forked from ungleich-public/cdist
27 lines
1.3 KiB
Text
27 lines
1.3 KiB
Text
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1. Manifests need type explorers to be run before
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Only this way the manifest can use the values
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2. Type explorers can depend on the (successful) execution of other objects
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A type explorer may lookup values (ownership, size, processes, etc.)
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that are depending on the code of other objects.
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3. The 'require="a" b' dependency specifies only that execution of b needs to wait until a is finished
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Other requirements given at another position may not be
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executed before b, as cdist interprets require="a" as
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"a is everything that is needed to realise b"
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4. The 'require' state is thus *not* suitable to trigger reloads
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A type b, which uses the require="" statement to wait for all
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require="" dependencies, may be executed in an incomplete
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status.
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5. Depending on multiple dependencies defined at different locations requires all objects to be present
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Because otherwise the dependent object cannot be sure that the
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list of objects it waits for is complete.
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6. If a statement requires all objects to be present, all manifests must have run already.
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If all manifests have run already, also all type explorers have run already (#1).
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If all type explorers have run already, some objects may have been finished completly already (#2).
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7. Because of #4 and #6, we need to introduce another dependency that allows to trigger reload
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