Variables in .ci-gitlab.yml:
$REGISTRY_USER: Represents the username for Docker registry authentication.
$REGISTRY_PASS: Represents the password for Docker registry authentication.
$IMAGE_NAME: Represents the name of the Docker image.
$IMAGE_TAG: Represents the tag of the Docker image.
$SSH_KEY: Represents the SSH key used for authentication.
$SERVER_IP: Represents the IP address of the remote server.
$SSH_USER: Represents the SSH username.
$CONTAINER_NAME: Represents the name of the Docker container.
$POSTGRES_HOST: Represents the host of the PostgreSQL database.
$POSTGRES_DATABASE: Represents the name of the PostgreSQL database.
$POSTGRES_USER: Represents the username for PostgreSQL authentication.
$POSTGRES_PASSWORD: Represents the password for PostgreSQL authentication.