dans un Dockerfile : ENTRYPOINT + CMD
chez k8s : command + args
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                https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#define-a-command-and-arguments-when-you-create-a-pod
  
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                https://kubernetes.io/docs/tasks/inject-data-application/define-command-argument-container/#define-a-command-and-arguments-when-you-create-a-podà tester si un jour pas le choix ^^
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                http://babun.github.io/
  
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                http://babun.github.io/ifconfig netstat route .. autant de cmd à abandonner!
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                https://dougvitale.wordpress.com/2011/12/21/deprecated-linux-networking-commands-and-their-replacements/
  
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                https://dougvitale.wordpress.com/2011/12/21/deprecated-linux-networking-commands-and-their-replacements/