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feature: enable debugging locally without building images #20

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ptyin wants to merge 1 commit into apache:master from ptyin:feature/local-test

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ptyin commented Feb 28, 2024

What this PR does?

Modify the statefulset pod qualified name from seata-server-0.seata-server-cluster.default.svc to seata-server-0.seata-server-cluster.default.svc.cluster.local (the former can not be resolved using telepresence).
Add developer usage in README

Usage

See README.md or README.zh.md.

To debug this operator locally, we suggest you use a test k8s environment like minikube.

Method 1. Modify code and build the controller image:

Assume you are using minikube for testing,
```
eval $(minikube docker-env)
make docker-build deploy
```
Method 2. Locally debug without building images

You need to use telepresence to proxy traffic to the k8s cluster, see telepresence tutorial to install its cli tool and traffic manager. After installing telepresence, you can connect to minikube by following commands:
```
telepresence connect
# Check if traffic manager connected
telepresence status
```
By executing above commands, you can use in-cluster DNS resolution and proxy your requests to the cluster. And then you can use IDE to run or debug locally:
```
# Make sure generate proper resources first
make manifests generate fmt vet

go run .
# Or you can use IDE to run locally instead
```


          feature: enable debugging locally without building images

63cef58

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