CODEWITHSUNDEEP
salt-project
Hank Chow
Hank Chow

Reputation: 564

How to match those minions which don't have a certain custom grain?

Some of the minions have a grain like foo: bar while others don't have that grain. What should I do to match those minions which don't have the foo grain?

I have tried salt -G 'foo:' and salt -P 'foo:^$' but neither of them work.

Assume that there are 3 minions:

minion1:
    ----------
    foo: 
        bar
minion2:
    ----------
    foo: 
        baz
minion3:
    ----------
    foo:

Both minion1 and minion2 have the grain foo and minion3 is not defined this grain. How to match minion3 ONLY?

Upvotes: 0

Views: 643

Answers (1)

HTF
HTF

Reputation: 7270

You can use -P (Grains PCRE):

salt -P 'foo:^(?!bar)'

Python docs for re module says:

(?!...)

Matches if ... doesn’t match next. This is a negative lookahead assertion. For example, Isaac (?!Asimov) will match 'Isaac ' only if it’s not followed by 'Asimov'.

or just simply use a compound match with negation:

salt -C 'not G@foo:bar'

Upvotes: 1

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