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new e39f75a document minimum memory/CPU for running default OpenWhisk
config (#441)
e39f75a is described below
commit e39f75a4b3b29197f0a7d3df4c6269453670d77b
Author: David Grove <dgrove-...@users.noreply.github.com>
AuthorDate: Tue Mar 12 16:30:18 2019 -0400
document minimum memory/CPU for running default OpenWhisk config (#441)
---
README.md | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/README.md b/README.md
index d4f891c..69c9f4e 100644
--- a/README.md
+++ b/README.md
@@ -68,8 +68,9 @@ acceptable.
The simplest way to get a small Kubernetes cluster suitable for
development and testing is to use one of the Docker-in-Docker
approaches for running Kubernetes directly on top of Docker on your
-development machine. Depending on your host operating system, we
-recommend the following:
+development machine. Configuring Docker with 4GB of memory and
+2 virtual CPUs is sufficient for the default settings of OpenWhisk.
+Depending on your host operating system, we recommend the following:
1. MacOS: Use the built-in Kubernetes support in Docker for Mac
version 18.06 or later. Please follow our
[setup instructions](docs/k8s-docker-for-mac.md) to initially create
@@ -88,14 +89,20 @@ your cluster.
Minikube provides a Kubernetes cluster running inside a virtual
machine (for example VirtualBox). It can be used on MacOS, Linux, or
Windows to run OpenWhisk, but is somewhat less flexible than the
-docker-in-docker options described above. For details on setting up
+docker-in-docker options described above. Configuring the Minikube VM
+with 4GB of memory and 2 virtual CPUs is sufficient for the default
+settings of OpenWhisk. For details on setting up
Minikube, see these [setup instructions](docs/k8s-minikube.md).
### Using a Kubernetes cluster from a cloud provider
You can also provision a Kubernetes cluster from a cloud provider,
subject to the cluster meeting the [technical
-requirements](docs/k8s-technical-requirements.md). We have
+requirements](docs/k8s-technical-requirements.md). You will need at least
+1 worker node with 4GB of memory and 2 virtual CPUs to deploy the default
+configuration of OpenWhisk. You can deploy to significantly larger clusters
+by scaling up the replica count of the various components and labeling multiple
+nodes as invoker nodes. We have
detailed documentation on using Kubernetes clusters from the following
major cloud providers:
* [IBM (IKS)](docs/k8s-ibm-public.md) and [IBM (ICP)](docs/k8s-ibm-private.md)
