Private DNS

privateDNShow to find things in the caos

1 @iuriandreazza

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Base Structure• DNS Server

• Bind9 (*nix servers)

• Enviroment Separation

• dev.pense(imoveis|carros).com.br

• hlg.pense(imoveis|carros).com.br

• prd.pense(imoveis|carros).com.br

• It’s needed someone to maintain the resolution tables from the DNS Server

Applying• VM DNS Server

• Networking layout

• Need to change DNS Server with dev,testers and analysts machines

• Can test resolution names inside the network

• Fixed inside a network specific

• The project cannot be moved easily

DNS Server• It’s a dificult job to start and maintain

• Bind9 it’s great to work

• A little bit difficult to configure inside a network

• it’s needed to apply at root Domain Controllers

• Dificult inside an already deployed structure

• Need to configure root master and work as slave

DNS Server➜ bind tail -f named.conf zone "penseimoveis.com" { type master; file "/etc/bind/db.penseimoveis.com";

allow-transfers {slaves};};

zone "penseicarros.com" { type master; file “/etc/bind/db.pensecarros.com";

allow-transfers {slaves};};

➜ bind9 start

; penseimoveis.com.br$TTL 604800@ IN SOA ns1.penseimoveis.com.br. root.penseimoveis.com.br. ( 2006020201 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800); Negative Cache TTL;@ IN A 10.0.0.1www IN A 11.240.68.82dev IN A 127.0.0.1hlg IN A 11.243.4.72prd IN A 11.240.68.82

; pensecarros.com.br$TTL 604800@ IN SOA ns1.pensecarros.com.br. root.pensecarros.com.br. ( 2006020201 ; Serial 604800 ; Refresh 86400 ; Retry 2419200 ; Expire 604800); Negative Cache TTL;@ IN A 11.0.0.1www IN A 11.240.68.82dev IN A 127.0.0.1hlg IN A 11.243.4.72prd IN A 11.240.68.82

Dev-ops in operation!• There’s need to work with DNS Server?

• Deploy Cycle, all the server need to know the DNS Servers

• The project configuration can be re-deployable?

• It has structure dependency!

• If you need to change project from network you loose all the routes

• We need a change to allow the redistribution of the projects.

• Need to think more distributed…

Our Needs• Need to redistribute the server structure easily

• Context aware deployment project

• Git inspired

• Project

• https://github.com/iuriandreazza/hoster

• OpenSource

• Creator: @heliomedeiros

• Currently has: 3 forks, made with shell scripts and going to ruby to perform better

Our Needs

Why Hoster?

Our Needs

Hoster usage➜ brew install hosterInstall Hoster …➜ hoster git:(master) ✗ hosterusage: hoster [--help] [--version] <command> [<args>]

The most commonly used hoster commands are add Add a new HOST to current repository into a specific environment. edit Open the host file defined to be used. init Create an empty host repository in the current folder. list List all hosts for a specific project.

➜ hoster git:(master) ✗ hoster add 127.0.0.1 local.penseimoveis.com.br --local➜ hoster git:(master) ✗ hoster add 127.0.0.1 local.pensecarros.com.br --local➜ hoster git:(master) ✗ hoster add 127.0.0.1 local.m.pensecarros.com.br --local➜ hoster git:(master) ✗ hoster add 127.0.0.1 local.m.penseimoveis.com.br --local➜ hoster git:(master) ✗ hoster add 10.243.4.72 hlg.penseimoveis.com.br --hlg➜ hoster git:(master) ✗ hoster add 10.243.4.72 hlg.pensecarros.com.br --hlg➜ hoster git:(master) ✗ hoster add 10.240.68.82 prd.pensecarros.com.br --prd➜ hoster git:(master) ✗ hoster add 10.240.68.82 prd.penseimoveis.com.br --prd

➜ produto hoster list ################### lcl ################### 127.0.0.1 local.penseimoveis.com.br127.0.0.1 local.pensecarros.com.br127.0.0.1 local.m.pensecarros.com.br127.0.0.1 local.m.penseimoveis.com.br################### dev ###################

################### hlg ################### 10.243.4.72 hlg.penseimoveis.com.br10.240.68.82 hlg.pensecarros.com.br################### prod ################### 10.240.68.82 prd.pensecarros.com.br10.240.68.82 prd.penseimoveis.com.br➜ produto hoster apply --dev

privateDNShow to find things in the caos

14 @iuriandreazza

/iuri.andrea

zza