sonic-buildimage/dockers/docker-fpm-frr/start.sh
gechiang 7168fc8c07
Add bgpmon under sonic-bgpcfgd to be started as a new daemon under BGP docker (#5426)
This is to port the same set of changes from master branch to 201911 branch for the bgpmon daemon running under bgp docker.
2020-09-22 12:13:37 -07:00

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#!/usr/bin/env bash
mkdir -p /etc/frr
CONFIG_TYPE=`sonic-cfggen -d -v 'DEVICE_METADATA["localhost"]["docker_routing_config_mode"]'`
if [[ ! -z "$NAMESPACE_ID" ]]; then
# FRR is not running in host namespace so we need to delete
# default gw kernel route added by docker network via eth0 and add it back
# with higher administrative distance so that default route learnt
# by FRR becomes best route if/when available
GATEWAY_IP=$(ip route show 0.0.0.0/0 dev eth0 | awk '{print $3}')
#Check if docker default route is there
if [[ ! -z "$GATEWAY_IP" ]]; then
ip route del 0.0.0.0/0 dev eth0
#Make sure route is deleted
CHECK_GATEWAY_IP=$(ip route show 0.0.0.0/0 dev eth0 | awk '{print $3}')
if [[ -z "$CHECK_GATEWAY_IP" ]]; then
# Ref: http://docs.frrouting.org/en/latest/zebra.html#zebra-vrf
# Zebra does treat Kernel routes as special case for the purposes of Admin Distance. \
# Upon learning about a route that is not originated by FRR we read the metric value as a uint32_t.
# The top byte of the value is interpreted as the Administrative Distance and
# the low three bytes are read in as the metric.
# so here we are programming administrative distance of 210 (210 << 24) > 200 (for routes learnt via IBGP)
ip route add 0.0.0.0/0 via $GATEWAY_IP dev eth0 metric 3523215360
fi
fi
fi
if [ -z "$CONFIG_TYPE" ] || [ "$CONFIG_TYPE" == "separated" ]; then
sonic-cfggen -d -t /usr/share/sonic/templates/bgpd/bgpd.conf.j2 -y /etc/sonic/constants.yml > /etc/frr/bgpd.conf
sonic-cfggen -d -t /usr/share/sonic/templates/zebra/zebra.conf.j2 > /etc/frr/zebra.conf
sonic-cfggen -d -t /usr/share/sonic/templates/staticd/staticd.conf.j2 > /etc/frr/staticd.conf
echo "no service integrated-vtysh-config" > /etc/frr/vtysh.conf
rm -f /etc/frr/frr.conf
elif [ "$CONFIG_TYPE" == "unified" ]; then
sonic-cfggen -d -y /etc/sonic/constants.yml -t /usr/share/sonic/templates/frr.conf.j2 >/etc/frr/frr.conf
echo "service integrated-vtysh-config" > /etc/frr/vtysh.conf
rm -f /etc/frr/bgpd.conf /etc/frr/zebra.conf /etc/frr/staticd.conf
fi
chown -R frr:frr /etc/frr/
sonic-cfggen -d -t /usr/share/sonic/templates/isolate.j2 > /usr/sbin/bgp-isolate
chown root:root /usr/sbin/bgp-isolate
chmod 0755 /usr/sbin/bgp-isolate
sonic-cfggen -d -t /usr/share/sonic/templates/unisolate.j2 > /usr/sbin/bgp-unisolate
chown root:root /usr/sbin/bgp-unisolate
chmod 0755 /usr/sbin/bgp-unisolate
mkdir -p /var/sonic
echo "# Config files managed by sonic-config-engine" > /var/sonic/config_status
rm -f /var/run/rsyslogd.pid
supervisorctl start rsyslogd
# start eoiu pulling, only if configured so
if [[ $(sonic-cfggen -d -v 'WARM_RESTART.bgp.bgp_eoiu if WARM_RESTART and WARM_RESTART.bgp and WARM_RESTART.bgp.bgp_eoiu') == 'true' ]]; then
supervisorctl start bgp_eoiu_marker
fi
# Start Quagga processes
supervisorctl start zebra
supervisorctl start staticd
supervisorctl start bgpd
if [ "$CONFIG_TYPE" == "unified" ]; then
supervisorctl start vtysh_b
fi
supervisorctl start fpmsyncd
supervisorctl start bgpcfgd
supervisorctl start bgpmon