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[sonic-py-common] Add function to get hostname (#5265)

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Added a function to get hostname. It get it from DEVICE_METADATA|localhost: hostname.
This commit is contained in:
Renuka Manavalan 2020-08-28 13:47:44 -07:00 committed by GitHub
parent 4338d8293f
commit 5a166cc60c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 22 additions and 23 deletions
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45
src/sonic-py-common/sonic_py_common/device_info.py
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@ -29,6 +29,25 @@ FRONTEND_ASIC_SUB_ROLE = "FrontEnd"
BACKEND_ASIC_SUB_ROLE = "BackEnd" BACKEND_ASIC_SUB_ROLE = "BackEnd"
def get_localhost_info(field):
try:
config_db = ConfigDBConnector()
config_db.connect()
metadata = config_db.get_table('DEVICE_METADATA')
if 'localhost' in metadata and field in metadata['localhost']:
return metadata['localhost'][field]
except Exception:
pass
return None
def get_hostname():
return get_localhost_info('hostname')
def get_machine_info(): def get_machine_info():
""" """
Retreives data from the machine configuration file Retreives data from the machine configuration file
@ -80,18 +99,8 @@ def get_platform():
# container in SONiC, where the /host directory is not mounted. In this # container in SONiC, where the /host directory is not mounted. In this
# case the value should already be populated in Config DB so we finally # case the value should already be populated in Config DB so we finally
# try reading it from there. # try reading it from there.
try:
config_db = ConfigDBConnector() return get_localhost_info('platform')
config_db.connect()
metadata = config_db.get_table('DEVICE_METADATA')
if 'localhost' in metadata and 'platform' in metadata['localhost']:
return metadata['localhost']['platform']
except Exception:
pass
return None
def get_hwsku(): def get_hwsku():
@ -101,18 +110,8 @@ def get_hwsku():
Returns: Returns:
A string containing the device's hardware SKU identifier A string containing the device's hardware SKU identifier
""" """
try:
config_db = ConfigDBConnector()
config_db.connect()
metadata = config_db.get_table('DEVICE_METADATA') return get_localhost_info('hwsku')
if 'localhost' in metadata and 'hwsku' in metadata['localhost']:
return metadata['localhost']['hwsku']
except Exception:
pass
return None
def get_platform_and_hwsku(): def get_platform_and_hwsku():