How to call image inspect properties in hosted in ACR - azure

I have few images hosted in ACR, I want to inspect the image (Repository image) deployed in ACR.
For example I have one "hello-world" image in "test123" ACR. I want to inspect ACR image and read the json content of the image. I didn't see any suitable .NET packages or .NET SDK libraries.
how to run "docker image inspect test123.azurecr.io/hello-world:v3" using .NET SDK libraries by connecting AZURE Container Registry (ACR) ?
I have tried following packages, but I didn't see any support to get similar command using .NET Libraries.
https://www.nuget.org/packages/Microsoft.Azure.Management.ContainerService/
https://www.nuget.org/packages/Docker.DotNet/
https://github.com/dotnet/dotnet-docker

You can use the azure cli (az). It has a manifest command.
az acr manifest show --registry my-acr --name hello-world:123

Finally I got answer for my question. We can use Http V2 API capabilities to retrieve Manifest or Config information to retrieve.
To get manifest information below is the URL's
GET {url}/v2/{name}/manifests/{reference}
https://test.azurecr.io/v2/{imageName}/manifests/Sha:25635dfger4656454fggf
GET {url}/v2/{name}/blobs/{digest}
https://test.azurecr.io/v2/{imageName}/blobs/Sha:4534afdf33289988956565
Note: There are different digest's available for image. You will see one digest for entire Manifest and different digest for Config of Manifest section.
Please find below documentation
https://learn.microsoft.com/en-us/rest/api/containerregistry/manifests/get
https://learn.microsoft.com/en-us/rest/api/containerregistry/blob/get

Related

Azure App service Keeps pulling docker image from docker hub

I have a azure app service to host a docker image from out Azure Container Registry.
The full process is as follow:
Run Pipeline
Run Release pipeline
Azure app pulls the latest release from azure container registry
But what happen is that after Each realise, for some reason, the app service tries to pull the image from Docker Hubinstead of pulling from azure Container Registry.
Can somebody help to understand where is the issue here?
For your issue, I can guess the problem you made, you must set the image with the tag as, for example, nginx:latest. But if you push the image in the ACR and need to pull it from the ACR, you must set the image with the tag as myacr.azurecr.io/nginx:latest. In addition, you also need to configure the credential for your ACR.

Benefit in using Image Source: `Azure Container Registry` over Image Source: `Private Registry` in Azure wizard `Create Web App`?

Is there any benefit in using option Image Source: Azure Container Registry over Image Source: Private Registry in Azure wizard Create Web App ?
We are having one common Azure subscription in which we created Azure Container Registry. The registry contains several Repositories containing Docker images that we use as source for our containers.
But we were also considering testing the Docker images in an Azure App Service that we wanted to create in different Azure subscription dedicated to testing.
In the wizard "Create Web App", we encountered following two behaviors:
we selected Options: Single container, Image Source: Azure Container Registry
and we see error near Registry field: There are no ACR Registries in the selected subscription
and here we have left the wizard.
we selected Options: Single container, Image Source: Private Registry and we filled-in the url, username and password to access the Azure Container Registry along with other settings and the Azure Web App was created, started running and provided the content based on the target Docker image.
So the question is: Is there any benefit in using option Image Source: Azure Container Registry over Image Source: Private Registry in Azure wizard Create Web App ?
If the answer to question is yes, what are the options to use it in different Azure subscriptions? Should we create Azure Container Registry in every subscription and replicate the Docker images several times?
Azure container registry is the default ACR which should have provided a seamless integration without users, password, url...
Because you created the Web App in another subscription then it didn't show up.
Private registry is any registry on the internet, or you yourself host it somewhere so at the end it has the ability to connect to ACR but with providing details.
There is an open issue for your scenario and seems it's not resolved yet.

Azure Container Registry in Azure Web App for Containers across subscriptions

I'm currently trying to set up an Azure Web App for Containers, linking it to a Azure Container Registry that lives inside a different subscription. That's why my initial thought was to use the Private Registrytab inside the Web apps Container Settings to enter the credentials of said Registry.
However when I save and reload the page the settings of the Azure Container Registry tab are now populated and the Private Registry tab is empty. The issue is, that I get now get following error:
2020-01-21 21:51:12.951 ERROR - DockerApiException: Docker API responded with status code=NotFound, response={"message":"pull access denied for cliswebapi, repository does not exist or may require 'docker login': denied: requested access to the resource is denied"}
I assume because no password was stored. How do I configure this properly?
While you use the private registry, the Azure Container Registry is also a private registry, and deploy to Web App for Containers, you need to set the environment variables here:
DOCKER_REGISTRY_SERVER_USERNAME - The username for the ACR server.
DOCKER_REGISTRY_SERVER_URL - The full URL to the ACR server. (For example, https://my-server.azurecr.io.)
DOCKER_REGISTRY_SERVER_PASSWORD - The password for the ACR server.
See more details in If you're using Azure Container Registry, you need to set some app settings.
And if you create multiple containers, all the images must be in the same registry. All in Docker Hub or Azure Container Registry. See more details in All images must use the same registry.
Update:
With the message that you deploy the Web App using the image in the ACR in a different subscription. It seems it's a bug in Web App and you can see the issue in the Github. And the suggestion is that maybe you can use the service principal for the ACR to authenticate and the steps here.
I have spend some time on this issue and figured it out. Here is my solution:
Assuming we are having two subscriptions, let's call them SUB-A and SUB-B, where we are having an Azure Container Registry in SUB-A (called azurebluedev in my example).
Now we'd like to create an App Service in SUB-B that pulls its image of our container registry by using the admin username.
It's critical that you use the correct format under Image and tag in the docker blade when creating the app service. It must follow the format url/image:tag (without https) otherwise you will run into the described problem. I was using image:tag format beforehand which didn't work.
This worked for me!

Azure shared image gallery versions using terraform

Can you please help me how to list all the image versions available in Azure Shared Image gallery. I tried all the below , but no luck
https://www.terraform.io/docs/providers/azurerm/d/shared_image_gallery.html
https://www.terraform.io/docs/providers/azurerm/d/shared_image_version.html
https://www.terraform.io/docs/providers/azurerm/d/shared_image.html
There doesn't appear to be a way to do this with the default Terraform data resources. Here is a GitHub repo that leverages a null resource to allow you to run commands that can return data. With something like that you could leverage the Azure CLI to return all your images. Here is the command for the Azure CLI.
Hope this helps.

Azure deployment The value of deployment parameter 'dockerRegistryUrl' is null

Trying to deploy a web app using docker-compose and azure container registry and some public images but when I get to the review it gives me this error.
The value of deployment parameter 'dockerRegistryUrl' is null. Please specify the value or use the parameter reference. See https://aka.ms/resource-manager-parameter-files for details.
here is how I'm linking the azure container registry
image: csym023.azurecr.io/csym023_api:latest
...
image: csym023.azurecr.io/csym023_app:latest
think I may have set up the docker-compose file incorrectly for the azure container registry but I am not sure. the documentation link isn't very clear to me it doesn't say anything about the 'dockerRegistryUrl' or where to upload the resource manager parameter file.
here is the Docker compose file
For your issue, actually, the "dockerRegistryUrl" is not a property in the docker-compose file, it's an environment variable of the Azure Web App for Container if you use the template.
So if you use the ACR for you images, you need to set the environment variables DOCKER-REGISTRY-SERVER-UTL, DOCKER-REGISTRY-SERVER-PASSWORD and DOCKER-REGISTRY-SERVER-USERNAME in the app settings. Also, WEBSITES_ENABLE_APP_SERVICE_STORAGE is necessary.
In addition, you need to meet the Docker compose options which supported in Azure. And you can the details here.

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