add docs for image(Selector)

library/common/1.0.0/values.yaml

@@ -2,6 +2,16 @@
 # All values can be overridden per chart, in their values.yaml
 # For Examples and Explanation view the "Values.yaml Explained" markdown file
 
+image:
+  repository: repo
+  tag: tag
+  pullPolicy: IfNotPresent
+
+imageSelector: ""
+
+
+# Everything bellow needs documentation
+
 global:
   nameOverride: ""
   fullnameOverride: ""
@@ -21,16 +31,6 @@ ixExternalInterfacesConfigurationNames: []
   # - interface1
   # - interface2
 
-# TODO: docs
-image:
-  # -- Image repository
-  repository: repo
-  # -- Image tag
-  tag: tag
-  # -- Image pull policy
-  pullPolicy: IfNotPresent
-
-imageSelector: ""
 
 command: []
 

library/common/_docs/values/image.md

@@ -0,0 +1,56 @@
+# Image
+
+## Key: image
+
+- Type: `dict`
+- Default:
+
+  ```yaml
+  image:
+    repository: repo
+    tag: tag
+    pullPolicy: IfNotPresent
+  ```
+
+- Helm Template: ❌
+
+`image` key contains info regarding the container image that will be used
+
+Example:
+
+```yaml
+image:
+  repository: nginx
+  tag: 1.16
+  pullPolicy: IfNotPresents
+```
+
+## Key: imageSelector
+
+- Type: `string`
+- Default: `""`
+- Helm Template: ❌
+
+`imageSelector` key is used for apps/charts that have multiple image variations.
+Example, an app that has different image for CPU and GPU workloads.
+
+This key should contain an name of a `dict` constructed similar to `image`.
+If defined `image` is ignored and the defined `dict` is used.
+
+In the below example the gpu image will be used when `imageSelector` is defined,
+otherwise it will default to the `image`, which is the cpu image.
+Example:
+
+```yaml
+image:
+  repository: app/repository
+  tag: cpu-v1
+  pullPolicy: IfNotPresents
+
+gpuImage:
+  repository: app/repository
+  tag: gpu-v1
+  pullPolicy: IfNotPresents
+
+imageSelector: gpuImage
+```