(DOCSP-6233): Adding limitation for azure/gpc peering (#236)

* (DOCSP-6233): Adding limitation for azure/gpc peering

* updates per Andrew's feedback

Author: jeff-allen-mongo

conf.py

@@ -63,7 +63,8 @@
     '.. |tls-ssl| replace:: :abbr:`TLS (Transport Layer Security)`/:abbr:`SSL (Secure Sockets Layer)`',
     '.. |service| replace:: Atlas',
     '.. |enc-channel| replace:: :ref:`encoding channel <encoding-channels>`',
-    '.. |aws| replace:: :abbr:`AWS (Amazon Web Services)`'
+    '.. |aws| replace:: :abbr:`AWS (Amazon Web Services)`',
+    '.. |gcp| replace:: :abbr:`GCP (Google Cloud Platform)`'
 ]
 
 rst_epilog.extend(get_replacements(conf))
@@ -76,7 +77,8 @@
     'manual': ('http://docs.mongodb.org/manual%s', ''),
     'v0.10': ('https://docs.mongodb.com/charts/v0.10%s', ''),
     'atlas': ('https://docs.atlas.mongodb.com%s', ''),
-    'stitch': ('https://docs.mongodb.com/stitch%s', '')
+    'stitch': ('https://docs.mongodb.com/stitch%s', ''),
+    'onprem': ('https://docs.mongodb.com/charts/onprem%s', '')
 }
 
 source_constants = {

source/launch-charts.txt

@@ -30,7 +30,11 @@ You will also need an |service| cluster to visualize data using
 |charts-short|. The steps on this page guide you through creating an
 |service| cluster.
 
-.. important::
+If your |service| cluster is backed by |gcp| or Azure, the cluster
+must not have :atlas:`network peering </security-vpc-peering>` enabled.
+For more information, see :ref:`limited-peering-support`.
+
+.. note::
 
    Each instance of the |charts| application is tied to a single
    |service| :atlas:`project </tutorial/manage-projects/>`,
@@ -54,6 +58,28 @@ on configuring additional users and roles, see
 :atlas:`Atlas Access </tutorial/manage-users/>` in the
 |service| documentation.
 
+.. _limited-peering-support:
+
+Limited Support for Network Peering Connections
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+You cannot enable |charts| if your |service| project contains a cluster
+with |gcp| :abbr:`VPC (Virtual Private Cloud)` or Azure VNet
+:atlas:`network peering </security-vpc-peering>` enabled.
+When network peering is enabled, GCP and Azure block network access
+from outside of the peered network, meaning these projects cannot
+communicate with the MongoDB Stitch backend that powers |charts-short|.
+
+To access |charts| on a project containing a |gcp| or Azure-backed
+cluster with network peering enabled,
+:onprem:`install the on-premises version of MongoDB Charts
+</installation>` on a virtual machine in the VPC or VNet instance.
+
+.. note::
+
+   |charts| is fully supported on |aws| clusters with network peering
+   enabled.
+
 Procedure
 ---------