The local docker registration certificate docker login connects to the harbor warehouse, and uses shell scripts to pull, tag, and push a large number of images to the private harbor warehouse.

1. Local docker registration certificate docker login connects to harbor warehouse:

We use docker login/push/pull to deal with Harbor, upload and download images, etc. However, errors such as x509: certificate signed by unknown authority may occur.

[root@test01 harbor.dev]# docker login harbor.dev
Authenticating with existing credentials…
Login did not succeed, error: Error response from daemon: Get https://harbor.dev/v2/: x509: certificate signed by unknown authority
Username (admin): admin
Password:
Error response from daemon: Get https://harbor.dev/v2/: x509: certificate signed by unknown authority

At this time, according to the official docker https://docs.docker.com/engine/security/certificates/ , the client needs to use tls to communicate with Harbor and uses a self-signed certificate, so a directory must be created: /etc/docker/certs .d, create a directory of signed domain names in this directory, then the entire directory is: /etc/docker/certs.d/xxxx（harbor域名）, and then copy harbor's certificate ca.crt to this directory.
Insert image description here

2. Use shell scripts to pull, tag, and push a large number of images to the private harbor warehouse

#!/bin/bash

while IFS= read -r line; do
  image_name=$(echo "$line" | awk '{print $1}')

  new_name=$(echo "$line" | awk '{print $2}' | tr -d '\r')

  docker pull "$image_name"
  docker tag "$image_name" "$new_name"
  docker push "$new_name"

  echo "Pulled, tagged, and pushed $image_name as $new_name"
done < images.txt

As shown above, we first need to prepare an images.txt which includes all download image names and upload names, as shown below. Each line includes image_name and new_name, separated by spaces.

istio/proxyv2:1.14.1 harbor.dev/cube_studio/istio_proxyv2:1.14.1
istio/pilot:1.14.1 harbor.dev/cube_studio/pilot:1.14.1
mysql:5.7 harbor.dev/cube_studio/

Of course, the key to the above script is to obtain image_name and new_name. If new_name can be modified based on image_name, you can also change the script to get a new_name that suits you. The following is for reference.

  #images.txt每行只有image_name，tr -d '\r'去掉换行符
  image_name=$(echo "$line" | awk '{print $1}' | tr -d '\r')
  
  #在image_name前加上harbor.dev/hub/
  new_name="harbor.dev/hub/$image_name"
  
  #image_name中的ccr.ccs.tencentyun.com/hub替换为harbor.dev/hub
  new_name=$(echo "$image_name" | sed 's/ccr.ccs.tencentyun.com\/hub/harbor.dev\/hub/g')

Paste the data in the Excel table into Notepad, and leave a space between each column

You can combine all the data you need into one column in EXECL and then export it.

Assume that your original data has two columns AB, enter the formula in cell C1: =A1&" "&B1, use the fill handle to copy the formula downward, and then paste column C into the txt document, that is, the distance between each column is one space.