Add documentation on how to add a LAVA lab

Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org>
Change-Id: I3a70e7dcfd4e517256dff3b167139cecb0476f4f
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/documentation/+/26139

diff --git a/docs/6_How_To_Contribute/A_How_to_setup_your_own_AGL_LAVA_Lab.md b/docs/6_How_To_Contribute/A_How_to_setup_your_own_AGL_LAVA_Lab.md
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+
+## Prerequisites ##
+
+As well as the packages docker, docker-compose and pyyaml mentioned in the top
+
+level README, you will need the following:
+
+  
+
+1) The following ports are forwarded to docker and therefore need to be kept free
+
+on the host machine:
+
+- 69/UDP: proxyfied to the slave for TFTP
+
+- 80: proxyfied to the slave for TODO (transfer overlay)
+
+- 5500: proxyfied to the slave for Notification
+
+- 55950-56000: proxyfied to the slave for NBD
+
+2) You will need a remote power switch to remotely power the DUTs on and off.
+
+3) You need to have an account with lava.automotivelinux.org. Please contact the
+
+agl-dev-community mailing list if you would like an account, and include that you would
+
+like to create your own lab in the email so that the relevant user permissions
+
+can be set.
+
+  
+
+## Steps to create your own LAVA lab ##
+
+  
+
+1) Clone AGL lava-docker image:
+
+```
+
+git clone https://git.automotivelinux.org/AGL/lava-docker.git
+
+cd lava-docker
+
+```
+
+  
+
+2) On the LAVA master web GUI, create a new API token:
+
+https://lava.automotivelinux.org/api/tokens/
+
+  
+
+3) Connect all the DUTs' serial to usb and ethernet connections to the host.
+
+
+4) Edit the boards.yaml file:
+
+- Copy the API token you created in step 2 in the place of <generated_lab_token>.
+
+- Add details of each board connected to the lab. See the top level README for
+
+instructions. You will need the following:
+
+- any custom options you require in the kernel args
+
+- uart idvendor, idproduct, devpath
+
+- power on, off and reset commads for the power switch
+
+  
+
+To get the uart idvendor and idproduct, unplug and re-plugin the USB cable of the
+
+device in question and then find the details in the latest output of:
+
+```
+
+sudo dmesg | grep idvendor
+
+```
+
+  
+
+To get the uart devpath, run the command:
+
+```
+
+udevadm info -a -n /dev/ttyUSB1 |grep devpath | head -n1
+
+```
+
+  
+
+NOTE: Make sure you have at least one "board" included. (It is easiest to keep
+
+qemu).
+
+  
+
+5) Run the automated setup script:
+
+```
+
+./start.sh slave
+
+```
+
+  
+
+7) Check the web GUI to see if the lab has successfully connected to the LAVA
+
+master: https://lava.automotivelinux.org/scheduler/allworkers. If it isn't, run the
+
+following command for debugging:
+
+```
+
+docker-exec -it <name_of_docker_container> cat /var/log/lava-dispatcher/lava-slave.log
+
+```
+
+To identify the container name run the following to list the running containers:
+
+```
+
+docker ps
+
+```
+
+  
+
+LAVA logs can be found in `/var/log/lava-dispatcher/`.
+
+  
+
+8) Helper scripts
+
+There are a few helper scripts to automate starting/stopping the lab.
+
+```
+
+./start.sh slave
+
+./restart.sh slave
+
+./stop.sh slave
+
+```
+
+  
+
+## Adding new device-type templates ##
+
+  
+
+Not all device types are supported by default. Templates for new devices will
+
+need to be added to the LAVA master. Please submit new templates to the agl-dev-community
+
+mailing list.
+
+  
+
+Before you submit any new device-type templates, please verify that they work.
+
+You can verify that they work in LAVA by carrying out the following instructions:
+
+1) Install lavacli on Debian Stretch or Ubuntu 18.04 and later (if you don't
+
+have a compatible OS, please see https://lava.automotivelinux.org/api/help/ for an
+
+alternative way to use the API)
+
+2) Create your lavacli config file
+
+```
+
+touch ~/.config/lavacli.yaml
+
+```
+
+3) Configure this file to look like the following (note: use the first token
+
+created in https://lava.automotivelinux.org/api/tokens/)
+
+```
+
+default:
+
+uri: https://lava.automotivelinux.org/RPC2
+
+username: <username>
+
+token: <API_token>
+
+```
+
+4) Add your device template to the master
+
+```
+
+lavacli device-types template set <device-type-name> <device-type-name>.yaml
+
+```
+
+NOTE: make sure your device-type templates always follow the following naming scheme:
+
+```<device-type-name>.yaml```