search

AxisCommunications / acap-native-sdk-examples

Example code for APIs and features in AXIS Camera Application Platform (ACAP) Native SDK
Apache License 2.0
44 stars 25 forks source link

Examples do not work as intended. #276

Closed CoolBassist closed 2 months ago

CoolBassist commented 3 months ago

Describe the bug

I have noticed that trying to execute some of the examples from the "acap-native-sdk-examples" repo require some extra editing to get working. For example, download the files from the "axserial" example, and then follow the instructions exactly. When I did this, it just simply copied the files from ./app to ./build. To fix this I needed to edit the last line of the docker file to this :- RUN . /opt/axis/acapsdk/environment-setup* && acap-build .

Another example is the "axStorage" example. When running it, I had the following error in the appLog.

Failed to list storage devices. Error: (GDBus.Error:org.freedesktop.DBus.Error.AccessDenied: Rejected send message, 3 matched rules; type="method_call", sender=":1.407" (uid=997 pid=1960 comm="/usr/local/packages/axstorage/axstorage") interface="com.axis.Storage" member="GetAllStoragesInfo" error name="(unset)" requested_reply="0" destination=":1.205" (uid=211 pid=1257 comm="/usr/bin/storage_manager -n --serial-no B8A44F76D8"))

To solve this, I had to remove the "resources" object from the manifest, and instead use the "user" object with values of "sdk".

To reproduce

Download all files from a repo such as "axSerial", then follow the instructions exactly.

Environment

WSL: Ubuntu 22.04 Docker version 24.0.7, build 24.0.7-0ubuntu2~22.04.1

apljungquist commented 3 months ago

What firmware version are you targetting?

I experienced something similar with the axevent API and if I remember correctly I concluded that on versions prior to around 11.5 one has to use the sdk user, and on later firmwares one has use dynamic users. Not sure if this is the best page for explaining it, but it does talk about the difference.

pataxis commented 3 months ago

Hi @CoolBassist , thanks for reaching out!

I have noticed that trying to execute some of the examples from the "acap-native-sdk-examples" repo require some extra editing to get working.

When you say executing, do you mean building the Docker container image with the following command? docker build --tag <APP_IMAGE> .

If you mean that you had to replace the four last lines in axstorage Dockerfile, that is the here-documents (or heredocs) syntax (set on the first line with # syntax=docker/dockerfile:1) and it sounds like it could be that your Docker environment doesn't support it by default.

I do however think that Docker 24.04 should have support for it. You can test to set this environment variable in connection to build.

DOCKER_BUILDKIT=1 docker build --tag <APP_IMAGE> .

and/or you can build with buildx

docker buildx build --tag <APP_IMAGE> .