docker: Images Security

[smuu]

This is part of: celestiaorg/test-infra#160.

• Use a non-root user named celestia (UID/GID = 10001)
• Dependabot now also scans Dockerfiles in the docker folder
• Change to folder /home/celestia

Checklist

• New and updated code has appropriate documentation
• New and updated code has new and/or updated testing
• Required CI checks are passing
• Visual proof for any user facing features like CLI or documentation updates
• Linked issues closed with keywords

[evan-forbes]

thanks!!

[codecov-commenter]

Codecov Report

Merging #1473 (204387f) into main (953860c) will increase coverage by 0.04%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##             main    #1473      +/-   ##
==========================================
+ Coverage   50.93%   50.97%   +0.04%     
==========================================
  Files          81       81              
  Lines        4661     4665       +4     
==========================================
+ Hits         2374     2378       +4     
  Misses       2103     2103              
  Partials      184      184              

Impacted Files	Coverage Δ
app/app.go	3.98% <75.00%> (+0.96%)	⬆️

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[MSevey]

we should close the loop on unit testing the new function and adding the link to the go docs about the default value for the user home directory

[evan-forbes]

really nice improvements, thanks for this 🙂

[MSevey]

👏

[MSevey]

@evan-forbes Does this resolve #377 now? Or is that a slightly different issue?

Since we are now loading the env var.

[evan-forbes]

yeah, we should be able to close #377