[mythtv-users] Centos 7 and mythtv

[Rob Verduijn]

2016-08-20 15:45 GMT+02:00 Mike Perkins <mikep at randomtraveller.org.uk>:

> On 20/08/16 13:21, Rob Verduijn wrote:
>
>>
>> Hi,
>>
>> I've also been running mythtv on centos 7 for some time now.
>> When 0.28 was released I was a bit miffed because there was no repo that
>> contained the rpm's available.
>> Also the qt5 requirement was a bit of a challenge.
>>
>> I solved it by installing mythtv into a fedora 28 docker container on the
>> centos 7.2 host.
>>
>> This solved a lot of problems for me.
>> * quite a lot of rpms that in my view should not be instaled on a server
>> have been removed since they are installed in the container (cleaner
>> server
>> config)
>> * it's now in an isolated container again which makes a far better
>> security
>> solution than running it directly on a server backend
>> * it's a lot easier to allow a container access to a pci-card then to
>> share
>> it via passthrough to a vm ( most pci cards can't deal with this including
>> mine)
>> * Rebuilding a docker container with a docker file when there are updates
>> is really easy.
>> * the mariadb runs in a dedicated mariadb container.
>> * cronjobs are started on the centos host with the 'container exec'
>> command
>> which runs them as the mythuser in the mythtvbackend container.
>>
>> There are also drawbacks.
>> * running mythtv setup is a pain but not impossible (I created a dedicated
>> container for this that I only build when needed which is almost never)
>> * database schema updates are a challenge too (waiting for lock ends with
>> a
>> fail),
>>   for now I did a temporary mariadb install on my frontend to deal with
>> this (import old db from backend, upgrade, export new db to backend)
>>   I removed it once this was done. I'm still pondering what the best
>> solution is for this (I'm tinking of merging it with the mythsetup
>> container)
>> * it creates a rather large container
>> * I still need to create a container for the mythweb interface
>> * Ofcourse this is complete f#@$-up of the container principle, but it
>> works for me :-) (and was a nice learing experience)
>>
>> Any chance you can write this up and add it to the wiki? I always thought
> that containers were essentially VMs but from what you say above this isn't
> exactly so.
>
> Alternative methods for building and/or using a mythtv system are always
> of interest, especially if it can lead to more efficient use of hardware.
>
> --
>
> Mike Perkins
>
>
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>

I really do not like editing wiki's
But since I've been using mythtv for over a decade I think it's a fair
suggestion.
However, Like I said my container solution still needs work.
So it will be a work in progress for some time.

Cheers
Rob Verduijn
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