Change Context

[zawyelwin]

How Can I change the current context ?

[travisghansen]

Thanks for reaching out! It was originally never intended to switch contexts for a client instance so it has been assumed you'd have dedicated files for each context necessary.

Can you describe your scenario to help me understand the use case?

[zawyelwin]

I have a config file with multiple clusters and want to loop through the clusters and check some status and grab some contents. Can u give me some suggestions on doing so ? Thanks for the response.

[travisghansen]

Ah yeah, that's an interesting use case. Probably best to add a method on the config class that iterates the various contexts. Would this hypothetical code suit your needs (generally speaking)?

foreach($config->getContexts() as $context) {
  $client = new Client($context);
  ...
}

[travisghansen]

@zawyelwin do you intend to run stuff as '1 and done' or are you attempting to build a long-running controller?

[zawyelwin]

That will be a long-running controller.

[travisghansen]

Ok sounds good. I've got this implemented in master FYI. Got a couple more things to consider but likely in the state it will be in for the next release.

[travisghansen]

This is done and snapped in version v0.2.0.

https://github.com/travisghansen/kubernetes-client-php/blob/master/src/KubernetesClient/Config.php#L231

There are a couple different approaches you can take to the iteration process:

• build a config object and then invoke getParsedConfigFile() which is an array with a contexts key which will have all your contexts including the name
• you can then modify the above object invoking $config->useContext($contextName) as appropriate
• you could leave the original config object unaltered but use it for iteration only and create new instances passing in the contextName to public static function BuildConfigFromFile($path = null, $contextName = null) or just creating it without params and then invoking useContext($contextName) on each new object

If you have any questions let me know, I think it will be pretty self-explanatory.