From 65c1b634e3bce05f1906378d90bd4aa9bd93f869 Mon Sep 17 00:00:00 2001 From: Curtis Wilson Date: Fri, 26 Nov 2021 16:06:19 -0500 Subject: [PATCH] Simplified main. Added AMI module. --- k8s-nodes/.gitignore | 49 ++++++++ k8s-nodes/.terraform.lock.hcl | 57 +++++++++ k8s-nodes/README.md | 12 ++ k8s-nodes/example.tfvars | 38 +++++- k8s-nodes/get-aws-node-status.sh | 4 + k8s-nodes/get-vm-ips.sh | 63 ++++++++-- k8s-nodes/main.tf | 116 ++++++++---------- k8s-nodes/modules/aws-amis/main.tf | 58 +++++++++ k8s-nodes/modules/aws-amis/outputs.tf | 3 + k8s-nodes/modules/cloud-init-config/main.tf | 9 ++ .../modules/cloud-init-config/outputs.tf | 3 + .../modules/cloud-init-config/variables.tf | 22 ++++ k8s-nodes/modules/libvirt-nodes/main.tf | 4 - k8s-nodes/variables.tf | 36 ++++++ 14 files changed, 390 insertions(+), 84 deletions(-) create mode 100644 k8s-nodes/.gitignore create mode 100644 k8s-nodes/.terraform.lock.hcl create mode 100755 k8s-nodes/get-aws-node-status.sh create mode 100644 k8s-nodes/modules/aws-amis/main.tf create mode 100644 k8s-nodes/modules/aws-amis/outputs.tf create mode 100644 k8s-nodes/modules/cloud-init-config/main.tf create mode 100644 k8s-nodes/modules/cloud-init-config/outputs.tf create mode 100644 k8s-nodes/modules/cloud-init-config/variables.tf diff --git a/k8s-nodes/.gitignore b/k8s-nodes/.gitignore new file mode 100644 index 0000000..7103111 --- /dev/null +++ b/k8s-nodes/.gitignore @@ -0,0 +1,49 @@ +################################################################################ +# Pulled from github/gitignore 2021-11-10 commit 1a84870 +################################################################################ + +# Local .terraform directories +**/.terraform/* + +# .tfstate files +*.tfstate +*.tfstate.* + +# Crash log files +crash.log +# Added to original pulled from github/gitignore +crash*.log + +# Exclude all .tfvars files, which are likely to contain sentitive data, such as +# password, private keys, and other secrets. These should not be part of version +# control as they are data points which are potentially sensitive and subject +# to change depending on the environment. +# +*.tfvars + +# Ignore override files as they are usually used to override resources locally and so +# are not checked in +override.tf +override.tf.json +*_override.tf +*_override.tf.json + +# Include override files you do wish to add to version control using negated pattern +# +# !example_override.tf + +# Include tfplan files to ignore the plan output of command: terraform plan -out=tfplan +# example: *tfplan* + +# Ignore CLI configuration files +.terraformrc +terraform.rc + +################################################################################ +# end Pulled from github/gitignore 2021-11-10 commit 1a84870 +################################################################################ + +k8s-key* +STARTHERE +inventory + diff --git a/k8s-nodes/.terraform.lock.hcl b/k8s-nodes/.terraform.lock.hcl new file mode 100644 index 0000000..5f76ac4 --- /dev/null +++ b/k8s-nodes/.terraform.lock.hcl @@ -0,0 +1,57 @@ +# This file is maintained automatically by "terraform init". +# Manual edits may be lost in future updates. + +provider "registry.terraform.io/dmacvicar/libvirt" { + version = "0.6.11" + hashes = [ + "h1:6QzHY/7aNdaaDxJZKygotWnM5uHoS2gs/03CzUCJX60=", + "zh:15300a1c3c294eccade4c8a678412d81602ab041dc0a5aab72fee5425d778e89", + "zh:1605806de0d3b86b7e94b5d04a7ad9b6ac695781f9672ab6002c23caef43b98e", + "zh:21efc5937d89f9ec96bc626d2ce3621c0919b3da97ab63b4e520c37d3f5c7357", + "zh:2c143a6909917fd11191447de4c496f084c7da5200beb9f512791a80a1f33e7c", + "zh:3ca369718cc49feefc3a6ffa795a9055e60de33989a9f1c72b6db16048a181fa", + "zh:71db1d1cf2c06984bba408ad5dc9b4e25285684ee5c530a61583b202cff21b96", + "zh:a67adfc988311d34adcc119500c2ef048a45d632b00bb5a15ea6d3ffdc1c3d1c", + "zh:a83448cbcc194e3b52af9b89b9273a116082d83f2c966035bf8a8c5d5606ca9c", + "zh:a9c5a818dd2606460d4d6f33af7cb387f3e984d631fc233aaec0dda4e0756c2b", + "zh:af3263e66cf9138361d6d7408533edd6de8498e67c88cf0084421ae31fe89054", + "zh:b9596cb26c1e391172472de4ada9b3b0a08e4777e41327db8e021454cc6aae20", + "zh:e28124b9ee0b8c18b6f776eb6523d8935f3072c47cd803ea2f1a06206effaa48", + "zh:edd00638d8c088b8a38e7ab8b9e8ab3bd710f7357d0f6b4a38e0028bd49d8460", + ] +} + +provider "registry.terraform.io/hashicorp/aws" { + version = "3.64.2" + hashes = [ + "h1:oFsgTmmt/eJ8KLo59PSmYu/irUHJiPnQEey0VqaOOck=", + "zh:0b029a2282beabfe410eb2969e18ca773d3473415e442be4dc8ce0eb6d1cd8c5", + "zh:3209de3266a1138f1ccb09f094fdd98b6f55afc06e291db0abe092ec5dbe7640", + "zh:40648266551631cbc15f8a76e80faf300510e3b38c2544d43fc25e37e6802727", + "zh:483c8af92ae70146f2790a70c1a810251e7135aa912b66e769c934eddceebe32", + "zh:4d106d8d415d8df342f3f85e58c35418e6c55e3cb7f02897f832cefac4dca68c", + "zh:972626a6ddb31d5216606d12ab5c30fbf8d51ed2bbe0efcdd7cffa68c1141557", + "zh:a230d55ec52b1695148d40296877ee23e0b302e817154f9b838eb117c87b13fa", + "zh:c95fddfbd7f870db949da0601323e866e0f0fb0d4a93e96725ae5b88029e84d5", + "zh:ea0c7f568074f835f22273c8e7e61e87f5277e32004c72122915fd3c8df49ccc", + "zh:f96d25887e6e2d2ae47659e2c586efea2167995b59a479ae65a02b097da86474", + "zh:fe7502d8e52d3b5ccb2b3c178e7ea894344783093aa71ffb20e978914c976182", + ] +} + +provider "registry.terraform.io/hashicorp/template" { + version = "2.2.0" + hashes = [ + "h1:94qn780bi1qjrbC3uQtjJh3Wkfwd5+tTtJHOb7KTg9w=", + "zh:01702196f0a0492ec07917db7aaa595843d8f171dc195f4c988d2ffca2a06386", + "zh:09aae3da826ba3d7df69efeb25d146a1de0d03e951d35019a0f80e4f58c89b53", + "zh:09ba83c0625b6fe0a954da6fbd0c355ac0b7f07f86c91a2a97849140fea49603", + "zh:0e3a6c8e16f17f19010accd0844187d524580d9fdb0731f675ffcf4afba03d16", + "zh:45f2c594b6f2f34ea663704cc72048b212fe7d16fb4cfd959365fa997228a776", + "zh:77ea3e5a0446784d77114b5e851c970a3dde1e08fa6de38210b8385d7605d451", + "zh:8a154388f3708e3df5a69122a23bdfaf760a523788a5081976b3d5616f7d30ae", + "zh:992843002f2db5a11e626b3fc23dc0c87ad3729b3b3cff08e32ffb3df97edbde", + "zh:ad906f4cebd3ec5e43d5cd6dc8f4c5c9cc3b33d2243c89c5fc18f97f7277b51d", + "zh:c979425ddb256511137ecd093e23283234da0154b7fa8b21c2687182d9aea8b2", + ] +} diff --git a/k8s-nodes/README.md b/k8s-nodes/README.md index b27f538..e495e0a 100644 --- a/k8s-nodes/README.md +++ b/k8s-nodes/README.md @@ -1,3 +1,15 @@ +A Terraform script to create k8s nodes. This script has modules for creating the +nodes on a KVM/QEMU (libvirt) hypervisor or creating the nodes via AWS. + +The modules allow you create N VMs of a specific type. So you could create 1 +master node and 3 worker nodes or you could create 3 Ubuntu VMs and 5 CentOS +VMs, or whatever fits your needs. + +Cloud-Init +---------------------------------------- + +Both the libvirt and aws modules use cloud-init for initial configuration of the +VMs. Dependencies ---------------------------------------- diff --git a/k8s-nodes/example.tfvars b/k8s-nodes/example.tfvars index 33a78d3..9d7f2b9 100644 --- a/k8s-nodes/example.tfvars +++ b/k8s-nodes/example.tfvars @@ -1,3 +1,5 @@ +vm-name-prefix = "ansible-test" + # A CIDR block ending in '/32' equates to a single IP address, '0.0.0.0/0' # equates to any ip address. admin-ips = [ "8.8.8.8/32", "0.0.0.0/0" ] @@ -5,12 +7,13 @@ admin-ips = [ "8.8.8.8/32", "0.0.0.0/0" ] disk-image-dir = "/path/to/disk/pool/" libvirt-connection-url = "qemu+ssh://@/system" -master-nodes = 1 -worker-nodes = 2 - node-memory = 2048 node-vcpus = 2 +################################################################################ +# AWS EC2 instance types +################################################################################ + # 1 GiB, 1 vcpu, only one that is free. # This one won't work with k8s because it requires at least 2 vcpus. aws-ec2-instance-type = "t2.micro" @@ -18,14 +21,43 @@ aws-ec2-instance-type = "t2.micro" # 4 GiB, 2 vcpus # aws-ec2-instnce-type = "t2.medium" +################################################################################ +# AWS images (AMIs) +################################################################################ + +## Amazon Linux 2 # AWS Amazon Linux 2 AMI (HVM), SSD Volume Type - Oregon - 2021.11.11 - free # base-image = "ami-00be885d550dcee43" # AWS Amazon Linux 2 AMI (HVM), SSD Volume Type - us-east-2 - 2021.11.12 - free base-image = "ami-0dd0ccab7e2801812" + +## CentOS +# CentOS 7.9.2009 x86_64 - us-east-2 - 2021-11-15 +# base-image = "ami-00f8e2c955f7ffa9b" +# CentOS 8.4.2105 x86_64 - us-east-2 - 2021-11015 +# base-image = "ami-057cacbfbbb471bb3" + +## Ubuntu +# Ubuntu Server 20.04 LTS (HVM), SSD Volume Type +# us-east-2 - (64-bit x86) - 2021.11.12 - free +# base-image = "ami-0629230e074c580f2" + +## Arch linux +# arch-linux-lts-hvm-2021.06.02.x86_64-ebs - us-east-2 +# base-image = "ami-02653f06de985e3ba" + +################################################################################ +# libvirt images +################################################################################ + # base-image = "https://cloud-images.ubuntu.com/releases/focal/release/ubuntu-20.04-server-cloudimg-amd64-disk-kvm.img" # From https://cloud.centos.org/centos/7/images/ from 2020-11-12 06:52 # base-image = "https://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-2009.qcow2" +################################################################################ +# Keys/Passwords +################################################################################ + # Password hash created with: # python3 -c 'import crypt; print(crypt.crypt("linux", crypt.mksalt(crypt.METHOD_SHA512)))' # where "linux" is the password. diff --git a/k8s-nodes/get-aws-node-status.sh b/k8s-nodes/get-aws-node-status.sh new file mode 100755 index 0000000..aad14b0 --- /dev/null +++ b/k8s-nodes/get-aws-node-status.sh @@ -0,0 +1,4 @@ +#!/bin/sh + +aws ec2 describe-instance-status | \ + jq '.InstanceStatuses[] | {id: .InstanceId, instance_status: .InstanceStatus.Status, system_status: .SystemStatus.Status}' diff --git a/k8s-nodes/get-vm-ips.sh b/k8s-nodes/get-vm-ips.sh index 25e36fe..230b5cf 100755 --- a/k8s-nodes/get-vm-ips.sh +++ b/k8s-nodes/get-vm-ips.sh @@ -1,19 +1,60 @@ #!/bin/sh +# This script will create environment variables for all of the output IPs. It +# will also create a `ANSIBLE_INV` variable that will be a comma separated +# string of all the IPs. A anisble inventory file called "inventory is created +# as well. +# # Use eval $(./get-vm-ips.sh) to set env vars for ips. terraform refresh > /dev/null -IPS_JSON="$(terraform show -json | jq '.values.outputs')" +# All terraform outputs in json format. +OUTPUTS_JSON="$( + terraform show -json | \ + jq '.values.outputs' | \ + sed 's/-/_/g')" +# Just the IP address outputs in json format. Also all '-' characters are +# replaced by '_' becuase '-' causes jq some problems. +IPS_JSON="$( + echo $OUTPUTS_JSON | \ + jq 'to_entries | .[] | select(.key | contains("ips"))')" +# An array of all node "types" +NODE_TYPE_ARRAY="$( + echo $IPS_JSON | \ + jq '.value.value | to_entries | .[] | .key' | \ + sed 's/"//g' | \ + sed -z 's/\n/ /g;s/ $/\n/g')" -echo $IPS_JSON | \ - jq '."master-ips".value[]' | \ - nl -v 0 | \ - awk '{print "export MASTER" $1 "=" $2}' | \ - sed 's/"//g' +# Loop over all the node types and create an export line for each IP. +VM_IP_EXPORTS="$( + for TYPE in $NODE_TYPE_ARRAY; do -echo $IPS_JSON | \ - jq '."worker-ips".value[]' | \ - nl -v 0 | \ - awk '{print "export WORKER" $1 "=" $2}' | \ - sed 's/"//g' + # Convert type, converts "master-ips" to "MASTER" + TYPE_UPPER="$(echo ${TYPE^^} | sed s/_.*$//g)" + echo "$IPS_JSON" | \ + jq '.value.value.'"$TYPE"'[]' | \ + # Add line numbers starting with 0. + nl -v 0 | \ + # Print an export string with a type placeholder "__TYPE__". + awk '{print "export __TYPE___" $1 "=" $2}' | \ + sed s/__TYPE__/$TYPE_UPPER/g + done)" + +ANSIBLE_INV="$( + echo "$VM_IP_EXPORTS" | \ + sed 's/"//g' | \ + sed 's/^.*=//g' | \ + sed -z 's/\n/,/g;s/,$/\n/g')" + +# Create an inventory file for ansible. +echo "[k8s_nodes]" > inventory +echo $VM_IP_EXPORTS | \ + sed 's/"//g' | \ + sed 's/export //g' | \ + sed 's/ /\n/g' | \ + sed 's/^\(.*\)\(=.*\)$/\1 ansible_host\2/g' \ + >> inventory + +echo $VM_IP_EXPORTS | sed 's/" /"\n/g' +echo export ANSIBLE_INV=$ANSIBLE_INV diff --git a/k8s-nodes/main.tf b/k8s-nodes/main.tf index 20f8bfc..caa213c 100644 --- a/k8s-nodes/main.tf +++ b/k8s-nodes/main.tf @@ -1,35 +1,38 @@ terraform { - required_version = ">= 0.13" + required_version = ">= 1.0.8" required_providers { libvirt = { - source = "dmacvicar/libvirt" + source = "dmacvicar/libvirt" version = "0.6.11" } } } +locals { + nodes-config = { + "master" = { + base-image = var.amzn2-ami + num = 1 + }, + "worker" = { + base-image = var.amzn2-ami + num = 2 + } + } +} + ################################################################################ # cloud-init ################################################################################ -data "template_file" "master-node-user-datas" { - template = file("${path.module}/cloud_init.cfg") - vars = { - admin-passwd = "${var.root-admin-passwd}" - admin-pub-key = "${var.root-admin-pub-key}" - hostname = "${var.vm-name-prefix}-master-${count.index}" - } - count = var.master-nodes -} - -data "template_file" "worker-node-user-datas" { - template = file("${path.module}/cloud_init.cfg") - vars = { - admin-passwd = "${var.root-admin-passwd}" - admin-pub-key = "${var.root-admin-pub-key}" - hostname = "${var.vm-name-prefix}-worker-${count.index}" - } - count = var.worker-nodes +module "cloud-init-config" { + for_each = local.nodes-config + source = "./modules/cloud-init-config" + cloud-init-template = "${path.module}/cloud_init.cfg" + hostname-prefix = "${var.vm-name-prefix}-${each.key}" + num = each.value.num + root-admin-passwd = var.root-admin-passwd + root-admin-pub-key = var.root-admin-pub-key } ################################################################################ @@ -42,12 +45,21 @@ provider "aws" { region = "us-east-2" } +# This module will grab the latest ami for a variety of distros. Uncomment to +# get a list of the latest AMIs for our supported distros. +# module "aws-amis" { +# source = "./modules/aws-amis" +# } +# output "amis" { +# value = module.aws-amis.amis +# } + module "aws-network" { - source = "./modules/aws-network" - name-prefix = var.vm-name-prefix - vpc-cidr-block = var.aws-vpc-cidr-block + source = "./modules/aws-network" + name-prefix = var.vm-name-prefix + vpc-cidr-block = var.aws-vpc-cidr-block subnet-cidr-block = var.aws-subnet-cidr-block - admin-ips = var.admin-ips + admin-ips = var.admin-ips } # This key pair is not actually used. Keys are added to the nodes via cloud-init @@ -60,26 +72,16 @@ resource "aws_key_pair" "key" { } } -module "master-nodes" { - source = "./modules/aws-nodes" - ami = var.base-image - ec2-instance-type = var.aws-ec2-instance-type - subnet-id = module.aws-network.subnet.id - security-group-ids = [module.aws-network.default-security-group.id] - user-datas = data.template_file.master-node-user-datas - num-nodes = var.master-nodes - name-prefix = "${var.vm-name-prefix}-master" -} - -module "worker-nodes" { +module "nodes" { + for_each = local.nodes-config source = "./modules/aws-nodes" - ami = var.base-image + ami = each.value.base-image ec2-instance-type = var.aws-ec2-instance-type subnet-id = module.aws-network.subnet.id security-group-ids = [module.aws-network.default-security-group.id] - user-datas = data.template_file.worker-node-user-datas - num-nodes = var.worker-nodes - name-prefix = "${var.vm-name-prefix}-worker" + user-datas = lookup(module.cloud-init-config, each.key, null).user-datas + num-nodes = each.value.num + name-prefix = "${var.vm-name-prefix}-${each.key}" } ################################################################################ @@ -96,32 +98,19 @@ module "worker-nodes" { # uri = var.libvirt-connection-url # } # -# module "master-nodes" { -# source = "./modules/libvirt-nodes" -# pool-name = libvirt_pool.images.name -# name-prefix = "${var.vm-name-prefix}-master" -# num-nodes = var.master-nodes -# node-memory = var.node-memory -# node-vcpus = var.node-vcpus -# base-image = var.base-image -# root-admin-passwd = var.root-admin-passwd -# root-admin-pub-key = var.root-admin-pub-key -# libvirt-connection-url = var.libvirt-connection-url -# user-datas = data.template_file.master-node-user-datas -# } -# -# module "worker-nodes" { +# module "nodes" { +# for_each = local.nodes-config # source = "./modules/libvirt-nodes" # pool-name = libvirt_pool.images.name -# name-prefix = "${var.vm-name-prefix}-worker" -# num-nodes = var.worker-nodes +# name-prefix = "${var.vm-name-prefix}-${each.key}" +# num-nodes = each.value.num # node-memory = var.node-memory # node-vcpus = var.node-vcpus -# base-image = var.base-image +# base-image = each.value.base-image # root-admin-passwd = var.root-admin-passwd # root-admin-pub-key = var.root-admin-pub-key # libvirt-connection-url = var.libvirt-connection-url -# user-datas = data.template_file.worker-node-user-datas +# user-datas = lookup(module.cloud-init-config, each.key, null).user-datas # } # # resource "libvirt_pool" "images" { @@ -134,11 +123,6 @@ module "worker-nodes" { # end libvirt ################################################################################ -# TODO REM move to other file? -output "master-ips" { - value = module.master-nodes.ips -} - -output "worker-ips" { - value = module.worker-nodes.ips +output "ips" { + value = { for type, node in module.nodes : type => node.ips } } diff --git a/k8s-nodes/modules/aws-amis/main.tf b/k8s-nodes/modules/aws-amis/main.tf new file mode 100644 index 0000000..1949653 --- /dev/null +++ b/k8s-nodes/modules/aws-amis/main.tf @@ -0,0 +1,58 @@ +locals { + amis = { + amzn2 = { + owner-id = "137112412989" + name = "amzn2-ami-hvm-2*x86_64-gp2" + }, + ubuntu = { + owner-id = "099720109477" + name = "ubuntu/images/hvm-ssd/ubuntu-focal-20.04-amd64-server-*" + }, + centos7 = { + owner-id = "125523088429" + name = "CentOS 7.*x86_64" + }, + centos8 = { + owner-id = "125523088429" + name = "CentOS 8.*x86_64" + }, + arch = { + owner-id = "093273469852" + name = "arch-linux-lts-hvm*x86_64-ebs" + }, + rhel7 = { + owner-id = "309956199498" + name = "RHEL-7.*HVM*x86_64*GP2" + }, + rhel8 = { + owner-id = "309956199498" + name = "RHEL-8.*HVM*x86_64*GP2" + } + } +} + +data "aws_ami" "amis" { + for_each = local.amis + most_recent = true + owners = [each.value.owner-id] + + filter { + name = "name" + values = [each.value.name] + } + + filter { + name = "virtualization-type" + values = ["hvm"] + } + + filter { + name = "architecture" + values = ["x86_64"] + } + + filter { + name = "root-device-type" + values = ["ebs"] + } +} diff --git a/k8s-nodes/modules/aws-amis/outputs.tf b/k8s-nodes/modules/aws-amis/outputs.tf new file mode 100644 index 0000000..3174fd9 --- /dev/null +++ b/k8s-nodes/modules/aws-amis/outputs.tf @@ -0,0 +1,3 @@ +output "amis" { + value = tomap({ for type, ami in data.aws_ami.amis : type => ami.id }) +} diff --git a/k8s-nodes/modules/cloud-init-config/main.tf b/k8s-nodes/modules/cloud-init-config/main.tf new file mode 100644 index 0000000..e1c75c4 --- /dev/null +++ b/k8s-nodes/modules/cloud-init-config/main.tf @@ -0,0 +1,9 @@ +data "template_file" "user-datas" { + template = file("${var.cloud-init-template}") + vars = { + admin-passwd = "${var.root-admin-passwd}" + admin-pub-key = "${var.root-admin-pub-key}" + hostname = "${var.hostname-prefix}-${count.index}" + } + count = var.num +} diff --git a/k8s-nodes/modules/cloud-init-config/outputs.tf b/k8s-nodes/modules/cloud-init-config/outputs.tf new file mode 100644 index 0000000..15415d4 --- /dev/null +++ b/k8s-nodes/modules/cloud-init-config/outputs.tf @@ -0,0 +1,3 @@ +output "user-datas" { + value = data.template_file.user-datas +} diff --git a/k8s-nodes/modules/cloud-init-config/variables.tf b/k8s-nodes/modules/cloud-init-config/variables.tf new file mode 100644 index 0000000..fc4f437 --- /dev/null +++ b/k8s-nodes/modules/cloud-init-config/variables.tf @@ -0,0 +1,22 @@ +variable "cloud-init-template" { + default = "../../cloud_init.cfg" + description = "The path to the cloud-init config template." + type = string +} + +variable "hostname-prefix" { + description = "This prefix wil be applied as a prefix for the hostnames." +} + +variable "num" { + description = "The number of user-datas to create with these parameters." +} + +variable "root-admin-passwd" { + description = "This value will be substituted for any occurence of 'admin-password' in the cloud-init config template." +} + +variable "root-admin-pub-key" { + description = "This value will be substituted for any occurence of 'admin-pub-key' in the cloud-init config template." +} + diff --git a/k8s-nodes/modules/libvirt-nodes/main.tf b/k8s-nodes/modules/libvirt-nodes/main.tf index 9b792d0..cbd0dac 100644 --- a/k8s-nodes/modules/libvirt-nodes/main.tf +++ b/k8s-nodes/modules/libvirt-nodes/main.tf @@ -8,10 +8,6 @@ terraform { } } -provider "libvirt" { - uri = var.libvirt-connection-url -} - resource "libvirt_volume" "node-images" { name = "${var.name-prefix}-${count.index}" pool = var.pool-name diff --git a/k8s-nodes/variables.tf b/k8s-nodes/variables.tf index 52cf7a2..3719268 100644 --- a/k8s-nodes/variables.tf +++ b/k8s-nodes/variables.tf @@ -71,3 +71,39 @@ variable "vm-name-prefix" { default = "k8s-tf" description = "This prefix will appear before all VM names and hostnames, ie. k8s-tf-master-0." } + +################################################################################ +# AWS AMI vars +# These variables are really mor like constants. Using variables improves +# readability. The defaults are manually updated. Use the aws-amis module to get +# the latest for each distro. +################################################################################ + +variable "amzn2-ami" { + default = "ami-0dd0ccab7e2801812" + description = "The AMI to use for Amazon Linux 2." +} +variable "ubuntu-ami" { + default = "ami-06c7d6c0987eaa46c" + description = "The AMI to use for Ubuntu." +} +variable "centos7-ami" { + default = "ami-00f8e2c955f7ffa9b" + description = "The AMI to use for CentOS 7." +} +variable "centos8-ami" { + default = "ami-057cacbfbbb471bb3" + description = "The AMI to use for CentOS 8." +} +variable "arch-ami" { + default = "ami-02653f06de985e3ba" + description = "The AMI to use for Arch Linux." +} +variable "rhel7-ami" { + default = "ami-0a509b3c2a4d05b3f" + description = "The AMI to use for RHEL 7." +} +variable "rhel8-ami" { + default = "ami-0d871ca8a77af2948" + description = "The AMI to use for RHEL 8." +}