by Задача: Учебная задача создать кластер K8s в AWS на обычных инстансах не используя EKS
|
1 2 3 4 5 6 7 8 9 10 11 12 13 |
sudo apt update sudo apt install unzip #terraform wget https://releases.hashicorp.com/terraform/0.12.26/terraform_0.12.26_linux_amd64.zip unzip terraform_0.12.26_linux_amd64.zip sudo mv terraform /usr/local/bin/ #kubespray git clone https://github.com/kubernetes-sigs/kubespray.git && cd kubespray sudo apt install python3-pip pip3 install -r requirements.txt PATH=\$PATH:~/.local/bin && echo "PATH=\$PATH:~/.local/bin" >> ~/.bashrc |
Параметры подключения к AWS
|
1 2 3 4 5 6 7 8 9 10 |
cat <<EOF > ./contrib/terraform/aws/credentials.tfvars #AWS Access Key AWS_ACCESS_KEY_ID = "" #AWS Secret Key AWS_SECRET_ACCESS_KEY = "" #EC2 SSH Key Name AWS_SSH_KEY_NAME = "AWS-test" #AWS Region AWS_DEFAULT_REGION = "eu-central-1" EOF |
Параметр кластера
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 |
cat <<EOF > ./contrib/terraform/aws/terraform.tfvars #Global Vars aws_cluster_name = "devtest" #VPC Vars aws_vpc_cidr_block = "10.250.192.0/18" aws_cidr_subnets_private = ["10.250.192.0/20", "10.250.208.0/20"] aws_cidr_subnets_public = ["10.250.224.0/20", "10.250.240.0/20"] #Bastion Host aws_bastion_size = "t2.micro" #Kubernetes Cluster aws_kube_master_num = 3 aws_kube_master_size = "t2.macro" aws_etcd_num = 3 aws_etcd_size = "t2.micro" aws_kube_worker_num = 3 aws_kube_worker_size = "t2.micro" #Settings AWS ELB aws_elb_api_port = 6443 k8s_secure_api_port = 6443 kube_insecure_apiserver_address = "0.0.0.0" default_tags = { # Env = "devtest" # Product = "kubernetes" } inventory_file = "../../../inventory/hosts" EOF |
|
1 |
cd ~/kubespray/contrib/terraform/aws/ |
Указываем дистрибутив для виртуалок. Ищем и заменяем в файле variables.tf
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
vim variables.tf data "aws_ami" "distro" { most_recent = true filter { name = "name" values = ["ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-*"] } filter { name = "virtualization-type" values = ["hvm"] } owners = ["099720109477"] #Ubuntu } |
|
1 2 |
terraform plan -out myplan -var-file=credentials.tfvars terraform apply "myplan" |
Ставим K8s
|
1 2 3 |
cd ~/kubespray cat inventory/hosts ansible-playbook -i ./inventory/hosts ./cluster.yml -e ansible_user=ubuntu -b --become-user=root --flush-cache -e ansible_ssh_private_key_file=<path to EC2 SSH private key file> |
