Incrementally add function to Azure Function Host without overwriting already deployed functions

Question

I'm working with multiple teams that develop & test Azure Functions independently from each other but want to deploy all functions to a centralized Azure Function host, like so:

The publishing methods I know overwrite the existing content on the host which is not wanted, we strive for an incremental update (similar to this question with the only difference that we use Python on Linux-based host instead of C#).

My question is: What is the easiest way to do this (assuming that hosts.json and function settings are the same for both projects)?

If team A runs

curl -X POST -u <user> --data-binary @"./func1-2.zip" https://<funcname>.scm.azurewebsites.net/api/zipdeploy

in their release pipeline and afterwards team B runs

curl -X POST -u <user> --data-binary @"./func3-4.zip" https://<funcname>.scm.azurewebsites.net/api/zipdeploy

func1 and func2 from team A are gone. Using PUT on the https://<funcname>.scm.azurewebsites.net/api/zip/ endpoint as indicated here didn't seem to publish the functions at all. When using FTP, I don't see any files in site/wwwroot/ at all, even after already publishing functions.

Answer 1

You need to use continuous deployment:

First, create a repo on Github, then configure deploy center:

Then use git to upload your local function app to Github:

echo "# xxxxxx" >> README.md
git init
git add .
git commit -m "first commit"
git branch -M main
git remote add origin <git-url>
git push -u origin main

update:

git init
git add .
git commit -m "something"
git branch -M main
git remote add origin <git-url>
git push -u origin main

Refer to this official doc:

https://learn.microsoft.com/en-us/azure/azure-functions/functions-continuous-deployment