(feat) Add Promtail and Netshoot addons (#1058)

* add promtail addon

* Add Netshoot addon

* update common to include envList for addons

* Add basic promtail and netshoot unittests

tests/library/common/addon_netshoot_spec.rb

@@ -0,0 +1,35 @@
+# frozen_string_literal: true
+require_relative '../../test_helper'
+
+class Test < ChartTest
+  @@chart = Chart.new('charts/library/common-test')
+
+  describe @@chart.name do
+    describe 'addon::netshoot' do
+      it 'defaults to disabled' do
+        deployment = chart.resources(kind: "Deployment").first
+        containers = deployment["spec"]["template"]["spec"]["containers"]
+        netshootContainer = containers.find{ |c| c["name"] == "netshoot" }
+
+        assert_nil(netshootContainer)
+      end
+
+      it 'netshoot can be enabled' do
+        values = {
+        addons: {
+          netshoot: {
+            enabled: true
+          }
+        }
+      }
+
+        chart.value values
+        deployment = chart.resources(kind: "Deployment").first
+        containers = deployment["spec"]["template"]["spec"]["containers"]
+        netshootContainer = containers.find{ |c| c["name"] == "netshoot" }
+
+        refute_nil(netshootContainer)
+      end
+    end
+  end
+end

tests/library/common/addon_promtail_spec.rb

@@ -0,0 +1,42 @@
+# frozen_string_literal: true
+require_relative '../../test_helper'
+
+class Test < ChartTest
+  @@chart = Chart.new('charts/library/common-test')
+
+  describe @@chart.name do
+    describe 'addon::promtail' do
+      it 'defaults to disabled' do
+        deployment = chart.resources(kind: "Deployment").first
+        containers = deployment["spec"]["template"]["spec"]["containers"]
+        promtailContainer = containers.find{ |c| c["name"] == "promtail" }
+
+        assert_nil(promtailContainer)
+      end
+
+      it 'promtail can be enabled' do
+        values = {
+        addons: {
+          promtail: {
+            enabled: true,
+            volumeMounts: [
+              {
+              name: "config",
+              mountPath: "/tmp",
+              readOnly: true
+          }
+        ]
+          }
+        }
+      }
+
+        chart.value values
+        deployment = chart.resources(kind: "Deployment").first
+        containers = deployment["spec"]["template"]["spec"]["containers"]
+        promtailContainer = containers.find{ |c| c["name"] == "promtail" }
+
+        refute_nil(promtailContainer)
+      end
+    end
+  end
+end