Changes for docker

[tobiasrodestock]

Preparations

Please check if the PR fulfills these requirements

• Readme (How to Install, Run, Use and Configure) wurde aktualisiert falls nötig
• Das Feature ist dokumentiert
• Alle nicht getter und setter Methoden sind dokumentiert
• Es wurden Unit tests für neue Features erstellt
• Alle Tests müssen erfolgreich sein
• Mindestens ein Reviewer muss den Pull Request akzeptieren

🎫 Description

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)

Added dockerfile and changed environment variables for docker

• What is the current behavior? (You can also link to an open issue here)

• What is the new behavior (if this is a feature change)?

• Does this PR introduce a breaking change? (What changes might users need to make in their application due to this PR?)

• Other information:

🔒 Closes

Which issue(s) is (are) being closed by the PR?