create multistage version of Dockerfile

[irdgss]

Description

Aplicando mudanças para melhorar segurança da imagem e aplicando as melhores práticas de build.

• Multistage build
• Default user
• Dockerignore

Related tasks

• CLOUD-292

Checklist:

• I have added team label to the PR.
• Was tested by the responsible team?

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (997c653) 21.06% compared to head (8166271) 21.06%.

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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #16   +/-   ##
=======================================
  Coverage   21.06%   21.06%           
=======================================
  Files           6        6           
  Lines         845      845           
=======================================
  Hits          178      178           
  Misses        633      633           
  Partials       34       34           

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