This service (weekly) will let SSD firmware to do the garbage collection
after file-system deleted files. It could avoid slowness or
even READ-ONLY error due to SSD not being able to free the pages
even though the file system thinks there was a lot of space left.
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
After warm reboot is done, we need to disable warm reboot flag and
tear down anything setup for warm reboot and persisted across.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
- Why it is required
since SONiC master switches ifupdown package to the new implementation (ifupdown2), it is required to change the configuration of a platform-specific interface for wedge100bf_32x and wedge100bf_65x platforms (bc of ifupdown2 doesn't support auto mode for inet6 protocol).
Also, need to make some refactoring and remove if platform == smth then.. from the system level scripts.
- What I did
removed customization of /usr/bin/interfaces-config.sh
explicitly created directory /etc/network/interfaces.d
added "source" to the /etc/network/interfaces generation template (to include platform-specific interfaces processing)
added platform-specific interfaces config itself (for wedge100bf_32x and wedge100bf_65x)
fixed testcase in sonic-config-engine
- How to verify it
build image for wedge100bf_32x
perform sudo config reload -y on new installation
check the correct configuration of usb0 interface
- Description for the changelog
Allow configuration of platform-specific interfaces
* Add a log message for each notification of add/del TACACS server.
Signed-off-by: Renuka Manavalan <remanava@microsoft.com>
* Moved another syslog message from DEBUG to INFO to be able to see those notifications.
All these changes are to help with a one-time-seen-bug, that hostcfgd did not act upon changes to redis for TACACS servers. We could not repro the bug.
Signed-off-by: Renuka Manavalan <remanava@microsoft.com>
* [updategraph] After system upgrade, restore files/directories with
original attributes etc.
Restore a few more files that was missed before.
Restore FRR configuration directory if exists on old system
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
* Removed deployment_id_asn_map.yml from copy list
Signed-off-by: Zhenggen Xu <zxu@linkedin.com>
* [reboot cause] Move reboot-cause files to /host directory so they persist across SONiC upgrades
* [sonic-utilities] Update submodule to include related changes
- What I did
This fix removes the possibility of 'localhost' entry getting removed from /etc/hosts file by hostname-config service.
Without this change, whenever we change the hostname from 'localhost' to any other name on the config_db.json and reload the config, /etc/hosts file will only have the new hostname on it. But there are multiple sonic utilities (eg: swssconfig) which relies on the hard coded 'localhost' name and they tend to stop working.
- How I did it
Added a new check on hostname-config.sh script to avid blindly deleting the line containing the old hostname from /etc/hosts file. Now it will delete the old hostname only if its not localhost or when the hostname is not changing.
- How to verify it
Bring up SONiC on a device with hostname as localhost
Edit /etc/sonic/config_db.json to update the 'hostname' filed under DEVICE_METADATA from "hostname" : "localhost" --> "hostname" : "sonic"
run config reload -y to reflect the hostname change done on config_db.json file.
cat /etc/hosts and check whether both 127.0.0.1 localhost and 127.0.0.1 sonic entry are present on the file.
ping localhost should work fine.
- Description for the changelog
Make hostname-config service more robust in handling SONiC hostname change from localhost to anything else.
* [update graph] adapt to warm reboot scenario
When migrating configuration, always copy config files from old_config
to /etc/sonic. But if warm reboot is detected, then skip configuration
operations.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* log file copies and misses
This driver should be loaded by sonic service. If kernel tries to load
it, the driver would be loaded with default parameters, which is not
right for sonic.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
Auto negotiating console speed could cause sonic to lock on a wrong
speed under rare conditions. The only way to come out of the wrong
speed is to issue line break or restart console service with forced
speed, or reboot sonic.
Lock down the console speed to avoid these situations.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
Remove the teamd.j2 templates used for starting the teamd. Add
teammgrd instead to manage all port channel related configuration
changes. Remove front panel port related configurations in
interfaces.j2 templates as well.
Remove teamd.sh script and use teammgrd to start all the teamd
processes. Remove all the logics in the start.sh script as well.
Update the sonic-swss submodule.
Signed-off-by: Shu0T1an ChenG <shuche@microsoft.com>
* [updategraph] add support to use preset config instead of default minigraph
* Fix variable case
* Remove default minigraph case
* Remove default minigraphs and add default_sku files
- Move front panel ports and port channels MTU and IP configurations out of
the current /etc/network/interfaces file and store them in the configuration
database.
- The default MTU value for both front panel ports and the port channels is
9100. They are set via the minigraph or 9100 by default.
- Introduce portmgrd which will pick up the MTU configurations from the
configuration database.
- The updated intfmgrd will pick up IP address changes from the configuration
database.
- Update sonic-swss submodule
Signed-off-by: Shu0T1an ChenG <shuche@microsoft.com>
Previously use / to separate container name and program name.
However, in rsyslogd:
Precisely, the programname is terminated by either (whichever occurs first):
end of tag
nonprintable character
‘:’
‘[‘
‘/’
The above definition has been taken from the FreeBSD syslogd sources.
Signed-off-by: Guohan Lu <gulv@microsoft.com>
* Initial commit
* Add Ingrasys S9180-32X platform dirver.
Signed-off-by: Wade He <chihen.he@gmail.com>
* Add bfn.service for init barefoot.
Signed-off-by: Wade He <chihen.he@gmail.com>
* [Barefoot Beta] Add some functions and fixed some bugs.
1. Update sensors.conf.
2. Fixed IO expander init.
3. Fixed PSU EEPROM.
4. Fixed MB EEPROM.
5. Add fancontrol and fan init.
6. Add SYS LED control (sys, fan, fan tray).
7. 2.5V compute and setup max and min.
8. Fixed typo MB eeprom delete address.
9. Remove coretemp to BMC.
10. Add active CPLD.
11. Modify SFP+ GPIO slave address.
12. Modify tmp75 Near Port 32 slave address.
Signed-off-by: Wade He <chihen.he@gmail.com>
* Add bfn script in /etc/init.d/
Signed-off-by: Wade He <chihen.he@gmail.com>
* Add bfn service in debian
Signed-off-by: Wade He <chihen.he@gmail.com>
* Fixed CPLD switch LED behavior.
Signed-off-by: Wade He <chihen.he@gmail.com>
* [Barefoot Beta] Fixed sensors and hwmon order.
1. Fixed ignore sensors Vbat.
2. Reorg hwmon order.
Signed-off-by: Wade He <chihen.he@gmail.com>
* Fixed PSU1 and PSU2 EEPROM order.
Signed-off-by: Wade He <chihen.he@gmail.com>
* initial barefoot checkin october 2017
* update refpoint
* update refpoints
* update refpoints to bf-master
* update refpoint
* update refpoint to tested version
* change to platform from asic
* update refpoint for swss
* revert core creation setting
* update refpoints
* add telnet for debug shell
* update refpoints 11/17/17
* missed change in file on previous merge
* [CPLD] Fixed blink LED issue.
* Fixed blink LED mask set error.
Signed-off-by: Wade He <chihen.he@gmail.com>
* Update bf_kdrv.c for 6.0.2.39
* Update bf kernel driver
* Add bf_fun kernel module.
* Update bf_tun for fixed build error
* merge with Azure master (12/12/17)
* update swss refpoint
* update refpoint of swss
* library dependency for stack unroll
* update refpoint to bf-master
* [DHCP relay]: Fix circuit ID and remote ID bugs (#1248)
* [DHCP relay]: Fix circuit ID and remote ID bugs
* Set circuit_id_len after setting circuit_id_len to ip->name
* [Platform] Add Psuutil and update sensors.conf for S9100-32X, S8810-32Q and S9200-64X (#1272)
* Add I2C CPLD kernel module for psuutil.
* Support psuutil script.
* Add voltage min and max threshold.
* Update sensors.conf for tmp75.
Signed-off-by: Wade He <chihen.he@gmail.com>
* Allow multi platform support - infra (more changes to follow)
* update relative path to include platform for clarity
* [Platform] Add Ingrasys S9130-32X and S9230-64X with Nephos Switch ASIC for "branch 201712" (#1274)
- What I did
Add switch ASIC vendor: Nephos
Add Nephos platforms: Ingrasys S9130-32X, Ingrasys S9230-64X
- How I did it
Add platform/nephos files
Add platform/nephos/sonic-platform-modules-ingrasys submodule
Add device/ingrasys/x86_64-ingrasys_s9130_32x-r0 files
Add device/ingrasys/x86_64-ingrasys_s9230_64x-r0 files
Add SONiC to support Nephos platform
Update Head of submodule src/sonic-sairedis to "3b817bb"
- How to verify it
To build SONiC installer image and docker images, run the following commands:
make configure PLATFORM=nephos
make target/sonic-nephos.bin
Check system and network feature is worked as well
- Description for the changelog
Add switch ASIC vendor and platforms for Nephos
- A picture of a cute animal (not mandatory but encouraged)
Signed-off-by: Sam Yang <yang.kaiyu@gmail.com>
* change source of files to github (from dropbox), update sairedis refpoint
* update refpoint of sairedis
* [centec] support CENTEC SAI 1.0 on 201712 branch and update e582-48x6q board (#1269)
* [marvel]: Marvell's updates for SONiC.201712 & SAI v1.0 (#1287)
* update sairedis (fast-boot refpoint)
* fix syncd rpc make files
* update refpoint to handle Makefile change (no functional change)
* [Marvell]: Add support for SLM5401-54x device (#1307)
* Marvell's updates for SONiC.201712 & SAI v1.0
* [Platform] Add Marvell's SLM5401-54x for branch 201712
* [Broadcom]: Update Boradcom SAI package to 3.0.3.3-3 (#1312) (#1321)
- update Arista 7050-QX32S config.bcm file
- update Accton th-as771*-32x100G.config.bcm files
* update refpoint for Makefile chnage in sairedis
* update refpoint - sairedis
* update sairedis to older refpoint till we debug clean build
* export asic platform for build
* update refpoint for makefiles
* [PLATFORM] Centec update E582 driver fan/epprom/sensor (#1332)
* Upload wnc-osw1800
* Modify for Barefoot suggest
* Revert bfn-platform.mk
* Update bfn-platform-wnc.mk
Update parameter name
* Update parameter name
* initial support for WNC platform
* change switch name to "switch"
* Delete bf modules for rel_7_0
* Add Ingrasys S9180 platform
Signed-off-by: Wade He <chihen.he@gmail.com>
* Modify bfnsdk for Ingrasys S9180 platform
Signed-off-by: Wade He <chihen.he@gmail.com>
* Resolved the conflict.
* Resolved the conflict.
* Update submodule path and url.
* Delete unused file.
* Update PSU GPIO and EEPROM for psuutil.
* Add psuutil in S9180-32X
Signed-off-by: Wade He <chihen.he@gmail.com>
* update refpoint
* update refpoint
* change contact email, update refpoint
* cleanup and update kernel modules
* updates based on review
* update refpoint
* update refpoint
* fix typo in config script to check for platforms
* remove stale file
* resolve conflicts
* cleanup diffs with Azure repo and update SDK debs
* update refpoints to Azure
* address review comments
* revert refpoint of swss-common
* porting the build fix from master
* porting build fix from master
* Minor Fix
* Minor fix
* Temp to sde deb packages url
* Update sonic - sairedis,swss & swss-common refpoints
* Update git modules url path to bfn repo
* updated paths for swss, swss-common & sairedis
* Update refpoint for sonic-swss to local bfn repo
* Update URL for downloading sde debian packages
* porting fix links of debian git server from master
* porting fix links of debian git server from master
* [Ingrasys] Add platform support for S9280-64X with Barefoot ASIC
* Update ref points for swss, swss-common and sairedis repos
* Add sonic platform scripts for bfn montara/maverick
* Call sh scripts instead of calling py scripts
* Address upstream PR Comments (#10)
* Update bf-master with azure/master
* Undo changes to some files
* Revert "Address upstream PR Comments (#10)"
This reverts commit a7fddb83ca.
* Address upstream comments (#11)
* Remove all non bfn specific changes from upstream PR
* Revert "Address upstream comments (#11)"
This reverts commit 559132103e.
* Undo non bfn changes
* Little more cleanup
* Add back code removed in merge
* export CONFIGURED_PLATFORM
* Update sairedis and swss refpoints
* Address Upstream PR comment
* change deb pkg dependency from 3.16.0-4-amd64 to 3.16.0-5-amd64
* Set default tx queue len for usb0 interface to 64
* Update sairedis refpoint
* Update swss ref point
* Add bfn buffer cfg files for montara/maverick as per new design
* Update buffer cfg templates for bfn montara
* add non zero size to buffer profile
* add macro to generate port lists
* Update buffer cfg templates for bfn mavericks
* add non zero size for buffer profiles
* add port generation macro
* Add missing psmisc package
* BGP docker seems to be missing killall utility being used by fast-reboot script. This is causing non graceful termination of BGP sessions.
Adding psmisc to resolve this issue.
* Update swss ref point
* Update swss ref point
* Update sairedis refpoint
* Update sairedis refpoint
* Update sairedis refpoint
* Update sairedis refpoint
* Update refpoint for sairedis and swss
* sairedis to azure master
* swss to latest bfn bf-master
* Update gitmodules
Update url for sairedis to azure master
* Correct typo in bfn platform script
* Update swss and sairedis ref points
* Update swss ref point
* Address Review comments
* Update swws path in gitmodules to azure master
* update swss refpoint
* update base docker j2 file -remove psmisc package (could be a concern, would cause fast reboot to not work correctly will fix in another PR)
* Fix sairedis refpoint broken in by previous merge
* Remove psmisc from docker base image
* This will break fast reboot as killall is required for killing bgp process and initiating graceful termination of BGP session.
Will fix this in a seperate PR. Need this for SONIC upstreaming
* Address upstream comments
* Remove bmc interface from interface jinja template and sample output interfaces file
* Add bmc interface at boot time to network interfaces for bfn bmc based platforms
* Remove autogen ingrasys debian files
* Revert "Remove autogen ingrasys debian files"
* Buffer and qos config template fix for bfn platforms (#21)
SWI-1509 Buffer and qos config template fix for bfn platforms
* Fix qos config files for montara & mavericks (#22)
* Reference only ppg 3,4 in qos files as no profiles are attached to 0,1 in buffer configs
* Fix vs test (#23)
* Use MAC from EEPROM for PortChannels
Signed-off-by: Andriy Moroz <c_andriym@mellanox.com>
* Use MAC from EEPROM in DEVICE_METADATA
Will affect MAC for VLAN interfaces
Signed-off-by: Andriy Moroz <c_andriym@mellanox.com>
* Get MAC via decode-syseeprom
Signed-off-by: Andriy Moroz <c_andriym@mellanox.com>
* hw-management is now a service
Signed-off-by: Andriy Moroz <c_andriym@mellanox.com>
* Add error handling for MAC fetch process
Signed-off-by: Andriy Moroz <c_andriym@mellanox.com>
* [rc.local] Move all constants and functions to top of file; Unify style; Reword messages
* Add function to process reboot cause upon boot
* Simplify retrieval of SONIC_VERSION per comments
* Change wording
* [caclmgrd] Heuristically determine whether ACL is IPv4 or IPv6, use iptables/ip6tables accordingly
* Check all rules in table until we find one with a SRC_IP
* Revert "[serial watchdog] remove serial watchdog service dependency to rc.local (#1752)"
* Revert "[service] introducing serial port watchdog service (#1743)"
* [serial watchdog] remove serial watchdog service dependency to rc.local
When restarting this service in rc.local, the dependency causes an error
in syslog. Removing the dependency to mute the error log entry.
* remove lines with empty inputs
* [rc.local] refactor platform identification code to separate function
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* [rc.local] infrastructure to take action according to installer.conf
* [serial port watchdog] add service to watch serial port processes
Monitor serial port processes. Kill ones stuck for too long.
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* [rc.local] start watchdog on serial port specified by installer.conf
Signed-off-by: Ying Xie <ying.xie@microsoft.com>
* [fast-reboot]: support encoded & gzipped minigraph in fast reboot
Signed-off-by: Guohan Lu <gulv@microsoft.com>
* add acl.json and snmp.yml into fast-reboot
Signed-off-by: Guohan Lu <gulv@microsoft.com>
cfggen generates new eth0 configuration. Need to first
clean existing configuration on eth0 before bring up
new configuration on eth0. Thus, we need to first bring
down eth0 before putting new configuration into /etc/network/
interfaces
Signed-off-by: Guohan Lu <gulv@microsoft.com>
* SONiC system telemetry Support
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Update package name from telemetry to sonic-telemetry
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
commit 0965b33 added quote to build_version in /etc/sonic/sonic_version.yml,
e.g., sonic_version : '20170104.10'. scripts to use the $sonic_version need
to remove the quote.
Signed-off-by: Guohan Lu <gulv@microsoft.com>
- Move all minigraph-related action from rc.local to updategraph
- updategraph service is now after database. All feature services are now after and depending on updategraph
* Support OS9 -> SONiC fast-reboot migration
* Address review comments. Update NOS mac in EEPROM and net.rules for eth0
* Address review comments. Update sonic-platform-modules-dell to fac81d...
* Fix script for POSIX compliance
* [TACACS+]: Add configDB enforcer for TACACS+
* hostcfgd - configDB enforcer for TACACS+, listen configDB to
modify the pam configuration for Authentication in host
* Add a service script for hostcfgd
Signed-off-by: Chenchen Qi <chenchen.qcc@alibaba-inc.com>
* [TACACS+]: Generate conf file by template file
* Generate common-auth-sonic and tacplus_nss.conf by jinja2 template
Signed-off-by: Chenchen Qi <chenchen.qcc@alibaba-inc.com>
If device MAC is added to init_cfg.json, it has to be done using
intermediate file. We cannot redirect to same file while trying to read
from it because it will be truncated first.
Signed-off-by: marian-pritsak <marianp@mellanox.com>
* [init]: save the initial switch mac to config db
Save the initial switch mac to config db DEVICE_METADATA|localhost entry.
* update sonic-swss submodule
* Add support for vlanconfd and intfconfd
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Change name to vlanmgrd and intfmgrd
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Add missing vlan_members for parse_dpg result
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Remove cfgmgr debug CLI from image
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
* Update swss and swss-common submodules for VLAN trunk support
Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>
When updategraph service is enabled, a special value 'default'
from DHCP response will now initialize the system with an empty
configuration instead of existing minigraph.
A DHCP response without option 224 will remain the current behavior
of skipping graph update and use existing default minigraph.
Modify minigraph parser output format so it fit DB schema
Modify configuration templates to fit new schema
Systemd services dependencies are modified so database starts before any configuration consumer
* [rsyslog]: Use timegenerated instead of timestamp
This is useful when rsyslog is used to put markers generated on other machines.
This way all messages will have a timestamp from a single system.
* [rsyslog] Use subseconds from local machine
1. "make target/sonic-broadcom.raw" will create the compressed dd'able image.
2. This will also update the grub config files (device/dell/*/nos_to_sonic_grub.cfg) with the image versions.
- Force log rotation at size thresholds only (no longer also rotating logs daily), allowing for more consistent archived log size
- Eliminate remaining duplicate log messages
- Cron facility now only logs to cron.log (was also logging to syslog)
- Debug, mail, news and user log facilities only log to syslog; no longer creating separate log files for these facilities
- Cron job that calls logrotate every minute now uses the main /etc/logrotate.conf file so as to check/rotate all logs every minute, not just the logs specified in the rsyslog file. Also redirecting output of this command to /dev/null to prevent "(CRON) info (No MTA installed, discarding output)" messages in cron.log due to lack of a mail service
- Delete archive files based on remaining /var/log partition space. Note that this solution currently requires a minimum /var/log partition size of 32MB to function correctly
- Update sonic-sairedis and sonic-swss submodules to incorporate recording file name changes
- Add .screen file to .gitignore (unrelated)
If routes are inserted in main table, they wont' be overwritten
by the routes learned via BGP. Then the routes will be missing
from the ASIC.
Thus a default table is used so that control plane and data plane
routes are isolated and could be configured independently.
- Now that logrotate is a cron job that runs every minute, it was polluting syslog
- Also shrink max size of less-important logs to 50MB and rotate them daily by default
* [rc.local]: Copy saved minigraph if available.
In case of sonic-to-sonic update old image stores minigraph under /host
directory. Upon first boot this minigraph will be used by new image to
save configuration.
Signed-off-by: marian-pritsak <marianp@mellanox.com>
- rsyslog logs were being rotated regardless of whether they exceeded their maixmum size. This was due to "-f" flag passed to logrotate in cron job.
- After rotation, /var/log/syslog was never written to again. Instead, logs were written to /var/log/syslog.1. This was due to rsyslog not properly closing the file descriptor to the pre-rotated log.
- Also brought back time-related rotation via the new(er) maxsize option, which performs a boolean OR operation. If the log exceeds the maxsize OR the log hasn't been rotated in the specified, it will be rotated. Using the older size option, the time-based rotation was ignored.
- Also addresses issue #528
* Rename 'ACSFileFormat' -> 'SONiCFileFormat'
* Rename '00-acs.conf' -> '00-sonic.conf'
* Add logrotate.d and systemd-journald config files to image
* Log all SONiC process messages to /var/log/syslog; prevent duplicate logging to /var/log/messages
* Do not redirect cron and daemon logs to their own files, let them log to /var/log/syslog
* Log all teamd messages to /var/log/teamd.log; Add more SONiC program names to SONiC rules clause
* Remove duplicate code by condensing quagga programs into a list; Fix teamd log rule
* Kernel and LPR messages no longer getting duplicated to their own log files
* Now calling logrotate every minute via cron job
* Need full path to logrotate in cron job
* Add '.log' suffix to wildcards, otherwise logrotate will rotate already-rotated logs (e.g., bgpd.log.1.1.1.1.1...)
* Add microsecond granularity to syslog messages
* Don't overwrite system crontab, instead, install additional logrotate crontab file into /etc/cron.d
* Removed incomplete concept of per-process SONiC logs. We can revisit again later
- Do not bring up LAG member ports when LAG is not created.
This is because LAG member ports must be DOWN when joining
the teamd instances due to teamd design. Therefore, we cannot
bring up a LAG member port first and then join the port to a LAG.
Signed-off-by: Shuotian Cheng <shuche@microsoft.com>
- This change is added so that when doing ifdown/ifup to flap the
interface, it will success even when the interface is already
enslaved as a member of VLAN.
- LAG members do not have IP addresses. Thus ifconfig command is
needed.
- Do not display comments when not necessary.
Signed-off-by: Shuotian Cheng <shuche@microsoft.com>
The reason is that /etc/network/interfaces file is in base image. After booting,
docker-swss is not ready and thus the empty VLAN interfaces cannot be created
when the brctl is pointing to the binary inside the swss docker.
Add the bridge-utils into the base image and add bridge_ports none to the
/etc/network/interfaces file so that after boot-up the empty VLAN interfaces
will be created to let the members to join later.
Signed-off-by: Shuotian Cheng <shuche@microsoft.com>
* [files]: Add allow-hotplug stanza to interfaces files
- start interface <interface_name> when the kernel detects
a hotplug event from the interface
ref: https://www.debian.org/doc/manuals/debian-reference/ch05.en.html
* [interfaces]: Combine vlan_interfaces and lag_interfaces file and add allow-hotplug
1. Remove vlan_interfaces and lag_interfaces file and members in teamd.j2
2. Add all interfaces to /etc/network/interfaces file
3. Add allow-hotplug stanza
4. Add up <command> to automatically add interfaces to VLAN and LAG
5. Add unique_name filter to minigraph.py to remove duplicate interface names
6. Add brctl to base image
7. Update sonic-swss submodule
Signed-off-by: Shuotian Cheng <shuche@microsoft.com>
- Add a functionality to get SNMP community from DHCP (option 224)
- Add a functionality to get minigraph from http service instead of using default minigraph
- The url for graph service is passed through DHCP option 225
- This feature is by default disabled. Modify rule/config to enable it on build time, or modify /etc/sonic/graph_service_url on run time.
- Fix a bug that getting hostname from DHCP is not working correctly
