Does Azure Web App support string/token replacement in config files? - azure

Question

I have a Web App that I deploy via YAML pipeline, but would like to see if it can be done via web app's Deployment Center.
I need to transform the IP address and userPrincipalName in the endpoint element, but it does not fall under AppSettings or connectionstring element. Is it possible to transform this kind of element via Web App, or am I stuck with YAML pipeline?
Here is snippet of my config file:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<appSettings>
<add key="API_AUTH_MODE" value="2" />
</appSettings>
<system.serviceModel>
<client>
<endpoint address="net.tcp://10.0.0.0:99/App1/Services/Service1"
binding="netTcpBinding" bindingConfiguration="NetTcpBinding_Service1"
contract="Service1" name="NetTcpBinding_Service1">
<identity>
<userPrincipalName value="user#domain.local" />
</identity>
</endpoint>
<endpoint address="net.tcp://10.0.0.0:99/App1/Services/Service2"
binding="netTcpBinding" bindingConfiguration="NetTcpBinding_Service2"
contract="Service2" name="NetTcpBinding_Service2">
<identity>
<userPrincipalName value="user#domain.local" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>

Answer 1

Is it possible to transform this kind of element via Web App, or am I stuck with YAML pipeline?
AFAIK, I am afraid you could not transform this kind of element via Web App at this mpment.
That because the IP address and userPrincipalName does not fall under AppSettings or connectionstring element.
So, we could not use the Application settings or connection strings to replace it. We have to resolve this issue with YAML pipeline.
BTW, we could use the Replace Tokens in the YAML pipeline to resolve it.
Hope this helps.

Answer 2

While it was answered correctly above - Web App cannot transform anything other than Appsettings or 'connectionstring`, I ended up doing the following:
Use XML Transform files to replace the strings needed, since there is dependency on build type
Use YAML file to access vault to do password replacements.
I could have used Web App to do the password replacements, but it is much easier to manage the pipeline/deployment/release via a single YAML file rather than split YAML and Web App.