+ service_name: kernel
+ config_settings:
+ kernel_modules:
+ nf_conntrack: {}
+ sysctl_settings:
+ net.ipv4.tcp_keepalive_intvl:
+ value: 1
+ net.ipv4.tcp_keepalive_probes:
+ value: 5
+ net.ipv4.tcp_keepalive_time:
+ value: 5
+ net.nf_conntrack_max:
+ value: 500000
+ net.netfilter.nf_conntrack_max:
+ value: 500000
+ # prevent neutron bridges from autoconfiguring ipv6 addresses
+ net.ipv6.conf.default.accept_ra:
+ value: 0
+ net.ipv6.conf.default.autoconf:
+ value: 0
+ net.core.netdev_max_backlog:
+ value: 10000