feat: add CLI shell and exec commands for pod terminal access#124
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feat: add CLI shell and exec commands for pod terminal access#124
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Add two new commands under `centml cluster`:
- `shell <id>` -- interactive terminal session (like docker exec -it)
- `exec <id> -- <command>` -- run a command and return output (like ssh host "cmd")
Both connect via WebSocket through the Platform API terminal proxy,
matching the same protocol used by the Web UI TerminalView.
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Replaces str.replace("https://", "wss://") with urllib.parse.urlparse
scheme replacement to avoid CodeQL py/incomplete-url-substring-sanitization.
Replace url.startswith() assertions with urllib.parse.urlparse() checks to satisfy CodeQL py/incomplete-url-substring-sanitization rule. Reformat both shell.py and test_shell.py with black.
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Add pyte as local terminal emulator (equivalent to xterm.js) to solve cursor positioning and line wrapping issues. Feed WebSocket output through pyte Screen/Stream and render only dirty lines with ANSI escape sequences.
shutil.get_terminal_size() returns (columns, lines), not (rows, cols). The swapped unpacking caused pyte Screen to be created with terminal line count as width, making the display extremely narrow.
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Summary
centml cluster shell <id>for interactive terminal sessions (likedocker exec -it)centml cluster exec <id> -- <command>for running commands and returning output (likessh host "cmd")get_status_v3()to SDK client for pod discoverywebsockets>=13.0dependencyChanges
centml/cli/shell.pytests/test_shell.pycentml/sdk/api.pyget_status_v3()method (+3 lines)centml/cli/main.pyshellandexeccommands (+3 lines)requirements.txtwebsockets>=13.0(+1 line)Test plan
centml cluster exec <id> -- echo helloreturns clean outputcentml cluster exec <id> -- cat /etc/os-releasereturns full file contentcentml cluster exec <id> -- nvidia-smi --query-gpu=name --format=csv,noheaderreturns GPU namecentml cluster exec <id> --shell sh -- echo testrespects shell optioncentml cluster shell <id>rejects non-TTY with clear errorpytest tests/test_shell.py)centml cluster shell <id>interactive mode (manual TTY test)