65 lines
1.8 KiB
Text
65 lines
1.8 KiB
Text
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Troubleshooting
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===============
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Error in manifest is not considered an error by cdist
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-----------------------------------------------------
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Situation: You are executing other scripts from a manifest.
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This script fails, but cdist does not recognise the error.
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An example script would be something like this:
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.. code-block:: sh
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% cat ~/.cdist/manifest/init
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"$__manifest/special"
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% cat ~/.cdist/manifest/special
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#!/bin/sh
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echo "Here is an unclean exiting script"
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somecommandthatdoesnotexist
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echo "I continue here although previous command failed"
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We can clearly see that **somecommandthatdoesnotexist**
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will fail in ~/.cdist/manifest/special. But as the custom
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script is not called with the -e flag (exit on failure) of shell,
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it does not lead to an error. And thus cdist sees the exit 0
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code of the last echo line instead of the failing command.
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All scripts executed by cdist carry the -e flag.
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To prevent the above from happening, there are three solutions available,
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two of which can be used in the calling script:
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.. code-block:: sh
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# Execute as before, but abort on failure
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sh -e "$__manifest/special"
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# Source the script in our namespace, runs in a set -e environment:
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. "$__manifest/special"
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The third solution is to include a shebang header in every script
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you write to use the -e flag:
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.. code-block:: sh
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% cat ~/.cdist/manifest/special
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#!/bin/sh -e
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...
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Using debug dump helper script
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------------------------------
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Since cdist stores data to local cache that can be used for debugging there
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is a helper script that dumps data from local cache,
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`cdist-dump <man1/cdist-dump.html>`_.
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For more info see:
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.. code-block:: sh
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cdist-dump -h
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Or from cdist git cloned directory:
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.. code-block:: sh
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./scripts/cdist-dump -h
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