Vsphere (#7306)
* Add terraform scripts for vSphere * Fixup: Add terraform scripts for vSphere * Add inventory generation * Use machines var to provide IPs * Add README file * Add default.tfvars file * Fix newlines at the end of files * Remove master.count and worker.count variables * Fixup cloud-init formatting * Fixes after initial review * Add warning about disabled DHCP * Fixes after second review * Add sample-inventory
This commit is contained in:
Jakub Krzywda
GitHub
parent
100d9333ca
commit
0a0156c946
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@ -100,6 +100,12 @@ tf-0.13.x-validate-exoscale:
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variables:
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TF_VERSION: 0.13.5
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PROVIDER: exoscale
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tf-0.13.x-validate-vsphere:
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extends: .terraform_validate
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variables:
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TF_VERSION: 0.13.5
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PROVIDER: vsphere
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CLUSTER: $CI_COMMIT_REF_NAME
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tf-0.14.x-validate-openstack:
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@ -128,6 +134,12 @@ tf-0.14.x-validate-exoscale:
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variables:
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TF_VERSION: 0.14.3
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PROVIDER: exoscale
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tf-0.14.x-validate-vsphere:
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extends: .terraform_validate
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variables:
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TF_VERSION: 0.14.3
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PROVIDER: vsphere
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CLUSTER: $CI_COMMIT_REF_NAME
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# tf-packet-ubuntu16-default:
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117
contrib/terraform/vsphere/README.md
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117
contrib/terraform/vsphere/README.md
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@ -0,0 +1,117 @@
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# Kubernetes on Exoscale with Terraform
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Provision a Kubernetes cluster on [vSphere](https://www.vmware.com/se/products/vsphere.html) using Terraform and Kubespray.
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## Overview
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The setup looks like following.
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```text
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Kubernetes cluster
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+-----------------------+
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| +--------------+ |
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| | +--------------+ |
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| | | | |
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| | | Master/etcd | |
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| | | node(s) | |
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| +-+ | |
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| +--------------+ |
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| ^ |
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| | |
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| v |
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| +--------------+ |
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| | +--------------+ |
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| | | | |
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| | | Worker | |
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| | | node(s) | |
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| +-+ | |
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| +--------------+ |
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+-----------------------+
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```
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## Warning
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This setup assumes that the DHCP is disabled in the vSphere cluster and IP addresses have to be provided in the configuration file.
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## Requirements
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* Terraform 0.13.0 or newer
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*0.12 also works if you modify the provider block to include version and remove all `versions.tf` files*
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## Quickstart
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NOTE: *Assumes you are at the root of the kubespray repo*
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Copy the sample inventory for your cluster and copy the default terraform variables.
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```bash
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CLUSTER=my-vsphere-cluster
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cp -r inventory/sample inventory/$CLUSTER
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cp contrib/terraform/vsphere/default.tfvars inventory/$CLUSTER/
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cd inventory/$CLUSTER
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```
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Edit `default.tfvars` to match your setup. You MUST set values specific for you network and vSphere cluster.
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```bash
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# Ensure $EDITOR points to your favorite editor, e.g., vim, emacs, VS Code, etc.
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$EDITOR default.tfvars
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```
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For authentication in your vSphere cluster you can use the environment variables.
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```bash
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export TF_VAR_vsphere_user=username
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export TF_VAR_vsphere_password=password
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```
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Run Terraform to create the infrastructure.
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```bash
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terraform init ../../contrib/terraform/vsphere
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terraform apply \
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-var-file default.tfvars \
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-state=tfstate-$CLUSTER.tfstate \
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../../contrib/terraform/vsphere
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```
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You should now have a inventory file named `inventory.ini` that you can use with kubespray.
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You can now copy your inventory file and use it with kubespray to set up a cluster.
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You can type `terraform output` to find out the IP addresses of the nodes.
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It is a good idea to check that you have basic SSH connectivity to the nodes. You can do that by:
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```bash
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ansible -i inventory.ini -m ping all
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```
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Example to use this with the default sample inventory:
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```bash
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ansible-playbook -i inventory.ini ../../cluster.yml -b -v
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```
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## Variables
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### Required
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* `machines`: Machines to provision. Key of this object will be used as the name of the machine
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* `node_type`: The role of this node *(master|worker)*
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* `ip`: The IP address with the netmask (CIDR notation)
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* `gateway`: The IP address of the network gateway
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* `ssh_public_keys`: List of public SSH keys to install on all machines
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* `vsphere_datacenter`: The identifier of vSphere data center
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* `vsphere_compute_cluster`: The identifier of vSphere compute cluster
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* `vsphere_datastore`: The identifier of vSphere data store
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* `vsphere_server`: The address of vSphere server
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* `vsphere_hostname`: The IP address of vSphere hostname
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* `template_name`: The name of a base image (the image has to be uploaded to vSphere beforehand)
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### Optional
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* `prefix`: Prefix to use for all resources, required to be unique for all clusters in the same project *(Defaults to `default`)*
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* `dns_primary`: The IP address of primary DNS server *(Defaults to `8.8.4.4`)*
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* `dns_secondary`:The IP address of secondary DNS server *(Defaults to `8.8.8.8`)*
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An example variables file can be found `default.tfvars`
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34
contrib/terraform/vsphere/default.tfvars
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34
contrib/terraform/vsphere/default.tfvars
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@ -0,0 +1,34 @@
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prefix = "default"
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inventory_file = "inventory.ini"
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machines = {
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"master-0" : {
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"node_type" : "master",
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"ip" : "i-did-not-read-the-docs" # e.g. 192.168.0.2/24
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},
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"worker-0" : {
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"node_type" : "worker",
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"ip" : "i-did-not-read-the-docs" # e.g. 192.168.0.2/24
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},
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"worker-1" : {
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"node_type" : "worker",
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"ip" : "i-did-not-read-the-docs" # e.g. 192.168.0.2/24
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}
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}
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gateway = "i-did-not-read-the-docs" # e.g. 192.168.0.2
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ssh_public_keys = [
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# Put your public SSH key here
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"ssh-rsa I-did-not-read-the-docs",
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"ssh-rsa I-did-not-read-the-docs 2",
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]
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vsphere_datacenter = "i-did-not-read-the-docs"
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vsphere_compute_cluster = "i-did-not-read-the-docs" # e.g. Cluster
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vsphere_datastore = "i-did-not-read-the-docs" # e.g. ssd-000000
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vsphere_server = "i-did-not-read-the-docs" # e.g. vsphere.server.com
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vsphere_hostname = "i-did-not-read-the-docs" # e.g. 192.168.0.2
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template_name = "i-did-not-read-the-docs" # e.g. ubuntu-bionic-18.04-cloudimg
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116
contrib/terraform/vsphere/main.tf
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116
contrib/terraform/vsphere/main.tf
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@ -0,0 +1,116 @@
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provider "vsphere" {
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# Username and password set through env vars VSPHERE_USER and VSPHERE_PASSWORD
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user = var.vsphere_user
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password = var.vsphere_password
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vsphere_server = var.vsphere_server
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# If you have a self-signed cert
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allow_unverified_ssl = true
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}
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data "vsphere_datacenter" "dc" {
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name = var.vsphere_datacenter
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}
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data "vsphere_datastore" "datastore" {
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name = var.vsphere_datastore
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datacenter_id = data.vsphere_datacenter.dc.id
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}
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data "vsphere_network" "network" {
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name = "VM Network"
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datacenter_id = data.vsphere_datacenter.dc.id
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}
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data "vsphere_host" "host" {
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name = var.vsphere_hostname
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datacenter_id = data.vsphere_datacenter.dc.id
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}
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data "vsphere_virtual_machine" "template" {
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name = var.template_name
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datacenter_id = data.vsphere_datacenter.dc.id
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}
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data "vsphere_compute_cluster" "compute_cluster" {
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name = var.vsphere_compute_cluster
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datacenter_id = data.vsphere_datacenter.dc.id
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}
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resource "vsphere_resource_pool" "pool" {
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name = "${var.prefix}-cluster-pool"
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parent_resource_pool_id = data.vsphere_host.host.resource_pool_id
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}
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module "kubernetes" {
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source = "./modules/kubernetes-cluster"
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prefix = var.prefix
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machines = var.machines
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## Master ##
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master_cores = var.master_cores
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master_memory = var.master_memory
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master_disk_size = var.master_disk_size
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## Worker ##
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worker_cores = var.worker_cores
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worker_memory = var.worker_memory
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worker_disk_size = var.worker_disk_size
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## Global ##
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gateway = var.gateway
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dns_primary = var.dns_primary
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dns_secondary = var.dns_secondary
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pool_id = vsphere_resource_pool.pool.id
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datastore_id = data.vsphere_datastore.datastore.id
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folder = ""
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guest_id = data.vsphere_virtual_machine.template.guest_id
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scsi_type = data.vsphere_virtual_machine.template.scsi_type
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network_id = data.vsphere_network.network.id
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adapter_type = data.vsphere_virtual_machine.template.network_interface_types[0]
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firmware = var.firmware
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hardware_version = var.hardware_version
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disk_thin_provisioned = data.vsphere_virtual_machine.template.disks.0.thin_provisioned
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template_id = data.vsphere_virtual_machine.template.id
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ssh_public_keys = var.ssh_public_keys
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}
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#
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# Generate ansible inventory
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#
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data "template_file" "inventory" {
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template = file("${path.module}/templates/inventory.tpl")
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vars = {
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connection_strings_master = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s etcd_member_name=etcd%d",
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keys(module.kubernetes.master_ip),
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values(module.kubernetes.master_ip),
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range(1, length(module.kubernetes.master_ip) + 1)))
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connection_strings_worker = join("\n", formatlist("%s ansible_user=ubuntu ansible_host=%s",
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keys(module.kubernetes.worker_ip),
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values(module.kubernetes.worker_ip)))
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list_master = join("\n", formatlist("%s",
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keys(module.kubernetes.master_ip)))
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list_worker = join("\n", formatlist("%s",
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keys(module.kubernetes.worker_ip)))
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}
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}
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resource "null_resource" "inventories" {
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provisioner "local-exec" {
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command = "echo '${data.template_file.inventory.rendered}' > ${var.inventory_file}"
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}
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triggers = {
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template = data.template_file.inventory.rendered
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}
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}
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109
contrib/terraform/vsphere/modules/kubernetes-cluster/main.tf
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109
contrib/terraform/vsphere/modules/kubernetes-cluster/main.tf
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@ -0,0 +1,109 @@
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resource "vsphere_virtual_machine" "worker" {
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for_each = {
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for name, machine in var.machines :
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name => machine
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if machine.node_type == "worker"
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}
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name = each.key
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resource_pool_id = var.pool_id
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datastore_id = var.datastore_id
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num_cpus = var.worker_cores
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memory = var.worker_memory
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memory_reservation = var.worker_memory
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guest_id = var.guest_id
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enable_disk_uuid = "true"
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scsi_type = var.scsi_type
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folder = var.folder
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firmware = var.firmware
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hardware_version = var.hardware_version
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wait_for_guest_net_routable = false
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network_interface {
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network_id = var.network_id
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adapter_type = var.adapter_type
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}
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disk {
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label = "disk0"
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size = var.worker_disk_size
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thin_provisioned = var.disk_thin_provisioned
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}
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lifecycle {
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ignore_changes = [disk]
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}
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clone {
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template_uuid = var.template_id
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}
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cdrom {
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client_device = true
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}
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vapp {
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properties = {
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"user-data" = base64encode(templatefile("${path.module}/templates/cloud-init.tmpl", { ip = each.value.ip,
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gw = var.gateway,
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dns = var.dns_primary,
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ssh_public_keys = var.ssh_public_keys}))
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}
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}
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}
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resource "vsphere_virtual_machine" "master" {
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for_each = {
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for name, machine in var.machines :
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name => machine
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if machine.node_type == "master"
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}
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name = each.key
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resource_pool_id = var.pool_id
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datastore_id = var.datastore_id
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num_cpus = var.master_cores
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memory = var.master_memory
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memory_reservation = var.master_memory
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guest_id = var.guest_id
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enable_disk_uuid = "true"
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scsi_type = var.scsi_type
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folder = var.folder
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firmware = var.firmware
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hardware_version = var.hardware_version
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network_interface {
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network_id = var.network_id
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adapter_type = var.adapter_type
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}
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disk {
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label = "disk0"
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size = var.master_disk_size
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thin_provisioned = var.disk_thin_provisioned
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}
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lifecycle {
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ignore_changes = [disk]
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}
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clone {
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template_uuid = var.template_id
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}
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cdrom {
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client_device = true
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}
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vapp {
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properties = {
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"user-data" = base64encode(templatefile("${path.module}/templates/cloud-init.tmpl", { ip = each.value.ip,
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gw = var.gateway,
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dns = var.dns_primary,
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ssh_public_keys = var.ssh_public_keys}))
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}
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}
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}
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@ -0,0 +1,13 @@
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output "master_ip" {
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value = {
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for instance in vsphere_virtual_machine.master :
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instance.name => instance.default_ip_address
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}
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}
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output "worker_ip" {
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value = {
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for instance in vsphere_virtual_machine.worker :
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instance.name => instance.default_ip_address
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}
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}
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@ -0,0 +1,35 @@
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#cloud-config
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ssh_authorized_keys:
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%{ for ssh_public_key in ssh_public_keys ~}
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- ${ssh_public_key}
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%{ endfor ~}
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write_files:
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- path: /etc/netplan/20-internal-network.yaml
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content: |
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network:
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version: 2
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ethernets:
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"lo:0":
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match:
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name: lo
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dhcp4: false
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addresses:
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- 172.17.0.100/32
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- path: /etc/netplan/10-user-network.yaml
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content: |
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network:
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version: 2
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ethernets:
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ens192:
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dhcp4: false #true to use dhcp
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addresses:
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- ${ip}
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gateway4: ${gw} # Set gw here
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nameservers:
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addresses:
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- ${dns} # Set DNS ip address here
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runcmd:
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- netplan apply
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@ -0,0 +1,38 @@
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## Global ##
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variable "prefix" {}
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variable "machines" {
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description = "Cluster machines"
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type = map(object({
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node_type = string
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ip = string
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}))
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}
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variable "gateway" {}
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variable "dns_primary" {}
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variable "dns_secondary" {}
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variable "pool_id" {}
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variable "datastore_id" {}
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variable "guest_id" {}
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variable "scsi_type" {}
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variable "network_id" {}
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variable "adapter_type" {}
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variable "disk_thin_provisioned" {}
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variable "template_id" {}
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variable "firmware" {}
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variable "folder" {}
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variable "ssh_public_keys" {
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type = list(string)
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}
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||||
variable "hardware_version" {}
|
||||
|
||||
## Master ##
|
||||
variable "master_cores" {}
|
||||
variable "master_memory" {}
|
||||
variable "master_disk_size" {}
|
||||
|
||||
## Worker ##
|
||||
variable "worker_cores" {}
|
||||
variable "worker_memory" {}
|
||||
variable "worker_disk_size" {}
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
terraform {
|
||||
required_providers {
|
||||
vsphere = {
|
||||
source = "hashicorp/vsphere"
|
||||
version = ">= 1.24.3"
|
||||
}
|
||||
}
|
||||
required_version = ">= 0.13"
|
||||
}
|
||||
31
contrib/terraform/vsphere/output.tf
Normal file
31
contrib/terraform/vsphere/output.tf
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
output "master_ip_addresses" {
|
||||
value = module.kubernetes.master_ip
|
||||
}
|
||||
|
||||
output "worker_ip_addresses" {
|
||||
value = module.kubernetes.worker_ip
|
||||
}
|
||||
|
||||
output "vsphere_datacenter" {
|
||||
value = var.vsphere_datacenter
|
||||
}
|
||||
|
||||
output "vsphere_server" {
|
||||
value = var.vsphere_server
|
||||
}
|
||||
|
||||
output "vsphere_datastore" {
|
||||
value = var.vsphere_datastore
|
||||
}
|
||||
|
||||
output "vsphere_network" {
|
||||
value = var.network
|
||||
}
|
||||
|
||||
output "vsphere_folder" {
|
||||
value = terraform.workspace
|
||||
}
|
||||
|
||||
output "vsphere_pool" {
|
||||
value = "${terraform.workspace}-cluster-pool"
|
||||
}
|
||||
34
contrib/terraform/vsphere/sample-inventory/cluster.tfvars
Normal file
34
contrib/terraform/vsphere/sample-inventory/cluster.tfvars
Normal file
|
|
@ -0,0 +1,34 @@
|
|||
prefix = "default"
|
||||
|
||||
inventory_file = "inventory.ini"
|
||||
|
||||
machines = {
|
||||
"master-0" : {
|
||||
"node_type" : "master",
|
||||
"ip" : "i-did-not-read-the-docs" # e.g. 192.168.0.2/24
|
||||
},
|
||||
"worker-0" : {
|
||||
"node_type" : "worker",
|
||||
"ip" : "i-did-not-read-the-docs" # e.g. 192.168.0.2/24
|
||||
},
|
||||
"worker-1" : {
|
||||
"node_type" : "worker",
|
||||
"ip" : "i-did-not-read-the-docs" # e.g. 192.168.0.2/24
|
||||
}
|
||||
}
|
||||
|
||||
gateway = "i-did-not-read-the-docs" # e.g. 192.168.0.2
|
||||
|
||||
ssh_public_keys = [
|
||||
# Put your public SSH key here
|
||||
"ssh-rsa I-did-not-read-the-docs",
|
||||
"ssh-rsa I-did-not-read-the-docs 2",
|
||||
]
|
||||
|
||||
vsphere_datacenter = "i-did-not-read-the-docs"
|
||||
vsphere_compute_cluster = "i-did-not-read-the-docs" # e.g. Cluster
|
||||
vsphere_datastore = "i-did-not-read-the-docs" # e.g. ssd-000000
|
||||
vsphere_server = "i-did-not-read-the-docs" # e.g. vsphere.server.com
|
||||
vsphere_hostname = "i-did-not-read-the-docs" # e.g. 192.168.0.2
|
||||
|
||||
template_name = "i-did-not-read-the-docs" # e.g. ubuntu-bionic-18.04-cloudimg
|
||||
1
contrib/terraform/vsphere/sample-inventory/group_vars
Symbolic link
1
contrib/terraform/vsphere/sample-inventory/group_vars
Symbolic link
|
|
@ -0,0 +1 @@
|
|||
../../../../inventory/sample/group_vars
|
||||
17
contrib/terraform/vsphere/templates/inventory.tpl
Normal file
17
contrib/terraform/vsphere/templates/inventory.tpl
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
|
||||
[all]
|
||||
${connection_strings_master}
|
||||
${connection_strings_worker}
|
||||
|
||||
[kube-master]
|
||||
${list_master}
|
||||
|
||||
[etcd]
|
||||
${list_master}
|
||||
|
||||
[kube-node]
|
||||
${list_worker}
|
||||
|
||||
[k8s-cluster:children]
|
||||
kube-master
|
||||
kube-node
|
||||
89
contrib/terraform/vsphere/variables.tf
Normal file
89
contrib/terraform/vsphere/variables.tf
Normal file
|
|
@ -0,0 +1,89 @@
|
|||
## Global ##
|
||||
|
||||
variable "prefix" {
|
||||
default = ""
|
||||
}
|
||||
|
||||
variable "machines" {
|
||||
description = "Cluster machines"
|
||||
type = map(object({
|
||||
node_type = string
|
||||
ip = string
|
||||
}))
|
||||
}
|
||||
|
||||
variable "inventory_file" {
|
||||
default = "inventory.ini"
|
||||
}
|
||||
|
||||
variable "network" {
|
||||
default = "VM Network"
|
||||
}
|
||||
|
||||
variable "gateway" {}
|
||||
|
||||
variable "dns_primary" {
|
||||
default = "8.8.4.4"
|
||||
}
|
||||
|
||||
variable "dns_secondary" {
|
||||
default = "8.8.8.8"
|
||||
}
|
||||
|
||||
variable "vsphere_datacenter" {}
|
||||
|
||||
variable "vsphere_compute_cluster" {}
|
||||
|
||||
variable "vsphere_datastore" {}
|
||||
|
||||
variable "vsphere_user" {}
|
||||
|
||||
variable "vsphere_password" {}
|
||||
|
||||
variable "vsphere_server" {}
|
||||
|
||||
variable "vsphere_hostname" {}
|
||||
|
||||
variable "firmware" {
|
||||
default = "bios"
|
||||
}
|
||||
|
||||
variable "hardware_version" {
|
||||
default = "15"
|
||||
}
|
||||
|
||||
variable "template_name" {
|
||||
default = "ubuntu-focal-20.04-cloudimg"
|
||||
}
|
||||
|
||||
variable "ssh_public_keys" {
|
||||
description = "List of public SSH keys which are injected into the VMs."
|
||||
type = list(string)
|
||||
}
|
||||
|
||||
## Master ##
|
||||
|
||||
variable "master_cores" {
|
||||
default = 4
|
||||
}
|
||||
|
||||
variable "master_memory" {
|
||||
default = 4096
|
||||
}
|
||||
|
||||
variable "master_disk_size" {
|
||||
default = "20"
|
||||
}
|
||||
|
||||
## Worker ##
|
||||
|
||||
variable "worker_cores" {
|
||||
default = 16
|
||||
}
|
||||
|
||||
variable "worker_memory" {
|
||||
default = 8192
|
||||
}
|
||||
variable "worker_disk_size" {
|
||||
default = "100"
|
||||
}
|
||||
15
contrib/terraform/vsphere/versions.tf
Normal file
15
contrib/terraform/vsphere/versions.tf
Normal file
|
|
@ -0,0 +1,15 @@
|
|||
terraform {
|
||||
required_providers {
|
||||
vsphere = {
|
||||
source = "hashicorp/vsphere"
|
||||
version = ">= 1.24.3"
|
||||
}
|
||||
null = {
|
||||
source = "hashicorp/null"
|
||||
}
|
||||
template = {
|
||||
source = "hashicorp/template"
|
||||
}
|
||||
}
|
||||
required_version = ">= 0.13"
|
||||
}
|
||||
Loading…
Reference in a new issue