PR https://github.com/vyos/vyos-1x/pull/715

Looks good on 1.4-rolling-202102010218 and 1.3-beta-202102010443:

Looks good on 1.4-rolling-202102010218 and 1.3-beta-202102010443:

Looks good on 1.3-beta-202102010443:

vyos@vyos:~$ configure
[edit]
vyos@vyos# set interfaces ethernet eth0 dhcpv6-options
[edit]
vyos@vyos# commit
[edit]
vyos@vyos# exit
Warning: configuration changes have not been saved.
exit
vyos@vyos:~$ ps ax | grep dhcp6c
 1877 ttyS0    R+     0:00 grep dhcp6c
vyos@vyos:~$ show version

Looks good on 1.3-beta-202102010443:

vyos@vyos:~$ configure
[edit]
vyos@vyos# set interfaces dummy dum0
[edit]
vyos@vyos# set interfaces ethernet eth0 dhcpv6-options pd 0 interface dum0
[edit]
vyos@vyos# set interfaces ethernet eth0 dhcpv6-options duid 00:02:00:00:0d:e9:30:30:31:45:34:36:2d:58:58:58:58:58:58:58:58:58:58:58:58:58:58
[edit]
vyos@vyos# commit
[edit]
vyos@vyos# exit
Warning: configuration changes have not been saved.
exit
vyos@vyos:~$ show version

There's an easy workaround to hack this into your "configure" scripts:

On the other hand, it will not be possible to use login with "_"
https://github.com/vyos/vyos-1x/blob/current/data/templates/accel-ppp/chap-secrets.config_dict.tmpl#L6-L8

@dirtycache a lot of dependences which not present in 1.2, for example, dict_merge/node_changed/leaf_node_changed/render/call/airbag.

PR https://github.com/vyos/vyos-1x/pull/713

@Viacheslav , working on it and update you soon.

@dmbaturin Hi, I would like to discuss with you the possibility of introducing load-balancing components based on direct-routing mode in VYOS. VYOS already has binary components that implement LVS

Once confirmed in 1.4 this is a good backport candidate to 1.3. Thanks!

Backported to VyOS 1.3 equuleus

I think we definitely need to try because this reproducible. @Viacheslav did you reproduce this on the ESXi hypervisor?

Only some files in /etc are adjusted by the Python scripts. We can extend the render() function to only write the file if the content changed (by either read back the content or comparind checksums of the content).

Some weirdness: vyos-rsyslog.conf looks fine even though it's also unconditionally written in generate() in src/conf_mode/system-syslog.py in vyos-1x:

grub> ls -l (hd0,msdos1)/boot/1.4-rolling-202101290218/rw/etc/rsyslog.d/       
181          20210129162817 vyos-rsyslog.conf

In the crux branch of vyatta-cfg-system, scripts/system/vyatta_update_console.pl doesn't overwrite those files unless they've changed (see update()).

I think this is just filesystem corruption caused by yanking the power to the VM. serial-getty@ttyS0.service is also showing 0 file size (both are written in generate() in src/conf_mode/system_console.py in vyos-1x):

grub> ls -l (hd0,msdos1)/boot/1.4-rolling-202101290218/rw/etc/systemd/system/
0            20210129162816 serial-getty@ttyS0.service
DIR          20210129162816 getty.target.wants/
DIR          20210129100224 ntp.service.d/
DIR          20210129100302 ssh.service.d/

Is this probably also an issue for IS-IS?

Looks like grub.cfg is being overwritten (note the 0 file size):

grub> ls -l (hd0,msdos1)/boot/grub/
DIR          20210129100148 i386-pc/
DIR          20210129100144 locale/
DIR          20210129100147 fonts/
0            20210129155859 grub.cfg
1024         20210129100147 grubenv