make travis use python

* fix-travis:
  fix travis

.travis.yml

@@ -1,38 +1,41 @@
-### # https://docs.travis-ci.com/user/languages/python/
-### language: python
-### python:
-###   - "3.5"
-###   - "3.6"
-###   #- "3.7-dev" # fails due to datrie build failure (snakemake dependency)
-### # command to install dependencies
-### install:
-###   - pip install -r requirements.txt
-###   - python setup.py build install
-### # command to run tests
-### script:
-###   - pytest
-###
-######################
-#
-
-# https://github.com/LiliC/travis-minikube/blob/master/.travis.yml
+# https://raw.githubusercontent.com/LiliC/travis-minikube/master/.travis.yml
+language: python
+python:
+  - "3.5"
+  - "3.6"
 
 sudo: required
 
+# This moves Kubernetes specific config files.
 env:
 - CHANGE_MINIKUBE_NONE_USER=true
 
+# command to install dependencies
+install:
+# Install byok8s requirements (snakemake, python-kubernetes)
+- pip install -r requirements.txt
+# Install byok8s cli tool
+- python setup.py build install
+
 before_script:
-- sudo apt-get update
-- sudo apt-get install -y coreutils
-- curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/v1.7.0/bin/linux/amd64/kubectl && \
-    chmod +x kubectl && sudo mv kubectl /usr/local/bin/
-- curl -Lo minikube https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 && \
-    chmod +x minikube && sudo mv minikube /usr/local/bin/
-- sudo minikube start --vm-driver=none --kubernetes-version=v1.7.0
+# Do everything from test/
+- cd test
+# Download kubectl, which is a requirement for using minikube.
+- curl -Lo kubectl https://storage.googleapis.com/kubernetes-release/release/v1.9.0/bin/linux/amd64/kubectl && chmod +x kubectl && sudo mv kubectl /usr/local/bin/
+# Download minikube.
+- curl -Lo minikube https://storage.googleapis.com/minikube/releases/v0.25.2/minikube-linux-amd64 && chmod +x minikube && sudo mv minikube /usr/local/bin/
+- sudo minikube start --vm-driver=none --kubernetes-version=v1.9.0
+# Fix the kubectl context, as it's often stale.
 - minikube update-context
-- JSONPATH='{range .items[*]}{@.metadata.name}:{range @.status.conditions[*]}{@.type}={@.status};{end}{end}'; \
-    until kubectl get nodes -o jsonpath="$JSONPATH" 2>&1 | grep -q "Ready=True"; do sleep 1; done
+# Wait for Kubernetes to be up and ready.
+- JSONPATH='{range .items[*]}{@.metadata.name}:{range @.status.conditions[*]}{@.type}={@.status};{end}{end}'; until kubectl get nodes -o jsonpath="$JSONPATH" 2>&1 | grep -q "Ready=True"; do sleep 1; done
 
 script:
 - kubectl cluster-info
+# Verify kube-addon-manager.
+# kube-addon-manager is responsible for managing other kubernetes components, such as kube-dns, dashboard, storage-provisioner..
+- JSONPATH='{range .items[*]}{@.metadata.name}:{range @.status.conditions[*]}{@.type}={@.status};{end}{end}'; until kubectl -n kube-system get pods -lcomponent=kube-addon-manager -o jsonpath="$JSONPATH" 2>&1 | grep -q "Ready=True"; do sleep 1;echo "waiting for kube-addon-manager to be available"; kubectl get pods --all-namespaces; done
+# Wait for kube-dns to be ready.
+- JSONPATH='{range .items[*]}{@.metadata.name}:{range @.status.conditions[*]}{@.type}={@.status};{end}{end}'; until kubectl -n kube-system get pods -lk8s-app=kube-dns -o jsonpath="$JSONPATH" 2>&1 | grep -q "Ready=True"; do sleep 1;echo "waiting for kube-dns to be available"; kubectl get pods --all-namespaces; done
+# Create example Redis deployment on Kubernetes.
+- byok8s workflow-alpha params-blue

README.md

@@ -147,24 +147,22 @@ won't be able to find the kubernetes cluster.)
 for workflow config and param files,
 or have a built-in set of params and configs.)
 
-Run the blue workflow with alpha params:
+Run the alpha workflow with blue params:
 
 ```
-byok8s -w workflow-blue -p params-alpha
+byok8s -w workflow-alpha -p params-blue
 ```
 
-Run the blue workflow with gamma params, and 
-kubernetes configuration details in kube-deets
-(all json files):
+Run the alpha workflow with red params:
 
 ```
-byok8s -w workflow-blue -p params-gamma
+byok8s -w workflow-alpha -p params-red
 ```
 
-Run the red workflow with gamma params, &c:
+Run the gamma workflow with red params, &c:
 
 ```
-byok8s -w workflow-red -p params-gamma
+byok8s -w workflow-gamma -p params-red
 ```
 
 (NOTE: May want to let the user specify