[7.x] [DOCS] Adds Connecting section to Python book

Co-authored-by: István Zoltán Szabó <istvan.szabo@elastic.co>

docs/guide/connecting.asciidoc

@@ -0,0 +1,150 @@
+[[connecting]]
+== Connecting
+
+This page contains the information you need to connect and use the Client with 
+{es}.
+
+**On this page**
+
+* <<authentication>>
+* <<client-usage, Using the client>>
+
+[discrete]
+[[authentication]]
+=== Authentication
+
+This section contains code snippets to show you how to connect to various {es} 
+providers.
+
+
+[discrete]
+[[auth-ec]]
+==== Elastic Cloud
+
+Cloud ID is an easy way to configure your client to work with your Elastic Cloud 
+deployment. Combine the `cloud_id` with either `http_auth` or `api_key` to 
+authenticate with your Elastic Cloud deployment.
+
+Using `cloud_id` enables TLS verification and HTTP compression by default and 
+sets the port to 443 unless otherwise overwritten via the port parameter or the 
+port value encoded within `cloud_id`. Using Cloud ID also disables sniffing.
+
+[source,py]
+----------------------------
+from elasticsearch import Elasticsearch
+
+es = Elasticsearch(
+    cloud_id=”cluster-1:dXMa5Fx...”
+)
+----------------------------
+
+
+[discrete]
+[[auth-http]]
+==== HTTP Authentication
+
+HTTP authentication uses the `http_auth` parameter by passing in a username and 
+password within a tuple:
+
+[source,py]
+----------------------------
+from elasticsearch import Elasticsearch
+
+es = Elasticsearch(
+    http_auth=(“username”, “password”)
+)
+----------------------------
+
+
+[discrete]
+[[auth-apikey]]
+==== ApiKey authentication
+
+You can configure the client to use {es}'s API Key for connecting to your 
+cluster.
+
+[source,py]
+----------------------------
+from elasticsearch import Elasticsearch
+
+es = Elasticsearch(
+    api_key=(“api_key_id”, “api_key_secret”)
+)
+----------------------------
+
+
+[discrete]
+[[client-usage]]
+=== Usage
+
+This section is a brief overview of the client and its syntax.
+
+
+[discrete]
+==== Indexing a document
+  
+To index a document, you need to specify four pieces of information: `index`, 
+`id`, and a `body`:
+
+[source,py]
+----------------------------
+from datetime import datetime
+from elasticsearch import Elasticsearch
+es = Elasticsearch()
+
+doc = {
+    'author': 'author_name',
+    'text': 'Interensting content...',
+    'timestamp': datetime.now(),
+}
+res = es.index(index="test-index", id=1, body=doc)
+print(res['result'])
+----------------------------
+
+
+[discrete]
+==== Getting a document 
+
+To get a document, you need to specify its `index` and `id`:
+
+[source,py]
+----------------------------
+res = es.get(index="test-index", id=1)
+print(res['_source'])
+----------------------------
+
+
+[discrete]
+==== Refreshing an index
+
+You can perform the refresh operation on an index:
+
+[source,py]
+----------------------------
+es.indices.refresh(index="test-index")
+----------------------------
+
+
+[discrete]
+==== Searching for a document
+
+The `search()` method returns results that are matching a query:
+
+[source,py]
+----------------------------
+res = es.search(index="test-index", body={"query": {"match_all": {}}})
+print("Got %d Hits:" % res['hits']['total']['value'])
+for hit in res['hits']['hits']:
+    print("%(timestamp)s %(author)s: %(text)s" % hit["_source"])
+----------------------------
+
+
+[discrete]
+==== Deleting a document
+
+You can delete a document by specifying its `index`, and `id` in the `delete()` 
+method:
+
+----------------------------
+es.delete(index="test-index", id=1)
+----------------------------

docs/guide/index.asciidoc

@@ -7,3 +7,5 @@ include::{asciidoc-dir}/../../shared/attributes.asciidoc[]
 include::overview.asciidoc[]
 
 include::installation.asciidoc[]
+
+include::connecting.asciidoc[]