Make --ignore-validation sticky and send the flag over

snapd
#1

As we discussed in London and now that the server checks for validation constraints, to have a consistent experience we need to

  • send ignore-validation as a flag on refresh requests
  • make --ignore-validation sticky

there is an open question how then to remove/disable this sticky flag:

  • one option is that snap refresh --ignore-validation foo would set the flag and then snap refresh foo would remove it (there was some feedback in a related bug that is not clearly intuitive)
  • another option is to have snap refresh foo keep the flag as is, and have a snap refresh --enforce/follow-validation foo anti-flag to start not ignoring it again
The snapd roadmap
#2

We already have precedence for this behavior in other flags in refresh, so it seems reasonable to follow along instead of inventing new semantics.

For example, --devmode is sticky and will remain in place if an automatic refresh is performed. But once we issue a manual refresh command, we force the flag to be used again or it will go away. It makes sense as the behavior is non-standard and clearly asks for a behavior which isn’t the recommended result for such a refresh.

#3

opened:

#4

I also created this to show the flag if set:

https://github.com/snapcore/snapd/pull/4112

people reminded me of notes, I reproposed as this:

#5

created a PR to toggle the flag even if no update as we do for tracking channel:

#6

#4111 with the main fix for now was merged, can be tested in 2.29.1+ (in beta now)

#7

Anything else remaining here or can we take the tags off?

#8

mostly waiting for 2.29 to go to stable

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