sonic-buildimage/files/image_config/interfaces/interfaces.j2
rajendra-dendukuri 8581a52571 ZTP infrastructure changes to support DHCP discovery provisioning data (#3298)
* ZTP infrastructure changes to support DHCP discovery provisioning data

- Dynamically generate DHCP client configuration based on current ZTP state
- Added support to request and process hostname when using DHCPv6
- Do not process graphservice url dhcp option if ZTP is enabled, ZTP service
will process it
- Generate /e/n/i file with all active interfaces seeking address assignment
via DHCP. Only interfaces that are created in Linux will be added to /e/n/i.
Also DHCP is started only on linked up in-band interfaces.

Signed-off-by: Rajendra Dendukuri <rajendra.dendukuri@broadcom.com>
2020-03-03 22:23:59 -08:00

114 lines
4.2 KiB
Django/Jinja

#
{% block banner %}
# =============== Managed by SONiC Config Engine DO NOT EDIT! ===============
# generated from /usr/share/sonic/templates/interfaces.j2 using sonic-cfggen
# file: /etc/network/interfaces
#
{% endblock banner %}
{% block mgmt_vrf %}
{% if (MGMT_VRF_CONFIG) and (MGMT_VRF_CONFIG['vrf_global']['mgmtVrfEnabled'] == "true") %}
auto mgmt
iface mgmt
vrf-table 5000
# The loopback network interface for mgmt VRF that is required for applications like NTP
up ip link add lo-m type dummy
up ip link set dev lo-m master mgmt
up ip addr add 127.0.0.1/8 dev lo-m
up ip link set lo-m up
down ip link delete dev lo-m
{% endif %}
{% endblock mgmt_vrf %}
{% block loopback %}
# The loopback network interface
auto lo
iface lo inet loopback
{% endblock loopback %}
{% block mgmt_interface %}
# The management network interface
auto eth0
{% if (ZTP_DHCP_DISABLED is not defined) and (ZTP is defined) and (ZTP['mode'] is defined and ZTP['mode']['profile'] == 'active') %}
# ZTP out-of-band interface
allow-hotplug eth0
{% if ZTP['mode']['ipv4'] == 'true' %}
iface eth0 inet dhcp
{% endif %}
{% if ZTP['mode']['ipv6'] == 'true' %}
iface eth0 inet6 dhcp
up sysctl net.ipv6.conf.eth0.accept_ra=1
down sysctl net.ipv6.conf.eth0.accept_ra=0
{% endif %}
{% if ZTP['mode']['inband'] == 'true' %}
{% for port in PORT %}
# ZTP in-band interface {{ port }}
auto {{ port }}
allow-hotplug {{ port }}
{% if PORT_DATA['PORT_TABLE:'+port] is defined and PORT_DATA['PORT_TABLE:'+port]['value']['oper_status'] == 'up' %}
{% if ZTP['mode']['ipv4'] == 'true' %}
iface {{ port }} inet dhcp
{% endif %}
{% if ZTP['mode']['ipv6'] == 'true' %}
iface {{ port }} inet6 dhcp
{% endif %}
{% endif %}
{% endfor %}
{% endif %}
{% else %}
{% if MGMT_INTERFACE %}
{% for (name, prefix) in MGMT_INTERFACE|pfx_filter %}
iface eth0 {{ 'inet' if prefix | ipv4 else 'inet6' }} static
address {{ prefix | ip }}
netmask {{ prefix | netmask if prefix | ipv4 else prefix | prefixlen }}
{% set vrf_table = 'default' %}
{% if (MGMT_VRF_CONFIG) and (MGMT_VRF_CONFIG['vrf_global']['mgmtVrfEnabled'] == "true") %}
{% set vrf_table = '5000' %}
vrf mgmt
{% endif %}
########## management network policy routing rules
# management port up rules
up ip {{ '-4' if prefix | ipv4 else '-6' }} route add default via {{ MGMT_INTERFACE[(name, prefix)]['gwaddr'] }} dev eth0 table {{ vrf_table }} metric 201
up ip {{ '-4' if prefix | ipv4 else '-6' }} route add {{ prefix | network }}/{{ prefix | prefixlen }} dev eth0 table {{ vrf_table }}
up ip {{ '-4' if prefix | ipv4 else '-6' }} rule add from {{ prefix | ip }}/{{ '32' if prefix | ipv4 else '128' }} table {{ vrf_table }}
{% if (MGMT_VRF_CONFIG) and (MGMT_VRF_CONFIG['vrf_global']['mgmtVrfEnabled'] == "true") %}
up cgcreate -g l3mdev:mgmt
up cgset -r l3mdev.master-device=mgmt mgmt
{% endif %}
{% for route in MGMT_INTERFACE[(name, prefix)]['forced_mgmt_routes'] %}
up ip rule add to {{ route }} table {{ vrf_table }}
{% endfor %}
# management port down rules
pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} route delete default via {{ MGMT_INTERFACE[(name, prefix)]['gwaddr'] }} dev eth0 table {{ vrf_table }}
pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} route delete {{ prefix | network }}/{{ prefix | prefixlen }} dev eth0 table {{ vrf_table }}
pre-down ip {{ '-4' if prefix | ipv4 else '-6' }} rule delete from {{ prefix | ip }}/{{ '32' if prefix | ipv4 else '128' }} table {{ vrf_table }}
{% if (MGMT_VRF_CONFIG) and (MGMT_VRF_CONFIG['vrf_global']['mgmtVrfEnabled'] == "true") %}
down cgdelete -g l3mdev:mgmt
{% endif %}
{% for route in MGMT_INTERFACE[(name, prefix)]['forced_mgmt_routes'] %}
pre-down ip rule delete to {{ route }} table {{ vrf_table }}
{% endfor %}
{# TODO: COPP policy type rules #}
{% endfor %}
{% else %}
iface eth0 inet dhcp
metric 202
{% if (MGMT_VRF_CONFIG) and (MGMT_VRF_CONFIG['vrf_global']['mgmtVrfEnabled'] == "true") %}
vrf mgmt
up cgcreate -g l3mdev:mgmt
up cgset -r l3mdev.master-device=mgmt mgmt
down cgdelete -g l3mdev:mgmt
{% endif %}
iface eth0 inet6 dhcp
up sysctl net.ipv6.conf.eth0.accept_ra=1
down sysctl net.ipv6.conf.eth0.accept_ra=0
{% endif %}
{% endif %}
#
source /etc/network/interfaces.d/*
#
{% endblock mgmt_interface %}