Special requirements for DietPi node-red installations

[lscarneiro]

• [ ] Bugfix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)

Proposed changes

I wasted several hours investigating the Error: getaddrinfo -3008 and couldn't solve it with any of the solutions proposed on this repo's issues nor on the dependency (mdns repo)[https://github.com/agnat/node_mdns].

In the end, it boiled down to DietP's minimalistic approach to default packages that don't even provide avahi-daemon out of the box (as you need to install it with dietpi-software) and looks like this wasn't enough for this node to work, I needed an extra prerequisite lib: libnss-mdns.

I didn't try uninstalling libavahi-compat-libdnssd-dev or libudev-dev to check if those are not needed for DietPi installations, but what solved in my case was installing this extra package.

I hope it helps someone in the future

Checklist

• [x] I have read the contribution guidelines
• [ ] For non-bugfix PRs, I have discussed this change on the forum/slack team.
• [ ] I have run grunt to verify the unit tests pass
• [ ] I have added suitable unit tests to cover the new/changed functionality

[linux-foundation-easycla[bot]]

• :x: login: lscarneiro / name: Luiz Eduardo Carneiro (fb9d360d3143bc392163b3aa7066a9128d9cd31b). This user is authorized, but they must confirm their affiliation with their company. Start the authorization process by clicking here, click "Corporate",select the appropriate company from the list, then confirm your affiliation on the page that appears. For further assistance with EasyCLA, please submit a support request ticket.