Running sudo command on a Azure function app using consumption plan

Question

I am trying to deploy an azure function written using python to an azure function app. The function is using pyzbar library. The pyzbar library documentation says that in a Linux environment, the below command needs to be executed so that the pyzbar can work.

sudo apt-get install libzbar0

How can I execute this command on the consumption plan. Please note that I can get this to work if I deploy the function with a container approach using a premium or a dedicated plan. But I want to get this to work using the consumption plan.

Any help is highly appreciated.

Answer 1

• I have a work around where every time you trigger your function it will run a script that will install the required packages using the command prompt.

• This can be achieved using subprocess module

code :

subprocess.run(["apt-get"," install"," libzbar0"])

for Example in the following code I am installing pandas using pip and returning it's version.

• But this will increase your execution time as even if you have added the packages it will continue to execute the installation commands every time you trigger the function.