Auto deployment to now.sh in CI

circle.yml

machine:
  node:
    version: 7
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@7 await-url@0.3;
now switch my-company -t $ZEIT_TOKEN;
URL="$(now deploy -t $ZEIT_TOKEN -e DB_PASSWORD=@production-db-password)";
await-url "$URL" && now alias set "$URL" my-app.com -t $ZEIT_TOKEN;
now remove my-app --yes --safe -t $ZEIT_TOKEN;

deploy-staging.sh

#!/usr/bin/env sh

set -eu;

npm install --global now@7 await-url@0.3;
now switch my-company -t $ZEIT_TOKEN;
URL="$(now deploy -t $ZEIT_TOKEN -e DB_PASSWORD=@staging-db-password)";
await-url "$URL" && now alias set "$URL" staging.my-app.com -t $ZEIT_TOKEN;
now remove my-app --yes --safe -t $ZEIT_TOKEN;