From 687a6f097d14c2de27d904908a7ba5a41e31c774 Mon Sep 17 00:00:00 2001
From: Sebastian Kippe <sebastian@kip.pe>
Date: Tue, 18 Jan 2022 11:16:44 -0600
Subject: [PATCH] Write hostname-related configs for new ejabberd cluster

---
 site-cookbooks/kosmos-ejabberd/metadata.rb     |  1 +
 .../kosmos-ejabberd/recipes/default.rb         | 18 ++++++++++++------
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/site-cookbooks/kosmos-ejabberd/metadata.rb b/site-cookbooks/kosmos-ejabberd/metadata.rb
index 0131259..a47ac07 100644
--- a/site-cookbooks/kosmos-ejabberd/metadata.rb
+++ b/site-cookbooks/kosmos-ejabberd/metadata.rb
@@ -26,3 +26,4 @@ depends "kosmos_postgresql"
 depends "backup"
 depends "firewall"
 depends "tor-full"
+depends "hostsfile"
diff --git a/site-cookbooks/kosmos-ejabberd/recipes/default.rb b/site-cookbooks/kosmos-ejabberd/recipes/default.rb
index 0c69d95..92222d6 100644
--- a/site-cookbooks/kosmos-ejabberd/recipes/default.rb
+++ b/site-cookbooks/kosmos-ejabberd/recipes/default.rb
@@ -29,15 +29,21 @@ file "/opt/ejabberd/.erlang.cookie" do
   content ejabberd_credentials['erlang_cookie']
 end
 
+ejabberd_nodes = search(:node, "role:ejabberd")
+
+ejabberd_nodes.each do |node|
+  hostsfile_entry node["knife_zero"]["host"] do
+    hostname node["name"]
+    action :create
+  end
+end
+
+ejabberd_hostnames = ejabberd_nodes.map { |n| n["name"] }
 file "/opt/ejabberd/.hosts.erlang" do
   mode "0644"
   owner "ejabberd"
   group "ejabberd"
-  content <<-EOF
-"andromeda.kosmos.org".
-"centaurus.kosmos.org".
-"draco.kosmos.org".
-  EOF
+  content ejabberd_hostnames.join(".\n")
 end
 
 ruby_block "configure ERLANG_NODE" do
@@ -45,7 +51,7 @@ ruby_block "configure ERLANG_NODE" do
     file = Chef::Util::FileEdit.new("/opt/ejabberd/conf/ejabberdctl.cfg")
     file.search_file_replace_line(
       %r{#ERLANG_NODE=ejabberd@localhost},
-      "ERLANG_NODE=#{node['kosmos-ejabberd']['erlang_node']}"
+      "ERLANG_NODE=ejabberd@#{node['name']}"
     )
     file.write_file
   end