rough-edges.md

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Rough edges

Fly is fantastic. Super happy to be on it.

These are the rough edges we've bumped up against, and (when applicable) how we handle it.

Fly Proxy

• auto-stop doesn't seeeeeem to work properly when websockets are in the mix

flyctl

apps

• restart
  • doesn't support --process-group
    • workaround (including backgrounding each Machine's individual restart command):
      • fly m list -a $APP | grep $PROCESS_GROUP | awk NF | awk '{ print "fly m restart " $1 " &;" }'
  • slow for restarting large numbers of Machines, and halts if any individual restart fails
    • workaround: use fly m restart $ID & instead
    • addressed in Restarting apps

machines

• status
  • no machine-readable output; we regex our way through it to get Machine status
    • nb: --display-config exists, but that's for something else
  • doesn't include healthchecks
    • fly checks list -a $app | grep $machine_id

scale

• count
  • it seems to grab a lease on all Machines at once, even when scoped by --process-group, which means fly scale count commands can't be run concurrently
    • no workaround