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test: azure: check error for cloud detection.

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If something goes wrong during the Azure cloud detection, trying to cast
the returned value will result in the following panic and give no clue
as to what the error was.

```
  panic: interface conversion: cloudprovider.Interface is nil, not *azure.Cloud

goroutine 1 [running]:
k8s.io/kubernetes/test/e2e/framework/providers/azure.newProvider()
	test/e2e/framework/providers/azure/azure.go:50 +0x2b5
k8s.io/kubernetes/test/e2e/framework.SetupProviderConfig({0xc0007966b8, 0x5})
	test/e2e/framework/provider.go:82 +0x1a6
```
This commit is contained in:
Rafael Fonseca 2023-07-13 09:04:24 +02:00
parent 406d2dfe61
commit 9f5b6db8be
1 changed files with 4 additions and 1 deletions
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5
test/e2e/framework/providers/azure/azure.go
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@ -46,9 +46,12 @@ func newProvider() (framework.ProviderInterface, error) {
defer config.Close()
}
azureCloud, err := azure.NewCloud(config)
if err != nil {
return nil, err
}
return &Provider{
azureCloud: azureCloud.(*azure.Cloud),
}, err
}, nil
}
// Provider is a structure to handle Azure clouds for e2e testing