Automatic bootstrapping for consul cluster of multiple servers with the bootstrap_expect value greater than one

CHANGELOG.md

@@ -1,3 +1,6 @@
+# 0.4.4
+* Adds server list to a consul instance running as a cluster with a `bootstrap_expect` value greater than one.
+
 # 0.4.3
 * Fix race condition when installing Consul as a runit service
 * Documentation fixes

recipes/_service.rb

@@ -75,6 +75,7 @@
   service_config['server'] = true
   if num_cluster > 1
     service_config['bootstrap_expect'] = num_cluster
+    service_config['start_join'] = node['consul']['servers']
   else
     service_config['bootstrap'] = true
   end

spec/unit/recipes/_service_spec.rb

@@ -67,4 +67,38 @@
       expect(chef_run).to start_runit_service('consul')
     end
   end
+
+  context 'with a cluster service_mode, bootstrap_expect > 1, and a server list to join' do
+    let(:chef_run) do
+      ChefSpec::Runner.new(node_attributes) do |node|
+        node.set['consul']['service_mode'] = 'cluster'
+        node.set['consul']['bootstrap_expect'] = '3'
+        node.set['consul']['servers'] = [ 'server1', 'server2', 'server3' ]
+      end.converge(described_recipe)
+    end
+    it do
+      expect(chef_run).to create_file('/etc/consul.d/default.json')
+        .with_content(/start_join/)
+        .with_content(/server1/)
+        .with_content(/server2/)
+        .with_content(/server3/)
+    end
+  end
+
+  context 'with a cluster service_mode, bootstrap_expect = 1, and a server list' do
+    let(:chef_run) do
+      ChefSpec::Runner.new(node_attributes) do |node|
+        node.set['consul']['service_mode'] = 'cluster'
+        node.set['consul']['bootstrap_expect'] = '1'
+        node.set['consul']['servers'] = [ 'server1', 'server2', 'server3' ]
+      end.converge(described_recipe)
+    end
+    it do
+      expect(chef_run).to_not create_file('/etc/consul.d/default.json')
+        .with_content(/start_join/)
+        .with_content(/server1/)
+        .with_content(/server2/)
+        .with_content(/server3/)
+    end
+  end
 end