Check in encrypted kubeconfig file

and test it with `kubectl get nodes`

.gitignore

@@ -1,2 +1,3 @@
 secrets.yaml
 */secrets.yaml
+kubeconfig.yaml

.travis.yml

@@ -1,7 +1,14 @@
 language: generic
 
+before_install:
+  - openssl aes-256-cbc -K $encrypted_87342d90efbe_key -iv $encrypted_87342d90efbe_iv -in kubeconfig.yaml.enc -out kubeconfig.yaml -d
 install:
   - curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
   - chmod +x ./kubectl
   - sudo mv ./kubectl /usr/local/bin/kubectl
+  - mkdir ${HOME}/.kube
+  - cp kubeconfig.yaml ${HOME}/.kube/config
+
+script:
+  - kubectl get nodes