Sorting the information generated by sonic-cfggen for all j2 templates.

[rodnymolina]

With this patch all the content of the files generated by "sonic-cfggen -d -t" instructions will now be sorted, which is very useful for operational and troubleshooting purposes. See below a few examples of this behavior. Also, a few sonic-cfggen UT's have been modified to accommodate the new sorted configurations, and thereby, allowing the building process to successfully complete.

admin@lnos-x1-a-asw02:~$ sonic-cfggen -d -t /usr/share/sonic/templates/interfaces.j2 | more
…
auto lo
iface lo inet loopback
iface lo inet static
  address 10.10.1.2
  netmask 255.255.255.255
auto eth0
iface eth0 inet dhcp
allow-hotplug Ethernet112
iface Ethernet112 inet static
   mtu 9100
   address 10.1.2.2
   netmask 255.255.255.0
allow-hotplug Ethernet112
iface Ethernet112 inet6 static
  mtu 9100
  address fc00:1:2::2
  netmask 64
allow-hotplug Ethernet116
iface Ethernet116 inet static
   mtu 9100
   address 10.2.2.2
   netmask 255.255.255.0
allow-hotplug Ethernet116
iface Ethernet116 inet6 static
  mtu 9100
  address fc00:2:2::2
  netmask 64
allow-hotplug Ethernet120
iface Ethernet120 inet static
  mtu 9100
  address 10.3.2.2
  netmask 255.255.255.0


root@lnos-x1-a-csw01:/# sonic-cfggen -d -y /etc/sonic/deployment_id_asn_map.yml -t /usr/share/sonic/templates/bgpd.conf.j2
…
router bgp 65100
…
  network 10.10.2.1/32
  neighbor 10.0.0.1 remote-as 65200
  neighbor 10.0.0.1 description ARISTA01T2
  address-family ipv4
    neighbor 10.0.0.1 activate
    maximum-paths 64
  exit-address-family
  neighbor 10.0.0.11 remote-as 65200
  neighbor 10.0.0.11 description ARISTA06T2
  address-family ipv4
    neighbor 10.0.0.11 activate
    maximum-paths 64
  exit-address-family
  neighbor 10.0.0.13 remote-as 65200
  neighbor 10.0.0.13 description ARISTA07T2
  address-family ipv4
    neighbor 10.0.0.13 activate
    maximum-paths 64
  exit-address-family
  neighbor 10.0.0.15 remote-as 65200
  neighbor 10.0.0.15 description ARISTA08T2
  address-family ipv4
    neighbor 10.0.0.15 activate
    maximum-paths 64
  exit-address-family


root@lnos-x1-a-asw02:/# sonic-cfggen -d -t /usr/share/sonic/templates/lldpd.conf.j2
…
configure ports Ethernet4 lldp portidsubtype local Eth2/1 description ixia-card2-port8:Eth1/2/8
configure ports Ethernet112 lldp portidsubtype local Eth29/1 description lnos-x1-a-csw01:Eth29/1
configure ports Ethernet116 lldp portidsubtype local Eth30/1 description lnos-x1-a-csw02:Eth30/1
configure ports Ethernet120 lldp portidsubtype local Eth31/1 description lnos-x1-a-csw03:Eth31/1
configure ports Ethernet124 lldp portidsubtype local Eth32/1 description lnos-x1-a-csw04:Eth32/1


root@lnos-x1-a-asw02:/# sonic-cfggen -d -t /usr/share/sonic/templates/ports.json.j2 | more
[
    {
            "PORT_TABLE:Ethernet0": {
                        "speed": "10000",
                        "description": ""
    },
        "OP": "SET"
    },
    {
            "PORT_TABLE:Ethernet1": {
                        "speed": "10000",
                        "description": ""
    },
        "OP": "SET"
    },
    {
            "PORT_TABLE:Ethernet2": {
                        "speed": "10000",
                        "description": ""
    },
        "OP": "SET"
    },
]