Feature | Server Type

[mrpalide]

Fixes #30

Changes:

• add --auth flag to dmsg-discovery and dmsg-server, as simple authentication for recognize official dmsg servers
• add --official-servers flag as list of official dmsg-servers separated by comma ,
• add serverType field to *disc.Entry as type of dmsg server

How to test this PR:

• run redis-server in default 6379 port

• build on this PR's branch make build

• run dmsg-discovery with --auth flag as ./bin/dmsg-discovery -t --auth 123

• run a test dmsg-server with --auth flag and another without that flag as
  ./bin/dmsg-server start ./integration/configs/dmsgserver1.json --auth 123
./bin/dmsg-server start ./integration/configs/dmsgserver2.json

• check dmsg discovery's all server endpoint in http://localhost:9090/dmsg-discovery/all_servers

• should be something like this:
  

• run a test dmsg-server with --official-servers flag as ./bin/dmsg-discovery -t --official-servers 0297347088626e5d6468bc0ed258f2a5e7a279fae48b3636275220611c2eb01321

• run dmsg-servers without any flag as
  ./bin/dmsg-server start ./integration/configs/dmsgserver1.json
./bin/dmsg-server start ./integration/configs/dmsgserver2.json

• check dmsg discovery's all server endpoint again

• should be something like this
  

Note:
Old version of dmsg servers still available to register, but their type will set as community

[0pcom]

please create a file which contains the dmsg servers to be whitelisted and include it.

[mrpalide]

please create a file which contains the dmsg servers to be whitelisted and include it.

No file, just simple string
./dmsg-discovery --official-servers pk1,pk2,pk3,...

[0pcom]

looks good