Azure Container Registry
What is Azure Container Registry (ACR)?
Azure Container Registry is a managed Docker container registry service that allows you to store, manage, and deploy container images and artifacts. ACR integrates seamlessly with Azure Kubernetes Service (AKS) and other Azure services, providing a secure and scalable solution for your container images.
Key Features
- Integrated with Azure services
- Geo-replication for high availability
- Built-in security features like image scanning
- Support for Helm charts and OCI artifacts
- Access to Azure Active Directory for authentication
Setup Azure Container Registry
Setting up ACR can be done via the Azure portal, Azure CLI, or ARM templates. Below are the steps to set up ACR using Azure CLI:
az acr create --resource-group --name --sku Basic
Replace <resource-group-name>
with your resource group name and <registry-name>
with a unique name for your registry.
Usage of Azure Container Registry
Once your ACR is set up, you can push and pull Docker images using the following commands:
docker login .azurecr.io
docker build -t .azurecr.io/: .
docker push .azurecr.io/:
Best Practices
- Use service principals for authentication to enhance security.
- Implement role-based access control (RBAC) for managing permissions.
- Regularly scan images for vulnerabilities and update them.
- Use geo-replication for multi-region deployment needs.
- Maintain a tagging strategy for version control of images.
FAQ
What is the maximum size of a container image in ACR?
The maximum size for a single container image is 50 GB.
Can I use ACR with Docker Desktop?
Yes, you can integrate ACR with Docker Desktop for local development and testing.
What SKUs are available for ACR?
ACR offers various SKUs including Basic, Standard, and Premium, each with different features and storage limits.
Flowchart for ACR Workflow
graph TD
A[Start] --> B[Create ACR]
B --> C[Login to ACR]
C --> D[Build Docker Image]
D --> E[Push Image to ACR]
E --> F[Deploy to AKS]
F --> G[End]