Difference between revisions of "Docker"

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== Docker ==
 
== Docker ==
 +
 +
=== External Documentation ===
 +
 +
* Synology Wiki (German):
 +
https://www.synology-wiki.de/index.php/TvHeadend_mit_Docker_und_Sundtek_SkyTV_Ultimate
  
 
=== On the host ===
 
=== On the host ===
Line 7: Line 12:
  
 
If you want to install the linux driver in a docker environment a few things need to be taken care of.
 
If you want to install the linux driver in a docker environment a few things need to be taken care of.
−
In this example a tvheadend Docker is installed on a Synology NAS:
+
 
 +
==== Device Nodes on the Host ====
 +
 
 +
Very important /dev/bus/usb contain the interface to the raw USB devices which is used by the sundtek driver.
 +
However one special (and a little bit messy part of docker) is that it also needs to know the major/minor IDs which are allowed to be forwarded - before creating and before starting the docker image, that's why nodes in /dev/dvb need to be pre-created on the host.
 +
 
 +
If you install the driver on the host you should create a configuration file which contains following text:
 +
enabledocker=on
 +
 
 +
this will cause that the driver on the native host (not in the docker) will create dummy adapter nodes in /dev/dvb, the driver itself will not try to access the USB device - it will only create the files if enabledocker=on is set in the configuration file and exit immediately.<br>
 +
On the host:
 +
<pre>
 +
sudo -s
 +
echo "enabledocker=on" > /etc/sundtek.conf
 +
</pre>
 +
 
 +
You can also create them manually if you want (see next section):
 +
 
 +
===== Without installing the driver on the host =====
 +
 
 +
So the driver on the host has no special function it would just create /dev/dvb devicenodes and exist immediately.
 +
You can create those dummies manually (but those need to be there before creating the docker image and before starting the docker image)
 +
 
 +
<pre>
 +
mkdir -p /dev/dvb/adapter0
 +
mknod /dev/dvb/adapter0/frontend0 c 212 1
 +
mknod /dev/dvb/adapter0/dvr0 c 212 5
 +
mknod /dev/dvb/adapter0/demux0 c 212 3
 +
mkdir -p /dev/dvb/adapter1
 +
mknod /dev/dvb/adapter1/frontend0 c 212 7
 +
mknod /dev/dvb/adapter1/dvr0 c 212 11
 +
mknod /dev/dvb/adapter1/demux0 c 212 9
 +
mkdir -p /dev/dvb/adapter2
 +
mknod /dev/dvb/adapter2/frontend0 c 212 13
 +
mknod /dev/dvb/adapter2/dvr0 c 212 17
 +
mknod /dev/dvb/adapter2/demux0 c 212 15
 +
</pre>
 +
 
 +
===== Synology NAS =====
 +
 
 +
You can install the driver on the host and check the option "Enable Docker" in the Configuration menu. When this is checked the driver will only create those dummy nodes on the host and exit immediately.
 +
 
 +
==== Creating a Docker Image ====
  
 
The docker itself needs to be created with some -device flags
 
The docker itself needs to be created with some -device flags
 +
 +
Alpine Linux:
  
 
<pre>
 
<pre>
Line 21: Line 70:
 
</pre>
 
</pre>
  
−
Very important /dev/bus/usb because this contains the interface to the raw USB devices which is used by the sundtek driver.
+
Linuxserver / Tvheadend
−
However one special (and a little bit messy part of docker is that it also needs to know the major/minor IDs which are allowed to be forwarded, that's why /dev/dvb needs to be pre-created on the host as dummy files.
 
  
−
The driver on the host should have a configuration file which contains following text:
+
<pre>
−
enabledocker=on
+
docker create \
−
 
+
  --name=tvheadend \
−
this will cause that the driver on the native host (not in the docker) will create dummy adapter nodes in /dev/dvb, the driver itself will not try to access the USB device - it will only create the files if enabledocker=on is set in the configuration file.
+
  --net=bridge \
 +
  -v <path to data>:/config \  <- Pfad anpassen! / modify path (and remove the comment of course)
 +
  -v <path to recordings>:/recordings \  <- Pfad anpassen! / modify path (and remove the comment of course)
 +
  -p 9981:9981 \
 +
  -p 9982:9982 \
 +
  --device=/dev/dvb \
 +
  --device=/dev/bus/usb
 +
  linuxserver/tvheadend
 +
</pre>
  
 
=== Inside the docker ===
 
=== Inside the docker ===
Line 33: Line 89:
 
Inside the docker unfortunately you only have one shot if you do it wrong you have to re-create the docker and re-do this step.
 
Inside the docker unfortunately you only have one shot if you do it wrong you have to re-create the docker and re-do this step.
 
Usually our customers install the drivers inside the docker in /config
 
Usually our customers install the drivers inside the docker in /config
 +
 +
To enter a docker image:
 +
<pre>
 +
docker exec -it tvheadend /bin/sh
 +
</pre>
  
 
Download the netinstall script:
 
Download the netinstall script:
Line 53: Line 114:
  
 
one customer also needed to modify the preset current limit of the tuner, he had to place lnblimit=1000ma (case sensitive in sundtek.conf inside the docker)
 
one customer also needed to modify the preset current limit of the tuner, he had to place lnblimit=1000ma (case sensitive in sundtek.conf inside the docker)
 +
 +
== Unraid ==
 +
 +
All the sundtek devices work with Unraid. The installation is comfortably handled by a Sundtek Driver plugin in the Unraid environment. So just install the plugin and you're set.
 +
 +
 +
--- the old documentation for unraid follows here, we just keep it here for the record ---
 +
 +
 +
1. Set up the driver on the host system
 +
 +
Open a terminal as root (console) and run:
 +
<pre>
 +
cd /tmp
 +
wget http://sundtek.de/media/sundtek_netinst.sh
 +
chmod 777 sundtek_netinst.sh
 +
./sundtek_netinst.sh -dockerhost
 +
</pre>
 +
 +
(this will only take care that some dummy nodes are created in /dev/dvb/, access control will be handled by major/minor numbers of the existing files. When the driver is started on the host it will exit directly due to the dockerhost flag and only create the nodes)
 +
 +
 +
basically all this does is
 +
<pre>
 +
mkdir -p /dev/dvb/adapter0
 +
mkdir -p /dev/dvb/adapter1
 +
#crwxrwxrwx 1 root root 212, 1 Dec 19 20:44 frontend0
 +
#crwxrwxrwx 1 root root 212, 5 Dec 19 20:44 dvr0
 +
#crwxrwxrwx 1 root root 212, 3 Dec 19 20:44 demux0
 +
mknod /dev/dvb/adapter0/frontend0 c 212 1
 +
mknod /dev/dvb/adapter0/dvr0 c 212 5
 +
mknod /dev/dvb/adapter0/demux0 c 212 3
 +
#crwxrwxrwx 1 root root 212,  7 Dec 19 20:44 frontend0
 +
#crwxrwxrwx 1 root root 212, 11 Dec 19 20:44 dvr0
 +
#crwxrwxrwx 1 root root 212,  9 Dec 19 20:44 demux0
 +
mknod /dev/dvb/adapter1/frontend0 c 212 7
 +
mknod /dev/dvb/adapter1/dvr0 c 212 11
 +
mknod /dev/dvb/adapter1/demux0 c 212 9
 +
</pre>
 +
 +
2. Set up the driver inside the tvheadend docker
 +
 +
... install the tvheadend docker, add an extra device driver for /dev/bus/usb
 +
 +
open the host terminal and enter the tvheadend docker image:
 +
<pre>
 +
docker exec -it tvheadend /bin/sh
 +
cd /tmp
 +
wget http://sundtek.de/media/sundtek_netinst.sh
 +
chmod 777 sundtek_netinst.sh
 +
./sundtek_netinst.sh -docker -use-custom-path /config
 +
</pre>
 +
 +
(this will rename the tvheadend binary to tvheadend.bin and put a script in between which will start the driver inside the docker - followed by the actual tvheadend binary).
 +
 +
 +
3. that's it restart the tvheadend docker.
 +
 +
== FAQ ==
 +
 +
=== Stick wird nicht im Docker angezeigt ===
 +
 +
Er findet leider den Stick nicht per Docker, warum auch immer…im Verzeichnis ist er aber vorhanden.
 +
[[File:lsusbdocker.png]]
 +
 +
----
 +
 +
1. Die Pfade sollen nicht zwischen den Klammern stehen, diese sollen entfernt werden (<, >)
 +
<pre>
 +
-v /home/pi/tvheadend/data:/config
 +
-v /home/pi/tvheadend/recordings:/config
 +
</pre>
 +
2. Zur Sicherheit kein Space zwischen --device= /dev/bus/dvb
 +
 +
3. ls /dev/dvb auf dem Host muss adapter1 usw . anzeigen.
 +
 +
Wurde der Treiber installiert, /config/opt/bin/mediaclient -e sollte den Tuner im Docker anzeigen.
 +
https://sundtek.de/wiki/index.php?title=Docker#Inside_the_docker (so springt man in's Docker rein).

Latest revision as of 11:04, 8 October 2024

Docker

External Documentation

  • Synology Wiki (German):

https://www.synology-wiki.de/index.php/TvHeadend_mit_Docker_und_Sundtek_SkyTV_Ultimate

On the host

This is the step that has to be taken care about on the native host (outside of the docker image). The driver can run in non-privileged mode inside the docker. Various libc / musl / uclibc images are supported.

If you want to install the linux driver in a docker environment a few things need to be taken care of.

Device Nodes on the Host

Very important /dev/bus/usb contain the interface to the raw USB devices which is used by the sundtek driver. However one special (and a little bit messy part of docker) is that it also needs to know the major/minor IDs which are allowed to be forwarded - before creating and before starting the docker image, that's why nodes in /dev/dvb need to be pre-created on the host.

If you install the driver on the host you should create a configuration file which contains following text: enabledocker=on

this will cause that the driver on the native host (not in the docker) will create dummy adapter nodes in /dev/dvb, the driver itself will not try to access the USB device - it will only create the files if enabledocker=on is set in the configuration file and exit immediately.
On the host: 

sudo -s
echo "enabledocker=on" > /etc/sundtek.conf

You can also create them manually if you want (see next section):

Without installing the driver on the host

So the driver on the host has no special function it would just create /dev/dvb devicenodes and exist immediately. You can create those dummies manually (but those need to be there before creating the docker image and before starting the docker image) 

mkdir -p /dev/dvb/adapter0
mknod /dev/dvb/adapter0/frontend0 c 212 1
mknod /dev/dvb/adapter0/dvr0 c 212 5
mknod /dev/dvb/adapter0/demux0 c 212 3
mkdir -p /dev/dvb/adapter1
mknod /dev/dvb/adapter1/frontend0 c 212 7
mknod /dev/dvb/adapter1/dvr0 c 212 11
mknod /dev/dvb/adapter1/demux0 c 212 9
mkdir -p /dev/dvb/adapter2
mknod /dev/dvb/adapter2/frontend0 c 212 13
mknod /dev/dvb/adapter2/dvr0 c 212 17
mknod /dev/dvb/adapter2/demux0 c 212 15
Synology NAS

You can install the driver on the host and check the option "Enable Docker" in the Configuration menu. When this is checked the driver will only create those dummy nodes on the host and exit immediately.

Creating a Docker Image

The docker itself needs to be created with some -device flags

Alpine Linux: 

docker create --name alpinelinux 
                     --net=bridge 
                     -p 9981:9981 
                     -p 9982:9982 
                     --device=/dev/dvb 
                     --device=/dev/bus/usb 
                     -t alpine /bin/sh

Linuxserver / Tvheadend 

docker create \
  --name=tvheadend \
  --net=bridge \
  -v <path to data>:/config \  <- Pfad anpassen! / modify path (and remove the comment of course)
  -v <path to recordings>:/recordings \   <- Pfad anpassen! / modify path (and remove the comment of course)
  -p 9981:9981 \
  -p 9982:9982 \
  --device=/dev/dvb \
  --device=/dev/bus/usb
  linuxserver/tvheadend

Inside the docker

Inside the docker unfortunately you only have one shot if you do it wrong you have to re-create the docker and re-do this step. Usually our customers install the drivers inside the docker in /config

To enter a docker image: 

docker exec -it tvheadend /bin/sh

Download the netinstall script: 

wget http://sundtek.de/media/sundtek_netinst.sh
chmod 777 sundtek_netinst.sh
./sundtek_netinst.sh -docker -use-custom-path /config

The installer will rename the tvheadend binary in /usr/bin to tvheadend.bin and places a script instead which will automatically start the driver.

this will place the driver in /config

Usually you will want to mount a local directory inside the docker, this can basically be configured via the Synology Webfrontend. When doing that you need to take care that the user inside the docker also has access to that folder otherwise you will get a permission denied.

You can use the tvheadend start script to change the permissions if you need that, /usr/bin/tvheadend add chmod 777 /path/to/videodirectory

Misc

one customer also needed to modify the preset current limit of the tuner, he had to place lnblimit=1000ma (case sensitive in sundtek.conf inside the docker)

Unraid

All the sundtek devices work with Unraid. The installation is comfortably handled by a Sundtek Driver plugin in the Unraid environment. So just install the plugin and you're set.


--- the old documentation for unraid follows here, we just keep it here for the record ---


1. Set up the driver on the host system

Open a terminal as root (console) and run: 

cd /tmp
wget http://sundtek.de/media/sundtek_netinst.sh
chmod 777 sundtek_netinst.sh
./sundtek_netinst.sh -dockerhost

(this will only take care that some dummy nodes are created in /dev/dvb/, access control will be handled by major/minor numbers of the existing files. When the driver is started on the host it will exit directly due to the dockerhost flag and only create the nodes)


basically all this does is 

mkdir -p /dev/dvb/adapter0
mkdir -p /dev/dvb/adapter1
#crwxrwxrwx 1 root root 212, 1 Dec 19 20:44 frontend0
#crwxrwxrwx 1 root root 212, 5 Dec 19 20:44 dvr0
#crwxrwxrwx 1 root root 212, 3 Dec 19 20:44 demux0
mknod /dev/dvb/adapter0/frontend0 c 212 1
mknod /dev/dvb/adapter0/dvr0 c 212 5
mknod /dev/dvb/adapter0/demux0 c 212 3
#crwxrwxrwx 1 root root 212,  7 Dec 19 20:44 frontend0
#crwxrwxrwx 1 root root 212, 11 Dec 19 20:44 dvr0
#crwxrwxrwx 1 root root 212,  9 Dec 19 20:44 demux0
mknod /dev/dvb/adapter1/frontend0 c 212 7
mknod /dev/dvb/adapter1/dvr0 c 212 11
mknod /dev/dvb/adapter1/demux0 c 212 9

2. Set up the driver inside the tvheadend docker

... install the tvheadend docker, add an extra device driver for /dev/bus/usb

open the host terminal and enter the tvheadend docker image: 

docker exec -it tvheadend /bin/sh
cd /tmp
wget http://sundtek.de/media/sundtek_netinst.sh
chmod 777 sundtek_netinst.sh
./sundtek_netinst.sh -docker -use-custom-path /config

(this will rename the tvheadend binary to tvheadend.bin and put a script in between which will start the driver inside the docker - followed by the actual tvheadend binary).


3. that's it restart the tvheadend docker.

FAQ

Stick wird nicht im Docker angezeigt

Er findet leider den Stick nicht per Docker, warum auch immer…im Verzeichnis ist er aber vorhanden. Lsusbdocker.png

1. Die Pfade sollen nicht zwischen den Klammern stehen, diese sollen entfernt werden (<, >) 

-v /home/pi/tvheadend/data:/config
-v /home/pi/tvheadend/recordings:/config

2. Zur Sicherheit kein Space zwischen --device= /dev/bus/dvb

3. ls /dev/dvb auf dem Host muss adapter1 usw . anzeigen.

Wurde der Treiber installiert, /config/opt/bin/mediaclient -e sollte den Tuner im Docker anzeigen. https://sundtek.de/wiki/index.php?title=Docker#Inside_the_docker (so springt man in's Docker rein).

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