Added support for kubernetes authentication backend (#233)

* added support for kubernetes authentication backend

* Fix typo, removed unused import

.gitignore

@@ -45,3 +45,7 @@ dist/*
 
 # OSX
 .DS_Store
+
+# Intellij
+.idea/*
+*.iml

README.md

@@ -87,6 +87,7 @@ Current supported management of backend auth methods:
 - [Username & Password](https://www.vaultproject.io/docs/auth/userpass.html)
 - [Token](https://www.vaultproject.io/docs/auth/token.html)
 - [AppRole](https://www.vaultproject.io/docs/auth/approle.html)
+- [Kubernetes](https://www.vaultproject.io/docs/auth/kubernetes.html)
 
 In some cases, users might want to use middleware to authenticate into Vault-UI for purposes like SSO. In this case, the `VAULT_SUPPLIED_TOKEN_HEADER` may be populated with the name of the header that contains a token to be used for authentication.
 

app/App.jsx

@@ -15,6 +15,7 @@ import ResponseWrapper from './components/ResponseWrapper/ResponseWrapper.jsx';
 import TokenAuthBackend from './components/Authentication/Token/Token.jsx';
 import AwsEc2AuthBackend from './components/Authentication/AwsEc2/AwsEc2.jsx';
 import AwsAuthBackend from './components/Authentication/Aws/Aws.jsx';
+import KubernetesAuthBackend from './components/Authentication/Kubernetes/Kubernetes.jsx';
 import GithubAuthBackend from './components/Authentication/Github/Github.jsx';
 import RadiusAuthBackend from './components/Authentication/Radius/Radius.jsx';
 import UserPassAuthBackend from './components/Authentication/UserPass/UserPass.jsx';
@@ -83,6 +84,7 @@ ReactDOM.render((
                 <Route path="/auth/token/:namespace" component={TokenAuthBackend} />
                 <Route path="/auth/aws/:namespace(/**)" component={AwsAuthBackend} />
                 <Route path="/auth/aws-ec2/:namespace(/**)" component={AwsEc2AuthBackend} />
+                <Route path="/auth/kubernetes/:namespace(/**)" component={KubernetesAuthBackend} />
                 <Route path="/auth/github/:namespace(/**)" component={GithubAuthBackend} />
                 <Route path="/auth/radius/:namespace(/**)" component={RadiusAuthBackend} />
                 <Route path="/auth/okta/:namespace(/**)" component={OktaAuthBackend} />