Attempt 2 at vpning, splitting files with <tls-auth> to chrome os

[stuffbreakswithme]

I seem to never get things right, so here I go again. I read up on splitting ovpn to chrome os compadible p12 filed, and they all have the same format : <ca><cert>and then <key>, but I have I file with
auth SHA512
verb 3
setenv CLIENT_CERT 0
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
persist-key
persist-tun
reneg-sec 0
remote-cert-tls server
auth-user-pass
pull
fast-io
script-security 2
up /etc/openvpn/update-resolv-conf
down /etc/openvpn/update-resolv-conf
and a <ca>, but then a <tls-auth>, How do I convert this into the the ca and client.p12 files for chrome os