feat(common): add storageClass class/spawner (#578)

**Description**

Adds support for creating storageClasses on demand through common.
Allows us for easy inclusion of more dynamic pvc provisioners on SCALE
and other platforms

⚒️ Fixes  #559 

**⚙️ Type of change**

- [x] ⚙️ Feature/App addition
- [ ] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code

**🧪 How Has This Been Tested?**
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**📃 Notes:**
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**✔️ Checklist:**

- [ ] ⚖️ My code follows the style guidelines of this project
- [ ] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [ ] 📄 I have made corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [ ] ⬆️ I increased versions for any altered app according to semantic
versioning

**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [x] 🪞 I have opened a PR on
[truecharts/containers](https://github.com/truecharts/containers) adding
the container to TrueCharts mirror repo.
- [x] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

_Please don't blindly check all the boxes. Read them and only check
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---------

Co-authored-by: Stavros Kois <[email protected]>
Co-authored-by: Stavros kois <[email protected]>

library/common-test/Chart.yaml

@@ -3,7 +3,7 @@ appVersion: ""
 dependencies:
 - name: common
   repository: file://../common
-  version: ~14.3.0
+  version: ~14.4.0
 deprecated: false
 description: Helper chart to test different use cases of the common library
 home: https://github.com/truecharts/apps/tree/master/charts/library/common-test

library/common-test/ci/storageclass-values.yaml

@@ -0,0 +1,65 @@
+service:
+  main:
+    enabled: true
+    primary: true
+    ports:
+      main:
+        enabled: true
+        primary: true
+        protocol: http
+        port: 8080
+
+workload:
+  main:
+    enabled: true
+    primary: true
+    type: Deployment
+    podSpec:
+      containers:
+        main:
+          enabled: true
+          primary: true
+          args:
+            - --port
+            - "8080"
+          probes:
+            liveness:
+              enabled: true
+              type: http
+              port: "{{ .Values.service.main.ports.main.port }}"
+            readiness:
+              enabled: true
+              type: http
+              port: "{{ .Values.service.main.ports.main.port }}"
+            startup:
+              enabled: true
+              type: http
+              port: "{{ .Values.service.main.ports.main.port }}"
+
+# -- create storageClasses on demand
+storageClass:
+  example1:
+    enabled: true
+    provisioner: some.provisioner.io
+  example2:
+    enabled: true
+    provisioner: some.provisioner.io
+    reclaimPolicy: retain
+    allowVolumeExpansion: true
+    volumeBindingMode: Immediate
+  example3:
+    enabled: true
+    provisioner: some.provisioner.io
+    parameters: {}
+    mountOptions: []
+  example4:
+    enabled: true
+    provisioner: some.provisioner.io
+    parameters: {}
+    reclaimPolicy: retain
+    allowVolumeExpansion: true
+    volumeBindingMode: Immediate
+    mountOptions: []
+
+manifestManager:
+  enabled: false

library/common-test/tests/storageClass/metadata_test.yaml

@@ -0,0 +1,60 @@
+suite: storageClass metadata test
+templates:
+  - common.yaml
+chart:
+  appVersion: &appVer v9.9.9
+release:
+  name: test-release-name
+  namespace: test-release-namespace
+tests:
+  - it: should pass with storageClass created with labels and annotations
+    set:
+      label1: label1
+      label2: global_label2
+      annotation1: annotation1
+      annotation2: global_annotation2
+      global:
+        labels:
+          g_label1: global_label1
+          g_label2: "{{ .Values.label2 }}"
+        annotations:
+          g_annotation1: global_annotation1
+          g_annotation2: "{{ .Values.annotation2 }}"
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          labels:
+            label1: "{{ .Values.label1 }}"
+            label2: label2
+          annotations:
+            annotation1: "{{ .Values.annotation1 }}"
+            annotation2: annotation2
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        equal:
+          path: metadata.annotations
+          value:
+            annotation1: annotation1
+            annotation2: annotation2
+            g_annotation1: global_annotation1
+            g_annotation2: global_annotation2
+      - documentIndex: *storageClassDoc
+        equal:
+          path: metadata.labels
+          value:
+            app: common-test-1.0.0
+            release: test-release-name
+            helm-revision: "0"
+            helm.sh/chart: common-test-1.0.0
+            app.kubernetes.io/name: common-test
+            app.kubernetes.io/instance: test-release-name
+            app.kubernetes.io/managed-by: Helm
+            app.kubernetes.io/version: *appVer
+            g_label1: global_label1
+            g_label2: global_label2
+            label1: label1
+            label2: label2

library/common-test/tests/storageClass/names_test.yaml

@@ -0,0 +1,37 @@
+suite: storageClass name test
+templates:
+  - common.yaml
+release:
+  name: test-release-name
+  namespace: test-release-namespace
+tests:
+  - it: should generate correct name
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+        example2:
+          enabled: true
+          provisioner: some.provisioner.io
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        isAPIVersion:
+          of: storage.k8s.io/v1
+      - documentIndex: *storageClassDoc
+        equal:
+          path: metadata.name
+          value: test-release-name-common-test-example1
+      - documentIndex: &otherStorageClassDoc 1
+        isKind:
+          of: StorageClass
+      - documentIndex: *otherStorageClassDoc
+        isAPIVersion:
+          of: storage.k8s.io/v1
+      - documentIndex: *otherStorageClassDoc
+        equal:
+          path: metadata.name
+          value: test-release-name-common-test-example2

library/common-test/tests/storageClass/spec_test.yaml

@@ -0,0 +1,187 @@
+suite: storageClass name test
+templates:
+  - common.yaml
+release:
+  name: test-release-name
+  namespace: test-release-namespace
+tests:
+  - it: should generate correct spec with provisioner provided
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        isAPIVersion:
+          of: storage.k8s.io/v1
+      - documentIndex: *storageClassDoc
+        equal:
+          path: provisioner
+          value: some.provisioner.io
+      - documentIndex: *storageClassDoc
+        equal:
+          path: reclaimPolicy
+          value: Retain
+      - documentIndex: *storageClassDoc
+        equal:
+          path: allowVolumeExpansion
+          value: true
+      - documentIndex: *storageClassDoc
+        equal:
+          path: volumeBindingMode
+          value: Immediate
+
+  - it: should generate correct spec with non-default reclaim policy
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          reclaimPolicy: Delete
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        equal:
+          path: reclaimPolicy
+          value: Delete
+
+  - it: should generate correct spec with non-default allowVolumeExpansion
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          allowVolumeExpansion: false
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        equal:
+          path: allowVolumeExpansion
+          value: false
+
+  - it: should generate correct spec with parameters provided from tpl
+    set:
+      test:
+        key1: value1
+        key2: value2
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          parameters:
+            param1: "{{ .Values.test.key1 }}"
+            param2: "{{ .Values.test.key2 }}"
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        equal:
+          path: parameters
+          value:
+            param1: value1
+            param2: value2
+
+  - it: should generate correct spec with parameters provided
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          parameters:
+            param1: value1
+            param2: value2
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        equal:
+          path: parameters
+          value:
+            param1: value1
+            param2: value2
+
+  - it: should generate correct spec with mountOptions provided
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          mountOptions:
+            - option1
+            - option2=value2
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        equal:
+          path: mountOptions
+          value:
+            - option1
+            - option2=value2
+
+  - it: should generate correct spec with mountOptions provided from tpl
+    set:
+      test:
+        key1: option1
+        key2: value2
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          mountOptions:
+            - "{{ .Values.test.key1 }}"
+            - option2={{ .Values.test.key2 }}
+    asserts:
+      - documentIndex: &storageClassDoc 0
+        isKind:
+          of: StorageClass
+      - documentIndex: *storageClassDoc
+        equal:
+          path: mountOptions
+          value:
+            - option1
+            - option2=value2
+
+# Failures
+  - it: should fail without provisioner
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: ""
+    asserts:
+      - failedTemplate:
+          errorMessage: Storage Class - Expected non-empty [provisioner]
+
+  - it: should fail with invalid reclaimPolicy
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          reclaimPolicy: invalid
+    asserts:
+      - failedTemplate:
+          errorMessage: Storage Class - Expected [reclaimPolicy] to be one of [Retain, Delete], but got [invalid]
+
+  - it: should fail with invalid volumeBindingMode
+    set:
+      storageClass:
+        example1:
+          enabled: true
+          provisioner: some.provisioner.io
+          volumeBindingMode: invalid
+    asserts:
+      - failedTemplate:
+          errorMessage: Storage Class - Expected [volumeBindingMode] to be one of [WaitForFirstConsumer, Immediate], but got [invalid]

library/common/Chart.yaml

@@ -15,4 +15,4 @@ maintainers:
 name: common
 sources: null
 type: library
-version: 14.3.5
+version: 14.4.0