Use new postgres client role and config

Fixes btcpay having still used the old postgres master, and integrating
it into the global client config setup from here on out.

nodes/bitcoin-2.json

@@ -12,7 +12,8 @@
     "hostname": "bitcoin-2",
     "ipaddress": "192.168.122.148",
     "roles": [
-      "btcpay"
+      "btcpay",
+      "postgresql_client"
     ],
     "recipes": [
       "kosmos-base",
@@ -21,6 +22,7 @@
       "kosmos-bitcoin::c-lightning",
       "kosmos-bitcoin::lnd",
       "kosmos-bitcoin::rtl",
+      "kosmos-postgresql::hostsfile",
       "kosmos-bitcoin::dotnet",
       "kosmos-bitcoin::nbxplorer",
       "kosmos-bitcoin::btcpay",

roles/btcpay.rb

@@ -1,6 +1,7 @@
 name "btcpay"
 
 run_list %w(
+  role[postgresql_client]
   kosmos-bitcoin::dotnet
   kosmos-bitcoin::nbxplorer
   kosmos-bitcoin::btcpay

site-cookbooks/kosmos-bitcoin/recipes/btcpay.rb

@@ -51,7 +51,7 @@ template node['btcpay']['config_path'] do
             nbxplorer_url: "http://127.0.0.1:#{node['nbxplorer']['port']}",
             btcpay_port: node['btcpay']['port'],
             btcpay_log_path: node['btcpay']['log_path'],
-            postgres_host: "192.168.122.1",
+            postgres_host: "pg.kosmos.local",
             postgres_port: node['btcpay']['postgres']['port'],
             postgres_database: node['btcpay']['postgres']['database'],
             postgres_user: node['btcpay']['postgres']['user'],