Note: CRFS works best with images compressed in the "stargz" format, which is an extension of the standard tar.gz format optimized for random access.
Run the command: MakeCpk.exe -filelist input.csv -output output.cpk . Troubleshooting CPK Files cri file system tools link
Configure the output file settings (e.g., compression, alignment). Run the to create the .cpk file. Command Line Tools for Automation Note: CRFS works best with images compressed in
| Problem | Tool command | |--------------------------------------------|-------------------------------------------------------------------------------| | Pod stuck in ContainerCreating (mount) | crictl inspectp <pod-id> \| grep -A 10 mounts | | no such file or directory inside container | crictl exec <container> ls -la /path and compare with host ls -la /var/lib/kubelet/pods/... | | Image pull fails – no space left | crictl images -q \| xargs crictl rmi and crictl prune | | Filesystem still used after pod deletion | findmnt -t overlay \| grep /var/lib/containerd then crictl rmp -f <sandbox> | Run the to create the
A widely used open-source library and reference implementation for extracting contents from CRI File System archives (CPK files).
: Use a command like YACpkTool.exe .
In the modern world of cloud-native computing, containers are ephemeral, but data is eternal. The bridge between a container’s short lifespan and persistent storage is the . For DevOps engineers, SREs, and system administrators, understanding the "CRI file system tools link" —the relationship between the CRI specification and the underlying filesystem management utilities—is not just a technical curiosity; it is a necessity for debugging, security, and performance tuning.