I'm curious about why you needed to install these two packages for backend postgres-client and xdg-utils? Does it not work on container apps unless they are installed or why?
  
  
    
        
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           RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \  | 
        
        
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               && apt-get -y install --no-install-recommends postgresql-client \  | 
        
        
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               && apt-get update && apt-get install -y xdg-utils \  | 
        
        
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               && apt-get clean -y && rm -rf /var/lib/apt/lists/*  |