Container with google cloud monitoring agent for Elasticsearch

Deployment

# Set required variables
export PROJECT_ID=first-footing-108508
export NAMESPACE=production
export TAG=v1
export QUALIFIED_IMAGE_NAME=eu.gcr.io/${PROJECT_ID}/elasticsearch-monitor:${TAG}
export DEPLOYMENT_ID=1
export GCLOUD_MONITORING_API_KEY=APIKEY
export ELASTICSEARCH_STATS_URL=https://user:pwd@elastichost:port/_nodes/_local/stats/

# Build the image and push to the container engine
docker build -t ${QUALIFIED_IMAGE_NAME} .
gcloud docker push ${QUALIFIED_IMAGE_NAME}

# Create the service:
cat ./kubernetes/service.json | \
   perl -pe 's/\{\{(\w+)\}\}/$ENV{$1}/eg' | \
   kubectl create --namespace=${NAMESPACE} -f -

# Create the replication controller:
cat ./kubernetes/rc.json | \
   perl -pe 's/\{\{(\w+)\}\}/$ENV{$1}/eg' | \
   kubectl create --namespace=${NAMESPACE} -f -

Update steps

# Set required variables
export PROJECT_ID=first-footing-108508
export NAMESPACE=production
export TAG=v2
export DEPLOYMENT_ID=2
export QUALIFIED_IMAGE_NAME=eu.gcr.io/${PROJECT_ID}/elasticsearch-monitor:${TAG}
export GCLOUD_MONITORING_API_KEY=APIKEY
export ELASTICSEARCH_STATS_URL=https://user:pwd@elastichost:port/_nodes/_local/stats/

# Build the new image and push to container engine
docker build -t ${QUALIFIED_IMAGE_NAME} .
gcloud docker push ${QUALIFIED_IMAGE_NAME}

# Peform a rolling update on the replication controller
OLD_RC=$(~/google-cloud-sdk/bin/kubectl get rc -l "app=elasticsearch-monitor" --namespace=${NAMESPACE} -o template --template="{{(index .items 0).metadata.name}}")

export REPLICAS=$(~/google-cloud-sdk/bin/kubectl get rc ${OLD_RC} --namespace=${NAMESPACE} -o template --template="{{.spec.replicas}}")

cat ./kubernetes/rc.json | \
   perl -pe 's/\{\{(\w+)\}\}/$ENV{$1}/eg' | \
   kubectl rolling-update ${OLD_RC} --namespace=${NAMESPACE} -f -