Docs: Change host_alias to host_aliases (#869)

* Bugfix: host_alias to host_aliases

Bugfix: host_alias to host_aliases

* Update pod and daemonset documentation to reflect host_aliases

Per #413 (comment)

Co-authored-by: Miguel David <[email protected]>

website/docs/r/daemonset.html.markdown

@@ -145,7 +145,7 @@ For more info see [Kubernetes reference](http://kubernetes.io/docs/user-guide/an
 * `init_container` - (Optional) List of init containers belonging to the pod. Init containers always run to completion and each must complete successfully before the next is started. For more info see [Kubernetes reference](https://kubernetes.io/docs/concepts/workloads/pods/init-containers)/
 * `dns_policy` - (Optional) Set DNS policy for containers within the pod. Valid values are 'ClusterFirstWithHostNet', 'ClusterFirst', 'Default' or 'None'. DNS parameters given in DNSConfig will be merged with the policy selected with DNSPolicy. To have DNS options set along with hostNetwork, you have to specify DNS policy explicitly to 'ClusterFirstWithHostNet'. Optional: Defaults to 'ClusterFirst', see [Kubernetes reference](https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pod-s-dns-policy).
 * `dns_config` - (Optional) Specifies the DNS parameters of a pod. Parameters specified here will be merged to the generated DNS configuration based on DNSPolicy. Defaults to empty. See `dns_config` block definition below.
-* `host_alias` - (Optional) List of hosts and IPs that will be injected into the pod's hosts file if specified. Optional: Defaults to empty. See `host_alias` block definition below.
+* `host_aliases` - (Optional) List of hosts and IPs that will be injected into the pod's hosts file if specified. Optional: Defaults to empty. See `host_aliases` block definition below.
 * `host_ipc` - (Optional) Use the host's ipc namespace. Optional: Defaults to false.
 * `host_network` - (Optional) Host networking requested for this pod. Use the host's network namespace. If this option is set, the ports that will be used must be specified.
 * `host_pid` - (Optional) Use the host's pid namespace.
@@ -467,11 +467,11 @@ The `option` block supports the following:
 * `path` - (Required) The Glusterfs volume path. For more info see http://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
 * `read_only` - (Optional) Whether to force the Glusterfs volume to be mounted with read-only permissions. Defaults to false. For more info see http://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
 
-### `host_alias`
+### `host_aliases`
 
 #### Arguments
 
-* `hostnames` - (Required) Hostnames for the IP address.
+* `hostnames` - (Required) Array of hostnames for the IP address.
 * `ip` - (Required) IP address of the host file entry.
 
 ### `host_path`

website/docs/r/deployment.html.markdown

@@ -475,7 +475,7 @@ The `option` block supports the following:
 
 #### Arguments
 
-* `hostnames` - (Required) Hostnames for the IP address.
+* `hostnames` - (Required) Array of hostnames for the IP address.
 * `ip` - (Required) IP address of the host file entry.
 
 ### `host_path`

website/docs/r/pod.html.markdown

@@ -204,7 +204,7 @@ For more info see [Kubernetes reference](http://kubernetes.io/docs/user-guide/la
 * `init_container` - (Optional) List of init containers belonging to the pod. Init containers always run to completion and each must complete successfully before the next is started. For more info see [Kubernetes reference](https://kubernetes.io/docs/concepts/workloads/pods/init-containers)/
 * `dns_policy` - (Optional) Set DNS policy for containers within the pod. Valid values are 'ClusterFirstWithHostNet', 'ClusterFirst', 'Default' or 'None'. DNS parameters given in DNSConfig will be merged with the policy selected with DNSPolicy. To have DNS options set along with hostNetwork, you have to specify DNS policy explicitly to 'ClusterFirstWithHostNet'. Optional: Defaults to 'ClusterFirst', see [Kubernetes reference](https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#pod-s-dns-policy).
 * `dns_config` - (Optional) Specifies the DNS parameters of a pod. Parameters specified here will be merged to the generated DNS configuration based on DNSPolicy. Defaults to empty. See `dns_config` block definition below.
-* `host_alias` - (Optional) List of hosts and IPs that will be injected into the pod's hosts file if specified. Optional: Defaults to empty. See `host_alias` block definition below.
+* `host_aliases` - (Optional) List of hosts and IPs that will be injected into the pod's hosts file if specified. Optional: Defaults to empty. See `host_aliases` block definition below.
 * `host_ipc` - (Optional) Use the host's ipc namespace. Optional: Defaults to false.
 * `host_network` - (Optional) Host networking requested for this pod. Use the host's network namespace. If this option is set, the ports that will be used must be specified.
 * `host_pid` - (Optional) Use the host's pid namespace.
@@ -525,11 +525,11 @@ The `option` block supports the following:
 * `path` - (Required) The Glusterfs volume path. For more info see http://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
 * `read_only` - (Optional) Whether to force the Glusterfs volume to be mounted with read-only permissions. Defaults to false. For more info see http://releases.k8s.io/HEAD/examples/volumes/glusterfs/README.md#create-a-pod
 
-### `host_alias`
+### `host_aliases`
 
 #### Arguments
 
-* `hostnames` - (Required) Hostnames for the IP address.
+* `hostnames` - (Required) Array of hostnames for the IP address.
 * `ip` - (Required) IP address of the host file entry.
 
 ### `host_path`