This demo require default settings on Piggy Webhook. You can install Piggy Webhooks with default settings by

helm -n piggy-webhooks install piggy-webhooks piggysec/piggy-webhooks \
  --set aws.roleArn=${piggy-role-arn} \
  --set env.AWS_REGION=ap-southeast-1 \
  --set env.PIGGY_DEFAULT_SECRET_NAME_SUFFIX=/test

Or use a value file

aws:
  roleArn: arn:aws:iam::123456789:role/piggy-webhooks

env:
  AWS_REGION: "ap-southeast-1"
  PIGGY_DEFAULT_SECRET_NAME_PREFIX: ""
  PIGGY_DEFAULT_SECRET_NAME_SUFFIX: "/test"

helm -n piggy-webhooks install piggy-webhooks piggysec/piggy-webhooks -f values.yaml