Thanks to @dezgeg for prototype implementation, I've cleaned it up and added documentation.wip/yesman
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<section xmlns="http://docbook.org/ns/docbook" |
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xmlns:xlink="http://www.w3.org/1999/xlink" |
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xmlns:xi="http://www.w3.org/2001/XInclude" |
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version="5.0" |
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xml:id="sec-debugging-nixos-tests"> |
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<title>Debugging NixOS tests</title> |
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<para> |
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Tests may fail and infrastructure offers access to inspect machine state. |
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</para> |
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<para> |
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To prevent test from stopping and cleaning up, insert a sleep command: |
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</para> |
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<programlisting> |
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$machine->succeed("sleep 84000"); |
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</programlisting> |
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<para> |
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As soon as machine starts run as root: |
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</para> |
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<programlisting> |
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nix-shell -p socat --run "socat STDIO,raw,echo=0,escape=0x11 UNIX:/tmp/nix-build-vm-test-run-*.drv-0/vm-state-machine/backdoor" |
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</programlisting> |
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<para> |
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You may need to find the correct path, replacing <literal>/tmp</literal>, <literal>*</literal> or <literal>machine</literal>. |
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</para> |
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<para> |
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Press "enter" to open up console and login as "root". After you're done, press "ctrl-q" to exit the console. |
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</para> |
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</section> |
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