add resin config generate --ethernet and --wifi options for noninteractive cli

[hh]

Currently resin config generate does not allow specifying all necessary options via the cli.
It requires navigating with arrow keys interactively via console rather than specifying parameters.

$ resin config generate --app iichip --output config.json 
? Network Connection (Use arrow keys)
❯ ethernet 
  wifi 

This poses a problem to automation pipelines which currently need a work around using something like expect:

https://gitlab.ii.org.nz/iichip/resin-cli/blob/latest/config.exp

#!/usr/bin/expect -f
spawn resin config generate --app "$env(APP)" --output config.json
match_max 100000
expect "ethernet"
send -- "\r"
expect "Check for updates every X minutes"
send -- "\r"
expect eof

Our work around just hit's enter twice to enable ethernet, but adding wifi configuration to the pipeline would be great.

@ii wrapped this expect into a Docker container to allow us to generate the config.json during our resin-os image bulid:

docker pull iichip/resin-cli
docker run -e EMAIL="$EMAIL" \
           -e APP="$APP" \
           -e PASSWORD="$PASSWORD" iichip/resin-cli > config.json

Front conversations

[jviotti]

Hey there,

Thanks for the suggestion, it sounds like a good addition. The problem is that the set of question we ask to be able to generate a config.json comes from an external service (the CLI blindly asks such questions), so hardcoding --wifi/--ethernet options would not be a possible way forward. As a consequence, we have to add some way for allowed options to be computed at runtime, or put a generic option what you can pass any set of key/value combinations that will be applied on top of the retrieved question list. We could also accept a path to a json file containing certain defaults, like networkType: 'wifi'. Would that suit your needs?

[hh]

Paired with a --show-opts and --generate-opt-file fill-me-out.json/yaml I think we have a winning combination!

Is there an API test suite or documentation area that addresses config generate and friends?
A quick look at https://docs.resin.io/runtime/data-api/ didn't reveal anything.

[jviotti]

Sounds good! I'll try to allocate some time for this soon. In order to get unblocked, you could use https://github.com/resin-io-modules/resin-device-config, which is the low-level module that generates configuration to create a simple script that does what you want. You could also take a look at https://github.com/resin-io/resin-config-json, which is the module that injects config.json to the device, in case you need that as well!

[imrehg]

In general I get quite a few requests for completely non-interactive resin config generate (so it's possible to use the script automated). Would that be possible to include in the near-term updates? Would help with things like the workflow we've shown in our preloading and preprovisioning blogpost

[pimterry]

Fixed and released in 6.9.0, see the docs for config generate for the full details.

Example:

resin config generate --app MyApp --network wifi --wifiSsid mySsid --wifiKey abcdefgh --appUpdatePollInterval 1