kube-proxy won't start with lxd-profile

[Jorge Niedbalski]

[Description]

Latest master
Latest charmed-kubernetes

kube-proxy won't start on kubernetes-worker units when using this
LXD profile https://github.com/charmed-kubernetes/charm-kubernetes-master/blob/master/lxd-profile.yaml

units will fail with the following message:

I0314 19:16:08.784246 64633 conntrack.go:100] Set sysctl 'net/netfilter/nf_conntrack_tcp_timeout_established' to 86400
F0314 19:16:08.784459 64633 server.go:495] open /proc/sys/net/netfilter/nf_conntrack_tcp_timeout_established: no such file or directory

[George Kraft (cynerva)]

I'm unable to reproduce this. I can deploy kubernetes-master on LXD (letting Juju apply the LXD profile automatically) and I do not encounter the fatal error:

I0323 19:02:21.097949 55356 conntrack.go:100] Set sysctl 'net/netfilter/nf_conntrack_tcp_timeout_established' to 86400
I0323 19:02:21.098058 55356 conntrack.go:100] Set sysctl 'net/netfilter/nf_conntrack_tcp_timeout_close_wait' to 3600
I0323 19:02:21.174632 55356 config.go:315] Starting service config controller
...

Please provide reproduction steps.