Category Archives: Programming

The benefits of using Arrays over Lists in C#

I’m an ardent proponent of using Arrays (T[]) over Lists (Lisf<T>) in C#. In my case, it’s mostly web services running in Azure and libraries, consumed by such services. In this blog post I’ll be collecting the pros and cons … Continue reading

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How to set access policy on Key Vault in another subscription aka How to deploy to resource group in another subscription using ARM template?

The model for my Service Fabric infrastructure consists of two major parts: Data Center (think Azure region) Scale Unit (think Service Fabric cluster and its child resources) But today due to the limitation around AAD first party application we decided … Continue reading

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How to split array into string for Service Fabric cluster ARM template

In order to use a certificates for Service Fabric cluster issues by custom, non publicly trusted CA you’d need to supply a list of thumbprints of intermediate CAs. In a form of a comma-separated string. What means if you have … Continue reading

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How I started using MediatR and then how I stopped, part 1

This is a series of posts: Part 1 Introduction Handlers, commands and queries MediatR Back to injecting handlers Part 2 Another option: DecoratR Introduction Today I own the Service Fabric infrastructure piece in my team, to run applications and services … Continue reading

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How to combine Key Vault access policy for AAD application and user-assigned managed identity in single ARM template

On other day I was exploring how to grant access for a user-assigned managed identity to a key vault. But here’s a more advanced scenario: let’s say legacy code uses an AAD application to access the key vault and modern … Continue reading

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How to create user-assigned managed identity, Key Vault, assign access policy using ARM template

There is already a plenty of materials about managed identities in Azure. But how to create a user-assigned managed identity and grant it the access to a key vault using an ARM template? I tried to find any references but … Continue reading

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How to find out the latest ARM api version for given resource type

If you’d like to find this out, for instance, for Service Fabric applications, then use this query: which would yield this result: 2017-07-01-preview2016-09-012016-03-01 what means that you now can go to the GitHub repo with all ARM schemas and find … Continue reading

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Git aliases to combine fetch in the background and checkout/merge/rebase

I decided to write down few useful Git aliases I’m using every day. Or how it looks in .gitconfig:

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HeartbeatActorServiceType is invalid and cannot be registered. Only ServiceTypes specified in the ServiceManifest can register.

If you try to register an actor within a Service Fabric service like this: but getting the following exception: System.Fabric.FabricException: ‘Invalid Service Type’ Inner Exception: COMException: Exception from HRESULT: 0x80071C21 then in Event Log (Applications and Services Logs -> Microsoft-Service-Fabric … Continue reading

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Service Fabric and Dependency Injection, part 3: Unit testing

This is a series of blog posts: Part 1: Stateful service Part 2: Stateless service Part 3: Unit testing Unit testing of the final construct we’ve got in previous two parts would be challenging due to a number of reasons: … Continue reading

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