configure kube-proxy to run with unset conntrack param when in lxc

[wwwtyro]

What this PR does / why we need it: Configures the Juju Charm code to run kube-proxy with conntrack-max-per-core set to 0 when in an lxc as a workaround for issues when mounting /sys/module/nf_conntrack/parameters/hashsize

Release note:

Configures the Juju Charm code to run kube-proxy with conntrack-max-per-core set to 0 when in an lxc as a workaround for issues when mounting /sys/module/nf_conntrack/parameters/hashsize

[k8s-ci-robot]

Hi @wwwtyro. Thanks for your PR.

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[cblecker]

/ok-to-test

[wwwtyro]

@marcoceppi @Cynerva Care to take a gander?

[Cynerva]

/assign @Cynerva

[Cynerva]

/lgtm
/approve no-issue

Thanks for this, looks good 👍

[k8s-github-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Cynerva, wwwtyro

Associated issue requirement bypassed by: Cynerva

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• cluster/juju/OWNERS [Cynerva]

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[k8s-github-robot]

Automatic merge from submit-queue (batch tested with PRs 48399, 48450, 48144)