For this post I am assuming you are pretty familiar with the concept of deployment strategies (if not check out this post by Etienne). Now these are typically seen from an application deployment level, where platforms (like for instance Kubernetes) typically have out-of-the box mechanisms in place to do this. Now what if you would want to do this on an “infrastructure level”, like for instance the Kubernetes version of Azure Kubernetes Service. We could do an in-place upgrade, which will carefully cordon and drain the nodes. Though what if things go bad? We could do a Canary, Blue/Green, A/B, Shadow, … on cluster level too? Though how would we tackle the infrastructure point of view of this? That is the base for today’s post!
Architecture at hand
For today’s post we’ll leverage the following high level architecture ;
This project leverages Terraform under the hood. Things like DNS, Traffic Manager, Key Vault, CosmosDB, etc are “statefull’ where its lifecycle is fully managed by Terraform. On the other hand, our kubernetes clusters are “stateless” from an Infrastructure-as-Code point-of-view. We deploy them via Terraform, though do not keep track of them… All the lifecycle management is done on operating on the associated tags afterwards.
The drawing above was not created in Visio for once. The above was made leveraging CloudSkew, which was created by Mithun Shanbhag. Always awesome to see community contributions, which we can only applaud!
Continue reading “Leveraging Azure Tags and Azure Graph for deploying to your Blue/Green environments”
Ever heard of the app “Microsoft Whiteboard’? No?!? If you carry whiteboard markers around in your backpack like me, and you really like white boarding, then you should definitely check it out!
So a whole post about a white-boarding app? Yep… Though wait till you see the cool features it can do! 😉
Continue reading “Microsoft Whiteboard anyone?”
Typically you notice that there are two dimensions / viewpoints when it comes to monitoring. On one side there is a team that wants to view everything related to the “infrastructure”, like for instance the kubernetes cluster. On the other hand, there is the typical application performance monitoring that starts from the application side. Sadly enough, in a lot of cases, those two are separated islands… 😦
As you might know, on the Azure front you can do Application Performance Monitoring with Application Insights and there is like a really awesome integration with Azure Monitor (“Log Analytics”) from the container space (kubernetes). Though I see you thinking it… Two separate solutions. Though, what a lot of people forget, is that they are actually using “Log Analytics” under the hood. And… That you can query across workspaces in Log Analytics! Which means that you can join the two and have an aggregated view to span both worlds.
Let’s take a look!
For this test, I’ve created a k8s cluster which is linked to a separate log analytics work-space. Where next to it, there is an application (Azure Function) inside of a docker container that is linked to Application Insights.
Continue reading “Unified monitoring view in Kubernetes : Linking infrastructure monitoring with application monitoring”
This week Ignite kicked off with a series of announcements (as always). One of those was “Visual Studio Online“…
In my eagerness I wanted to test drive it and check out what the developer experience would be, and if it could replace my development station in Azure. So let’s delve into it shall we?
Continue reading “Test driving the newly announced Visual Studio Online”
Did you know almost every piece of software depends on OpenSource? Not sure… What libraries is your software using? Bingo! 😉
Now we all know that package management can be a true hell. Tracking everything and ensure you are up-to-date to achieve the needed security level is hard. Next to that, there is always the risk that your build will break to moving to a library version.
What if we could enhance that flow a bit? You guessed it… Today’s post will be around how we can leverage native GitHub features to help us in this area!
Let’s hit the slopes!
For this walk-through, we’ll use the following ;
- an existing code repository, where we’ve forked CoreUI’s VueJS repo
- GitHub’s actions to run a workflow on every pull request
- GitHub’s automated security feature that will send pull requests to us when it detects security issues
Want to test this one out or follow along? Browse to the following sample repository ; https://github.com/beluxappdev/CoreUI-VueJS-GitHubSecurityDemo
So let’s fork this sample repository!
Continue reading “Improving the security & compatibility aspects of package management with native GitHub features”
For today’s post we’re going to take a look at GitHub Connect … It’s the link between the On-Premises installation of GitHub Enterprise Server and the popular SaaS offering (as we all have come to love it) called GitHub. 😉
Installing GitHub Enterprise Server (on Azure)
So my journey for today started with registering for the GitHub Enterprise Trial, where I decided to install it on Azure… as my “On Premises” location.
Continue reading “Taking a look at Github Enterprise Server & Github Connect”
Earlier this week, a new capability called “Azure Private Link” (and also “Azure Private Endpoint”) went into public preview. As a nice copy & past from the documentation page ;
Azure Private Link enables you to access Azure PaaS Services (for example, Azure Storage and SQL Database) and Azure hosted customer/partner services over a Private Endpoint in your virtual network. Traffic between your virtual network and the service traverses over the Microsoft backbone network, eliminating exposure from the public Internet. You can also create your own Private Link Service in your virtual network (VNet) and deliver it privately to your customers. The setup and consumption experience using Azure Private Link is consistent across Azure PaaS, customer-owned, and shared partner services.
As always, we’ll take this one out for a spin! For this we’ll see if we can access a storage account privately (from a virtual machine) over the VNET.
Continue reading “Hardening your storage account with Private Link / Endpoint”