                                            v0.11.0-amd64       ff281650a721        11 months ago       52.6MB
registry.aliyuncs.com/google_containers/pause                     3.1                 da86e6ba6ca1        2 years ago         742kB

查看了许多资料 发现新版本的权限比老板本多许多导致，以前老板的本的方法在这里不管用了 

发一份我的配置文件 这个可以完美运行 不会报错

vim mandatory.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
 
kind: ConfigMap
apiVersion: v1
metadata:
  name: nginx-configuration
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: tcp-services
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
kind: ConfigMap
apiVersion: v1
metadata:
  name: udp-services
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: nginx-ingress-serviceaccount
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
 
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  name: nginx-ingress-clusterrole
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
rules:
  - apiGroups:
      - ""
    resources:
      - configmaps
      - endpoints
      - nodes
      - pods
      - secrets
    verbs:
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - nodes
    verbs:
      - get
  - apiGroups:
      - ""
    resources:
      - services
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - ""
    resources:
      - events
    verbs:
      - create
      - patch
  - apiGroups:
      - "extensions"
      - "networking.k8s.io"
    resources:
      - ingresses
    verbs:
      - get
      - list
      - watch
  - apiGroups:
      - "extensions"
      - "networking.k8s.io"
    resources:
      - ingresses/status
    verbs:
      - update
 
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: Role
metadata:
  name: nginx-ingress-role
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
rules:
  - apiGroups:
      - ""
    resources:
      - configmaps
      - pods
      - secrets
      - namespaces
    verbs:
      - get
  - apiGroups:
      - ""
    resources:
      - configmaps
    resourceNames:
      # Defaults to "<election-id>-<ingress-class>"
      # Here: "<ingress-controller-leader>-<nginx>"
      # This has to be adapted if you change either parameter
      # when launching the nginx-ingress-controller.
      - "ingress-controller-leader-nginx"
    verbs:
      - get
      - update
  - apiGroups:
      - ""
    resources:
      - configmaps
    verbs:
      - create
  - apiGroups:
      - ""
    resources:
      - endpoints
    verbs:
      - get
 
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: RoleBinding
metadata:
  name: nginx-ingress-role-nisa-binding
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: nginx-ingress-role
subjects:
  - kind: ServiceAccount
    name: nginx-ingress-serviceaccount
    namespace: ingress-nginx
 
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: nginx-ingress-clusterrole-nisa-binding
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: nginx-ingress-clusterrole
subjects:
  - kind: ServiceAccount
    name: nginx-ingress-serviceaccount
    namespace: ingress-nginx
 
---
 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-ingress-controller
  namespace: ingress-nginx
  labels:
    app.kubernetes.io/name: ingress-nginx
    app.kubernetes.io/part-of: ingress-nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/name: ingress-nginx
      app.kubernetes.io/part-of: ingress-nginx
  template:
    metadata:
      labels:
        app.kubernetes.io/name: ingress-nginx
        app.kubernetes.io/part-of: ingress-nginx
      annotations:
        prometheus.io/port: "10254"
        prometheus.io/scrape: "true"
    spec:
      # wait up to five minutes for the drain of connections
      terminationGracePeriodSeconds: 300
      serviceAccountName: nginx-ingress-serviceaccount
      containers:
        - name: nginx-ingress-controller
          image: registry.aliyuncs.com/google_containers/nginx-ingress-controller:0.26.1
          args:
            - /nginx-ingress-controller
            - --configmap=$(POD_NAMESPACE)/nginx-configuration
            - --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services
            - --udp-services-configmap=$(POD_NAMESPACE)/udp-services
            - --publish-service=$(POD_NAMESPACE)/ingress-nginx
            - --annotations-prefix=nginx.ingress.kubernetes.io
          securityContext:
            allowPrivilegeEscalation: true
            capabilities:
              drop:
                - ALL
              add:
                - NET_BIND_SERVICE
            # www-data -> 33
            runAsUser: 33
          env:
            - name: POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
          ports:
            - name: http
              containerPort: 80
            - name: https
              containerPort: 443
          livenessProbe:
            failureThreshold: 3
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            initialDelaySeconds: 10
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 10
          readinessProbe:
            failureThreshold: 3
            httpGet:
              path: /healthz
              port: 10254
              scheme: HTTP
            periodSeconds: 10
            successThreshold: 1
            timeoutSeconds: 10
          lifecycle:
            preStop:
              exec:
                command:
                  - /wait-shutdown
 
---

  kubectl create -f mandatory.yaml

[root@s2 123]# kubectl get pod -n ingress-nginx
NAME                                        READY   STATUS    RESTARTS   AGE
nginx-ingress-controller-799d47fc89-88hql   1/1     Running   0          3h29m

最后搞定!

最后贴上我买教训的教程 

服务器放777权限 可以的啊！！！

最后如果也解决了你的问题 麻烦给点鼓励 谢谢~