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部署Docker镜像到Kubernetes Pod时出现HTTP/HTTPS请求错误求助

解决Kubernetes镜像拉取错误:http: server gave HTTP response to HTTPS client

问题背景

拥有无污点的Kubernetes控制平面节点,本地Docker已配置sdmay23-42.ece.iastate.edu:5000为不安全仓库,可正常拉取sdmay23-42.ece.iastate.edu:5000/canvas-lti-frontend:v2镜像并创建容器,但通过YAML部署Pod时出现ImagePullBackOff,错误提示http: server gave HTTP response to HTTPS client。

解决步骤

1. 确保Docker daemon配置生效并重启相关服务

  • 检查/etc/docker/daemon.json,确认包含不安全仓库配置:
    {
      "insecure-registries": ["sdmay23-42.ece.iastate.edu:5000"]
    }
    
  • 重启Docker daemon:
    sudo systemctl restart docker
    
  • 重启kubelet以加载最新配置:
    sudo systemctl restart kubelet
    

2. 验证节点镜像拉取能力

在节点上执行以下命令,确认镜像可正常拉取:

docker pull sdmay23-42.ece.iastate.edu:5000/canvas-lti-frontend:v2

3. 调整Pod镜像拉取策略(可选)

若镜像已存在于节点,可设置imagePullPolicy: IfNotPresent避免重复拉取,修改后的YAML如下:

apiVersion: v1
kind: Pod
metadata:
   name: test-pod
spec:
   containers:
   - name: test-container
     image: sdmay23-42.ece.iastate.edu:5000/canvas-lti-frontend:v2
     imagePullPolicy: IfNotPresent
     ports:
     - containerPort: 6379

重新部署Pod:

sudo kubectl delete pod test-pod
sudo kubectl create -f test-deploy.yaml

4. 针对containerd容器运行时的额外配置(若适用)

若集群使用containerd而非Docker作为容器运行时,需单独配置允许不安全仓库:

  • 编辑/etc/containerd/config.toml,找到[plugins."io.containerd.grpc.v1.cri".registry]段,添加以下配置:
    [plugins."io.containerd.grpc.v1.cri".registry.mirrors]
      [plugins."io.containerd.grpc.v1.cri".registry.mirrors."sdmay23-42.ece.iastate.edu:5000"]
        endpoint = ["http://sdmay23-42.ece.iastate.edu:5000"]
    [plugins."io.containerd.grpc.v1.cri".registry.configs]
      [plugins."io.containerd.grpc.v1.cri".registry.configs."sdmay23-42.ece.iastate.edu:5000".tls]
        insecure_skip_verify = true
    
  • 重启containerd和kubelet:
    sudo systemctl restart containerd
    sudo systemctl restart kubelet
    

内容的提问来源于stack exchange,提问作者Saile

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最近更新时间:2026.08.11 01:20:32