Issue #118 improper check fix

Type of change

• Bug Fix
• Feature

Does this introduce a change in the core logic?

• [No]

Does this introduce a change in the cloud provider implementation, and if so which cloud? - NO

• AWS
• Azure
• GCP
• IBM

Does this introduce a change that must be documented in the README.md file?

• [No]

Updates description?

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• Related to #118
• Assert will not run in runtime compiled python code, only on testing scenarios (Review #118 for more details).
• Changed dockerfile to use msosdu registry instead of external registry, without relying on external sources.