Question: how to use pkg

[sigmaSd]

Hello I tried docker run -it termux/termux-docker:x86_64 but I can't access the network, ping for example fails with are you root? if I start with root entry point I can ping, but I don't want to do that because I can't use pkg

Is there an obvious thing I'm missing?

[sylirre]

Non-root ping requires cap_net_admin permission which is not enabled for Docker containers by default and neither set for the ping binary.

I also should note that Docker image is a lot different from Android OS. Basic utilities in /system/bin are based on Busybox: https://github.com/termux/termux-docker/tree/master/system/x86/bin. Not sure whether busybox ping works with Linux capabilities.

As adding support for non-root ping would require always running image with --cap-add=cap_net_admin, I'm not going to add that feature.

Termux Docker image is focused on Termux. It doesn't provide Android stuff. In Termux the ping is a wrapper for /system/bin/ping (part of operating system), assume the latter doesn't really exists/usable in Docker. Busybox was provided only as sufficient base for bootstrapping Termux environment and to get some of Termux scripts working properly.

[sigmaSd]

I just took ping as an example, want I want is to use pkg command, but currently it fails with error accessing the mirror, so I assumed it's the same issue as ping as in it can't access the network

Tldr is running stuff like pkg upgrade pkg install supported ?

[sylirre]

Networking is supported ad well as pkg. Don't use root for pkg and make sure you launching the image as shown in readme.

Networking, specifically DNS resolution, relies on dnsmasq service started by image entrypoint. If it was not started, the pkg won't work.

[sigmaSd]

I see but so far I can't still make it work, here is the steps I did

docker run -it --entrypoint /entrypoint.sh termux/termux-docker:x86_64
pkg upgrade

error

... more mirror errrors
[*] (1) https://mirror.surf/termux/termux-main/: bad
[*] (1) http://mirror.mephi.ru/termux/termux-main: bad
Error: None of the mirrors are accessible

I'm not familiar with this stuff yet, but https://github.com/termux/termux-docker/blob/master/entrypoint.sh#L11 seems like the dnsmasq is never started because of the check of id -i == 0

I also tried running /system/bin/mksh -T /dev/ptmx -c "/system/bin/dnsmasq -u root -g root --pid-file /dnsmasq.pid" >/dev/null 2>&1 manually in the container, it doesn't error, but I still get pkg errors

[sigmaSd]

ah nvm thats not the issue, dnsmasq is running , I'm going to assume that initially the id is 0

docker run -it --entrypoint /entrypoint.sh termux/termux-docker:x86_64
/system/bin/busybox pidof dnsmasq # returns a pid 11 for example

so the issue lies somewhere else

[sigmaSd]

I tested this on github action https://github.com/sigmaSd/t8664/actions/runs/5725674459/job/15514617432
and indeed it works
I haven no idea currently how to debug this locally

[sigmaSd]

The only issue I noticed is that dnsmasq seems to be consuming one cpu completely, maybe its stuck