問題：Kubernetes創建Pod失敗，無法獲取image
Failed create pod sandbox: rpc error: code = Unknown desc = failed pulling image "harbor.od.com/public/pause:latest": Error response from daemon: Get http://harbor.od.com/v2/public/pause/manifests/latest: Get http://harbor.od.com:180/service/token?scope=repository%3Apublic%2Fpause%3Apull&service=harbor-registry: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers
環境：
harbor.od.com二進制包安裝，使用docker-compose啟動，
harbor.yaml配置port：180
然后通過部署nginx，反向到后端harbor上
故障排查：
1.使用docker pull 倉庫鏡像也無法獲取
Error response from daemon: Get http://harbor.od.com/v2/public/pause/manifests/latest: Get http://harbor.od.com:180/service/token?scope=repository%3Apublic%2Fpaue%3Apull&service=harbor-registry: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
2.使用docker loginx登錄Harbor
Error response from daemon: Get https://harbor,od,com/v2/: dial tcp: lookup harbor,od,com: no such host
3.修改成使用IP的方式登錄Harbor
Error response from daemon: Get http://harbor.od.com/v2/: Get http://harbor.od.com:180/service/token?account=admin&client_id=docker&offline_token=true&service=habor-registry: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
分析問題：
docker使用Http請求獲取鏡像，harbor是通過nginx的80埠訪問，但是通過Log上看到的是使用Get方式，另外還要帶有域名加180埠方式驗證，應該是配置問題引起
#https://www.cnblogs.com/liucx/
解決問題：
修改harbor.yml組態檔，取消external_url注釋，設定為：
external_url: http://harbor.od.com:80
然后，docker-compose down停止所有服務，洗掉當前配置目錄：rm -rf ./common/config下配置清單，重新執行install.sh生成配置，即可解決
配置大概解釋：如果使用外部代理就要啟動該項
# Uncomment external_url if you want to enable external proxy
# And when it enabled the hostname will no longer used
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