Github user drigodwin commented on a diff in the pull request:
https://github.com/apache/brooklyn-docs/pull/93#discussion_r71319310
--- Diff: guide/yaml/blueprinting-tips.md ---
@@ -98,8 +151,32 @@ If writing a custom integration, the following
recommendations may be useful:
For example, if deploying a MongoDB cluster then first focus on
single-node MongoDB, and then make that
configurable and composable for a cluster.
-* Use the test framework to write test cases, so that others can run these
to confirm that the
- entity works in their environment.
-
* Where appropriate, share the new entity with the Brooklyn community so
that it can be reviewed,
tested and improved by others in the community!
+
+
+## Cloud Portability
+
+You get a lot of support out-of-the-box for deploying blueprints to
different clouds. The points
+below may also be of help:
+
+* Test (and regression test) on each target cloud.
+
+* Be aware that images on different clouds can be very different. For
example, two CentOS 6.6 VMs
+ might have different pre-installed libraries, different default iptables
or SE Linux settings,
+ different repos, different sudo configuration, etc.
+
+* Different clouds handle private and public IPs differently. One must be
careful about which
+ address to advertise to for use by other entities.
+
+* VMs on some clouds will not have a well-configured hostname (e.g. `ping
$(hostname)` can fail).
--- End diff --
VMs on some clouds will not -> VMs on some clouds may not
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