[cfg engine] Add support of platform.json parsing to portconfig.py file

[samaity]

Signed-off-by: Sangita Maity sangitamaity0211@gmail.com

- What I did
Add support of platform.json parsing to portconfig.py file which is being used by sonic-cfggen and minigraph.py file under src/sonic-config-engine folder to get port config via get_port_config function.

- How I did it

1. portconfig.py file will first check whether the platform.json file is there or not. if not then whether port_config.ini file is there or not. Modified get_port_config_file_name for this purpose.
2. Added a separate function i.e. parse_platform_json_file in portconfig.py file.

- How to verify it

rebuilt "sonic_config_engine-1.0" wheel package with all the test cases.All the below-mentioned test cases passed.

# Check whether all interfaces present or not as per platform.json
def test_platform_json_interfaces_keys(self):
       
# Check specific Interface with it's proper configuration as per platform.json
def test_platform_json_specific_ethernet_interfaces(self):

# Check all Interface with it's proper configuration as per platform.json
def test_platform_json_all_ethernet_interfaces(self):

log file

samaity@50c03d616603:/sonic$ BLDENV=stretch make -f slave.mk target/python-wheels/sonic_config_engine-1.0-py2-none-any.whl
SONiC Build System

Build Configuration
"CONFIGURED_PLATFORM"             : "vs"
"CONFIGURED_ARCH"                 : "amd64"
"SONIC_CONFIG_PRINT_DEPENDENCIES" : ""
"SONIC_BUILD_JOBS"                : "1"
"SONIC_CONFIG_MAKE_JOBS"          : "24"
"SONIC_USE_DOCKER_BUILDKIT"       : ""
"USERNAME"                        : "admin"
"PASSWORD"                        : "admin123"
"ENABLE_DHCP_GRAPH_SERVICE"       : ""
"SHUTDOWN_BGP_ON_START"           : ""
"ENABLE_PFCWD_ON_START"           : ""
"INSTALL_DEBUG_TOOLS"             : ""
"ROUTING_STACK"                   : "frr"
"FRR_USER_UID"                    : "300"
"FRR_USER_GID"                    : "300"
"ENABLE_SYNCD_RPC"                : ""
"ENABLE_ORGANIZATION_EXTENSIONS"  : "y"
"HTTP_PROXY"                      : ""
"HTTPS_PROXY"                     : ""
"ENABLE_SYSTEM_TELEMETRY"         : "y"
"SONIC_DEBUGGING_ON"              : ""
"SONIC_PROFILING_ON"              : ""
"KERNEL_PROCURE_METHOD"           : "build"
"BUILD_TIMESTAMP"                 : ""
"BLDENV"                          : "stretch"
"VS_PREPARE_MEM"                  : "yes"
"ENABLE_SFLOW"                    : "y"

samaity@server09:~/REPO_FACTORY/GIT_REPO/DPB/sonic-buildimage$ ls -la     target/python-wheels/sonic_config_engine-1.0-py2-none-any.whl
-rw-r--r-- 1 samaity samaity 44514 Dec  2 19:05 target/python-wheels/sonic_config_engine-1.0-py2-none-any.whl

[zhenggen-xu]

Do you have the test results for all vs tests? We should make the platform.json available to the vs docker, and see if the logic works for all existing test cases. We also should add additional test cases for the new logic.

[samaity]

Do you have the test results for all vs tests? We should make the platform.json available to the vs docker, and see if the logic works for all existing test cases. We also should add additional test cases for the new logic.

added additional test cases in sonic-cfg-engine test folder. These tests will be done during built.

[vasant17]

👍