Refactoring provider-kubeconfig.py

* Use python kube-client
* Modularize delete functionality
* Add check to verify if API server is reachable
* Error handling

Signed-off-by: Chirayu Kapoor <dev.csociety@gmail.com>

Author: chiukapoor

.gitignore

@@ -1,6 +1,7 @@
 *~
 venv
 provider-kubeconfig.log
+kubeplus-saas-provider.json
 bak
 vendor
 operator-deployer/artifacts/deployment/operator-deployer

README.md

@@ -78,7 +78,7 @@ The spec properties of the Kubernetes CRD wrapping the application Helm chart ar
    source venv/bin/activate
    pip3 install -r requirements.txt
    apiserver=`kubectl config view --minify -o jsonpath='{.clusters[0].cluster.server}'`
-   python3 provider-kubeconfig.py -s $apiserver create $KUBEPLUS_NS
+   python3 provider-kubeconfig.py create -s $apiserver $KUBEPLUS_NS
    deactivate
    ```