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monitoring: T3872: Add a new feature service monitoring
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(cherry picked from commit eb6247e4b464c36fa7441627b221d0db39429251)
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The systemd unit for atop service is changed, so the log file name and
location will be always the same. It also adds the logrotate
configuration to conditionally rotate a log file.
Hardcoded values:
- maximum log file size: 10 MB
- maximum count of files: 10
These values can be easily changed within the
`/etc/logrotate.d/vyos-atop`, no additional configuration is required.
Rotation will be done hourly, if necessary, according to
`/etc/cron.hourly/vyos-logrotate-hourly`.
This change has two benefits:
- rotation strategy control can be done via logrotate, and can be
exposed to CLI now;
- the total size of all logs is now controlled more aggressively, so
the chance to get a situation when atop logs took all the space on a
drive is significantly lower. Also, if this will be necessary, rotation
may be done even each minute what reduces risks related to logs size
even more.
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Now that MSS clamping is done on the "per-interface" level the entire PPPoE
stuff would have needed to get a full copy in GNU BASH for this or, participate
in the common library.
Add a new PPP ip-up script named 99-vyos-pppoe-callback which will call the
vyos.ifconfig.PPPoEIf.update() function to configure everything as done with
all other interfaces. This removes duplicated code for VRF assignment and route
installation when a PPPoE interface is brought up or down.
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vyos-smoketest-integration (T2832)
* 'master' of github.com:vyos/vyos-smoketest: (153 commits)
pppoe-server: test some more values
lcd: adjust to cli changes
lcd: adapt test to new CLI design
pppoe-server: initial smoketest with local and radius auth
pppoe: validate dhcpv6 client will be started
wireless: validate hostapd/wpa_supplicant is running
pppoe: sync to new dhcpv6-pd cli
anyconnect: T2812: add basic testing
ethernet: check interface disable state
router-advert: check 'infinity' option in script logic
ssh: config file is now volatile (moved to /run)
ipv6: link-local: test address assignment on interfaces
router-advert: add initial test
mdns-repeater: add basic test
pseudo-ethernet: extend smoketests with VIFs
l2tpv3: add initial interface test
wireless: use library function for loading kernel modules
ethernet: test "ip" subtree of interface for e.g. ARP settings
pppoe: use assertEqual()
service: bcast-relay: add initial tests
...
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ppp already supports ip-pre-up script but none was being supplied. Need
ip-pre-up to handle renames and firewall properly.
Script imported from old VyOS PPP fork repository at
https://github.com/vyos/ppp-debian
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vyos@vyos# show interfaces pppoe
pppoe pppoe0 {
default-route force
link eth2.7
mtu 400
name-server auto
password 12345678
user-id vyos@vyos.io
}
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This changeset contains multiple changes in structure, logic, and bugfixes for dhclient-script. It should provide better compatibility with new Debian versions and flexibility in controlling and changing VyOS-related functions.
1. Structure change:
* All VyOS-related functionality was moved from dhclient-script itself to separated hook files.
* Old vyatta-dhclient-hook was moved from vyatta-cfg to vyos-1x.
* This change allows discard dhclient-script replacing and use the original one from Debian without any changes. So, we do not need to track all changes in upstream so carefully.
* To provide compatibility between original dhclient-script and VyOS, two internal commands/functions are repaced in hooks: ip and make_resolv_conf. So, in all places where used ${ip} or make_resolv_conf, actually using VyOS-tuned functions instead original.
* `ip` function is a wrapper, which automatically chooses what to use: transparently pass a command to /usr/sbin/ip, change a route in kernel table or FRRouting config via vtysh.
* `make_resolv_conf` function main logic was copied from current VyOS implementation and use vyos-hostsd-client for making changes
2. Added:
* Logging. Now is possible to log all changes, what is doing by dhclient-script. Logs can be saved to the journal and displayed in stderr (for debugging purposes). By default, logging to the journal is enabled (at least for some time) to provide a way to collect enough information in case if some bug in this new implementation will be found. This can be changed in the 01-vyos-logging file.
3. Fixed/Changed:
* If DHCP lease was expired, released or dhclient was stopped, dhclient-script will try to delete default route from this lease.
* Instead of blindly killing all dhclients in case if FRRouting daemon is not running, now used more intelligent logic:
* dhclients are stopping natively (with all triggers processing), instead of killing;
* dhclient-script will not kill parent dhclient process. This allows to fix the problem when systemd inform about failing to rise up interfaces at early boot stages (used in Cloud-init images);
* dhclient-script will not touch dhclients, which are not related to the current interface or IP protocol version.
* For getting FRRouting daemon status used native way via watchfrr.sh, instead of the previous trick with vtysh accessibility.
* before adding a new route to FRRouting configuration, this route will be deleted from the kernel (if it is presented there). This allows to properly replace routes, added at early boot stages, when FRR not available.
* Routes in FRRouting are adding with "tag 210". This allows protecting static routes, added via CLI, from deletion when old routes are deleting by DHCP.
* DNS servers will be reconfigured only when $new_domain_name_servers are not the same as $old_domain_name_servers. Previously, this was done during each RENEW procedure.
* Replacing MTU for preconfigured one was changed to Python (via vyos.config). The previous version with vyatta-interfaces.pl was obsoleted and seems to be broken.
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This is actually an "upstream" bug, see [1] but it can be fixed via our own
scripts.
[1]: https://bugs.launchpad.net/ubuntu/+source/net-snmp/+bug/1384122
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Commit 7e00ffa ("Debian: add vyos-1x-vmware package") added a new subpackage,
but by adding this package it was forgotton to create the appropriate
vyos-1x.install file.
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