Damien/arista-evpn-vxlan-clab
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Update topology to use binds for host interface configuration

Browse Source 
Replace exec commands with binds mounting /etc/network/interfaces files.
This provides cleaner, more maintainable configuration that properly
handles LACP bonding and VLAN tagging on Alpine Linux hosts.

All hosts now:
- Mount their interface config from hosts/ directory
- Install required packages (ifupdown, bonding, vlan)
- Load kernel modules (bonding, 8021q)
- Bring up interfaces with ifup -a
This commit is contained in:
Damien Arnodo
2025-11-29 17:24:54 +00:00
parent 3eedb0786c
commit 383a631d92
1 changed files with 29 additions and 59 deletions
Download Patch File Download Diff File Expand all files Collapse all files

88
evpn-lab.clab.yml
View File

@@ -67,88 +67,58 @@ topology:
startup-config: configs/leaf8.cfg startup-config: configs/leaf8.cfg
# Host devices - DUAL-HOMED with LACP bonding to MLAG pairs # Host devices - DUAL-HOMED with LACP bonding to MLAG pairs
# Using binds to mount interface configuration files
host1: host1:
kind: linux kind: linux
mgmt-ipv4: 172.16.0.101 mgmt-ipv4: 172.16.0.101
image: alpine:latest image: alpine:latest
binds:
- hosts/host1_interfaces:/etc/network/interfaces
exec: exec:
# Dual-homed LACP bond to leaf1 + leaf2 for L2 VXLAN test (VLAN 40) # Install required packages for bonding and VLAN support
# Using mode 4 (802.3ad) explicitly for Alpine Linux compatibility - apk add --no-cache ifupdown bonding vlan
- ip link add bond0 type bond mode 4 # Load bonding kernel module
- ip link set address 00:c1:ab:00:00:11 dev bond0 - modprobe bonding
- ip link set eth1 down # Load 8021q module for VLAN support
- ip link set eth2 down - modprobe 8021q
- ip link set eth1 master bond0 # Bring up interfaces using the mounted configuration
- ip link set eth2 master bond0 - ifup -a
- ip link set eth1 up
- ip link set eth2 up
- ip link set bond0 up
# VLAN interface on bond
- ip link add link bond0 name bond0.40 type vlan id 40
- ip link set bond0.40 up
- ip addr add 10.40.40.101/24 dev bond0.40
host2: host2:
kind: linux kind: linux
mgmt-ipv4: 172.16.0.102 mgmt-ipv4: 172.16.0.102
image: alpine:latest image: alpine:latest
binds:
- hosts/host2_interfaces:/etc/network/interfaces
exec: exec:
# Dual-homed LACP bond to leaf3 + leaf4 for L3 VXLAN test (VLAN 34, VRF gold) - apk add --no-cache ifupdown bonding vlan
- ip link add bond0 type bond mode 4 - modprobe bonding
- ip link set address 00:c1:ab:00:00:22 dev bond0 - modprobe 8021q
- ip link set eth1 down - ifup -a
- ip link set eth2 down
- ip link set eth1 master bond0
- ip link set eth2 master bond0
- ip link set eth1 up
- ip link set eth2 up
- ip link set bond0 up
# VLAN interface on bond
- ip link add link bond0 name bond0.34 type vlan id 34
- ip link set bond0.34 up
- ip addr add 10.34.34.102/24 dev bond0.34
- ip route add default via 10.34.34.1
host3: host3:
kind: linux kind: linux
mgmt-ipv4: 172.16.0.103 mgmt-ipv4: 172.16.0.103
image: alpine:latest image: alpine:latest
binds:
- hosts/host3_interfaces:/etc/network/interfaces
exec: exec:
# Dual-homed LACP bond to leaf5 + leaf6 for L2 VXLAN test (VLAN 40) - apk add --no-cache ifupdown bonding vlan
- ip link add bond0 type bond mode 4 - modprobe bonding
- ip link set address 00:c1:ab:00:00:33 dev bond0 - modprobe 8021q
- ip link set eth1 down - ifup -a
- ip link set eth2 down
- ip link set eth1 master bond0
- ip link set eth2 master bond0
- ip link set eth1 up
- ip link set eth2 up
- ip link set bond0 up
# VLAN interface on bond
- ip link add link bond0 name bond0.40 type vlan id 40
- ip link set bond0.40 up
- ip addr add 10.40.40.103/24 dev bond0.40
host4: host4:
kind: linux kind: linux
mgmt-ipv4: 172.16.0.104 mgmt-ipv4: 172.16.0.104
image: alpine:latest image: alpine:latest
binds:
- hosts/host4_interfaces:/etc/network/interfaces
exec: exec:
# Dual-homed LACP bond to leaf7 + leaf8 for L3 VXLAN test (VLAN 78, VRF gold) - apk add --no-cache ifupdown bonding vlan
- ip link add bond0 type bond mode 4 - modprobe bonding
- ip link set address 00:c1:ab:00:00:44 dev bond0 - modprobe 8021q
- ip link set eth1 down - ifup -a
- ip link set eth2 down
- ip link set eth1 master bond0
- ip link set eth2 master bond0
- ip link set eth1 up
- ip link set eth2 up
- ip link set bond0 up
# VLAN interface on bond
- ip link add link bond0 name bond0.78 type vlan id 78
- ip link set bond0.78 up
- ip addr add 10.78.78.104/24 dev bond0.78
- ip route add default via 10.78.78.1
links: links:
# Spine1 to Leaf connections (underlay fabric) # Spine1 to Leaf connections (underlay fabric)