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ifupdown-ng / ifupdown-ng

flexible ifup/ifdown implementation

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pre-up for custom config is executed after VRF executor

EasyNetDev opened this issue · comments

commented

Hi,

There is a reason why ifupdonw-ng is executing VRF executor before the predefined pre-up scripts in config?

Example:

auto nat64
iface nat64
    description NAT64
    pre-up /sbin/ip tuntap add mode tun user root group root nat64
    post-down /sbin/ip link delete nat64
    vrf internet

Output:

...
ifupdown: nat64: attempting to run pre executor for phase create
ifupdown: nat64: attempting to run post executor for phase create
ifupdown: nat64: attempting to run vrf executor for phase create
/usr/libexec/ifupdown-ng/vrf
+ [ -n  ]
+ exit 0
ifupdown: nat64: attempting to run link executor for phase pre-up
/usr/libexec/ifupdown-ng/link
ifupdown: nat64: attempting to run pre executor for phase pre-up
ifupdown: nat64: attempting to run post executor for phase pre-up
ifupdown: nat64: attempting to run vrf executor for phase pre-up
/usr/libexec/ifupdown-ng/vrf
+ [ -n internet ]
+ handle_member
+ /sbin/ip link set nat64 master internet
Cannot find device "nat64"
+ exit 0
/sbin/ip tuntap add mode tun user root group root nat64
/bin/run-parts /etc/network/if-pre-up.d
ifupdown: nat64: attempting to run link executor for phase up
/usr/libexec/ifupdown-ng/link
+ IF_LINK_OPTIONS=
+ [ -n  ]
+ [ -n  ]
+ ip link set up dev nat64
+ [  ]
ifupdown: nat64: attempting to run pre executor for phase up
ifupdown: nat64: attempting to run post executor for phase up
ifupdown: nat64: attempting to run vrf executor for phase up
/usr/libexec/ifupdown-ng/vrf
+ exit 0
/bin/run-parts /etc/network/if-up.d
ifupdown: nat64: attempting to run link executor for phase post-up
/usr/libexec/ifupdown-ng/link
ifupdown: nat64: attempting to run pre executor for phase post-up
ifupdown: nat64: attempting to run post executor for phase post-up
ifupdown: nat64: attempting to run vrf executor for phase post-up
/usr/libexec/ifupdown-ng/vrf
+ exit 0
commented

Executors run by default before any of the local steps are run.

Actually, imo the solution here is to turn running pre-up/up/down/post-down scripts into their own executor.