RELABEL_CONFIGS: drop namespace

[Nabil LAABID]

Hi All,

I am currently facing with a relabel config issue.

I would like to drop all namespaces which not contain the word NAMESPACE1, 

For this aim I try with the following regex expression :

        relabel_configs:

        - source_labels: [__meta_kubernetes_namespace]

          regex: '^((?!NAMESPACE1).)*$'

          action: drop

But I am facing with a syntax error (invalid orunsupported Perl syntax: `(?!` )

level=error ts=2020-03-24T10:07:01.722Z caller=main.go:740 err="error loading config from \"/etc/prometheus/prometheus.yml\": couldn't load configuration (--config.file=\"/etc/prometheus/prometheus.yml\"): parsing YAML file /etc/prometheus/prometheus.yml: error parsing regexp: invalid or unsupported Perl syntax: `(?!`"

Any idea?

Thanks 

Nabil L.

[Julien Pivotto]

On 24 Mar 03:14, Nabil LAABID wrote:
> Hi All,
>
>
> I am currently facing with a relabel config issue.
> I would like to drop all namespaces which not contain the word NAMESPACE1,
> For this aim I try with the following regex expression :
>

This is sufficient:


relabel_configs:
- source_labels: [__meta_kubernetes_namespace]
regex: '.*NAMESPACE1.*'

action: drop

>
>
> But I am facing with a syntax error (invalid orunsupported Perl syntax:
> `(?!` )
>
> level=error ts=2020-03-24T10:07:01.722Z caller=main.go:740 err="error
> loading config from \"/etc/prometheus/prometheus.yml\": couldn't load
> configuration (--config.file=\"/etc/prometheus/prometheus.yml\"): parsing
> YAML file /etc/prometheus/prometheus.yml: error parsing regexp: invalid or
> unsupported Perl syntax: `(?!`"
>
>
> Any idea?
>
> Thanks
>
> Nabil L.
>

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--
(o- Julien Pivotto
//\ Open-Source Consultant
V_/_ Inuits - https://www.inuits.eu

[Nabil L.]

Thanks a lot Julien, I will try the expression based on your feedback.

In the same time I just realize the "keep" actions drops everything that doesn't match an expression ^^

Thanks again

[Julien Pivotto]

On 24 Mar 03:32, Nabil L. wrote:
> Thanks a lot Julien, I will try the expression based on your feedback.
>
> In the same time I just realize the "keep" actions drops everything that
> doesn't match an expression ^^
>
>
> Thanks again

Oh yes indeed you need keep.

:)

>
>
>
> Le mardi 24 mars 2020 11:14:29 UTC+1, Nabil L. a écrit :
> >
> > Hi All,
> >
> >
> > I am currently facing with a relabel config issue.
> > I would like to drop all namespaces which not contain the word NAMESPACE1,
> > For this aim I try with the following regex expression :
> >
> >
> > relabel_configs:
> > - source_labels: [__meta_kubernetes_namespace]
> > regex: '^((?!NAMESPACE1).)*$'
> > action: drop
> >
> >
> > But I am facing with a syntax error (invalid orunsupported Perl syntax:
> > `(?!` )
> >
> > level=error ts=2020-03-24T10:07:01.722Z caller=main.go:740 err="error
> > loading config from \"/etc/prometheus/prometheus.yml\": couldn't load
> > configuration (--config.file=\"/etc/prometheus/prometheus.yml\"): parsing
> > YAML file /etc/prometheus/prometheus.yml: error parsing regexp: invalid or
> > unsupported Perl syntax: `(?!`"
> >
> >
> > Any idea?
> >
> > Thanks
> >
> > Nabil L.
> >
>

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