Simplify vitess_config.yaml to minimum steps needed to run tests.

Author: thompsonja

test/cluster/keytar/config/vitess_config.yaml

@@ -1,46 +1,15 @@
 install:
   dependencies:
-    - automake
-    - bison
-    - bzip2
-    - chromium
-    - curl
-    - g++
-    - git
-    - libgconf-2-4
-    - libssl-dev
-    - libtool
-    - make
-    - mercurial
-    - openjdk-7-jdk
-    - php-pear
-    - php5-cli
-    - php5-dev
-    - pkg-config
-    - python-crypto
-    - python-dev
     - python-mysqldb
-    - ruby
-    - ruby-dev
-    - software-properties-common
-    - virtualenv
-    - unzip
-    - xvfb
   extra:
-    - apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db
-    - add-apt-repository 'deb [arch=amd64,i386,ppc64el] http://sfo1.mirrors.digitalocean.com/mariadb/repo/10.1/debian jessie main'
     - apt-get update
-    - apt-get install -y libmariadbclient-dev
     - wget https://storage.googleapis.com/golang/go1.7.4.linux-amd64.tar.gz
     - tar -C /usr/local -xzf go1.7.4.linux-amd64.tar.gz
     - wget https://storage.googleapis.com/kubernetes-helm/helm-v2.1.3-linux-amd64.tar.gz
     - tar -zxvf helm-v2.1.3-linux-amd64.tar.gz
     - pip install numpy
-    - pip install mysql-python
-    - debconf-set-selections <<< 'mariadb-server-10.1 mysql-server/root_password password root'
-    - debconf-set-selections <<< 'mariadb-server-10.1 mysql-server/root_password_again password root'
-    - apt-get install -y mariadb-server
-    - mysqld &
+    - pip install selenium
+    - pip install --upgrade grpcio==1.0.4
   path:
     - /usr/local/go/bin
     - /app/linux-amd64/
@@ -58,10 +27,12 @@ config:
       cluster_type: gke
       application_type: k8s
     before_test:
-      - ./bootstrap.sh
-      - if [[ $? -gt 0 ]]; then ./bootstrap.sh; fi
-      - source ./dev.env
+      - export VTTOP=$(pwd)
+      - export VTROOT="${VTROOT:-${VTTOP/\/src\/github.com\/youtube\/vitess/}}"
+      - export GOPATH=$VTROOT
+      - export PYTHONPATH=$VTTOP/py:$VTTOP/test:$VTTOP/test/cluster/sandbox:/usr/lib/python2.7/dist-packages:/env/lib/python2.7/site-packages
       - go get github.com/youtube/vitess/go/cmd/vtctlclient
+      - export PATH=$GOPATH/bin:$PATH
     tests:
       - file: test/cluster/drain_test.py
         params: