Add php:8.0 kind (#5071)

Also, set example PHP runtime to v7.4.

Author: akrabat

ansible/files/runtimes.json

@@ -175,6 +175,20 @@
                     "attachmentName": "codefile",
                     "attachmentType": "text/plain"
                 }
+            },
+            {
+                "kind": "php:8.0",
+                "default": false,
+                "deprecated": false,
+                "image": {
+                    "prefix": "openwhisk",
+                    "name": "action-php-v8.0",
+                    "tag": "nightly"
+                },
+                "attached": {
+                    "attachmentName": "codefile",
+                    "attachmentType": "text/plain"
+                }
             }
         ],
         "ruby": [

core/controller/src/main/resources/apiv1swagger.json

@@ -2002,6 +2002,7 @@
             "nodejs:default",
             "php:7.3",
             "php:7.4",
+            "php:8.0",
             "php:default",
             "python:3",
             "python:default",

docs/actions-docker.md

@@ -65,7 +65,7 @@ Here are some of the more common runtime images...
 - `openwhisk/python3action` - [Python 3](https://hub.docker.com/r/openwhisk/python3action) ([Source](https://github.com/apache/openwhisk-runtime-python/blob/master/core/pythonAction/Dockerfile))
 - `openwhisk/java8action` - [Java 8](https://hub.docker.com/r/openwhisk/java8action) ([Source](https://github.com/apache/openwhisk-runtime-java/blob/master/core/java8/Dockerfile))
 - `openwhisk/action-swift-v4.2` - [Swift 4.2](https://hub.docker.com/r/openwhisk/action-swift-v4.2) ([Source](https://github.com/apache/openwhisk-runtime-swift/blob/master/core/swift42Action/Dockerfile))
-- `openwhisk/action-php-v7.3` - [PHP 7.3](https://hub.docker.com/r/openwhisk/action-php-v7.3) ([Source](https://github.com/apache/openwhisk-runtime-php/blob/master/core/php7.3Action/Dockerfile))
+- `openwhisk/action-php-v7.4` - [PHP 7.4](https://hub.docker.com/r/openwhisk/action-php-v7.4) ([Source](https://github.com/apache/openwhisk-runtime-php/blob/master/core/php7.4Action/Dockerfile))
 - `openwhisk/action-ruby-v2.5` - [Ruby 2.5](https://hub.docker.com/r/openwhisk/action-ruby-v2.5) ([Source](https://github.com/apache/openwhisk-runtime-ruby/blob/master/core/ruby2.5Action/Dockerfile))
 
 ## Extending Existing Runtimes

docs/actions-php.md

@@ -23,12 +23,13 @@ The process of creating PHP actions is similar to that of [other actions](action
 The following sections guide you through creating and invoking a single PHP action,
 and demonstrate how to bundle multiple PHP files and third party dependencies.
 
-PHP actions are executed using PHP 7.4 or 7.3. The specific
+PHP actions are executed using PHP 8.0, 7.4 or 7.3. The specific
 version of PHP is listed in the CHANGELOG files in the [PHP runtime repository](https://github.com/apache/openwhisk-runtime-php).
 
 To use a PHP runtime, specify the `wsk` CLI parameter `--kind` when creating or
 updating an action. The available PHP kinds are:
 
+* PHP 8.0: `--kind php:8.0`
 * PHP 7.4: `--kind php:7.4`
 * PHP 7.3: `--kind php:7.3`