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https://github.com/linux-system-roles/network.git
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6e85ffe5f2
* add a helper to create two veth devices with IPv4/IPv6 infra * add a bond in active-backup mode with miimon value * add two slaves connections for two veth devices * check automated IPv4/IPv6 addresses are assigned to master * check all connections are present * add a helper to delete previously created veth device setup
73 lines
2.7 KiB
YAML
73 lines
2.7 KiB
YAML
# SPDX-License-Identifier: BSD-3-Clause
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---
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- name: Install dnsmasq
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package:
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name: dnsmasq
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state: present
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- name: Create test interfaces
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shell: |
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# NM to see veth devices starting with test* as managed after ip add..
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echo 'ENV{ID_NET_DRIVER}=="veth",\
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ENV{INTERFACE}=="test*", \
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ENV{NM_UNMANAGED}="0"' >/etc/udev/rules.d/88-veth.rules
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udevadm control --reload-rules
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udevadm settle --timeout=5
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# Setuptwo devices with IPv4/IPv6 auto support
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ip link add {{dhcp_interface1}} type veth peer name {{dhcp_interface1}}p
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ip link set {{dhcp_interface1}}p up
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ip link add {{dhcp_interface2}} type veth peer name {{dhcp_interface2}}p
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ip link set {{dhcp_interface2}}p up
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# Create the 'testbr' - providing both 10.x ipv4 and 2620:52:0 ipv6 dhcp
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ip link add name testbr type bridge forward_delay 0
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ip link set testbr up
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ip addr add 192.0.2.1/24 dev testbr
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ip -6 addr add 2001:DB8::1/32 dev testbr
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if grep 'release 6' /etc/redhat-release; then
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# We need bridge-utils and radvd only in rhel6
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if ! rpm -q --quiet radvd; then yum -y install radvd; fi
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if ! rpm -q --quiet bridge-utils; then yum -y install bridge-utils; fi
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# We need to add iptables rule to allow dhcp request
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iptables -I INPUT -i testbr -p udp --dport 67:68 --sport 67:68 -j ACCEPT
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# Add {{dhcp_interface1}}, {{dhcp_interface2}} peers into the testbr
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brctl addif testbr {{dhcp_interface1}}p
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brctl addif testbr {{dhcp_interface2}}p
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# in RHEL6 /run is not present
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mkdir -p /run
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# and dnsmasq does not support ipv6
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dnsmasq \
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--pid-file=/run/dhcp_testbr.pid \
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--dhcp-leasefile=/run/dhcp_testbr.lease \
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--dhcp-range=192.0.2.1,192.0.2.254,240 \
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--interface=testbr --bind-interfaces
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# start radvd for ipv6
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echo 'interface testbr {' > /etc/radvd.conf
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echo ' AdvSendAdvert on;' >> /etc/radvd.conf
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echo ' prefix 2001:DB8::/64 { ' >> /etc/radvd.conf
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echo ' AdvOnLink on; }; ' >> /etc/radvd.conf
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echo ' }; ' >> /etc/radvd.conf
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# enable ipv6 forwarding
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sysctl -w net.ipv6.conf.all.forwarding=1
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service radvd restart
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else
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ip link set {{dhcp_interface1}}p master testbr
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ip link set {{dhcp_interface2}}p master testbr
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# Run joint DHCP4/DHCP6 server with RA enabled in veth namespace
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dnsmasq \
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--pid-file=/run/dhcp_testbr.pid \
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--dhcp-leasefile=/run/dhcp_testbr.lease \
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--dhcp-range=192.0.2.1,192.0.2.254,240 \
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--dhcp-range=2001:DB8::10,2001:DB8::1FF,slaac,64,240 \
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--enable-ra --interface=testbr --bind-interfaces
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fi
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