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Features. Automates the provisioning of Highly Available Kubernetes clusters. Built on a state-sync model for dry-runs and automatic idempotency. Ability to generate Terraform. Supports zero-config managed kubernetes add-ons. Command line autocompletion. YAML Manifest Based API Configuration.
kOps is a tool to create, destroy, upgrade and maintain production-grade Kubernetes clusters on AWS, GCE, DigitalOcean, Hetzner, OpenStack and Azure. Learn how to use kOps with documentation, releases, office hours and examples.
- Create the “kops” AWS IAM user. Create an IAM user called “kops” with required permissions by running the following commands in the AWS CLI: aws iam create-group --group-name kops; aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/AmazonEC2FullAccess --group-name kops; aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/AmazonRoute53FullAccess --group-name kops; aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/AmazonS3FullAccess --group-name kops; aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/IAMFullAccess --group-name kops; aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/AmazonVPCFullAccess --group-name kops; aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/AmazonSQSFullAccess --group-name kops; aws iam attach-group-policy --policy-arn arn:aws:iam::aws:policy/AmazonEventBridgeFullAccess --group-name kops; aws iam create-user --user-name kops; aws iam add-user-to-group --user-name kops --group-name kops; aws iam create-access-key --user-name kops;
- Configure DNS setup. Next, create a hosted zone in AWS for your kops subdomain: #install jq locally before running the below command aws route53 create-hosted-zone --name kops.yourdomain.com --caller-reference $(uuidgen) | jq .DelegationSet.NameServers.
- Create cluster state storage. kOps stores its configurations, keys, and related items, in an S3 bucket to manage Kubernetes clusters. You need to create a dedicated S3 bucket for this purpose.
- Install kOps. Next, install kOps version v1.22.2 (the latest version at the time of writing). The installation process varies depending on your local operating system.
Installing - kOps - Kubernetes Operations. Prerequisite. kubectl is required, see here. macOS and Linux From Homebrew. brew update&& brew install kops. The kops binary is also available via our releases. GitHub Releases. Linux.
- Setup Your Environment¶
- Configure Dns¶
- Testing Your DNS Setup¶
- Cluster State Store¶
- Cluster OIDC Store¶
- Creating Your First Cluster¶
- Next Steps¶
- Feedback¶
- Legal¶
- GeneratedCaptionsTabForHeroSec
AWS¶
In order to correctly prepare your AWS account for kops, we require you toinstall the AWS CLI tools, and have API credentials for an account that hasthe permissions to create a new IAM account for kopslater in the guide. Once you've installed the AWS CLI tools and have correctly setupyour system to use the official AWS methods of registering security credentialsas defined here we'll be ready to run kops, as it uses the Go AWS SDK.
In order to build a Kubernetes cluster with kops, we need to preparesomewhere to build the required DNS records. There are three scenariosbelow and you should choose the one that most closely matches your AWSsituation. Note: if you want to use gossip-based DNS, you can skip this section.
This section is not required if a gossip-based cluster is created. You should now be able to dig your domain (or subdomain) and see the AWS NameServers on the other end. Should return something similar to: This is a critical component when setting up clusters. If you are experiencingproblems with the Kubernetes API not coming up, chances are someth...
In order to store the state of your cluster, and the representation of yourcluster, we need to create a dedicated S3 bucket for kops to use. Thisbucket will become the source of truth for our cluster configuration. Inthis guide we'll call this bucket example-com-state-store, but you shouldadd a custom prefix as bucket names need to be unique. We re...
In order for ServiceAccounts to use external permissions (aka IAM Roles for ServiceAccounts), you also need a bucket for hosting the OIDC documents.While you can reuse the bucket above if you grant it a public ACL, we do recommend a separate bucket for these files. The ACL must be public so that the AWS STS service can access them. Information rega...
Prepare local environment¶
We're ready to start creating our first cluster! Let's first set up a fewenvironment variables to make the process easier. For a gossip-based cluster, make sure the name ends with k8s.local. For example: Note: You don’t have to use environmental variables here. You can always definethe values using the –name and –state flags later.
Create cluster configuration¶
We will need to note which availability zones are available to us. In thisexample we will be deploying our cluster to the us-west-2 region. Below is a create cluster command. We'll use the most basic example possible,with more verbose examples in high availability.The below command will generate a cluster configuration, but will not start buildingit. Make sure you have generated an SSH key pair before creating your cluster. All instances created by kopswill be built within ASG (Auto Scaling G...
Customize Cluster Configuration¶
Now we have a cluster configuration, we can look at every aspect that definesour cluster by editing the description. This opens your editor (as defined by $EDITOR) and allows you to edit theconfiguration. The configuration is loaded from the S3 bucket we createdearlier, and automatically updated when we save and exit the editor. We'll leave everything set to the defaults for now, but the rest of kopsdocumentation covers additional settings and configuration you can enable.
Now that you have a working kOps cluster, read through the recommendations for production setups guide
There's an incredible team behind kOps and we encourage you to reach out to thecommunity on the KubernetesSlack(http://slack.k8s.io/). Bring yourquestions, comments, and requests and meet the people behind the project!
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Learn how to use kOps to create and manage Kubernetes clusters on AWS. Follow the steps to install AWS CLI, create IAM user, configure DNS, and run kops commands.
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kops is a tool to create and manage Kubernetes clusters on various cloud providers. Learn about the latest release, features, changes and issues of kops.
Apr 27, 2017 · Learn how to use Kops, an official Kubernetes project, to create and manage production-grade Kubernetes clusters on AWS. Follow the steps to create a cluster, configure DNS, and update the node instance group.
