azure - AKS 无法拉取 ACR 图像 ImagePullBackOff

Question

我使用 Azure Kubernetes 服务从 Azure 容器注册表执行 docker 镜像部署。部署后我得到:

Failed to pull image "<reg_name>.azurecr.io/service:latest": [rpc error: code = NotFound desc = failed to pull and unpack image "<reg_name>.azurecr.io/service:latest": failed to resolve reference "<reg_name>.azurecr.io/service:latest": <reg_name>.azurecr.io/service:latest: not found, rpc error: code = Unknown desc = failed to pull and unpack image "<reg_name>.azurecr.io/service:latest": failed to resolve reference "<reg_name>.azurecr.io/service:latest": failed to authorize: failed to fetch anonymous token: unexpected status: 401 Unauthorized]

我创建了服务主体并获取了主体名称和密码(基于: https://anupams.net/using-image-pull-secrets-with-azure-container-registry/ )，然后将其放入 kubernetes secret 中。接下来在我的deployment.yml中，我使用了属性:imagePullSecrets和之前创建的 secret 。但部署后仍然无法工作，并且 kubectl get pods 报告相同的问题:

service-deployment-cbf49bcd9-vs2jz   0/1     ImagePullBackOff   0          27m

我尝试使用“docker login”命令和之前创建的服务主体凭据登录 - 它有效。但在 AKS 中则不然...谢谢您的帮助。

Answer 1

您应该使用利用 RBAC 的 AKS ACR 集成，而不是使用带有 Kubernetes key 的服务主体。

微软也推荐它:

While pull secrets are commonly used, they bring additional managementoverhead. If you're using Azure Kubernetes Service, we recommend otheroptions such as using the cluster's managed identity or serviceprincipal to securely pull the image without an additionalimagePullSecrets setting on each pod.

您可以通过对现有群集使用 Azure CLI details here 来执行此操作或创建一个新集群 details here 。如果您使用 Terraform 或 Bicep，您还可以自行创建角色分配。

地形示例:

 resource "azurerm_role_assignment" "example" {
    scope                            = azurerm_container_registry.acr.id
    role_definition_name             = "AcrPull"
    principal_id                     = azurerm_kubernetes_cluster.aks.kubelet_identity[0].object_id
  }