deploy_data_consumer.sh

#!/bin/bash
# Deploy/Update project on AWS by CloudFormation.

# Get script location.
SHELL_PATH=$(cd "$(dirname "$0")";pwd)
# Import global variables
source $SHELL_PATH/../bootstrapping/config.sh

arg_count=$#
script_name=$(basename $0)
stack_action=update

input_template_file="$SHELL_PATH/data_consumer_template.yaml"
output_template_file_name="packaged-template-output.yaml"
output_template_file="$SHELL_PATH/$output_template_file_name"

cf_stack_name="$project_name-data-consumer"
cf_change_set_name="$cf_stack_name-change-set"

if test $arg_count -eq 1; then
  if [[ $1 =~ ^(create|update)$ ]]; then
    stack_action=$1
  else
    echo "Stack Action must be create or update"
    echo "Usage: $script_name [create|update]"
    exit -1
  fi
else
  echo "Usage: $script_name [create|update]"
  echo ""
  echo "Examples:"
  echo "$script_name create"
  echo ""
  exit 0
fi

echo "${stack_action^^} $cf_stack_name cloudformation stack..."
if [ $stack_action = update ]; then
  echo "NOTE: Before UPDATE a stack, be sure you already have the corresponding stack in cloudformation"
fi

if [ -f $output_template_file ]; then
  rm -rf $output_template_file
fi

echo "Packaging..."
aws cloudformation package \
  --template-file $input_template_file \
  --s3-bucket $s3_deployment_bucket \
  --output-template-file $output_template_file

result=$?

if test $result -ne 0; then
  echo "Failed to package template $input_template_file"
  exit $result
fi

echo "Uploading template file..."
aws s3api put-object \
  --bucket $s3_deployment_bucket \
  --key $output_template_file_name \
  --body $output_template_file
  
latest_image_degest="$(aws ecr describe-images \
  --repository-name $ecr_lambda_consumer_repo \
  --image-ids imageTag=latest \
  --query 'imageDetails[0].imageDigest' \
  --output text)"
latest_image_uri="$ecr_lambda_consumer_repo_uri@$latest_image_degest"
echo "Latest Image Uri: $latest_image_uri"

echo "Creating change set..."
aws cloudformation create-change-set \
  --change-set-type ${stack_action^^} \
  --stack-name $cf_stack_name \
  --change-set-name $cf_change_set_name \
  --template-url https://$s3_deployment_bucket.s3.$deployment_region.amazonaws.com/$output_template_file_name \
  --capabilities CAPABILITY_IAM CAPABILITY_NAMED_IAM \
  --parameters ParameterKey="Prefix",ParameterValue=$project_name \
               ParameterKey="ImageUri",ParameterValue="$latest_image_uri" \
               ParameterKey="KinesisStreamName",ParameterValue=$fb_kinesis_stream

result=$?

if test $result -ne 0; then
  echo "Failed to create change set $cf_change_set_name"
  if [ -f $output_template_file ]; then
    rm -rf $output_template_file
  fi
	exit $result
fi

echo "Waiting for change-set-create-complete..."
aws cloudformation wait \
  change-set-create-complete \
  --stack-name $cf_stack_name \
  --change-set-name $cf_change_set_name
    
result=$?

if test $result -ne 0; then
  echo "create-change-set return failed"
  if [ -f $output_template_file ]; then
    rm -rf $output_template_file
  fi
	exit $result
fi

echo "Executing change set..."
aws cloudformation execute-change-set \
  --change-set-name $cf_change_set_name \
  --stack-name $cf_stack_name

echo "Waiting for stack executing complete..."
aws cloudformation wait \
  stack-${stack_action}-complete \
  --stack-name $cf_stack_name

result=$?

if test $result -ne 0; then
  echo "Deleting change set..."
  aws cloudformation delete-change-set \
    --stack-name $cf_stack_name \
    --change-set-name $cf_change_set_name
fi

if [ -f $output_template_file ]; then
	rm -rf $output_template_file
fi

echo "done"