Overview

This terraform configuration is used to build a Rancher Kubernetes Engine (RKE) cluster on cloud.ca infrastructure.

Table of Content

• Resources
• Requirements
• Available Kubernetes Versions
• Inputs
• Outputs
• Usage
• License

Resources

It will create the required infrastructure:

• one or several k8s master node(s)
• two or several k8s worker nodes

Requirements

• Terraform 0.12+
• Terraform Provider for cloud.ca 1.5+
• Terraform Provider for RKE 0.14.1
• terraform-docs 0.8+

Available Kubernetes Versions

Version of Kubernetes to be used in the RKE cluster can be controlled with kubernetes_version, which depends on the version of terraform-provider-rke being used in which depends on the version of RKE binary beind used in that provider version.

To get the list of available (and the default) version of Kubernetes take a look at release notes of terraform-provider-rke and RKE respectively.

Providers

Name	Version
cloudca	~> 1.5
local	n/a
rke	0.14.1
template	n/a
tls	n/a

Inputs

Name	Description	Type	Default	Required
api_key	cloud.ca API key to use	any	n/a	yes
environment_id	The environment ID to create resources in	any	n/a	yes
network_id	The network ID to create resources in	any	n/a	yes
kubernetes_version	Kubernetes version to install in the cluster	string	"v1.15.3-rancher1-1"	no
master_count	Number of master node(s) to create	number	1	no
node_prefix	Prefix to be used in name of instances, e.g. cca in cca-foo-service01	string	"cca"	no
node_service	Service to be used in name of instances, e.g. service in cca-foo-service01	string	"rke"	no
node_type	Type to be used in name of instances, e.g. foo in cca-foo-service01	string	"cluster"	no
node_username	The username to create in the nodes with SSH access	string	"rke"	no
worker_count	Number of worker node(s) to create	number	2	no

Outputs

Name	Description
master_ips	List of private IP of master node(s)
worker_ips	List of private IP of worker node(s)

Usage

1. Clone the repository into an appropriate name:

   git clone https://github.com/cloud-ca/cloudca-rke-cluster.git cloudca-rke-cluster

2. Create terraform.tfvars containing:

   api_key        = "<cloud_ca_API_KEY>"
   environment_id = "<ENVIRONMENT_ID>"   # to create cluster in
   network_id     = "<NETWORK_ID>"       # to create cluster in

3. Execute the following command to initialize the repository:

   make init plan

License

MIT License

Copyright (c) 2019 cloud.ca

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.