Desktop Modeler deployment via REST API

[xevien96]

Problem you would like to solve

Setting up GRPC/ HTTP2 in company networks through firewalls, load balancers and such sometimes causes problems with customers.

Proposed solution

Use the Deploy Resource endpoint of the new Camunda 8 REST API to deploy process models, forms and DMN.

Alternatives considered

Use Postman to deploy resources or switch to the Webmodeler, but some Devs like the Desktop Modeler for quick testing.

Additional context

SUPPORT-24028

Related to #4109

[xevien96]

Support issue of one affected customer: https://jira.camunda.com/browse/SUPPORT-24028

[barmac]

We'd probably need to migrate to the SDK first: #4109

[barmac]

I think this one is worth discussing. However, it's not a simple switch because we also want to support Camunda versions with gRPC API only.

[barmac]

CC @crobbins215

[jonathanlukas]

@barmac The compatibility depends on the platform version. As each diagram has a platform version, the deployment could be controlled by this:

• > 8.5 => use rest
• < 8.6 => use grpc