show ip interfaces is enhanced recently to support multi ASIC platforms in this PR- https://github.com/Azure/sonic-utilities/pull/1396 .
The ipintutil script as to run as sudo user, to get the ip interface from each namespace.
Add this script to the sudoer file so that show ip interface command is available for user with read-only permissions
Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>
- Why I did it
The pcie configuration file location is under plugin directory not under platform directory.
#6437
- How I did it
Move all pcie.yaml configuration file from plugin to platform directory.
Remove unnecessary timer to start pcie-check.service
Move pcie-check.service to sonic-host-services
- How to verify it
Verify on the device
- Why I did it
Group all SONiC services together and able to manage them together. Will be used in config reload command as much simpler and generic way to restart services.
- How I did it
Add services to sonic.target
- How to verify it
Together with Azure/sonic-utilities#1199
config reload -y
Signed-off-by: Stepan Blyshchak <stepanb@nvidia.com>
Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan arlakshm@microsoft.com
- Why I did it
This PR has the changes to support having different swss.rec and sairedis.rec for each asic.
The logrotate script is updated as well
- How I did it
Update the orchagent.sh script to use the logfile name options in these PRs(Azure/sonic-swss#1546 and Azure/sonic-sairedis#747)
In multi asic platforms the record files will be different for each asic, with the format swss.asic{x}.rec and sairedis.asic{x}.rec
Update the logrotate script for multiasic platform .
- Why I did it
As of Azure/sonic-utilities#1297, subcommands of pcieutil have changed to remove the redundant pcie- prefix. This PR adapts calling applications (pcie-check) to the new syntax.
Resolves#6676
- How I did it
Remove pcie- prefix from pcieutil subcommands in calling applications
Also add pcieutil * to sudoers file, as pcieutil requires elevated permissions
fixesAzure/sonic-utilities#1389
With the recent changes in sudoer files. The show commands fails for the read-only users.
The problem here is the 'docker ps' is failing in the function [get_routing_stack()](8a1109ed30/show/main.py (L54)) therefore all the CLI commands are failing.
Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>
Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>
- Why I did it
The command sudo ip netns identify <pid> is used in function get_current_namespace
to check in the cli command is running in host context or within a namespace.
This function is used for every CLI command and command sudo ip netns identify <pid> needs to be added in sudoer files to allow users with RO access to run show cli commands
This problem is not there on single asic platforms.
- How I did it
Add ip netns identify [0-9]* to sudoers file.
* [warm boot finalizer] only wait for enabled components to reconcile
Define the component with its associated service. Only wait for components that have associated service enabled to reconcile during warm reboot.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
**- Why I did it**
This PR aims to monitor the running status of each container. Currently the auto-restart feature was enabled. If a critical process exited unexpected, the container will be restarted. If the container was restarted 3 times during 20 minutes, then it will not run anymore unless we cleared the flag using the command `sudo systemctl reset-failed <container_name>` manually.
**- How I did it**
We will employ Monit to monitor a script. This script will generate the expected running container list and compare it with the current running containers. If there are containers which were expected to run but were not running, then an alerting message will be written into syslog.
**- How to verify it**
I tested this feature on a lab device `str-a7050-acs-3` which has single ASIC and `str2-n3164-acs-3` which has a Multi-ASIC. First I manually stopped a container by running the command `sudo systemctl stop <container_name>`, then I checked whether there was an alerting message in the syslog.
Signed-off-by: Yong Zhao <yozhao@microsoft.com>
In scenario where upgrade gets config from minigraph, it could miss tacacs credentials as they are not in minigraph. Hence restore explicitly upon load-minigraph, if present.
- Why I did it
Upon boot, when config migration is required, the switch could load config from minigraph. The config-load from minigraph would wipe off TACACS key and disable login via TACACS, which would disable all remote user access. This change, would re-configure the TACACS if there is a saved copy available.
- How I did it
When config is loaded from minigraph, look for a TACACS credentials back up (tacacs.json) under /etc/sonic/old_config. If present, load the credentials into running config, before config-save is called.
- How to verify it
Remove /etc/sonic/config_db.json and do an image update. Upon reboot, w/o this change, you would not be able ssh in as remote user. You may login as admin and check out, "show tacacs" & "show aaa" to verify that tacacs-key is missing and login is not enabled for tacacs.
With this change applied, remove /etc/sonic/config_db.json, but save tacacs & aaa credentials as tacacs.json in /etc/sonic/. Upon reboot, you should see remote user access possible.
Added source interface support for NTP.
Also made NTP start on Mgmt-VRF by default when configured.
**- How I did it**
1) Updated hostcfg to listen to global config NTP and NTP_SERVER tables and restart ntp when ever the configuration changes. NTP table includes source interface configuration.
2) The ntp script updated to by default start on Mgmt-VFT when configured.
Signed-off-by: Prabhu Sreenivasan <prabhu.sreenivasan@broadcom>
Certain platform specific packages sonic-platform-xyz, installs files onto rootfs, which would be placed on read-write mount path on /host/image-name/rw/...
when ntpd starts it tries to do read access on /usr/bin /usr/sbin/ /usr/local/bin , which inturn links further to the read-write mount path also.
Where ntpd would get below Apparmor Warning message
LOG:-
audit: type=1400 audit(1606226503.240:21): apparmor="DENIED" operation="open" profile="/usr/sbin/ntpd" name="/image-HEAD-dirty-20201111.173951/rw/usr/local/bin/" pid=3733 comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
audit: type=1400 audit(1606226503.240:22): apparmor="DENIED" operation="open" profile="/usr/sbin/ntpd" name="/image-HEAD-dirty-20201111.173951/rw/usr/sbin/" pid=3733 comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
audit: type=1400 audit(1606226503.240:23): apparmor="DENIED" operation="open" profile="/usr/sbin/ntpd" name="/image-HEAD-dirty-20201111.173951/rw/usr/bin/" pid=3733 comm="ntpd" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Fix:
Add rw/.. mount path similar to root path access provided for ntpd in /etc/apparmor.d/usr.sbin.ntpd
Signed-off-by: Antony Rheneus <arheneus@marvell.com>
Create new file to "sysctl.d" with desired panic conditions.
It will trigger a vmcore dump using kdump-tools on these situations.
Signed-off-by: Shlomi Bitton <shlomibi@nvidia.com>
The default /etc/default/kdump-tools file provided by the kdump-tools
package doesn't set a value for KDUMP_CMDLINE_APPEND.
The default kdump command line arguments need to be set in order
to extend them to use additional arguments required for SONiC
platforms.
Signed-off-by: Rajendra Dendukuri <rajendra.dendukuri@broadcom.com>
- Why I did it
Move frr logs from syslog from the directory /var/log/quagga/.log to /var/log/frr/log
- How I did it
Updated the rsyslog config files.
- How to verify it
Verified the logs come into the file zebra.log and bgpd.log in the DIR /var/log/frr/log
- Allow platform specific reboot script to be called after crash kernel has
finished copying the kernel vmcore
- Disable pcie advanced features when running crash kernel. This improves
reliability of the crash kernel to successfully create a vmcore and also
reboot
- Allow crash kernel to reboot if a panic is seen while it is generating a
vmcore
- Fix crash kernel to use the SONiC specific /usr/local/bin/reboot script
instead of the Linux reboot command /sbin/reboot
- Use sonic_platform as the kernel command line parameter to pass platform identifier string
Signed-off-by: Rajendra Dendukuri <rajendra.dendukuri@broadcom.com>
Make sure ntp-config service is executed before ntpd
Updated ntp-config service files to force dependency with ntp service. Also resolved circular dependency with --no-block flag. (needed as ntp-config service internally invokes systemd to restart ntp which in turn waits for ntp-config to complete)
Signed-off-by: Prabhu Sreenivasan <prabhu.sreenivasan@broadcom.com>
**- Why I did it**
Align style with slightly modified PEP8 standards (extend maximum line length to 120 chars). This will also help in the transition to Python 3, where it is more strict about whitespace, plus it helps unify style among the SONiC codebase. Will tackle other directories in separate PRs.
**- How I did it**
Using `autopep8 --in-place --max-line-length 120` and some manual tweaks.
* [bash.bashrc] Add reverse SSH script to bash.bashrc
* Fix command issue and add emptt line before EOF
* Add checks for SSH_TARGET_CONSOLE_LINE
Signed-off-by: Jing Kan jika@microsoft.com
- Why I did it
Add reboot history to State db so that can be used telemetry service
- How I did it
Split the process-reboot-cause service to determine-reboot-cause and process-reboot-cause
determine-reboot-cause to determine the reboot cause
process-reboot-cause to parse the reboot cause files and put the reboot history to state db
Moved to sonic-host-service* packages
- How to verify it
Performed unit test and tested on DUT
Fix 259 alerts reported by the LGTM tool:
- 245 for Unused import
- 7 for Testing equality to None
- 5 for Duplicate key in dict literal
- 1 for Module is imported more than once
- 1 for Unused local variable
- Why I did it
There is a issue for counters after warm-reboot:
If I clear counters by command "sonic-clear counters", then execute 'warm-reboot' and whenSONiC is restart, the counters showed with command "show interface counters" is still old counters before "sonic-clear". It is not the right counters because the counters file in '/tmp' is lost in warm-reboot process.
- How I did it
I fixed it by saving '/tmp/portstat-0' folders in '/host/' before executing 'warm-reboot' (in pull request Azure/sonic-utilities#1099 ), and restore the counters folders back to '/tmp/' after warm-reboot process is finished.
- How to verify it
Clear counters by command 'sonic-clear'
sonic-clear counters
sonic-clear dropcounters
sonic-clear pfccounters
sonic-clear queuecounters
sonic-clear rifcounters
Execute 'warm-reboot'
Use command ‘show interface counters’ to see if the counters is right.
* Add explicit default state into the constants.yml
* Enable/disable only peer-groups, available in the config
* Retrieve updates from frr before using configuration
Co-authored-by: Pavel Shirshov <pavel.contrib@gmail.com>
When forced mgmt routes are present, the issue fixed as part of #5754 is not complete.
Added a preference(priority) field to forced mgmt route ip rules
In multi asic platforms the "show ip bgp summary" commands is not available for user with read only privileges, so to fix this the vtysh command with the new "-n" option, added for multi asic platforms, needs to be added to the READ_ONLY_COMMANDS list in the sudoers files. Added the command vtysh -n [0-9] -c show * to list of READ_ONLY_COMMANDS in the sudoers files in this commit.
Signed-off-by: Arvindsrinivasan Lakshmi Narasimhan <arlakshm@microsoft.com>
To consolidate host services and install via packages instead of file-by-file, also as part of migrating all of SONiC to Python 3, as Python 2 is no longer supported.
Our use case is to register new features in runtime. The previous change which introduced the cache broke this capability and caused hostcfgd crash.
Signed-off-by: Stepan Blyshchak <stepanb@nvidia.com>
- Convert core_uploader.py script to Python 3
- Use logger from sonic-py-common for uniform logging
- Reorganize imports alphabetically per PEP8 standard
- Two blank lines precede functions per PEP8 standard
- Remove unnecessary global variable declarations
* This was a temporary fix for orchagent spamming log messages and causing rate limiting, leading to critical messages being dropped for the syslog. No longer needed since Azure/sonic-sairedis#680 was merged.
FixAzure/SONiC#551
When eth0 IP address is configured, an ip rule is getting added for eth0 IP address through the interfaces.j2 template.
This eth0 ip rule creates an issue when VRF (data VRF or management VRF) is also created in the system.
When any VRF (data VRF or management VRF) is created, a new rule is getting added automatically by kernel as "1000: from all lookup [l3mdev-table]".
This l3mdev IP rule is never getting deleted even if VRF is deleted.
Once if this l3mdev IP rule is added, if user configures IP address for the eth0 interface, interfaces.j2 adds an eth0 IP rule as "1000:from 100.104.47.74 lookup default ". Priority 1000 is automatically chosen by kernel and hence this rule gets higher priority than the already existing rule "1001:from all lookup local ".
This results in an issue "ping from console to eth0 IP does not work once if VRF is created" as explained in Issue 551.
More details and possible solutions are explained as comments in the Issue551.
This PR is to resolve the issue by always fixing the low priority 32765 for the IP rule that is created for the eth0 IP address.
Tested with various combinations of VRF creation, deletion and IP address configuration along with ping from console to eth0 IP address.
Co-authored-by: Kannan KVS <kannan_kvs@dell.com>
Why/How I did:
Make sure first error syslog is triggered based on FAULT TOLERANCE condition.
Added support of repeat clause with alert action. This is used as trigger
for generation of periodic syslog error messages if error is persistent
Updated the monit conf files with repeat every x cycles for the alert action
- Why I did it
The update_all_feature_states can run in the range of 20+ seconds to one minute. With load of AAA & Tacacs preceding it, any DB updates in AAA/TACACS during the long running feature updates would get missed. To avoid, switch the order.
- How I did it
Do a load after after updating all feature states.
- How to verify it
Not a easy one
Have a script that
restart hostcfgd
sleep 2s
run redis-cli/config command to update AAA/TACACS table
Run the script above and watch the file /etc/pam.d/common-auth-sonic for a minute.
- When it repro:
The updates will not reflect in /etc/pam.d/common-auth-sonic
To consolidate host services and install via packages instead of file-by-file, also as part of migrating all of SONiC to Python 3, as Python 2 is no longer supported, convert caclmgrd to Python 3 and add to sonic-host-services package
* Initial commit for BGP internal neighbor table support.
> Add new template named "internal" for the internal BGP sessions
> Add a new table in database "BGP_INTERNAL_NEIGHBOR"
> The internal BGP sessions will be stored in this new table "BGP_INTERNAL_NEIGHBOR"
* Changes in template generation tests with the introduction of internal neighbor template files.
The psutil library used in process_checker create a cache for each
process when calling process_iter. So, there is some possibility that
one process exists when calling process_iter, but not exists when
calling cmdline, which will raise a NoSuchProcess exception. This commit
fix the issue.
Signed-off-by: bingwang <bingwang@microsoft.com>
**- Why I did it**
Install all host services and their data files in package format rather than file-by-file
**- How I did it**
- Create sonic-host-services Python wheel package, currently including procdockerstatsd
- Also add the framework for unit tests by adding one simple procdockerstatsd test case
- Create sonic-host-services-data Debian package which is responsible for installing the related systemd unit files to control the services in the Python wheel. This package will also be responsible for installing any Jinja2 templates and other data files needed by the host services.
**- Why I did it**
On teamd docker restart, the swss and syncd needs to be restarted as there are dependent resources present.
**- How I did it**
Add the teamd as a dependent service for swss
Updated the docker-wait script to handle service and dependent services separately.
Handle the case of warm-restart for the dependent service
**- How to verify it**
Verified the following scenario's with the following testbed
VM1 ----------------------------[DUT 6100] -----------------------VM2, ping traffic continuous between VMs
1. Stop teamd docker alone
> swss, syncd dockers seen going away
> The LAG reference count error messages seen for a while till swss docker stops.
> Dockers back up.
2. Enable WR mode for teamd. Stop teamd docker alone
> swss, syncd dockers not removed.
> The LAG reference count error messages not seen
> Repeated stop teamd docker test - same result, no effect on swss/syncd.
3. Stop swss docker.
> swss, teamd, syncd goes off - dockers comes back correctly, interfaces up
4. Enable WR mode for swss . Stop swss docker
> swss goes off not affecting syncd/teamd dockers.
5. Config reload
> no reference counter error seen, dockers comes back correctly, with interfaces up
6. Warm reboot, observations below
> swss docker goes off first
> teamd + syncd goes off to the end of WR process.
> dockers comes back up fine.
> ping traffic between VM's was NOT HIT
7. Fast reboot, observations below
> teamd goes off first ( **confirmed swss don't exit here** )
> swss goes off next
> syncd goes away at the end of the FR process
> dockers comes back up fine.
> there is a traffic HIT as per fast-reboot
8. Verified in multi-asic platform, the tests above other than WR/FB scenarios
**- Why I did it**
If we ran the CLI commands `sudo config feature autorestart snmp disabled/enabled` or `sudo config feature autorestart swss disabled/enabled`, then SNMP container will be stopped and started. This behavior was not expected since we updated the `auto_restart` field not update `state` field in `FEATURE` table. The reason behind this issue is that either `state` field or `auto_restart` field was updated, the function `update_feature_state(...)` will be invoked which then starts snmp.timer service.
The snmp.timer service will first stop snmp.service and later start snmp.service.
In order to solve this issue, the function `update_feature_state(...)` will be only invoked if `state` field in `FEATURE` table was
updated.
**- How I did it**
When the demon `hostcfgd` was activated, all the values of `state` field in `FEATURE` table of each container will be
cached. Each time the function `feature_state_handler(...)` is invoked, it will determine whether the `state` field of a
container was changed or not. If it was changed, function `update_feature_state(...)` will be invoked and the cached
value will also be updated. Otherwise, nothing will be done.
**- How to verify it**
We can run the CLI commands `sudo config feature autorestart snmp disabled/enabled` or `sudo config feature autorestart swss disabled/enabled` to check whether SNMP container is stopped and started. We also can run the CLI commands `sudo config feature state snmp disabled/enabled` or `sudo config feature state swss disabled/enabled` to check whether the container is stopped and restarted.
Signed-off-by: Yong Zhao <yozhao@microsoft.com>
**- Why I did it**
To introduce dynamic support of BBR functionality into bgpcfgd.
BBR is adding `neighbor PEER_GROUP allowas-in 1' for all BGP peer-groups which points to T0
Now we can add and remove this configuration based on CONFIG_DB entry
**- How I did it**
I introduced a new CONFIG_DB entry:
- table name: "BGP_BBR"
- key value: "all". Currently only "all" is supported, which means that all peer-groups which points to T0s will be updated
- data value: a dictionary: {"status": "status_value"}, where status_value could be either "enabled" or "disabled"
Initially, when bgpcfgd starts, it reads initial BBR status values from the [constants.yml](https://github.com/Azure/sonic-buildimage/pull/5626/files#diff-e6f2fe13a6c276dc2f3b27a5bef79886f9c103194be4fcb28ce57375edf2c23cR34). Then you can control BBR status by changing "BGP_BBR" table in the CONFIG_DB (see examples below).
bgpcfgd knows what peer-groups to change fron [constants.yml](https://github.com/Azure/sonic-buildimage/pull/5626/files#diff-e6f2fe13a6c276dc2f3b27a5bef79886f9c103194be4fcb28ce57375edf2c23cR39). The dictionary contains peer-group names as keys, and a list of address-families as values. So when bgpcfgd got a request to change the BBR state, it changes the state only for peer-groups listed in the constants.yml dictionary (and only for address families from the peer-group value).
**- How to verify it**
Initially, when we start SONiC FRR has BBR enabled for PEER_V4 and PEER_V6:
```
admin@str-s6100-acs-1:~$ vtysh -c 'show run' | egrep 'PEER_V.? allowas'
neighbor PEER_V4 allowas-in 1
neighbor PEER_V6 allowas-in 1
```
Then we apply following configuration to the db:
```
admin@str-s6100-acs-1:~$ cat disable.json
{
"BGP_BBR": {
"all": {
"status": "disabled"
}
}
}
admin@str-s6100-acs-1:~$ sonic-cfggen -j disable.json -w
```
The log output are:
```
Oct 14 18:40:22.450322 str-s6100-acs-1 DEBUG bgp#bgpcfgd: Received message : '('all', 'SET', (('status', 'disabled'),))'
Oct 14 18:40:22.450620 str-s6100-acs-1 DEBUG bgp#bgpcfgd: execute command '['vtysh', '-f', '/tmp/tmpmWTiuq']'.
Oct 14 18:40:22.681084 str-s6100-acs-1 DEBUG bgp#bgpcfgd: execute command '['vtysh', '-c', 'clear bgp peer-group PEER_V4 soft in']'.
Oct 14 18:40:22.904626 str-s6100-acs-1 DEBUG bgp#bgpcfgd: execute command '['vtysh', '-c', 'clear bgp peer-group PEER_V6 soft in']'.
```
Check FRR configuraiton and see that no allowas parameters are there:
```
admin@str-s6100-acs-1:~$ vtysh -c 'show run' | egrep 'PEER_V.? allowas'
admin@str-s6100-acs-1:~$
```
Then we apply enabling configuration back:
```
admin@str-s6100-acs-1:~$ cat enable.json
{
"BGP_BBR": {
"all": {
"status": "enabled"
}
}
}
admin@str-s6100-acs-1:~$ sonic-cfggen -j enable.json -w
```
The log output:
```
Oct 14 18:40:41.074720 str-s6100-acs-1 DEBUG bgp#bgpcfgd: Received message : '('all', 'SET', (('status', 'enabled'),))'
Oct 14 18:40:41.074720 str-s6100-acs-1 DEBUG bgp#bgpcfgd: execute command '['vtysh', '-f', '/tmp/tmpDD6SKv']'.
Oct 14 18:40:41.587257 str-s6100-acs-1 DEBUG bgp#bgpcfgd: execute command '['vtysh', '-c', 'clear bgp peer-group PEER_V4 soft in']'.
Oct 14 18:40:42.042967 str-s6100-acs-1 DEBUG bgp#bgpcfgd: execute command '['vtysh', '-c', 'clear bgp peer-group PEER_V6 soft in']'.
```
Check FRR configuraiton and see that the BBR configuration is back:
```
admin@str-s6100-acs-1:~$ vtysh -c 'show run' | egrep 'PEER_V.? allowas'
neighbor PEER_V4 allowas-in 1
neighbor PEER_V6 allowas-in 1
```
*** The test coverage ***
Below is the test coverage
```
---------- coverage: platform linux2, python 2.7.12-final-0 ----------
Name Stmts Miss Cover
----------------------------------------------------
bgpcfgd/__init__.py 0 0 100%
bgpcfgd/__main__.py 3 3 0%
bgpcfgd/config.py 78 41 47%
bgpcfgd/directory.py 63 34 46%
bgpcfgd/log.py 15 3 80%
bgpcfgd/main.py 51 51 0%
bgpcfgd/manager.py 41 23 44%
bgpcfgd/managers_allow_list.py 385 21 95%
bgpcfgd/managers_bbr.py 76 0 100%
bgpcfgd/managers_bgp.py 193 193 0%
bgpcfgd/managers_db.py 9 9 0%
bgpcfgd/managers_intf.py 33 33 0%
bgpcfgd/managers_setsrc.py 45 45 0%
bgpcfgd/runner.py 39 39 0%
bgpcfgd/template.py 64 11 83%
bgpcfgd/utils.py 32 24 25%
bgpcfgd/vars.py 1 0 100%
----------------------------------------------------
TOTAL 1128 530 53%
```
**- Which release branch to backport (provide reason below if selected)**
- [ ] 201811
- [x] 201911
- [x] 202006
There is currently a bug where messages from swss with priority lower than the current log level are still being counted against the syslog rate limiting threshhold. This leads to rate-limiting in syslog when the rate-limiting conditions have not been met, which causes several sonic-mgmt tests to fail since they are dependent on LogAnalyzer. It also omits potentially useful information from the syslog. Only rate-limiting messages of level INFO and lower allows these tests to pass successfully.
Signed-off-by: Lawrence Lee <lawlee@microsoft.com>
**- Why I did it**
I was asked to change "Allow list" prefix-list generation rule.
Previously we generated the rules using following method:
```
For each {prefix}/{masklen} we would generate the prefix-rule
permit {prefix}/{masklen} ge {masklen}+1
Example:
Prefix 1.2.3.4/24 would have following prefix-list entry generated
permit 1.2.3.4/24 ge 23
```
But we discovered the old rule doesn't work for all cases we have.
So we introduced the new rule:
```
For ipv4 entry,
For mask < 32 , we will add ‘le 32’ to cover all prefix masks to be sent by T0
For mask =32 , we will not add any ‘le mask’
For ipv6 entry, we will add le 128 to cover all the prefix mask to be sent by T0
For mask < 128 , we will add ‘le 128’ to cover all prefix masks to be sent by T0
For mask = 128 , we will not add any ‘le mask’
```
**- How I did it**
I change prefix-list entry generation function. Also I introduced a test for the changed function.
**- How to verify it**
1. Build an image and put it on your dut.
2. Create a file test_schema.conf with the test configuration
```
{
"BGP_ALLOWED_PREFIXES": {
"DEPLOYMENT_ID|0|1010:1010": {
"prefixes_v4": [
"10.20.0.0/16",
"10.50.1.0/29"
],
"prefixes_v6": [
"fc01:10::/64",
"fc02:20::/64"
]
},
"DEPLOYMENT_ID|0": {
"prefixes_v4": [
"10.20.0.0/16",
"10.50.1.0/29"
],
"prefixes_v6": [
"fc01:10::/64",
"fc02:20::/64"
]
}
}
}
```
3. Apply the configuration by command
```
sonic-cfggen -j test_schema.conf --write-to-db
```
4. Check that your bgp configuration has following prefix-list entries:
```
admin@str-s6100-acs-1:~$ show runningconfiguration bgp | grep PL_ALLOW
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V4 seq 10 deny 0.0.0.0/0 le 17
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V4 seq 20 permit 127.0.0.1/32
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V4 seq 30 permit 10.20.0.0/16 le 32
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V4 seq 40 permit 10.50.1.0/29 le 32
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V4 seq 10 deny 0.0.0.0/0 le 17
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V4 seq 20 permit 127.0.0.1/32
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V4 seq 30 permit 10.20.0.0/16 le 32
ip prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V4 seq 40 permit 10.50.1.0/29 le 32
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V6 seq 10 deny ::/0 le 59
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V6 seq 20 deny ::/0 ge 65
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V6 seq 30 permit fc01:10::/64 le 128
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_1010:1010_V6 seq 40 permit fc02:20::/64 le 128
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V6 seq 10 deny ::/0 le 59
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V6 seq 20 deny ::/0 ge 65
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V6 seq 30 permit fc01:10::/64 le 128
ipv6 prefix-list PL_ALLOW_LIST_DEPLOYMENT_ID_0_COMMUNITY_empty_V6 seq 40 permit fc02:20::/64 le 128
```
Co-authored-by: Pavel Shirshov <pavel.contrib@gmail.com>
When a large number of changes occur to the ACL table of Config DB, caclmgrd will get flooded with notifications, and previously, it would regenerate and apply the iptables rules for each change, which is unnecessary, as the iptables rules should only get applied once after the last change notification is received. If the ACL table contains a large number of control plane ACL rules, this could cause a large delay in caclmgrd getting the rules applied.
This patch causes caclmgrd to delay updating the iptables rules until it has not received a change notification for at least 0.5 seconds.
