Create docker-base-buster and docker-config-engine-buster

[joyas-joseph]

- Why I did it
This change adds support to build dockers using buster as base.

- How I did it

1. Define docker-base-buster using docker-base-stretch as starting point
2. Define docker-config-engine-buster using docker-config-engine-stretch
   as starting point.

sonic-mgmt-framework docker is updated to build using buster as base

- How to verify it
During build:
Check that target/docker-base-buster.gz, target/docker-config-engine-buster.gz are being built
Check that the dependencies for sonic-mgmt-framework are being built in target/debs/buster directory

Runtime:

docker history docker-sonic-mgmt-framework:latest

admin@sonic:~$ 
admin@sonic:~$ sonic-cli 
sonic# show interface status 
------------------------------------------------------------------------------------------
Name                Description         Admin          Oper           Speed          MTU            
------------------------------------------------------------------------------------------
Ethernet0           -                   up             down           40GB           9100           
Ethernet4           -                   up             down           40GB           9100           
Ethernet8           -                   up             down           40GB           9100           
Ethernet12          -                   up             down           40GB           9100           
Ethernet16          -                   up             down           40GB           9100           
Ethernet20          -                   up             down           40GB           9100

- A picture of a cute animal (not mandatory but encouraged)

Signed-off-by: Joyas Joseph joyas_joseph@dell.com

[lguohan]

what kind of validation have you done since you have switch mgmt-framework to buster docker, have you validated if the mgmt-framework running successful in buster?

[lguohan]

btw, can you follow the pr template to fill answers for those questions.

[joyas-joseph]

what kind of validation have you done since you have switch mgmt-framework to buster docker, have you validated if the mgmt-framework running successful in buster?

I have loaded the image on an S6000 switch and verified that commands work. I have also verified that libjemalloc2 is the package installed in the docker.