docker registry 镜像同步的实现思路

# variables
$srcRegUser = "xxx"
$srcRegPwd = "111111"
$srcRegHost = "xxx.azurecr.cn"
$destRegUser = "yyy"
$destRegPwd = "222"
$destRegHost = "registry.xxx.com"

# get repositories from source registry
# httpie
$response = (http -b -a "${srcRegUser}:${srcRegPwd}" "https://${srcRegHost}/v2/_catalog") | ConvertFrom-Json
# curl
#$response = (curl -u "${srcRegUser}:${srcRegPwd}" "https://${srcRegHost}/v2/_catalog") | ConvertFrom-Json
# repository
$repositories = $response.repositories

#
Write-Host $repositories

# login source registry
docker login $srcRegHost -u $srcRegUser -p $srcRegPwd
# login dest registry
docker login $destRegHost -u $destRegUser -p $destRegPwd

# sync
foreach($repo in $repositories)
{
  Write-Host "sync $repo begin"

  $srcTag = "${srcRegHost}/${repo}:latest"
  $destTag = "${destRegHost}/${repo}:latest"

  Write-Host "source image tag: $srcTag"
  Write-Host "dest image tag $destTag"

  Write-Host "docker pull $srcTag begin"

  docker pull $srcTag

  Write-Host "docker pull $srcTag completed"

  Write-Host "docker tag $srcTag $destTag ing"

  docker tag $srcTag $destTag

  Write-Host "docker push $destTag begin"

  docker push $destTag

  Write-Host "docker push $destTag completed"
  
  Write-Host "docker rmi $srcTag $destTag begin"

  docker rmi $srcTag $destTag

  Write-Host "docker rmi $srcTag $destTag end"

  Write-Host "sync $repo completed"
}

Write-Host "Completed..."