Typo fix dont'->don't

a small typo fix dont'->don't
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AdamDang 2018-04-06 09:42:35 +08:00 committed by GitHub
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@ -5,7 +5,7 @@ Before rushing in to replicate any of the exercises, please ensure your basic en
Ensure that the following points are covered and working in your environment:
- AWS cli fully configured (aws account already with proper permissions/roles needed for kops). Depending on your distro, you can setup directly from packages, or if you want the most updated version, use "pip" and install awscli by issuing a "pip install awscli" command. Your choice!
- Local ssh key ready on ~/.ssh/id_rsa / id_rsa.pub. You can generate it using "ssh-keygen" command if you dont' have one already: `ssh-keygen -t rsa -f ~/.ssh/id_rsa -P ""`.
- Local ssh key ready on ~/.ssh/id_rsa / id_rsa.pub. You can generate it using "ssh-keygen" command if you don't have one already: `ssh-keygen -t rsa -f ~/.ssh/id_rsa -P ""`.
- Region set to us-east-1 (az's: us-east-1a, us-east-1b, us-east-1c, us-east-1d and us-east-1e). For most of our exercises we'll deploy our clusters in "us-east-1". For real HA at kubernetes master level, you need 3 masters. If you want to ensure that each master is deployed on a different availability zone, then a region with "at least" 3 availability zones is required here. You can still deploy a multi-master kubernetes setup on regions with just 2 az's or even 1 az but this mean that two or all your masters will be deployed on a single az and if this az goes offline then you'll lose two or all your masters. If possible, always pick a region with at least 3 different availability zones for real H.A. You always can check amazon regions and az's on the link: [AWS Global Infrastructure](https://aws.amazon.com/about-aws/global-infrastructure/). Remember: The masters are Kubernetes control plane. If your masters die, you loose control of your Kubernetes cluster.
- kubectl and kops installed. For this last part, you can do this with using following commands. Next commands assume you are running a amd64/x86_64 linux distro: