FIX - implement OCI runtime state command [Enhancement]#621
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abhaygoudannavar wants to merge 1 commit into
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FIX - implement OCI runtime state command [Enhancement]#621abhaygoudannavar wants to merge 1 commit into
abhaygoudannavar wants to merge 1 commit into
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Hello @abhaygoudannavar , this PR contains unrelated changes. Also please use a similar implementation with https://github.com/opencontainers/runc/blob/main/state.go |
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@cmainas, I have updated the PR to resolve both of your points:
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Implement the state subcommand for urunc, following the runc reference implementation. The command outputs container state as JSON to stdout, conforming to the OCI runtime specification. - Adds containerState struct matching OCI state schema - Dynamically checks process liveness via syscall.Kill(pid, 0) - Sets pid=0 and status=stopped if the process has exited - Registers stateCommand in main.go Signed-off-by: abhaygoudannavar <abhaysgoudnvr@gmail.com>
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Description
This PR implements the OCI
statecommand forurunc, which outputs the current state information of a container instance conforming to the OCI runtime specification.The implementation has been aligned with the reference
runcimplementation. Instead of blindly reading and marshalingstate.json, it dynamically verifies the process status (usingsyscall.Kill(pid, 0)) to detect if the VMM has exited. It formats the JSON output using a customcontainerStatestruct exactly asruncdoes to ensure orchestrators parsing the output receive the expected OCI schema.Related issues
How was this tested?
urunc.urunc state <container-id>while the container was running and verified the output correctly matched the OCI JSON schema with status"running".urunc state <container-id>again, verifying it correctly dynamically detected the stopped state (returningstatus: "stopped"andpid: 0).make unittestand verified no existing tests were broken.LLM usage
No usage
Checklist
make lint).make test_ctr,make test_nerdctl,make test_docker,make test_crictl).