Appendix – Building SNAP Container with Custom SPDK

The SNAP source package contains the files necessary for building a container with a custom SPDK.

To build the container:

1. Download and install the SNAP sources package:

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   [dpu] # dpkg -i /path/snap-sources_<version>_arm64.deb
           

2. Navigate to the src folder and use it as the development environment:

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   [dpu] # cd /opt/nvidia/nvda_snap/src
           

3. Copy the following to the container folder:

   • SNAP source package – required for installing SNAP inside the container

   • Custom SPDK – to container/spdk. For example:

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     [dpu] # cp /path/snap-sources_<version>_arm64.deb  container/
     [dpu] # git clone -b v23.01.1 --single-branch --depth 1 --recursive --shallow-submodules https://github.com/spdk/spdk.git container/spdk
             

4. Modify the spdk.sh file if necessary as it is used to compile SDPK.

5. To build the container:

   • For Ubuntu, run:

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     [dpu] # ./container/build_public.sh --snap-pkg-file=snap-sources_<version>_arm64.deb
             

   • For CentOS, run:

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     [dpu] # rpm -i snap-sources-<version>.el8.aarch64.rpm
     [dpu] # cd /opt/nvidia/nvda_snap/src/
     [dpu] # cp /path/snap-sources_<version>_arm64.deb container/
     [dpu] # git clone -b v23.01.1 --single-branch --depth 1 --recursive --shallow-submodules https://github.com/spdk/spdk.git container/spdk
     [dpu] # yum install docker-ce docker-ce-cli
     [dpu] # ./container/build_public.sh --snap-pkg-file=snap-sources_<version>_arm64.deb
             

6. Transfer the created image from the Docker tool to the crictl tool. Run:

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   [dpu] # docker save doca_snap:<version> doca_snap.tar
   [dpu] # ctr -n=k8s.io images import doca_snap.tar
           

   Warning

   To transfer the container image to other setups, refer to appendix "Appendix – Deploying Container on Setups Without Internet Connectivity".

7. To verify the image, run:

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   [DPU] #  crictl images
   IMAGE                                  TAG                   IMAGE ID            SIZE
   docker.io/library/doca_snap            <version>             79c503f0a2bd7       284MB
           

8. Edit the image filed in the container/doca_snap.yaml file. Run:

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   image: doca_snap:<version>
           

9. Use the YAML file to deploy the container. Run:

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   [dpu] # cp doca_snap.yaml /etc/kubelet.d/
           

   Warning

   The "Container deployment preparation steps" are required.