Protoc install instructions update for WSL2 on Windows (dapr#8623)

* Updated instructions for installing prereq protoc tools on WSL2 on Windows

Signed-off-by: Whit Waldo <[email protected]>

* Applied Mike's suggestion to put bin in /usr/local/bin and includes in /usr/local/includes meaning the path doesn't need an update

Signed-off-by: Whit Waldo <[email protected]>

* Fixed step numbers

Signed-off-by: Whit Waldo <[email protected]>

* Swapped over to symlinks so go upgrades are resolved without necessitating new copies.

Signed-off-by: Whit Waldo <[email protected]>

---------

Signed-off-by: Whit Waldo <[email protected]>
Co-authored-by: Mike Nguyen <[email protected]>
Co-authored-by: Josh van Leeuwen <[email protected]>
Co-authored-by: Dapr Bot <[email protected]>

Author: 4 people

dapr/README.md

@@ -26,6 +26,42 @@ make init-proto
 make gen-proto
 ```
 
+### Instructions on Windows (WSL2 with Ubuntu 24.04)
+Use the following variation of the steps above
+
+1. Install protoc version: [v25.4](https://github.com/protocolbuffers/protobuf/releases/tag/v25.4) with the following 
+from your Ubuntu terminal to download the protoc package locally, unzip and copy into /usr/bin/protoc, update your
+$PATH and delete the local temp directory.
+```bash
+sudo apt install unzip
+cd ~
+mkdir protoc
+cd protoc
+# Assumes 32- or 64-bit - replace as necessary
+wget https://github.com/protocolbuffers/protobuf/releases/download/v25.4/protoc-25.4-linux-x86_64.zip
+unzip protoc-25.4-linux-x64_64.zip
+rm protoc-25.4-linux-x64_64.zip
+sudo mv bin/* /usr/local/bin
+sudo mv include/* /usr/local/include
+cd ..
+sudo rm -r protoc
+```
+2. Navigate to your Dapr repository. For example, if you've got it in Windows at `P:/Code/Dapr` in your Ubuntu terminal
+use `cd /mnt/p/Code/Dapr`.
+3. Install proto-gen-go and protoc-gen-go-grpc, then move from their install directory to your previously created directory
+in `/usr/bin/protoc`
+```bash
+make init-proto
+cp ~/go/bin
+ln -s ~/go/bin/protoc-gen-go /usr/local/bin
+ln -s ~/go/bin/proto-gen-go-grpc /usr/local/bin
+```
+4. Generate the proto clients
+```bash
+make gen-proto
+```
+
+
 ## Update e2e test apps
 
 Whenever there are breaking changes in the proto files, we need to update the e2e test apps to use the correct version of dapr dependencies. This can be done by navigating to the tests folder and running the commands:-