Doc fragments to plugins (#50172)

* promote doc_fragments into actual plugins

  change tests hardcoded path to doc fragments
  avoid sanity in fragments
  avoid improper testing of doc_fragments
  also change runner paths
 fix botmeta
 updated comment for fragments
 updated docs

lib/ansible/plugins/doc_fragments/docker.py

@@ -0,0 +1,104 @@
+# -*- coding: utf-8 -*-
+
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
+
+
+class ModuleDocFragment(object):
+
+    # Docker doc fragment
+    DOCUMENTATION = r'''
+
+options:
+    docker_host:
+        description:
+            - The URL or Unix socket path used to connect to the Docker API. To connect to a remote host, provide the
+              TCP connection string. For example, C(tcp://192.0.2.23:2376). If TLS is used to encrypt the connection,
+              the module will automatically replace C(tcp) in the connection URL with C(https).
+            - If the value is not specified in the task, the value of environment variable C(DOCKER_HOST) will be used
+              instead. If the environment variable is not set, the default value will be used.
+        type: str
+        default: unix://var/run/docker.sock
+        aliases: [ docker_url ]
+    tls_hostname:
+        description:
+            - When verifying the authenticity of the Docker Host server, provide the expected name of the server.
+            - If the value is not specified in the task, the value of environment variable C(DOCKER_TLS_HOSTNAME) will
+              be used instead. If the environment variable is not set, the default value will be used.
+        type: str
+        default: localhost
+    api_version:
+        description:
+            - The version of the Docker API running on the Docker Host.
+            - Defaults to the latest version of the API supported by docker-py.
+            - If the value is not specified in the task, the value of environment variable C(DOCKER_API_VERSION) will be
+              used instead. If the environment variable is not set, the default value will be used.
+        type: str
+        default: auto
+        aliases: [ docker_api_version ]
+    timeout:
+        description:
+            - The maximum amount of time in seconds to wait on a response from the API.
+            - If the value is not specified in the task, the value of environment variable C(DOCKER_TIMEOUT) will be used
+              instead. If the environment variable is not set, the default value will be used.
+        type: int
+        default: 60
+    cacert_path:
+        description:
+            - Use a CA certificate when performing server verification by providing the path to a CA certificate file.
+            - If the value is not specified in the task and the environment variable C(DOCKER_CERT_PATH) is set,
+              the file C(ca.pem) from the directory specified in the environment variable C(DOCKER_CERT_PATH) will be used.
+        type: str
+        aliases: [ tls_ca_cert ]
+    cert_path:
+        description:
+            - Path to the client's TLS certificate file.
+            - If the value is not specified in the task and the environment variable C(DOCKER_CERT_PATH) is set,
+              the file C(cert.pem) from the directory specified in the environment variable C(DOCKER_CERT_PATH) will be used.
+        type: str
+        aliases: [ tls_client_cert ]
+    key_path:
+        description:
+            - Path to the client's TLS key file.
+            - If the value is not specified in the task and the environment variable C(DOCKER_CERT_PATH) is set,
+              the file C(key.pem) from the directory specified in the environment variable C(DOCKER_CERT_PATH) will be used.
+        type: str
+        aliases: [ tls_client_key ]
+    ssl_version:
+        description:
+            - Provide a valid SSL version number. Default value determined by ssl.py module.
+            - If the value is not specified in the task, the value of environment variable C(DOCKER_SSL_VERSION) will be
+              used instead.
+        type: str
+    tls:
+        description:
+            -  Secure the connection to the API by using TLS without verifying the authenticity of the Docker host
+               server.
+            - If the value is not specified in the task, the value of environment variable C(DOCKER_TLS) will be used
+              instead. If the environment variable is not set, the default value will be used.
+        type: bool
+        default: false
+    tls_verify:
+        description:
+            - Secure the connection to the API by using TLS and verifying the authenticity of the Docker host server.
+            - If the value is not specified in the task, the value of environment variable C(DOCKER_TLS_VERIFY) will be
+              used instead. If the environment variable is not set, the default value will be used.
+        type: bool
+        default: false
+    debug:
+        description:
+            - Debug mode
+        type: bool
+        default: false
+
+notes:
+    - Connect to the Docker daemon by providing parameters with each task or by defining environment variables.
+      You can define C(DOCKER_HOST), C(DOCKER_TLS_HOSTNAME), C(DOCKER_API_VERSION), C(DOCKER_CERT_PATH), C(DOCKER_SSL_VERSION),
+      C(DOCKER_TLS), C(DOCKER_TLS_VERIFY) and C(DOCKER_TIMEOUT). If you are using docker machine, run the script shipped
+      with the product that sets up the environment. It will set these variables for you. See
+      U(https://docker-py.readthedocs.io/en/stable/machine/) for more details.
+    - When connecting to Docker daemon with TLS, you might need to install additional Python packages.
+      For the Docker SDK for Python, version 2.4 or newer, this can be done by installing C(docker[tls]) with M(pip).
+    - Note that the Docker SDK for Python only allows to specify the path to the Docker configuration for very few functions.
+      In general, it will use C($HOME/docker/config.json) if the C(DOCKER_CONFIG) environment variable is not specified,
+      and use C($DOCKER_CONFIG/config.json) otherwise.
+'''