gogadmin/VLAN_dockers: set up docker containers that use VLAN networks @ 0dabff43c2a3d4c199fd423853ddb600e1b206c8

larryc 5b65b843c1 first versin		%!s(int64=4) %!d(string=hai) anos
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20210604-wr1043-vlan-switchtar.gz	5b65b843c1 first versin	%!s(int64=4) %!d(string=hai) anos