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Merge pull request #18258 from antoineco/ec2

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k8s-merge-robot
2015-12-10 11:14:49 -08:00
parent 2a5e83ad70 926148c5ee
commit 0f399211f7
2 changed files with 11 additions and 7 deletions
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5
cluster/aws/options.md
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@@ -38,9 +38,8 @@ export MASTER_SIZE=c4.large
export NODE_SIZE=r3.large
```
If you don't specify master and minion sizes, the scripts will attempt to guess the correct size of the master and worker nodes based on `${NUM_NODES}`.
In particular for clusters less than 50 nodes it will
use a `t2.micro` for clusters between 50 and 150 nodes it will use a `t2.small` and for clusters with greater than 150 nodes it will use a `t2.medium`.
If you don't specify master and minion sizes, the scripts will attempt to guess the correct size of the master and worker
nodes based on `${NUM_NODES}`. See [Getting started on AWS EC2](../../docs/getting-started-guides/aws.md) for details.
Please note: `kube-up` utilizes ephemeral storage available on instances for docker storage. EBS-only instance types do not
support ephemeral storage and will default to docker storage on the root disk which is usually only 8GB.

13
docs/getting-started-guides/aws.md
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@@ -78,7 +78,7 @@ This process takes about 5 to 10 minutes. Once the cluster is up, the IP address
as well as information about the default services running in the cluster (monitoring, logging, dns). User credentials and security
tokens are written in `~/.kube/config`, they will be necessary to use the CLI or the HTTP Basic Auth.
By default, the script will provision a new VPC and a 4 node k8s cluster in us-west-2a (Oregon) with `t2.micro` instances running on Ubuntu.
By default, the script will provision a new VPC and a 4 node k8s cluster in us-west-2a (Oregon) with EC2 instances running on Ubuntu.
You can override the variables defined in [config-default.sh](http://releases.k8s.io/HEAD/cluster/aws/config-default.sh) to change this behavior as follows:
```bash
@@ -91,10 +91,15 @@ export INSTANCE_PREFIX=k8s
...
```
The scripts will attempt to guess the correct size of the master and worker nodes based on `${NUM_NODES}`, in particular for clusters less than 50 nodes it will
use a `t2.micro` for clusters between 50 and 150 nodes it will use a `t2.small` and for clusters with greater than 150 nodes it will use a `t2.medium`.
If you don't specify master and minion sizes, the scripts will attempt to guess the correct size of the master and worker nodes based on `${NUM_NODES}`. In
particular, for clusters less than 50 nodes it will use a `t2.micro`, for clusters between 50 and 150 nodes it will use a `t2.small` and for clusters with
greater than 150 nodes it will use a `t2.medium`.
It will also try to create or reuse a keypair called "kubernetes", and IAM profiles called "kubernetes-master" and "kubernetes-minion".
WARNING: beware that `t2` instances receive a limited number of CPU credits per hour and might not be suitable for clusters where the CPU is used
consistently. As a rough estimation, consider 15 pods/node the absolute limit a `t2.large` instance can handle before it starts exhausting its CPU credits
steadily, although this number depends heavily on the usage.
The script will also try to create or reuse a keypair called "kubernetes", and IAM profiles called "kubernetes-master" and "kubernetes-minion".
If these already exist, make sure you want them to be used here.
NOTE: If using an existing keypair named "kubernetes" then you must set the `AWS_SSH_KEY` key to point to your private key.