Azure Container image pull from private docker hub registry not working

Question

My deployment suddenly stopped working. It was fine for multiple months but now suddenly fails to pull the image from my private dockerhub registry
I'm getting the following error

{
  "code": "DeploymentFailed",
  "message": "At least one resource deployment operation failed. Please list deployment operations for details. Please see https://aka.ms/DeployOperations for usage details.",
  "details": [
    {
      "code": "InaccessibleImage",
      "message": "The image 'consolidatesoftware/kowalski:a3f38b6be70573d7aa67e84a343be249f0009335' in container group 'consolidate-staging' is not accessible. Please check the image and registry credential."
    }
  ]
}

My template sepcifies the ImageRegistryCredentials correctly and pulling the image with those credentials from the commandline works perfectly

{
    "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
      "name": {
        "defaultValue": "consolidate",
        "type": "string"
      },
      "container-image": {
        "defaultValue": "consolidatesoftware/kowalski:latest",
        "type": "string"
      },
      "dockerhub-username": {
        "type": "securestring"
      },
      "dockerhub-password": {
        "type": "securestring"
      }
    },
    "variables": {
      "location": "[resourceGroup().location]"
    },
    "resources": [
      {
        "type": "Microsoft.ContainerInstance/containerGroups",
        "apiVersion": "2021-10-01",
        "name": "[parameters('name')]",
        "location": "[variables('location')]",
        "properties": {
          "sku": "Standard",
          "containers": [
            {
              "name": "[parameters('name')]",
              "properties": {
                "image": "[parameters('container-image')]",
                "resources": {
                  "requests": {
                    "memoryInGB": 1.5,
                    "cpu": 1
                  }
                }
              }
            }
          ],
          "imageRegistryCredentials": [
            {
              "server": "index.docker.io",
              "username": "[parameters('dockerhub-username')]",
              "password": "[parameters('dockerhub-password')]"
            }
          ],
          "restartPolicy": "OnFailure",
          "osType": "Linux"
        }
      }
    ],
    "outputs": {
      "hostname": {
        "type": "string",
        "value": "[reference(resourceId('Microsoft.ContainerInstance/containerGroups', parameters('name'))).ipAddress.fqdn]"
      }
    }
  }
  

Answer 1

Hello Lukas,

The error message "InaccessibleImage" indicates that the deployment failed because the specified container image is not accessible. This can happen for a few reasons, such as: image name or registry URL is incorrect, image doesn't exist in the registry, or the registry credentials are incorrect or don't have access to the image.

From your deployment error i your image tag is not latest compared to your local pull image tag, is this expected?

"message": "The image 'consolidatesoftware/kowalski:a3f38b6be70573d7aa67e84a343be249f0009335'

Your local pull image tag: "defaultValue": "consolidatesoftware/kowalski:latest",

Please verify if the image tag you specified exists in your repository.

Best Regards.