Docker Tagging: Best practices for tagging and versioning docker images

In any new tech, there are lots of thoughts around “best practices”. When a tech is new, what makes a best practice? Working at Microsoft, running the Azure Container Registry (ACR), talking with lots of customers, some that use Azure and some that don’t, we’ve had a lot of exposure to what customers have encountered….


Relaxing ACR storage limits, with tools to self manage

When we created the tiered SKUs for ACR, we built the three tiers with the following scenarios in mind: Basic – the entry point to get started with ACR. Not intended for production, due to the size, limited webhooks and throughput SLA. Basic registries are encrypted at rest and geo-redundantly stored using Azure Blob Storage,…


Working with ACR Geo-replication notifications

Azure Container Registry geo-replication enables a single control plane across the global footprint of Azure. You can opt into the regions you’d like your registry to have a network-close/local experience. However, there are some important aspects to consider. ACR Geo-replication is multi-master. You can push to any region, and ACR will replicate the manifests and…


OS & Framework Patching with Docker Containers – a paradigm shift

Thinking of containers, we think of the easy packaging of our app, along with its dependencies. The dockerfile FROM defines the base image used, with the contents copied or restored into the image. We now have a generic package format that can be deployed onto multiple hosts. No longer must the host know about what…


.NET and MultiStage Dockerfiles

A while back I talked about building optimized docker images. (Building Optimized Docker Images with ASP.NET Core) With compiled runtimes like Go, Java and .NET, you’ll want to first compile your code before having a binary that can be run. The components required to compile your code are not required to run your code. And the SDKs…


Deploying Docker Images from the Azure Container Registry to Azure Container Instances

In just a few minutes you can easily deploy Docker Container Images using just a context menu from the repositories blade of the Azure Container Registry. Azure Container Instances allow you to deploy Container Images directly without first provisioning VMs, Container Orchestrators, or any other container infrastructure. With Azure Container Instances, you pay just for what you use. Azure Container Instances are not a…


New Azure Container Registry SKUs

We recently released a preview of new Azure Container Registry SKUs, along with an overview on Channel 9 Video with Seth Juarez. One question that’s come up; what are the differences in the SKUs. In March we released General Availability for the standard registry features including: Authentication with a single Admin Account Authenticate with a Service Principal for service to service authentication; such…


Docker for Windows, Creators Update and Volume Sharing Linux Containers

If you’re attempting to use Volume Sharing with Docker for Windows after you’ve installed the Creators Update, you may get errors indicating a Firewall Port must be opened.  This combination of the Creators Update, Domain Joined machines and enabling volume sharing has had a recent regression we’re working to resolve. Note: this only applies to Linux…


Balancing change: feedback + learning / impact to customers = change

I was reading a post about the frustration a customer had around the constant change. First, I do apologize for the frustration as it is difficult to continually learn new things when the things you’ve learned keep changing. With each change, we balance the impact it will have on our existing customers, the challenges they’re…


Visual Studio Docker tools support for Visual Studio 2015 and 2017

With the Visual Studio 2017 RC release, we’ve started down the path to finally shipping an official version of Visual Studio Docker tools; enabling developers to locally develop and debug containerized workloads. The latest Visual Studio 2017 RC Docker Tools added a number of anticipated features: Multi-container debugging, supporting true microservice scenarios Windows Server Containers…