update-pipeline.sh

#!/bin/bash

# *** Change this to the desired name of the Cloudformation stack of 
# your Pipeline (*not* the stack name of your app)
CODEPIPELINE_STACK_NAME="github-codepipeline"

if [ -z ${1} ]
then
	echo "PIPELINE CREATION FAILED!"
        echo "Pass your Github OAuth token as the first argument"
	exit 1
fi

set -eu

aws cloudformation update-stack \
        --capabilities CAPABILITY_IAM \
        --stack-name $CODEPIPELINE_STACK_NAME \
        --parameters ParameterKey=GitHubOAuthToken,ParameterValue=${1} \
        --template-body file://pipeline.yaml