Commits on Jun 8, 2024

1. perf(set_passwords): Run module in Network stage …

   Cloud-init blocks login until Config stage completes[1] to prevent users
   from connecting to the instance via ssh prior to user configuration[2].
   To enable faster ssh, cloud-init can simply move the set_passwords
   module sooner in boot. This follows precedent of previous races of this
   kind[3].
   
   The grub_dpkg module sometimes takes a long time to run, so this
   should improve time to ssh in that case and some others.
   
   This will make both chpasswd and passwd run earlier in boot than before.
   This should be safe, since chpasswd and passwd both use PAM, which to my
   knowledge just requires r/w access to /etc/.
   
   This effectively reverts b3c9b6a and moves the set_passwords
   module into Network stage.
   
   [1] canonical#2111
   [2] https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/2013403
   [3] https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/781101

   

   holmanb committed Jun 8, 2024
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