Unable to get image manifest from Azure Container Registry

Question

I want to add a tag to an already existing image in an Azure Container Registry. Without pulling the image and pushing it to the container registry again. I found this https://stackoverflow.com/a/38362476/2546371, which looks like something that I want to do. But it doesn't seem to work for Azure Container Registry, which is kind of weird as I also found this https://learn.microsoft.com/en-us/rest/api/containerregistry/manifests, which says that it is in preview. And the "try it" function doesn't work as well.

When I try to get an image manifest.

curl {url}/v2/{image}/manifests/{reference}

I get:

<html>
<head><title>301 Moved Permanently</title></head>
<body bgcolor="white">
<center><h1>301 Moved Permanently</h1></center>
<hr><center>openresty</center>
</body>
</html>

In Microsofts documenation is says:

Security
registry_auth

Type: basic

So I tried adding basic auth, where the password is from the Azure portal under "Access keys".:

curl -L --user {username}:{password} {url}/v2/{image}/manifests/{reference}

I get some kind of website (HTML, CSS and javascript) as the response, not the expected json file.

Did you include the headers suggested in the linked question? Did you follow the 301 redirect requested by the server? — BMitch, May 23 '22 at 12:03
@BMitch , if you mean "-H 'content-type: application/vnd.docker.distribution.manifest.v2+json' ", yes I tried with that as well. Same result. — Finitely Failed, May 24 '22 at 08:34
When I get 301, the location is https://azure.microsoft.com/services/container-registry/. — Finitely Failed, May 24 '22 at 12:45

score 0 · Answer 1 · answered May 23 '22 at 12:00

I found out that you can use Azure CLI to do what I want to do.

az acr import --name {nameOfContainerRegistry} --source {urlToContainerRegistry}/{image}:{tag} --image {image}:{tagToAdd} --force

From this post: https://stackoverflow.com/a/62410220/2546371

Unable to get image manifest from Azure Container Registry

1 Answers1