add docs for k8s kubeconfig, defaultNamespace (#3803)

* add docs for k8s kubeconfig, defaultNamespace

Signed-off-by: Mukundan Sundararajan <65565396+mukundansundar@users.noreply.github.com>

* address review comments.

Signed-off-by: Mukundan Sundararajan <65565396+mukundansundar@users.noreply.github.com>

---------

Signed-off-by: Mukundan Sundararajan <65565396+mukundansundar@users.noreply.github.com>
Co-authored-by: Mark Fussell <markfussell@gmail.com>

Author: mukundansundar

daprdocs/content/en/reference/components-reference/supported-bindings/kubernetes-binding.md

@@ -36,6 +36,7 @@ spec:
 | `namespace` | Y | Input  | The Kubernetes namespace to read events from | `"default"` |
 | `resyncPeriodInSec` | N | Input | The period of time to refresh event list from Kubernetes API server. Defaults to `"10"` | `"15"`
 | `direction` | N | Input | The direction of the binding | `"input"`
+| `kubeconfigPath` | N | Input | The path to the kubeconfig file. If not specified, the binding uses the default in-cluster config value | `"/path/to/kubeconfig"`
 
 ## Binding support
 

daprdocs/content/en/reference/components-reference/supported-cryptography/kubernetes-secrets.md

@@ -33,7 +33,11 @@ The above example uses secrets as plain strings. It is recommended to use a secr
 
 ## Spec metadata fields
 
-For the Kubernetes secret store component, there are no metadata attributes.
+| Field              | Required |  Details | Example |
+|--------------------|:--------:|------------|-----|---------|
+| `defaultNamespace` | N | Default namespace to retrieve secrets from. If unset, the namespace must be specified for each key, as `namespace/secretName/key` | `"default-ns"` |
+| `kubeconfigPath` | N | The path to the kubeconfig file. If not specified, the component uses the default in-cluster config value | `"/path/to/kubeconfig"`
+
 
 ## Related links
 [Cryptography building block]({{< ref cryptography >}})

daprdocs/content/en/reference/components-reference/supported-secret-stores/kubernetes-secret-store.md

@@ -32,7 +32,12 @@ spec:
 ```
 
 ## Spec metadata fields
-For the Kubernetes secret store component, there are no metadata attributes.
+
+| Field              | Required |  Details | Example |
+|--------------------|:--------:|------------|-----|---------|
+| `defaultNamespace` | N | Default namespace to retrieve secrets from. If unset, the `namespace` must be specified in each request metadata or via environment variable `NAMESPACE` | `"default-ns"` |
+| `kubeconfigPath` | N | The path to the kubeconfig file. If not specified, the store uses the default in-cluster config value | `"/path/to/kubeconfig"`
+
 
 ## Optional per-request metadata properties