k8s 配置 harbor仓库

1.K8S在默认情况下只能拉取Harbor仓库中的公有镜像，拉取私有镜像会报错：ErrImagePull 或 ImagePullBackOff

2.在每台服务器上配置harbor的地址，修改或创建/etc/docker/daemon.json文件，加入以下配置：

[root@k8s-master01 k8s]# cat /etc/docker/daemon.json
{
 "registry-mirrors":["https://docker.mirrors.ustc.edu.cn/"],
 "exec-opts":["native.cgroupdriver=systemd"],
 "insecure-registries": ["192.168.30.107:5012"]
 }

3.登录harbor 

docker login http://192.168.30.107:5012

4.查看秘钥：

cat /root/.docker/config.json
{
    "auths": {
        "192.168.30.107:5012": {
            "auth": "YWRtaW46SGFyYm9yMTIzNDU="
        }
    }

5.将密钥进行base64加密：

cat /root/.docker/config.json | base64 -w 0
ewoJImF1dGhzIjogewoJCSIxOTIuMTY4LjMwLjEwNzo1MDEyIjogewoJCQkiYXV0aCI6ICJZV1J0YVc0NlNHRnlZbTl5TVRJek5EVT0iCgkJfQoJfQp9

6.创建 harbor_secret.yaml 文件

[root@k8s-master01 k8s]# cat harbor_secret.yml
apiVersion: v1
data:
  .dockerconfigjson: ewoJImF1dGhzIjogewoJCSIxOTIuMTY4LjMwLjEwNzo1MDEyIjogewoJCQkiYXV0aCI6ICJZV1J0YVc0NlNHRnlZbTl5TVRJek5EVT0iCgkJfQoJ
fQp9kind: Secret
metadata:
  name: harbor-login
  namespace: default
type: kubernetes.io/dockerconfigjson

7.创建secret

[root@k8s-master01 ~]# kubectl apply -f harbor_secret.yml
secret/harbor-login created
[root@k8s-master01 ~]# kubectl get secrets
NAME                  TYPE                                  DATA   AGE
default-token-njd5x   kubernetes.io/service-account-token   3      64d
harbor-login          kubernetes.io/dockerconfigjson        1      17s
secret                Opaque                                2      52d

8.在pod的deployement yaml文件中添加如下配置即可，deployement yaml具体使用这里不做详解

[root@k8s-master01 k8s]# cat pipeline.yml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: pipeline
  namespace: default
  labels:
    app: pipeline
spec:
  replicas: 2
  selector:
    matchLabels:
      app: pipeline
  template:
    metadata:
      labels:
        app: pipeline
    spec:
      containers:
      - image: 192.168.30.107:5012/repo/pipeline:v3.0.0
        name: pipeline
        imagePullPolicy: Always
        ports:
        - containerPort: 8080
          protocol: TCP
      imagePullSecrets:
      - name: harbor-login