kubespray 2.24 추가

contrib/terraform/nifcloud/README.md

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+# Kubernetes on NIFCLOUD with Terraform
+
+Provision a Kubernetes cluster on [NIFCLOUD](https://pfs.nifcloud.com/) using Terraform and Kubespray
+
+## Overview
+
+The setup looks like following
+
+```text
+                              Kubernetes cluster
+                        +----------------------------+
++---------------+       |   +--------------------+   |
+|               |       |   | +--------------------+ |
+| API server LB +---------> | |                    | |
+|               |       |   | | Control Plane/etcd | |
++---------------+       |   | | node(s)            | |
+                        |   +-+                    | |
+                        |     +--------------------+ |
+                        |           ^                |
+                        |           |                |
+                        |           v                |
+                        |   +--------------------+   |
+                        |   | +--------------------+ |
+                        |   | |                    | |
+                        |   | |        Worker      | |
+                        |   | |        node(s)     | |
+                        |   +-+                    | |
+                        |     +--------------------+ |
+                        +----------------------------+
+```
+
+## Requirements
+
+* Terraform 1.3.7
+
+## Quickstart
+
+### Export Variables
+
+* Your NIFCLOUD credentials:
+
+  ```bash
+  export NIFCLOUD_ACCESS_KEY_ID=<YOUR ACCESS KEY>
+  export NIFCLOUD_SECRET_ACCESS_KEY=<YOUR SECRET ACCESS KEY>
+  ```
+
+* The SSH KEY used to connect to the instance:
+  * FYI: [Cloud Help(SSH Key)](https://pfs.nifcloud.com/help/ssh.htm)
+
+  ```bash
+  export TF_VAR_SSHKEY_NAME=<YOUR SSHKEY NAME>
+  ```
+
+* The IP address to connect to bastion server:
+
+  ```bash
+  export TF_VAR_working_instance_ip=$(curl ifconfig.me)
+  ```
+
+### Create The Infrastructure
+
+* Run terraform:
+
+  ```bash
+  terraform init
+  terraform apply -var-file ./sample-inventory/cluster.tfvars
+  ```
+
+### Setup The Kubernetes
+
+* Generate cluster configuration file:
+
+  ```bash
+  ./generate-inventory.sh > sample-inventory/inventory.ini
+
+* Export Variables:
+
+  ```bash
+  BASTION_IP=$(terraform output -json | jq -r '.kubernetes_cluster.value.bastion_info | to_entries[].value.public_ip')
+  API_LB_IP=$(terraform output -json | jq -r '.kubernetes_cluster.value.control_plane_lb')
+  CP01_IP=$(terraform output -json | jq -r '.kubernetes_cluster.value.control_plane_info | to_entries[0].value.private_ip')
+  export ANSIBLE_SSH_ARGS="-o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ProxyCommand=\"ssh root@${BASTION_IP} -W %h:%p\""
+  ```
+
+* Set ssh-agent"
+
+  ```bash
+  eval `ssh-agent`
+  ssh-add <THE PATH TO YOUR SSH KEY>
+  ```
+
+* Run cluster.yml playbook:
+
+  ```bash
+  cd ./../../../
+  ansible-playbook -i contrib/terraform/nifcloud/inventory/inventory.ini cluster.yml
+  ```
+
+### Connecting to Kubernetes
+
+* [Install kubectl](https://kubernetes.io/docs/tasks/tools/) on the localhost
+* Fetching kubeconfig file:
+
+  ```bash
+  mkdir -p ~/.kube
+  scp -o ProxyCommand="ssh root@${BASTION_IP} -W %h:%p" root@${CP01_IP}:/etc/kubernetes/admin.conf ~/.kube/config
+  ```
+
+* Rewrite /etc/hosts
+
+  ```bash
+  sudo echo "${API_LB_IP} lb-apiserver.kubernetes.local" >> /etc/hosts
+  ```
+
+* Run kubectl
+
+  ```bash
+  kubectl get node
+  ```
+
+## Variables
+
+* `region`: Region where to run the cluster
+* `az`: Availability zone where to run the cluster
+* `private_ip_bn`: Private ip address of bastion server
+* `private_network_cidr`:  Subnet of private network
+* `instances_cp`: Machine to provision as Control Plane. Key of this object will be used as part of the machine' name
+  * `private_ip`: private ip address of machine
+* `instances_wk`: Machine to provision as Worker Node. Key of this object will be used as part of the machine' name
+  * `private_ip`: private ip address of machine
+* `instance_key_name`: The key name of the Key Pair to use for the instance
+* `instance_type_bn`: The instance type of bastion server
+* `instance_type_wk`: The instance type of worker node
+* `instance_type_cp`: The instance type of control plane
+* `image_name`: OS image used for the instance
+* `working_instance_ip`: The IP address to connect to bastion server
+* `accounting_type`: Accounting type. (1: monthly, 2: pay per use)