Container control plane

cluster-provision/centos9/scripts/dnsmasq.sh

@@ -4,6 +4,7 @@ set -ex
 
 NUM_NODES=${NUM_NODES-1}
 NUM_SECONDARY_NICS=${NUM_SECONDARY_NICS:-0}
+SEQ_START=1
 
 ip link add br0 type bridge
 echo 0 > /proc/sys/net/ipv6/conf/br0/disable_ipv6
@@ -18,18 +19,32 @@ for snet in $(seq 1 ${NUM_SECONDARY_NICS}); do
   ip link set dev br${snet} up
 done
 
-for i in $(seq 1 ${NUM_NODES}); do
+# if the number is one then do the normal thing, if its higher than one then do the manual ip thingy
+i=1
+while [ $i -le ${NUM_NODES} ]; do
+  if [ ${NUM_NODES} -gt 1 ] && [ $i -eq 1 ]; then
+    ip tuntap add dev tap101 mode tap user $(whoami)
+    ip link set tap101 master br0
+    ip link set dev tap101 up
+    ip addr add 192.168.66.110/24 dev tap101
+    ip -6 addr add fd00::110 dev tap101
+    iptables -t nat -A PREROUTING -p tcp -i eth0 -m tcp --dport 6443 -j DNAT --to-destination 192.168.66.110:6443
+  fi
+
   n="$(printf "%02d" ${i})"
   ip tuntap add dev tap${n} mode tap user $(whoami)
   ip link set tap${n} master br0
   ip link set dev tap${n} up
   DHCP_HOSTS="${DHCP_HOSTS} --dhcp-host=52:55:00:d1:55:${n},192.168.66.1${n},[fd00::1${n}],node${n},infinite"
+
   for s in $(seq 1 ${NUM_SECONDARY_NICS}); do
     tap_name=stap$(($i - 1))-$(($s - 1))
     ip tuntap add dev $tap_name mode tap user $(whoami)
     ip link set $tap_name master br${s}
     ip link set dev $tap_name up
   done
+
+  ((i++))  # Increment for the main loop
 done
 
 # Make sure that all VMs can reach the internet
@@ -40,4 +55,4 @@ ip6tables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
 ip6tables -A FORWARD -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
 ip6tables -A FORWARD -i br0 -o eth0 -j ACCEPT
 
-exec dnsmasq --interface=br0 --enable-ra --dhcp-option=option6:dns-server,[::] -d ${DHCP_HOSTS} --dhcp-range=192.168.66.10,192.168.66.200,infinite --dhcp-range=::10,::200,constructor:br0,static
+exec dnsmasq --interface=br0 --enable-ra --dhcp-option=option6:dns-server,[::] -d ${DHCP_HOSTS} --dhcp-range=192.168.66.10,192.168.66.200,infinite --dhcp-range=::10,::200,constructor:br0,static