Parameterize .service file in meson

Depending on environment, TelemetryService may require some services
to be present in the system, or specific order of starting them. This
may be especially needed for some additional sensors providers, or
persistency sync services.

This change is parametrizing following .service file options:
- After=
- Before=
- Requires=
- Wants=

They can be passed as array option to meson, like this:
  -Dservice-[option]="[....]"
Example:
  -Dservice-wants="['some.service', 'other.service']"

Testing done:
- .service file is configured properly when new 4 options are passed.
- .service file remains unchanged if none of new options are passed.

Change-Id: I0982263c8981355db15527163460cc75ae197044
Signed-off-by: Szymon Dompke <szymon.dompke@intel.com>
3 files changed
tree: 0cf57e965140609f8d7048bea1a6c47b2516cd2b
  1. redfish-tests/
  2. scripts/
  3. src/
  4. subprojects/
  5. tests/
  6. .clang-format
  7. .gitignore
  8. LICENSE
  9. meson.build
  10. meson_options.txt
  11. OWNERS
  12. README.md
  13. xyz.openbmc_project.Telemetry.service.in
README.md

Telemetry

This component implements middleware for sensors and metrics aggregation.

Capabilities

This application is implementation of Telemetry proposed in OpenBMC design docs [1].

It's responsible for:

  • on-demand creation of metric reports,
    • aggregated sets of sensor values available in system [2],
  • access to metric report in both pull and push model (triggers),
  • run-time monitoring of sensor[3] updates.

Use-cases

  • generic and centralized way to observe telemetry data inside system
  • back-end for Redfish TelemetryService[4]

How to build

There are two way to build telemetry service:

  • using bitbake in yocto environment
  • using meson as native build

To build it using bitbake follow the guide from OpenBMC docs[5]. To build it using meson follow the quick guide to install meson[6] and then run below commands

meson build
cd build
ninja

After successful build you should be able to run telemetry binary or start unit tests

./tests/telemetry-ut
./telemetry

In case if system is missing boost dependency, it is possible to build it locally and set BOOST_ROOT environment variable to location of built files for meson. After this change meson should be able to detect boost dependency. See [7] for more details.

Notes

More information can be found in OpenBMC docs repository [8].

References

  1. OpenBMC platform telemetry design
  2. Sensor support for OpenBMC
  3. dbus-sensors
  4. Redfish TelemetryService
  5. Yocto-development
  6. Meson-Quick-Guide
  7. Meson-Boost-dependency
  8. OpenBMC-docs-repository