Matt Stine - Enabling Continuous Delivery Scripts

mstine-enabling-continuous-delivery-scripts.txt

# https://www.youtube.com/watch?v=0EZ_JOavLjM

#cassandra-demo-integration-tests/configure
export VCAP_APPLICATION=“”
export REQUIRED_SERVICE_INSTANCES=“p-cassandra:multi-tenant:int-test-cassandra”
. test_service_instances
./gradlew clean integrationTest


Script 2:
# cassandra-demo-build-artifact/configure
# SWITCHES
-Pbuildversion=$BUILD_NUMBER
# TASKS
clean assemble


Script 3:
#cassandra-demo-deploy/configure
import jenkins.model.*
import hudson.model.*

def getAllBuildNumbers(Job job) {
  def buildNumbers = []
  (job.getBuilds()).each { build ->
    buildNumbers.add(build.getDisplayName().substring(1))
  }
return buildNumbers
}

def buildJob = Jenkins.instance.getItemByFullName(‘cassandra-demo-build-artifact’);
return getAllBuildNumbers(buildJob)


Script 4:
#cassandra-demo-deploy/configure
# LOGIN TO PIVOTAL CF
cf login -a https://api.cf.deepsouthcloud.com -u mstine -p ${CF_PASSWORD} -o mstine-org -s development —skip-ssl-validation

# DETERMINE CURRENTLY DEPLOYED VERSION OF APP
DEPLOYED_VERSION_CMD=$(CF_COLOR=false cf apps | grep ‘cassandra-demo-‘ | cut -d” “ -f1)
DEPLOYED_VERSION=“$DEPLOYED_VERSION_CMD"

# DETERMINE VERSION FOR NEW PRIVATE ROUTE
ROUTE_VERSION=$(echo “${BUILD_VERSION}” | cut -d”.” -f1-3 | tr ‘.’ ‘-‘)
echo “Deployed Version: $DEPLOYED_VERSION”
echo “Route Version: $ROUTE_VERSION”

# PUSH THE APP
cf push “cassandra-demo-$BUILD_VERSION” -i 1 -m 512M -n “cassandra-demo-$ROUTE_VERSION” -d cf.deepsouthcloud.com -p artifacts/cassandra-demo-${BUILD_VERSION}.jar —no-manifest —no-start

# BIND THE CASSANDRA SERVICE
cf bind-service “cassandra-demo-$BUILD_VERSION” my-cassandra

# START THE APP
cf start “cassandra-demo-$BUILD_VERSION”

# MAP THE PUBLIC ROUTE
cf map-route “cassandra-demo-${BUILD_VERSION}” cf.deepsouthcloud.com -n cassandra-demo

# SCALE UP FOR REDUNDANCY
cf scale cassandra-demo-${BUILD_VERSION} -i 2

# PERFORM ZERO-DOWNTIME CUTOVER TO NEW VERSION
if [ ! -z “$DEPLOYED_VERSION” -a “$DEPLOYED_VERSION” != “ “ -a “$DEPLOYED_VERSION” != “cassandra-demo-${BUILD_VERSION}” ]; then
  echo “Performing zero-downtime cutover to $BUILD_VERSION
  while read line
  do
    if [ ! -z “$line” -a “$line” != “ “ -a “$line” != “cassandra-demo-${BUILD_VERSION}” ]; then
      echo “Scaling down, unmapping and removing $line”

      # SCALE DOWN OLD VERSION
      cf scale “$line” -i 1

      # UNMAP PUBLIC ROUTE FROM OLD VERSION
      cf unmap-route “$line” cf.deepsouthcloud.com -n cassandra-demo

      # DELETE OLD VERSION
      cf delete “$line” -f
    else
      echo “Skipping $line”
    fi
done <<EOF
$DEPLOYED_VERSION
EOF
fi