Privileged required

[deed02392]

Why is the privileged flag required for the operation of Phlex? Can we address this potential security issue?

[d8ahazard]

I honestly don't know that it is. Docker is new to me - I'm always open to suggestions for improvement.

[deed02392]

I think you may have enabled it because you need it to configure the host device to support multicast? Did you write this and have simply forgotten why you enabled it? :-)

[d8ahazard]

I think so. I'm seeing some messages in the log with it disabled about iptables needing root privileges. Working on some other things with it at the moment, adding some env variables for the ports.

How much do you know about docker? I'm trying to link the Phlex logs to the standard output, but not getting very far...

On Thu, Jul 20, 2017 at 10:47 AM, deed02392 notifications@github.com wrote:

I think you may have enabled it because you need it to configure the host device to support multicast? Did you write this and have simply forgotten why you enabled it? :-)

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[deed02392]

I think you need to ensure Phlex runs as PID 1, by using ENTRYPOINT exec form: https://docs.docker.com/engine/reference/builder/#exec-form-entrypoint-example

[d8ahazard]

@deed02392

https://forum.linuxserver.io/thread-495.html

I'm trying to get LSIO to make a proper image so this can become a non-issue. Pop over and show some support! :D

[aptalca]

@deed02392 --privileged is used for two reasons: 1) iptables 2) sysctl (for multicast)

iptables without privileged works if --cap-add=NET_ADMIN is added but I'm not sure what capability provides sysctl ability. I tried some of the obvious ones but they didn't work

[deed02392]

What specific sysctl parameters are getting changed? They can be modified with the call to run the container: --sysctl flag.

On 7 August 2017 at 20:49, aptalca notifications@github.com wrote:

@deed02392 https://github.com/deed02392 --privileged is used for two reasons:

1. iptables
2. sysctl (for multicast)

iptables without privileged works if --cap-add=NET_ADMIN is added but I'm not sure what capability provides sysctl ability. I tried some of the obvious ones but they didn't work

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-- From George Hafiz

[aptalca]

https://github.com/d8ahazard/docker-phlex/blob/master/root/etc/cont-init.d/40-install#L9