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Stateless and Stateful

Updated Apr 07, 2022 ·

Stateless Applications​

This means application that doesn't have a state and doesn't write any local files.

  • Scales horizontally
  • Also cannot keep local session
  • If same app is ran multiple times, it won't change state
  • Session management is done outside the container
  • Files cannot be saved locally on the container

Stateful Applications​

Includes traditional databases such as PostgreSQL and MySQL which have database files that can't be split over multiple instances.

  • Cannot horizontally scale
  • Can be ran on a single container and scale vertically
  • Use volumes to save data