Conditionally starting the swupdate webserver

Conditionally starting the swupdate webserver

[Morten Bruun]

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Hi Yocto experts!

Background
----------------
I have a device that I build two different images for (test and prod). For
the prod variant I do not want the swupdate service to start the webserver.

Currently I have a swupdate.service that overwrites the default from
swupdate.

I have been experimenting with an approach where I use OVERRIDES to control
the inclusion of the systemd service.

Is this a "good" (tm) way of doing this? Or is there a better way?

my-test-image.bb
-----------------------

DISTRO_VARIANT = "test"


my-prod-image.bb
-----------------------

DISTRO_VARIANT = "prod"


swupdate_%.bbappend
-------------------------------

OVERRIDES:append = ":${DISTRO_VARIANT}"

do_install:test:append() {
  install -d ${D}/${systemd_unitdir}/system
  install -m 0644 ${WORKDIR}/hello-test.service ${D}/${systemd_unitdir}/system
}

do_install:prod:append() {
  install -d ${D}/${systemd_unitdir}/system
  install -m 0644 ${WORKDIR}/hello-prod.service ${D}/${systemd_unitdir}/system
}

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Re: [yocto] Conditionally starting the swupdate webserver

[Stefano Babic]

Hi Morten,

On 29.03.23 16:39, Morten Bruun wrote:
> Hi Yocto experts!
> 
> Background
> ----------------
> I have a device that I build two different images for (test and prod). 
> For the prod variant I do not want the swupdate service to start the 
> webserver.
> 
> Currently I have a swupdate.service that overwrites the default from 
> swupdate.

Why ? the default service will load configuration script from 
/usr/lib/swupdate, and you can already override what yo need.


> 
> I have been experimenting with an approach where I use OVERRIDES to 
> control the inclusion of the systemd service.
> 
> Is this a "good" (tm) way of doing this? Or is there a better way?

It is enough you do not install the swupdate-www package in the prod 
image. No Webserver is started.

Best regards,
Stefano Babic

> 
> my-test-image.bb <http://my-test-image.bb>
> -----------------------
> 
> DISTRO_VARIANT = "test"
> 
> 
> my-prod-image.bb <http://my-prod-image.bb>
> -----------------------
> 
> DISTRO_VARIANT = "prod"
> 
> 
> swupdate_%.bbappend
> -------------------------------
> 
> OVERRIDES:append = ":${DISTRO_VARIANT}"
> 
> do_install:test:append() {
>    install -d ${D}/${systemd_unitdir}/system
>    install -m 0644 ${WORKDIR}/hello-test.service ${D}/${systemd_unitdir}/system
> }
> 
> do_install:prod:append() {
>    install -d ${D}/${systemd_unitdir}/system
>    install -m 0644 ${WORKDIR}/hello-prod.service ${D}/${systemd_unitdir}/system
> }
> 
> 
> 
> 
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