If I want to run 100 identical services with Azure ContainerApp, how can I make each service read its own config file?

Question

If I want to run 100 identical services with Azure ContainerApp, how can I make each service read its own config file?

Alper Kose 0

Hello, this is my first time using Azure.

First of all, I use VS2022 Pro. The program was written in C# .Net8, Worker Service project...

I uploaded the code I wrote to Azure Service Registry, no problem...

Then I ran it as a Container App, no problem..

My question is as follows, I need to run 100 ContainerApps from this same service. However, since the programs in ContRegistry are exactly the same, I cannot make different configurations. For example

ContApp001 should connect to RabbitMq QueueName001 at start time

ContApp002 should connect to RabbitMq QueueName002 at start time... Think of 100 of these apps...

Initially, I need to change a .txt, xml or json file of each service and start it.

I didn't see it in Azure, can you help me???

VenkateshDodda-MSFT 25,241 Reputation points Microsoft Employee Moderator

2025-01-16T09:58:23.54+00:00

@Alper Kose Thanks for posting your question in Microsoft Q&A, apologize for delay in my response.

Based on the share information, I understood that you want to run multiple container apps with same image but different configurations and connect to a different service. Correct me if my understanding is wrong.

I am checking with internal team on this and will update you here once I hear back on this.
VenkateshDodda-MSFT 25,241 Reputation points Microsoft Employee Moderator

2025-01-20T04:39:03.1066667+00:00

@Alper Kose Following up to see if you have a chance to check my previous response and helped, do let me know if you have any further questions on this.

1 answer

Your answer

VenkateshDodda-MSFT 25,241 Reputation points Microsoft Employee Moderator

2025-01-16T09:58:23.54+00:00

@Alper Kose Thanks for posting your question in Microsoft Q&A, apologize for delay in my response.

Based on the share information, I understood that you want to run multiple container apps with same image but different configurations and connect to a different service. Correct me if my understanding is wrong.

I am checking with internal team on this and will update you here once I hear back on this.
VenkateshDodda-MSFT 25,241 Reputation points Microsoft Employee Moderator

2025-01-20T04:39:03.1066667+00:00

@Alper Kose Following up to see if you have a chance to check my previous response and helped, do let me know if you have any further questions on this.

Answer 1

@Alper Kose
You can use the same image or application with a customized Environment Variable that defines the queue name. You will need to update the image or application to read this Environment Variable instead of using a fixed queue name. Then, for each service, you can simply set or change the queue name Environment Variable as needed when you deploy it. This will eliminate the need for individual administration for each app in the future, so when you update any app, all of them will just use the new image and the same Environment Variable mechanism.

Refer to Environment variable in Azure container apps : https://learn.microsoft.com/en-us/azure/container-apps/environment-variables?tabs=portal

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If I want to run 100 identical services with Azure ContainerApp, how can I make each service read its own config file?

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