Display error message when docker ps -a command fails

[DeMonkeyCoder]

Currently, when the docker ps -a command fails, the CLI displays a generic error message that does not clearly indicate the underlying issue, making debugging difficult. For instance, in my case, the Docker Engine was running but encountered permission issues. The generic error message left me confused until I manually ran docker ps -a in the shell, which provided the actual error details.

[shimkiv]

Hey @DeMonkeyCoder,
in order to debug the involved commands execution results you can set the DEBUG envar, for example: DEBUG=zk:* zk lightnet ....
If this is not sufficient, then instead of your current approach I'd better come up with more generalized permissions checking step rather than updating specific command.

[DeMonkeyCoder]

Hey @DeMonkeyCoder, in order to debug the involved commands execution results you can set the DEBUG envar, for example: DEBUG=zk:* zk lightnet .... If this is not sufficient, then instead of your current approach I'd better come up with more generalized permissions checking step rather than updating specific command.

I think the best way to do this is to check if stderr includes 'permission denied,' because checking if the user is a member of the Docker group is not enough, as the group permissions might not take effect until after restarting.

[shimkiv]

@DeMonkeyCoder I'd say it will be better to simply outline the possibility of enabling the debug logging (for the lightnet subcommand only at this stage) in this repository's README.md file and/or reflect the same info in https://github.com/o1-labs/docs2/blob/main/docs/zkapps/writing-a-zkapp/introduction-to-zkapps/testing-zkapps-lightnet.mdx