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All Projects → scholzj → Aws Minikube

scholzj / Aws Minikube

Licence: apache-2.0
Single node Kubernetes instance implemented using Terraform and kubeadm

Labels

kubernetesawsterraformhclkubernetes-setupminikubekubeadm

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AWS Minikube

AWS Minikube is a single node Kubernetes deployment in AWS. It creates an EC2 host and deploys the Kubernetes cluster using Kubeadm tool. It provides full integration with AWS. It is also able to handle ELB load balancers, EBS disks, Route53 domains and other AWS resources.

Updates

  • 21.2.2021 Update to Kubernetes 1.20.4
  • 17.1.2021 Update to Kubernetes 1.20.2
  • 19.12.2020 Update to Kubernetes 1.20.1
  • 18.12.2020 Update to Kubernetes 1.20.0, update add-ons, move to Containerd runtime
  • 23.11.2020 Update to Kubernetes 1.19.4
  • 18.10.2020 Update to Kubernetes 1.19.3
  • 19.9.2020 Update to Kubernetes 1.19.2
  • 5.9.2020 Update to Kubernetes 1.19.0, update add-on versions
  • 16.8.2020 Update to Kubernetes 1.18.8
  • 20.6.2020 Update to Kubernetes 1.18.4, Update Kubernetes Dashboard to 2.0.2
  • 26.4.2020 Update to Kubernetes 1.18.2, Update Kubernetes Dashboard to 2.0.0
  • 12.4.2020 Update to Kubernetes 1.18.1
  • 29.4.2020 Update to Kubernetes 1.18.0, update some addons
  • 21.3.2020 Update to Kubernetes 1.17.4
  • 3.3.2020 Update to Kubernetes 1.17.3, update addons and Calico SDN
  • 15.12.2019 Update to Kubernetes 1.17.0
  • 24.11.2019 Update to Kubernetes 1.16.3
  • 20.10.2019 Update to Kubernetes 1.16.2
  • 6.10.2019 Update to Kubernetes 1.16.1
  • 21.9.2019 Update to Kubernetes 1.16, update addons and Calico
  • 24.8.2019 Update to Kubernetes 1.15.3, fix Ingress RBAC
  • 6.8.2019 Update to Kubernetes 1.15.2
  • 27.7.2019 Update to Kubernetes 1.15.1, upgrade addons and move to Terraform 0.12
  • 8.6.2019 Update to Kubernetes 1.14.3, better SE Linux handling, SSH and API CIDR configuration (thats for the contributions)
  • 22.5.2019 Update to Kubernetes 1.14.2
  • 13.4.2019 Update to Kubernetes 1.14.1
  • 31.3.2019 Update to Kubernetes 1.14.0, Ingress 0.23.0, External DNS 0.5.12, Calico 3.6.1
  • 2.3.2019 Update to Kubernetes 1.13.4 (CVE-2019-1002100)
  • 3.2.2019 Update to Kubernetes 1.13.3
  • 19.1.2019 Update to Kubernetes 1.13.2
  • 28.12.2018 Update Kubernetes Dashboard to 1.10.1
  • 17.12.2018 Update to Kubernetes 1.13.1 and Calico 3.4.0
  • 8.12.2018 Update to Kubernetes 1.13.0, added storage class for st1 HDD disks and upgrade to Ingress 0.21.0
  • 1.12.2018 Update to Kubernetes 1.12.3 and External DNS 0.5.9
  • 9.11.2018 Update to Kubernetes 1.12.2, Update addons (Dashboard 1.10.0, Heapster 1.5.4, Ingress 0.20.0, External DNS 0.5.8)
  • 18.8.2018 Update to Kubernetes 1.11.2, Update addons (Dashboard 1.8.3, Heapster 1.5.3, Ingress 0.17.1, External DNS 0.5.4)
  • 28.6.2018: Fix error when disabling already disabled SE Linux (#1)
  • 23.6.2018: Update to Kubernetes 1.10.5
  • 8.6.2018: Update to Kubernetes 1.10.4
  • 27.5.2018: Update to Kubernetes 1.10.3
  • 28.4.2018: Update to Kubernetes 1.10.2, make AMI image configurable
  • 24.3.2018: Update to Kubernetes 1.10.1
  • 31.3.2018: Update to Kubernetes 1.10.0, update Calico networking and update Kubernetes Dahsboard, Ingress and Heapster addons
  • 24.3.2018: Update to Kubernetes 1.9.6
  • 17.3.2018: Update to Kubernetes 1.9.4
  • 10.2.2018: Update to Kubernetes 1.9.3
  • 22.1.2018: Update Calico to 3.0.1
  • 22.1.2018: Update to Kubernetes 1.9.2, Ingres 0.10.0 and Dashboard 1.8.2
  • 6.1.2018: Update to Kubernetes 1.9.1
  • 16.12.2017: Update to Kubernetes 1.9.0, update Dashboard, Ingress and Heapster dependencies
  • 8.12.2017: Update to Kubernetes 1.8.5
  • 1.12.2017: Fix problems with incorrect Ingress RBAC rights
  • 28.11.2017: Update addons (Heapster, Ingress, Dashboard, External DNS)
  • 23.11.2017: Update to Kubernetes 1.8.4
  • 9.11.2017: Update to Kubernetes 1.8.3
  • 4.11.2017: Update to Kubernetes 1.8.2
  • 14.10.2017: Update to Kubernetes 1.8.1
  • 29.9.2017: Update to Kubernetes 1.8
  • 28.9.2017: Updated addon versions
  • 26.9.2017: Split into module and configuration
  • 23.9.2017: Bootstrap cluster purely through cloud init to skip AWS S3
  • 18.9.2017: Clarify the requirements for AWS infrastructure
  • 11.9.2017: Make it possible to connect to the cluster through the Elastic IP address instead of DNS name
  • 2.9.2017: Update to Kubeadm and Kubernetes 1.7.5
  • 22.8.2017: Update to Kubeadm and Kubernetes 1.7.4

Prerequisites and Dependencies

AWS Minikube deployes into an existing VPC / public subnet. If you don't have your VPC / subnet yet, you can use this configuration to create one.

  • The VPC / subnet should be properly linked with Internet Gateway (IGW) and should have DNS and DHCP enabled.
  • Hosted DNS zone configured in Route53 (in case the zone is private you have to use IP address to copy kubeconfig and access the cluster). To deploy AWS Minikube there are no other dependencies apart from Terraform. Kubeadm is used only on the EC2 host and doesn't have to be installed locally.

Configuration

The configuration is done through Terraform variables. Example tfvars file is part of this repo and is named example.tfvars. Change the variables to match your environment / requirements before running terraform apply ....

Option Explanation Example
aws_region AWS region which should be used eu-central-1
cluster_name Name of the Kubernetes cluster (also used to name different AWS resources) my-minikube
aws_instance_type AWS EC2 instance type t2.medium
ssh_public_key SSH key to connect to the remote machine ~/.ssh/id_rsa.pub
aws_subnet_id Subnet ID where minikube should run subnet-8d3407e5
ami_image_id ID of the AMI image which should be used. If empty, the latest CentOS 7 image will be used. See README.md for AMI image requirements. ami-b81dbfc5
hosted_zone DNS zone which should be used my-domain.com
hosted_zone_private Is the DNS zone public or ptivate false
addons List of addons which should be installed [ "https://raw.githubusercontent.com/scholzj/aws-minikube/master/addons//storage-class.yaml" ]
tags Tags which should be applied to all resources { Hello = "World" }
ssh_access_cidr Network CIDR from which SSH access will be allowed 0.0.0.0/0
api_access_cidr Network CIDR from which API access will be allowed 0.0.0.0/0

Creating AWS Minikube

To create AWS Minikube,

  • Export AWS credentials into environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
  • Apply Terraform configuration:
terraform apply --var-file example.tfvars

Deleting AWS Minikube

To delete AWS Minikube,

  • Export AWS credentials into environment variables AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY
  • Destroy Terraform configuration:
terraform destroy --var-file example.tfvars

Using custom AMI Image

AWS Minikube is built and tested on CentOS 7. But gives you the possibility to use their own AMI images. Your custom AMI image should be based on RPM distribution and should be similar to Cent OS 7. When ami_image_id variable is not specified, the latest available CentOS 7 image will be used.

Addons

Currently, following addons are supported:

  • Kubernetes dashboard
  • Heapster for resource monitoring
  • Storage class for automatic provisioning of persisitent volumes
  • External DNS
  • Ingress

The addons will be installed automatically based on the Terraform variables.

Custom Addons

Custom addons can be added if needed. From every URL in the addons list, the initialization scripts will automatically call kubectl -f apply <Addon URL> to deploy it. Minikube is using RBAC. So the custom addons have to be RBAC ready.

Tagging

If you need to tag resources created by your Kubernetes cluster (EBS volumes, ELB load balancers etc.) check this AWS Lambda function which can do the tagging.

Frequently Asked Questions

How to access Kuberntes Dashboard

The Kubernetes Dashboard addon is by default not exposed to the internet. This is intentional for security reasons (no authentication / authorization) and to save costs for Amazon AWS ELB load balancer.

You can access the dashboard easily fro any computer with installed and configured kubectl:

  1. From command line start kubectl proxy
  2. Go to your browser and open http://127.0.0.1:8001/ui
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