Auto deployment to now.sh from Circle CI

circle.yml

machine:
  node:
    version: 8
deployment:
  staging:
    branch: master
    owner: my-company
    commands:
      - ./deploy-staging.sh
  production:
    tag: /v[0-9]+(\.[0-9]+)+/
    owner: my-company
    commands:
      - ./deploy-production.sh

deploy-production.sh

#!/usr/bin/env sh

set -eu;

npm install --global now@9 [email protected];
URL="$(now deploy --env=DB_PASSWORD=@production-db-password --team=my-team --token=$ZEIT_TOKEN)";
await-url "$URL";
now alias set "$URL" my-app.com --team=my-team --token=$ZEIT_TOKEN;
now remove my-app --yes --safe --team=my-team --token=$ZEIT_TOKEN;

deploy-staging.sh

#!/usr/bin/env sh

set -eu;

npm install --global now@9 [email protected];
URL="$(now deploy --env=DB_PASSWORD=@staging-db-password --team=my-team --token=$ZEIT_TOKEN)";
await-url "$URL";
now alias set "$URL" staging.my-app.com --team=my-team --token=$ZEIT_TOKEN;
now remove my-app --yes --safe --team=my-team --token=$ZEIT_TOKEN;