This lab is based on github.com/goffinet/virt-scripts Lab103 : OSPF quad pod.
docker run --rm --privileged --cap-add=ALL \
-v /lib/modules:/lib/modules -v /var/lib/libvirt:/var/lib/libvirt \
-v /var/log:/var/log -v /run:/run -v `pwd`:/opt/ -w /opt/ \
-it goffinet/terraform /bin/terraform init
docker run --rm --privileged --cap-add=ALL \
-v /lib/modules:/lib/modules -v /var/lib/libvirt:/var/lib/libvirt \
-v /var/log:/var/log -v /run:/run -v `pwd`:/opt/ -w /opt/ \
-it goffinet/terraform /bin/terraform apply -auto-approve~/virt-scripts# virsh list --name
pc1-103
pc2-103
pc3-103
pc4-103
r1-103
r2-103
r3-103
r4-103~/virt-scripts# virsh net-list
Name State Autostart Persistent
----------------------------------------------------------
default active yes yes
lan1-103 active yes yes
lan2-103 active yes yes
lan3-103 active yes yes
lan4-103 active yes yes
wan-103 active yes yes
In the Linux shell :
[root@r1-103 ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 52:54:00:c3:b1:cd brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 02:8c:da:b4:5d:fa brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 02:0a:a9:ea:9b:83 brd ff:ff:ff:ff:ff:ff
[root@r1-103 ~]# nmcli d
DEVICE TYPE STATE CONNECTION
eth0 ethernet connected System eth0
eth1 ethernet connected Wired connection 1
eth2 ethernet disconnected --
lo loopback unmanaged --The eth2 is used to provide network in the firstboot post-installation that install Quagga ansd Dnsmasq. This 'disconnected' by NetworkManager.
In the Quagga shell :
[root@r1-103 ~]# vtysh
Hello, this is Quagga (version 0.99.22.4).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
r1-103# show interface
Interface eth0 is up, line protocol detection is disabled
index 2 metric 1 mtu 1500
flags: <UP,BROADCAST,RUNNING,MULTICAST>
HWaddr: 52:54:00:c3:b1:cd
inet 10.103.1.1/24 broadcast 10.103.1.255
inet6 fd00:103:1::1/64
inet6 fe80::5054:ff:fec3:b1cd/64
Interface eth1 is up, line protocol detection is disabled
index 3 metric 1 mtu 1500
flags: <UP,BROADCAST,RUNNING,MULTICAST>
HWaddr: 02:8c:da:b4:5d:fa
inet 10.103.0.1/24 broadcast 10.103.0.255
inet6 fd00:103::1/64
inet6 fe80::9e43:5599:6015:6630/64
Interface eth2 is up, line protocol detection is disabled
index 4 metric 1 mtu 1500
flags: <UP,BROADCAST,RUNNING,MULTICAST>
HWaddr: 02:0a:a9:ea:9b:83
Interface lo is up, line protocol detection is disabled
index 1 metric 1 mtu 65536
flags: <UP,LOOPBACK,RUNNING>
inet 127.0.0.1/8
inet6 ::1/128
[root@r2-103 ~]# vtysh
Hello, this is Quagga (version 0.99.22.4).
Copyright 1996-2005 Kunihiro Ishiguro, et al.
r2-103# sh ip route
Codes: K - kernel route, C - connected, S - static, R - RIP,
O - OSPF, I - IS-IS, B - BGP, A - Babel,
> - selected route, * - FIB route
K * 0.0.0.0/0 via 192.168.122.1, eth2 inactive
O 10.103.0.0/24 [110/10] is directly connected, eth1, 00:00:56
C>* 10.103.0.0/24 is directly connected, eth1
O>* 10.103.1.0/24 [110/20] via 10.103.0.1, eth1, 00:00:56
O 10.103.2.0/24 [110/10] is directly connected, eth0, 00:02:16
C>* 10.103.2.0/24 is directly connected, eth0
O>* 10.103.3.0/24 [110/20] via 10.103.0.3, eth1, 00:00:56
O>* 10.103.4.0/24 [110/20] via 10.103.0.4, eth1, 00:00:56
C>* 127.0.0.0/8 is directly connected, lo
r2-103# exit
r1-103# sh ipv6 route
Codes: K - kernel route, C - connected, S - static, R - RIPng,
O - OSPFv6, I - IS-IS, B - BGP, A - Babel,
> - selected route, * - FIB route
C>* ::1/128 is directly connected, lo
O fd00:103::/64 [110/1] is directly connected, eth1, 00:00:22
C>* fd00:103::/64 is directly connected, eth1
O fd00:103:1::/64 [110/1] via ::1, lo, 00:00:22
C>* fd00:103:1::/64 is directly connected, eth0
O>* fd00:103:2::/64 [110/2] via fe80::ff7a:8c8a:3b74:b757, eth1, 00:00:17
O>* fd00:103:3::/64 [110/2] via fe80::c0a8:ecbe:9958:7188, eth1, 00:00:17
O>* fd00:103:4::/64 [110/2] via fe80::f70e:98d1:9f7:d380, eth1, 00:00:21
C * fe80::/64 is directly connected, eth1
C>* fe80::/64 is directly connected, eth0
for id in 1 2 3 4 ; do
if [ ! -e /root/.ssh/id_rsa.pub ] ; then
ssh-keygen -q ; fi
ssh-copy-id 10.103.0.${id}
done
for id in 1 2 3 4 ; do
echo "R${id} --> PC${id}"
ping -c1 $(ssh 10.103.0.${id} "cat /var/lib/dnsmasq/dnsmasq.leases | grep pc | cut -d ' ' -f 3")
donefor id in 1 2 3 4 ; do
echo "PC${id} --> LAN${id}"
ping -c1 10.103.${id}.1
doner1-103# show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
RXmtL RqstL DBsmL
2.2.2.2 1 2-Way/DROther 35.308s 10.103.0.2 eth1:10.103.0.1
0 0 0
3.3.3.3 1 Full/Backup 39.025s 10.103.0.3 eth1:10.103.0.1
0 0 0
4.4.4.4 1 Full/DR 35.199s 10.103.0.4 eth1:10.103.0.1
0 0 0
r1-103# show ipv6 ospf6 neighbor
Neighbor ID Pri DeadTime State/IfState Duration I/F[State]
2.2.2.2 1 00:00:32 Twoway/DROther 00:06:08 eth1[DROther]
3.3.3.3 1 00:00:35 Full/BDR 00:05:07 eth1[DROther]
4.4.4.4 1 00:00:32 Full/DR 00:05:08 eth1[DROther]
r1-103# show ip ospf interface eth1
eth1 is up
ifindex 3, MTU 1500 bytes, BW 0 Kbit <UP,BROADCAST,RUNNING,MULTICAST>
Internet Address 10.103.0.1/24, Broadcast 10.103.0.255, Area 0.0.0.0
MTU mismatch detection:enabled
Router ID 1.1.1.1, Network Type BROADCAST, Cost: 10
Transmit Delay is 1 sec, State DROther, Priority 1
Designated Router (ID) 4.4.4.4, Interface Address 10.103.0.4
Backup Designated Router (ID) 3.3.3.3, Interface Address 10.103.0.3
Multicast group memberships: OSPFAllRouters
Timer intervals configured, Hello 10s, Dead 40s, Wait 40s, Retransmit 5
Hello due in 8.359s
Neighbor Count is 3, Adjacent neighbor count is 2
r1-103# show ipv6 ospf6 interface eth1
eth1 is up, type BROADCAST
Interface ID: 3
Internet Address:
inet : 10.103.0.1/24
inet6: fd00:103::1/64
inet6: fe80::9e43:5599:6015:6630/64
Instance ID 0, Interface MTU 1500 (autodetect: 1500)
MTU mismatch detection: enabled
Area ID 0.0.0.0, Cost 1
State DROther, Transmit Delay 1 sec, Priority 1
Timer intervals configured:
Hello 10, Dead 40, Retransmit 5
DR: 4.4.4.4 BDR: 3.3.3.3
Number of I/F scoped LSAs is 4
0 Pending LSAs for LSUpdate in Time 00:00:00 [thread off]
0 Pending LSAs for LSAck in Time 00:00:00 [thread off]
r1-103# show ip ospf database
OSPF Router with ID (1.1.1.1)
Router Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum Link count
1.1.1.1 1.1.1.1 585 0x80000006 0x13b5 2
2.2.2.2 2.2.2.2 587 0x80000006 0xe9d4 2
3.3.3.3 3.3.3.3 586 0x80000008 0xbcf5 2
4.4.4.4 4.4.4.4 590 0x80000007 0x9514 2
Net Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum
10.103.0.4 4.4.4.4 590 0x80000003 0x287a
r1-103# show ipv6 ospf6 linkstate
SPF Result in Area 0.0.0.0
Type Router-ID Net-ID Rtr-Bits Options Cost
Router 1.1.1.1 0.0.0.0 -------- --|R|-|--|E|V6 0
Router 2.2.2.2 0.0.0.0 -------- --|R|-|--|E|V6 1
Router 3.3.3.3 0.0.0.0 -------- --|R|-|--|E|V6 1
Router 4.4.4.4 0.0.0.0 -------- --|R|-|--|E|V6 1
Network 4.4.4.4 0.0.0.3 -------- --|R|-|--|E|V6 1
r1-103# show ipv6 ospf6 linkstate
<cr>
detail
network Display Network Entry
router Display Router Entry
- https://registry.terraform.io/providers/hashicorp/template/latest/docs/data-sources/file
- template_file with count=N usage help #1893
- https://stackoverflow.com/questions/51882802/terraform-using-count-index-in-a-resource-name
- https://www.terraform.io/docs/configuration/resources.html#count-multiple-resource-instances-by-count
- https://cloudinit.readthedocs.io/en/latest/topics/format.html
- https://github.com/hashicorp/learn-terraform-count-foreach/blob/master/main.tf