3a29249e04
Learned and not docker default route for multi-asic platforms. Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>
84 lines
3.2 KiB
Bash
Executable File
84 lines
3.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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mkdir -p /etc/frr
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CONFIG_TYPE=`sonic-cfggen -d -v 'DEVICE_METADATA["localhost"]["docker_routing_config_mode"]'`
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update_default_gw()
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{
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IP_VER=${1}
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# FRR is not running in host namespace so we need to delete
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# default gw kernel route added by docker network via eth0 and add it back
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# with higher administrative distance so that default route learnt
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# by FRR becomes best route if/when available
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GATEWAY_IP=$(ip -${IP_VER} route show default dev eth0 | awk '{print $3}')
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#Check if docker default route is there
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if [[ ! -z "$GATEWAY_IP" ]]; then
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ip -${IP_VER} route del default dev eth0
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#Make sure route is deleted
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CHECK_GATEWAY_IP=$(ip -${IP_VER} route show default dev eth0 | awk '{print $3}')
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if [[ -z "$CHECK_GATEWAY_IP" ]]; then
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# Ref: http://docs.frrouting.org/en/latest/zebra.html#zebra-vrf
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# Zebra does treat Kernel routes as special case for the purposes of Admin Distance. \
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# Upon learning about a route that is not originated by FRR we read the metric value as a uint32_t.
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# The top byte of the value is interpreted as the Administrative Distance and
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# the low three bytes are read in as the metric.
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# so here we are programming administrative distance of 210 (210 << 24) > 200 (for routes learnt via IBGP)
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ip -${IP_VER} route add default via $GATEWAY_IP dev eth0 metric 3523215360
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fi
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fi
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}
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if [[ ! -z "$NAMESPACE_ID" ]]; then
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update_default_gw 4
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update_default_gw 6
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fi
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if [ -z "$CONFIG_TYPE" ] || [ "$CONFIG_TYPE" == "separated" ]; then
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sonic-cfggen -d -t /usr/share/sonic/templates/bgpd/bgpd.conf.j2 -y /etc/sonic/constants.yml > /etc/frr/bgpd.conf
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sonic-cfggen -d -t /usr/share/sonic/templates/zebra/zebra.conf.j2 > /etc/frr/zebra.conf
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sonic-cfggen -d -t /usr/share/sonic/templates/staticd/staticd.conf.j2 > /etc/frr/staticd.conf
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echo "no service integrated-vtysh-config" > /etc/frr/vtysh.conf
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rm -f /etc/frr/frr.conf
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elif [ "$CONFIG_TYPE" == "unified" ]; then
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sonic-cfggen -d -y /etc/sonic/constants.yml -t /usr/share/sonic/templates/frr.conf.j2 >/etc/frr/frr.conf
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echo "service integrated-vtysh-config" > /etc/frr/vtysh.conf
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rm -f /etc/frr/bgpd.conf /etc/frr/zebra.conf /etc/frr/staticd.conf
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fi
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chown -R frr:frr /etc/frr/
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sonic-cfggen -d -t /usr/share/sonic/templates/isolate.j2 > /usr/sbin/bgp-isolate
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chown root:root /usr/sbin/bgp-isolate
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chmod 0755 /usr/sbin/bgp-isolate
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sonic-cfggen -d -t /usr/share/sonic/templates/unisolate.j2 > /usr/sbin/bgp-unisolate
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chown root:root /usr/sbin/bgp-unisolate
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chmod 0755 /usr/sbin/bgp-unisolate
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mkdir -p /var/sonic
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echo "# Config files managed by sonic-config-engine" > /var/sonic/config_status
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rm -f /var/run/rsyslogd.pid
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supervisorctl start rsyslogd
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# start eoiu pulling, only if configured so
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if [[ $(sonic-cfggen -d -v 'WARM_RESTART.bgp.bgp_eoiu if WARM_RESTART and WARM_RESTART.bgp and WARM_RESTART.bgp.bgp_eoiu') == 'true' ]]; then
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supervisorctl start bgp_eoiu_marker
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fi
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# Start Quagga processes
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supervisorctl start zebra
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supervisorctl start staticd
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supervisorctl start bgpd
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if [ "$CONFIG_TYPE" == "unified" ]; then
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supervisorctl start vtysh_b
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fi
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supervisorctl start fpmsyncd
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supervisorctl start bgpcfgd
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supervisorctl start bgpmon
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