how to write a system service to auto startup chromium on wayland with non-root user?

gonewithwind-peter · ‎05-12-2021

hi all

I am playing imx8 maaxboard and iwave boards,

I use the below system service can auto startup chromium on maaxboard wayland with root user, but it's not safe with root user, so I need to startup with non-root user.

I tried to modify it somewhere, but not work. eg , I changed one of the lines like this :ExecStart=sudo -u myuser /usr/bin/chromium --gpu-no-context-lost --enable-gpu-rasterization --start-fullscreen --kiosk --no-first-run --incognito http://localhost:3300/rpi.html > /dev/null 2>&1 &

but not work.

any help?

my service ,you can see it's root user with --no-sandbox option :

/etc/systemd/system/chromium.service

works in root user

----

Description=launch chromium

[Service]

User=root

Environment=DISPLAY=:0

Environment=XDG_RUNTIME_DIR="/run/user/0"

Type=oneshot

ExecStart=/bin/sleep 15

ExecStart=/usr/bin/chromium --no-sandbox --disable-infobars --user-data-dir=/tmp/chromium --gpu-no-context-lost --enable-gpu-rasterization --start-fullscreen --kiosk --no-first-run --incognito http://localhost:3300/rpi.html > /dev/null 2>&1 &

[Install]

WantedBy=multi-user.target

I posted my question at here too, I think this is a wayland system service question.

https://www.element14.com/community/message/302365/l/how-to-write-a-system-service-to-auto-startup-c...

Zhiming_Liu · ‎05-19-2021

Hi

I add test user to sudo permission and then use your root chromium.service,in test user: sudo systemctl start chromium

Description=launch chromium

[Service]

User=root

Environment=DISPLAY=:0

Environment=XDG_RUNTIME_DIR="/run/user/0"

Type=oneshot

ExecStart=/bin/sleep 15

ExecStart=/usr/bin/chromium --no-sandbox --disable-infobars --user-data-dir=/tmp/chromium --gpu-no-context-lost --enable-gpu-rasterization --no-first-run --incognito http://localhost:3300/rpi.html > /dev/null 2>&1 &

[Install]

WantedBy=multi-user.target

But it with --no-sandbox

gonewithwind-peter · ‎05-19-2021

hi @Zhiming_Liu

Thank you

sorry, I do not get your idea, you mean it can work with non-root user,

1. how to add sudo permission to a non-root test user?

2.what is final chromium.service ? is it like the below? Thank you.

Description=launch chromium

[Service]

User=root

Environment=DISPLAY=:0

Environment=XDG_RUNTIME_DIR="/run/user/0"

Type=oneshot

ExecStart=/bin/sleep 15

ExecStart=/usr/bin/chromium  --disable-infobars --user-data-dir=/tmp/chromium --gpu-no-context-lost --enable-gpu-rasterization --no-first-run --incognito http://localhost:3300/rpi.html > /dev/null 2>&1 &

#or
ExecStart= sudo /usr/bin/chromium  --disable-infobars --user-data-dir=/tmp/chromium --gpu-no-context-lost --enable-gpu-rasterization --no-first-run --incognito http://localhost:3300/rpi.html > /dev/null 2>&1 &

[Install]

WantedBy=multi-user.target

Zhiming_Liu · ‎05-19-2021

Hi

Here are my commands:

1.

useradd test

2.

passwd test

3.add test user to sudo

 usermod -G sudo test

4.add below text to /etc/sudoers

%sudo ALL=(ALL:ALL) ALL

5.reboot board, and login in test user

6.My chromium.service

Description=launch chromium

[Service]

User=root

Environment=DISPLAY=:0

Environment=XDG_RUNTIME_DIR="/run/user/0"

Type=oneshot

ExecStart=/bin/sleep 15

ExecStart=/usr/bin/chromium --no-sandbox --disable-infobars --user-data-dir=/tmp/chromium --gpu-no-context-lost --enable-gpu-rasterization --no-first-run --incognito http://localhost:3300/rpi.html > /dev/null 2>&1 &

[Install]

WantedBy=multi-user.target

7. use command sudo systemctl start chromium

gonewithwind-peter · ‎05-19-2021

@Zhiming_Liu

Thank you so much.

I mean we do not use the command:sudo systemctl start chromium

to start up chromium (it seems it still manually starts up chromium), just every time reboot or power up the board, the chromium can auto startup.

anyway I will test your command to create the sudo test-user(before I generated the test user in yocto local.conf when building image)

Zhiming_Liu · ‎05-19-2021

@gonewithwind-peter

You can add that command to init.rc , so the chromium will auto startup every time

gonewithwind-peter · ‎05-25-2021

@Zhiming_Liu

sorry, you solution and I both do not work.

any suggestion?

gonewithwind-peter · ‎05-19-2021

@Zhiming_Liu

Thank you

there is no init.rc in systemctl services (systemd ?):

-sh-4.4# cd /
-sh-4.4# cd etc/
-sh-4.4# find . -name init.rc
-sh-4.4#

before we used init.rc or init.d (something like that), but now in systemctl service (systemd), I think we can not use it. we only can write xxxx.service to auto start a servce. anyway, let me try.

gonewithwind-peter · ‎05-19-2021

@Zhiming_Liu

maybe I find a way. I have another service, in the service, it can call a script to start up my configs , I can put into the command :sudo systemctl start chromium

I will try it. if it works, I will reply here.

Zhiming_Liu · ‎05-17-2021

Hi

I am building chromium and will test auto start service later.

BR

Zhiming