"Running version" in a EB environment is empty after deployed the app. Where does it get the "Running version" from?

You are required to create a new application version. It seems that during the creation of the Elastic Beanstalk (EB) application using TravisCI, this detail was overlooked. When creating an application version, it must be associated with an S3 bucket containing the deployable code.

Here's an example of using the AWS CLI to create an application version:

aws elasticbeanstalk create-application-version --application-name my-application --version-label v1 --source-bundle S3Bucket=DOC-EXAMPLE-BUCKET,S3Key=php-proxy-sample.zip

For integration with Travis CI in your .travis.yml, ensure to specify the bucket_path with the name of the application version:

deploy:
  provider: elasticbeanstalk
  access_key_id:
    secure: "Encrypted <access-key-id>="
  secret_access_key:
    secure: "Encrypted <secret-access-key>="
  region: "us-east-1"
  app: "example-app-name"
  env: "example-app-environment"
  bucket_name: "the-target-S3-bucket"
  bucket_path: "php8.1-app"

Resources:

• AWS Elastic Beanstalk Deployment