updated terraform examples

terraform/demo4-scale-out-lb/get-terraform.sh

@@ -1,3 +0,0 @@
-#!/bin/bash
-wget https://releases.hashicorp.com/terraform/0.14.10/terraform_0.14.10_linux_amd64.zip -O terraform_0.14.10_linux_amd64.zip
-unzip -o terraform_0.14.10_linux_amd64.zip

terraform/lab1/get-terraform.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+wget https://releases.hashicorp.com/terraform/1.1.3/terraform_1.1.3_linux_amd64.zip -O terraform_1.1.3_linux_amd64.zip
+unzip -o terraform_1.1.3_linux_amd64.zip

terraform/lab1/lab1.tf

@@ -0,0 +1,178 @@
+# Define CloudComp group number
+variable "group_number" {
+  type = string
+  default = "20"
+}
+
+## OpenStack credentials can be used in a more secure way by using
+## cloud.yaml from https://private-cloud.informatik.hs-fulda.de/project/api_access/clouds.yaml/
+
+# or by using env vars exported from openrc here,
+# e.g., using 'export TF_VAR_os_password=$OS_PASSWORD'
+
+# Define OpenStack credentials, project config etc.
+locals {
+  auth_url      = "https://private-cloud.informatik.hs-fulda.de:5000/v3"
+  user_name     = "CloudComp${var.group_number}"
+  user_password = "<password of your group here, private-cloud is only reachable via vpn>"
+  tenant_name   = "CloudComp${var.group_number}"
+  #network_name  = "CloudComp${var.group_number}-net"
+  router_name   = "CloudComp${var.group_number}-router"
+  image_name    = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+  flavor_name   = "m1.small"
+  region_name   = "RegionOne"
+}
+
+# Define OpenStack provider
+terraform {
+required_version = ">= 0.14.0"
+  required_providers {
+    openstack = {
+      source  = "terraform-provider-openstack/openstack"
+      version = ">= 1.46.0"
+    }
+  }
+}
+
+# Configure the OpenStack Provider
+provider "openstack" {
+  user_name   = local.user_name
+  tenant_name = local.tenant_name
+  password    = local.user_password
+  auth_url    = local.auth_url
+  region      = local.region_name
+  use_octavia = true
+}
+
+
+
+###########################################################################
+#
+# create keypair
+#
+###########################################################################
+
+# import keypair, if public_key is not specified, create new keypair to use
+resource "openstack_compute_keypair_v2" "terraform-keypair" {
+  name       = "my-terraform-pubkey"
+  #public_key = file("~/.ssh/id_rsa.pub")
+}
+
+
+
+###########################################################################
+#
+# create security group
+#
+###########################################################################
+
+resource "openstack_networking_secgroup_v2" "terraform-secgroup" {
+  name        = "my-terraform-secgroup"
+  description = "for terraform instances"
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-http" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 80
+  port_range_max    = 80
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-ssh" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 22
+  port_range_max    = 22
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-secgroup.id
+}
+
+
+###########################################################################
+#
+# create network
+#
+###########################################################################
+
+resource "openstack_networking_network_v2" "terraform-network-1" {
+  name           = "my-terraform-network-1"
+  admin_state_up = "true"
+}
+
+resource "openstack_networking_subnet_v2" "terraform-subnet-1" {
+  name       = "my-terraform-subnet-1"
+  network_id = openstack_networking_network_v2.terraform-network-1.id
+  cidr       = "192.168.255.0/24"
+  ip_version = 4
+}
+
+data "openstack_networking_router_v2" "router-1" {
+  name = local.router_name
+}
+
+resource "openstack_networking_router_interface_v2" "router_interface_1" {
+  router_id = data.openstack_networking_router_v2.router-1.id
+  subnet_id = openstack_networking_subnet_v2.terraform-subnet-1.id
+}
+
+
+
+###########################################################################
+#
+# create instances
+#
+###########################################################################
+
+resource "openstack_compute_instance_v2" "terraform-instance-1" {
+  name              = "my-terraform-instance-1"
+  image_name        = local.image_name
+  flavor_name       = local.flavor_name
+  key_pair          = openstack_compute_keypair_v2.terraform-keypair.name
+  security_groups   = [openstack_networking_secgroup_v2.terraform-secgroup.name]
+
+  depends_on = [openstack_networking_subnet_v2.terraform-subnet-1]
+
+  network {
+    uuid = openstack_networking_network_v2.terraform-network-1.id
+  }
+
+  user_data = <<-EOF
+    #!/bin/bash
+    apt-get update
+    apt-get -y install apache2
+    rm /var/www/html/index.html
+    cat > /var/www/html/index.html << INNEREOF
+    <!DOCTYPE html>
+    <html>
+      <body>
+        <h1>It works!</h1>
+        <p>hostname</p>
+      </body>
+    </html>
+    INNEREOF
+    sed -i "s/hostname/terraform-instance-1/" /var/www/html/index.html
+    sed -i "1s/$/ terraform-instance-1/" /etc/hosts
+  EOF
+}
+
+###########################################################################
+#
+# assign floating ip to instance
+#
+###########################################################################
+resource "openstack_networking_floatingip_v2" "fip_1" {
+  pool    = "public1"
+}
+
+resource "openstack_compute_floatingip_associate_v2" "fip_1_assoc" {
+  floating_ip = openstack_networking_floatingip_v2.fip_1.address
+  instance_id = openstack_compute_instance_v2.terraform-instance-1.id
+}
+
+output "vip_addr" {
+  value = openstack_networking_floatingip_v2.fip_1
+}

terraform/lab4-scale-out-lb/get-terraform.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+wget https://releases.hashicorp.com/terraform/1.1.3/terraform_1.1.3_linux_amd64.zip -O terraform_1.1.3_linux_amd64.zip
+unzip -o terraform_1.1.3_linux_amd64.zip

terraform/lab4-scale-out-lb/lab4.tf

@@ -0,0 +1,259 @@
+# Define CloudComp group number
+variable "group_number" {
+  type = string
+  default = "20"
+}
+
+## OpenStack credentials can be used in a more secure way by using
+## cloud.yaml from https://private-cloud.informatik.hs-fulda.de/project/api_access/clouds.yaml/
+
+# or by using env vars exported from openrc here,
+# e.g., using 'export TF_VAR_os_password=$OS_PASSWORD'
+
+# Define OpenStack credentials, project config etc.
+locals {
+  auth_url      = "https://private-cloud.informatik.hs-fulda.de:5000/v3"
+  user_name     = "CloudComp${var.group_number}"
+  user_password = "<password of your group here, private-cloud is only reachable via vpn>"
+  tenant_name   = "CloudComp${var.group_number}"
+  #network_name  = "CloudComp${var.group_number}-net"
+  router_name   = "CloudComp${var.group_number}-router"
+  image_name    = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+  flavor_name   = "m1.small"
+  region_name   = "RegionOne"
+}
+
+# Define OpenStack provider
+terraform {
+required_version = ">= 0.14.0"
+  required_providers {
+    openstack = {
+      source  = "terraform-provider-openstack/openstack"
+      version = ">= 1.46.0"
+    }
+  }
+}
+
+# Configure the OpenStack Provider
+provider "openstack" {
+  user_name   = local.user_name
+  tenant_name = local.tenant_name
+  password    = local.user_password
+  auth_url    = local.auth_url
+  region      = local.region_name
+  use_octavia = true
+}
+
+
+
+###########################################################################
+#
+# create keypair
+#
+###########################################################################
+
+# import keypair, if public_key is not specified, create new keypair to use
+resource "openstack_compute_keypair_v2" "terraform-keypair" {
+  name       = "my-terraform-pubkey"
+  #public_key = file("~/.ssh/id_rsa.pub")
+}
+
+
+
+###########################################################################
+#
+# create security group
+#
+###########################################################################
+
+resource "openstack_networking_secgroup_v2" "terraform-secgroup" {
+  name        = "my-terraform-secgroup"
+  description = "for terraform instances"
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-http" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 80
+  port_range_max    = 80
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-ssh" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 22
+  port_range_max    = 22
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-secgroup.id
+}
+
+
+###########################################################################
+#
+# create network
+#
+###########################################################################
+
+resource "openstack_networking_network_v2" "terraform-network-1" {
+  name           = "my-terraform-network-1"
+  admin_state_up = "true"
+}
+
+resource "openstack_networking_subnet_v2" "terraform-subnet-1" {
+  name       = "my-terraform-subnet-1"
+  network_id = openstack_networking_network_v2.terraform-network-1.id
+  cidr       = "192.168.255.0/24"
+  ip_version = 4
+}
+
+data "openstack_networking_router_v2" "router-1" {
+  name = local.router_name
+}
+
+resource "openstack_networking_router_interface_v2" "router_interface_1" {
+  router_id = data.openstack_networking_router_v2.router-1.id
+  subnet_id = openstack_networking_subnet_v2.terraform-subnet-1.id
+}
+
+
+
+###########################################################################
+#
+# create instances
+#
+###########################################################################
+
+resource "openstack_compute_instance_v2" "terraform-instance-1" {
+  name              = "my-terraform-instance-1"
+  image_name        = local.image_name
+  flavor_name       = local.flavor_name
+  key_pair          = openstack_compute_keypair_v2.terraform-keypair.name
+  security_groups   = [openstack_networking_secgroup_v2.terraform-secgroup.name]
+
+  depends_on = [openstack_networking_subnet_v2.terraform-subnet-1]
+
+  network {
+    uuid = openstack_networking_network_v2.terraform-network-1.id
+  }
+
+  user_data = <<-EOF
+    #!/bin/bash
+    apt-get update
+    apt-get -y install apache2
+    rm /var/www/html/index.html
+    cat > /var/www/html/index.html << INNEREOF
+    <!DOCTYPE html>
+    <html>
+      <body>
+        <h1>It works!</h1>
+        <p>hostname</p>
+      </body>
+    </html>
+    INNEREOF
+    sed -i "s/hostname/terraform-instance-1/" /var/www/html/index.html
+    sed -i "1s/$/ terraform-instance-1/" /etc/hosts
+  EOF
+}
+
+resource "openstack_compute_instance_v2" "terraform-instance-2" {
+  name            = "my-terraform-instance-2"
+  image_name      = local.image_name
+  flavor_name     = local.flavor_name
+  key_pair        = openstack_compute_keypair_v2.terraform-keypair.name
+  security_groups = [openstack_networking_secgroup_v2.terraform-secgroup.id]
+
+  depends_on = [openstack_networking_subnet_v2.terraform-subnet-1]
+
+  network {
+    uuid = openstack_networking_network_v2.terraform-network-1.id
+  }
+
+  user_data = <<-EOF
+    #!/bin/bash
+    apt-get update
+    apt-get -y install apache2
+    rm /var/www/html/index.html
+    cat > /var/www/html/index.html << INNEREOF
+    <!DOCTYPE html>
+    <html>
+      <body>
+        <h1>It works!</h1>
+        <p>hostname</p>
+      </body>
+    </html>
+    INNEREOF
+    sed -i "s/hostname/terraform-instance-2/" /var/www/html/index.html
+    sed -i "1s/$/ terraform-instance-2/" /etc/hosts
+  EOF
+}
+
+
+
+###########################################################################
+#
+# create load balancer
+#
+###########################################################################
+resource "openstack_lb_loadbalancer_v2" "lb_1" {
+  vip_subnet_id = openstack_networking_subnet_v2.terraform-subnet-1.id
+}
+
+resource "openstack_lb_listener_v2" "listener_1" {
+  protocol        = "HTTP"
+  protocol_port   = 80
+  loadbalancer_id = openstack_lb_loadbalancer_v2.lb_1.id
+  connection_limit = 1024
+}
+
+resource "openstack_lb_pool_v2" "pool_1" {
+  protocol    = "HTTP"
+  lb_method   = "ROUND_ROBIN"
+  listener_id = openstack_lb_listener_v2.listener_1.id
+}
+
+resource "openstack_lb_members_v2" "members_1" {
+  pool_id = openstack_lb_pool_v2.pool_1.id
+
+  member {
+    address       = openstack_compute_instance_v2.terraform-instance-1.access_ip_v4
+    protocol_port = 80
+  }
+
+  member {
+    address       = openstack_compute_instance_v2.terraform-instance-2.access_ip_v4
+    protocol_port = 80
+  }
+}
+
+resource "openstack_lb_monitor_v2" "monitor_1" {
+  pool_id        = openstack_lb_pool_v2.pool_1.id
+  type           = "HTTP"
+  delay          = 5
+  timeout        = 5
+  max_retries    = 3
+  http_method    = "GET"
+  url_path       = "/"
+  expected_codes = 200
+
+  depends_on = [openstack_lb_loadbalancer_v2.lb_1, openstack_lb_listener_v2.listener_1, openstack_lb_pool_v2.pool_1, openstack_lb_members_v2.members_1 ]
+}
+
+
+
+###########################################################################
+#
+# assign floating ip to load balancer
+#
+###########################################################################
+resource "openstack_networking_floatingip_v2" "fip_1" {
+  pool    = "public1"
+  port_id = openstack_lb_loadbalancer_v2.lb_1.vip_port_id
+}
+
+output "loadbalancer_vip_addr" {
+  value = openstack_networking_floatingip_v2.fip_1
+}

terraform/lab4-scale-out-lb/run-terraform.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+
+# initialization of terraform state and download openstack plugin/dependencies
+./terraform init
+
+# show what will done
+./terraform plan
+
+# let terraform create the resources specified in .tf file in same directory
+./terraform apply
+
+# you can also use "terraform apply -auto-approve" to prevent terraform from asking back whether it should proceed
+
+# among the benefits of terraform, is that is deploys the resources rather quick. It identifies dependencies and
+# deploys independent resources in parallel.
+# "terraform graph" creates a dependency graph of the resource specified in the .tf file
+# another benefit of terraform is, that it does the heavy lifting to support the APIs of multiple cloud
+# providers and supports way more features and cloud services than, e.g., libcloud, hence it's quite popular
+#
+# among the drawbacks however is, that it comes with its own definition language and does not offer the full
+# flexibility of a programming language. In this regard, libcloud, boto3, openstack-sdk etc. are way more flexible
+#
+# we discuss different cloud service deployment solutions and their pros/cons in the course

terraform/lab4-scale-out-lb/stop-terraform.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+# let terraform remove the resources specified in .tf file in same directory
+./terraform destroy
+
+# you can also use "terraform destroy -auto-approve" to prevent terraform from asking back whether it should proceed

terraform/rancher-terraform/example-templates/cluster-options-example.yml

@@ -0,0 +1,179 @@
+# 
+# Cluster Config
+# 
+docker_root_dir: /var/lib/docker
+enable_cluster_alerting: false
+enable_cluster_monitoring: false
+enable_network_policy: false
+local_cluster_auth_endpoint:
+  enabled: true
+name: openstack-rke
+# 
+# Rancher Config
+# 
+rancher_kubernetes_engine_config:
+#####################################################################
+#
+# Config for OpenStack @ NetLab Hochschule Fulda Start
+#
+# Paste the following section into rancher_kubernetes_engine_config
+# be sure to use correct indention, if in doubt, use YAML syntax
+# checker
+#
+# You need to replace tenant-id with your project id, you can see
+# the id, e.g., in the OpenStack Web Interface (Horizon) here:
+#   - https://private-cloud.informatik.hs-fulda.de/project/api_access/view_credentials/
+#
+# Replace floating-network-id with the id of the network "public1".
+# Click in network "public1" here:
+#   - https://private-cloud.informatik.hs-fulda.de/project/networks/
+# and use the value shown for ID.
+#
+# Replace subnet-id with the id of the subnet (not network!) that you
+# use for your RKE node instances. If you use network
+# "my-terraform-rancher-network-1" you can got to:
+#   - https://private-cloud.informatik.hs-fulda.de/project/networks/
+# click on my-terraform-rancher-network-1, then click on its subnet
+# my-terraform-rancher-subnet-1, and use the shown ID of the subnet.
+#
+# Replace the router-id with the id of your router. Go to:
+#   - https://private-cloud.informatik.hs-fulda.de/project/routers/
+# click on the router you use for the network of your RKE instances
+# and use the shown ID of this router.
+#
+# Replace password with the password of your groups' OpenStack
+# account
+#
+# You can also see other config options in RKE docu here:
+# https://rancher.com/docs/rke/latest/en/config-options/cloud-providers/openstack/
+#
+#####################################################################
+  cloud_provider:
+    name: openstack
+    openstackCloudProvider:
+      block_storage:
+        ignore-volume-az: true
+        trust-device-path: false
+      global:
+        auth-url: 'https://private-cloud.informatik.hs-fulda.de:5000'
+        domain-name: Default
+        tenant-id: <id of your project here>
+        username: IntServ19
+        password: <your password here>
+      load_balancer:
+        create-monitor: false
+        floating-network-id: <id of network public1>
+        lb-version: v2
+        manage-security-groups: true
+        monitor-max-retries: 0
+        subnet-id: <id of the subnet your use for rke instances>
+        use-octavia: true
+      metadata:
+        request-timeout: 0
+      route:
+        router-id: <id of the router you use for the rke instances>
+#####################################################################
+#
+# Config for OpenStack @ NetLab Hochschule Fulda End
+#
+#####################################################################
+  addon_job_timeout: 45
+  authentication:
+    strategy: x509
+  dns:
+    nodelocal:
+      ip_address: ''
+      node_selector: null
+      update_strategy: {}
+  enable_cri_dockerd: false
+  ignore_docker_version: true
+# 
+# # Currently only nginx ingress provider is supported.
+# # To disable ingress controller, set `provider: none`
+# # To enable ingress on specific nodes, use the node_selector, eg:
+#    provider: nginx
+#    node_selector:
+#      app: ingress
+# 
+  ingress:
+    default_backend: false
+    default_ingress_class: true
+    http_port: 0
+    https_port: 0
+    provider: nginx
+  kubernetes_version: v1.21.8-rancher1-1
+  monitoring:
+    provider: metrics-server
+    replicas: 1
+# 
+#   If you are using calico on AWS
+# 
+#    network:
+#      plugin: calico
+#      calico_network_provider:
+#        cloud_provider: aws
+# 
+# # To specify flannel interface
+# 
+#    network:
+#      plugin: flannel
+#      flannel_network_provider:
+#      iface: eth1
+# 
+# # To specify flannel interface for canal plugin
+# 
+#    network:
+#      plugin: canal
+#      canal_network_provider:
+#        iface: eth1
+# 
+  network:
+    mtu: 0
+    options:
+      flannel_backend_type: vxlan
+    plugin: canal
+  rotate_encryption_key: false
+# 
+#    services:
+#      kube-api:
+#        service_cluster_ip_range: 10.43.0.0/16
+#      kube-controller:
+#        cluster_cidr: 10.42.0.0/16
+#        service_cluster_ip_range: 10.43.0.0/16
+#      kubelet:
+#        cluster_domain: cluster.local
+#        cluster_dns_server: 10.43.0.10
+# 
+  services:
+    etcd:
+      backup_config:
+        enabled: true
+        interval_hours: 12
+        retention: 6
+        safe_timestamp: false
+        timeout: 300
+      creation: 12h
+      extra_args:
+        election-timeout: 5000
+        heartbeat-interval: 500
+      gid: 0
+      retention: 72h
+      snapshot: false
+      uid: 0
+    kube_api:
+      always_pull_images: false
+      pod_security_policy: false
+      secrets_encryption_config:
+        enabled: false
+      service_node_port_range: 30000-32767
+  ssh_agent_auth: false
+  upgrade_strategy:
+    max_unavailable_controlplane: '1'
+    max_unavailable_worker: 10%
+    node_drain_input:
+      delete_local_data: false
+      force: false
+      grace_period: -1
+      ignore_daemon_sets: true
+      timeout: 120
+windows_prefered_cluster: false

terraform/rancher-terraform/example-templates/node-template-example.json

@@ -0,0 +1,49 @@
+{
+    "driver": "openstack",
+    "name": "openstack-template",
+    "openstackConfig": {
+        "activeTimeout": "200",
+        "applicationCredentialId": "",
+        "applicationCredentialName": "",
+        "applicationCredentialSecret": "",
+        "authUrl": "https://private-cloud.informatik.hs-fulda.de:5000",
+        "availabilityZone": "nova",
+        "bootFromVolume": false,
+        "cacert": "",
+        "configDrive": false,
+        "domainId": "",
+        "domainName": "Default",
+        "endpointType": "",
+        "flavorId": "",
+        "flavorName": "m1.medium",
+        "floatingipPool": "public1",
+        "imageId": "",
+        "imageName": "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image",
+        "insecure": false,
+        "ipVersion": "4",
+        "keypairName": "rancher-key",
+        "netId": "",
+        "netName": "my-terraform-rancher-network-1",
+        "novaNetwork": false,
+        "region": "RegionOne",
+        "secGroups": "my-terraform-rancher-secgroup",
+        "sshPort": "22",
+        "sshUser": "ubuntu",
+        "tenantDomainId": "",
+        "tenantDomainName": "Default",
+        "tenantId": "",
+        "tenantName": "IntServ19",
+        "userDataFile": "",
+        "userDomainId": "",
+        "userDomainName": "Default",
+        "userId": "",
+        "username": "IntServ19",
+		"password": "<your password here>",
+        "volumeDevicePath": "",
+        "volumeId": "",
+        "volumeName": "",
+        "volumeSize": "0",
+        "volumeType": ""
+    },
+    "type": "nodeTemplate",
+}

terraform/rancher-terraform/main.tf

@@ -0,0 +1,500 @@
+# Define IntServ group number
+# TODO: change to use OS env vars etc.
+variable "group_number" {
+  type = string
+  default = "19"
+}
+
+## OpenStack credentials can be used in a more secure way by using
+## cloud.yaml from https://private-cloud.informatik.hs-fulda.de/project/api_access/clouds.yaml/
+
+# Define OpenStack credentials, project config etc.
+locals {
+  auth_url          = "https://private-cloud.informatik.hs-fulda.de:5000/v3"
+  user_name         = "IntServ${var.group_number}"
+  user_password     = "<password of your group here, private-cloud is only reachable via vpn>"
+  tenant_name       = "IntServ${var.group_number}"
+  #network_name     = "IntServ${var.group_number}-net"
+  router_name       = "IntServ${var.group_number}-router"
+  image_name        = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+  flavor_name       = "m1.medium"
+  region_name       = "RegionOne"
+  rke_flavor_name   = "m1.medium"
+  availability_zone = "nova"
+  domain_name       = "Default"
+# possibly set floating_ip_pool = "" to avoid assigning floating ips to
+# every created node and use only load balancer as frontend, however needed
+# for node port forwarding etc. using kube proxy
+  floating_ip_pool  = "public1"
+  ssh_user          = "ubuntu"
+}
+
+# Define OpenStack provider
+terraform {
+required_version = ">= 0.14.0"
+  required_providers {
+    openstack = {
+      source  = "terraform-provider-openstack/openstack"
+      version = ">= 1.46.0"
+    }
+    rancher2 = {
+      source = "rancher/rancher2"
+      version = ">= 1.22.2"
+    }
+  }
+}
+
+# Configure the OpenStack Provider
+provider "openstack" {
+  user_name   = local.user_name
+  tenant_name = local.tenant_name
+  password    = local.user_password
+  auth_url    = local.auth_url
+  region      = local.region_name
+  use_octavia = true
+}
+
+
+
+###########################################################################
+#
+# create keypair
+#
+###########################################################################
+
+# import keypair, if public_key is not specified, create new keypair to use
+resource "openstack_compute_keypair_v2" "terraform-rancher-keypair" {
+  name       = "my-terraform-rancher-pubkey"
+  # public_key = file("~/srieger_rsa.pub")
+}
+
+
+
+###########################################################################
+#
+# create security group
+#
+###########################################################################
+
+resource "openstack_networking_secgroup_v2" "terraform-rancher-secgroup" {
+  name        = "my-terraform-rancher-secgroup"
+  description = "for terraform rancher instances"
+}
+
+# TODO: possibly cleanup unnecessary ports?
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-ssh" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 22
+  port_range_max    = 22
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-http" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 80
+  port_range_max    = 80
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-https" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 443
+  port_range_max    = 443
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-2376" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 2376
+  port_range_max    = 2376
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-2379" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 2379
+  port_range_max    = 2379
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-2380" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 2380
+  port_range_max    = 2380
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-6443" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 6443
+  port_range_max    = 6443
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-9099" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 9099
+  port_range_max    = 9099
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-10250" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 10250
+  port_range_max    = 10250
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-10254" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "tcp"
+  port_range_min    = 10254
+  port_range_max    = 10254
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-rule-8472" {
+  direction         = "ingress"
+  ethertype         = "IPv4"
+  protocol          = "udp"
+  port_range_min    = 8472
+  port_range_max    = 8472
+  #remote_ip_prefix  = "0.0.0.0/0"
+  security_group_id = openstack_networking_secgroup_v2.terraform-rancher-secgroup.id
+}
+
+
+
+
+###########################################################################
+#
+# create network
+#
+###########################################################################
+
+resource "openstack_networking_network_v2" "terraform-rancher-network-1" {
+  name           = "my-terraform-rancher-network-1"
+  admin_state_up = "true"
+}
+
+resource "openstack_networking_subnet_v2" "terraform-rancher-subnet-1" {
+  name            = "my-terraform-rancher-subnet-1"
+  network_id      = openstack_networking_network_v2.terraform-rancher-network-1.id
+  cidr            = "192.168.254.0/24"
+  dns_nameservers = [ "192.168.76.253" ]
+  ip_version      = 4
+}
+
+data "openstack_networking_router_v2" "router-1" {
+  name = local.router_name
+}
+
+resource "openstack_networking_router_interface_v2" "router_interface_1" {
+  router_id = data.openstack_networking_router_v2.router-1.id
+  subnet_id = openstack_networking_subnet_v2.terraform-rancher-subnet-1.id
+}
+
+
+
+###########################################################################
+#
+# create instances
+#
+###########################################################################
+
+resource "openstack_compute_instance_v2" "terraform-rancher-instance-1" {
+  name              = "my-terraform-rancher-instance-1"
+  image_name        = local.image_name
+  flavor_name       = local.flavor_name
+  key_pair          = openstack_compute_keypair_v2.terraform-rancher-keypair.name
+  security_groups   = [openstack_networking_secgroup_v2.terraform-rancher-secgroup.name]
+
+  network {
+    uuid = openstack_networking_network_v2.terraform-rancher-network-1.id
+  }
+
+  user_data = <<-EOF
+    #!/bin/bash
+    apt-get update
+    apt-get -y upgrade
+    curl https://releases.rancher.com/install-docker/20.10.sh | sh
+    sudo docker run --privileged -d --restart=unless-stopped -p 80:80 -p 443:443 --env CATTLE_BOOTSTRAP_PASSWORD=this-is-not-a-secure-bootstrap-pw rancher/rancher
+    #sudo docker ps
+    #sudo docker logs $(sudo docker ps | grep rancher | cut -d " " -f 1) 2>&1 | grep "Bootstrap Password:"
+  EOF
+
+  depends_on = [
+    openstack_networking_subnet_v2.terraform-rancher-subnet-1
+  ]
+}
+
+
+
+###########################################################################
+#
+# assign floating ip to rancher instance
+#
+###########################################################################
+resource "openstack_networking_floatingip_v2" "fip_1" {
+  pool    = "public1"
+}
+
+resource "openstack_compute_floatingip_associate_v2" "fip_1" {
+  floating_ip = "${openstack_networking_floatingip_v2.fip_1.address}"
+  instance_id = "${openstack_compute_instance_v2.terraform-rancher-instance-1.id}"
+}
+
+output "floating_ip" {
+  value = openstack_networking_floatingip_v2.fip_1
+}
+
+###########################################################################
+#
+# bootstrap rancher
+#
+###########################################################################
+
+# Provider bootstrap config
+provider "rancher2" {
+  alias = "bootstrap"
+
+  api_url   = "https://${openstack_networking_floatingip_v2.fip_1.address}"
+  bootstrap = true
+  insecure = true
+# takes roughly ~7 minutes currently
+  timeout = "600s"
+}
+
+# Create a new rancher2_bootstrap for Rancher v2.6.0 and above
+resource "rancher2_bootstrap" "admin" {
+  provider = rancher2.bootstrap
+  initial_password = "this-is-not-a-secure-bootstrap-pw"
+  password = "this-is-not-a-secure-admin-pw"
+  telemetry = true
+  token_update=true
+}
+
+# Rancher2 administration provider
+provider "rancher2" {
+  alias = "admin"
+
+  api_url  = "https://${openstack_networking_floatingip_v2.fip_1.address}"
+  insecure = true
+  # ca_certs  = data.kubernetes_secret.rancher_cert.data["ca.crt"]
+  token_key = rancher2_bootstrap.admin.token
+}
+
+###########################################################################
+#
+# enable rancher node driver openstack
+#
+###########################################################################
+
+#data "rancher2_node_driver" "OpenStack" {
+#  provider = rancher2.admin
+#  name = "openstack"
+#}
+
+# Create a new rancher2 Node Driver
+# TODO: creates a new builtin driver, maybe better to change existing one
+resource "rancher2_node_driver" "OpenStack" {
+  provider = rancher2.admin
+  name = "openstack"
+  active = true
+  builtin = true
+  url = "local://"
+#  external_id = data.rancher2_node_driver.OpenStack
+}
+
+
+
+###########################################################################
+#
+# create rancher node template for hsfd openstack
+#
+###########################################################################
+
+resource "rancher2_node_template" "hsfd-rancher-openstack" {
+  provider = rancher2.admin
+  name = "hsfd-rancher-openstack"
+  driver_id = rancher2_node_driver.OpenStack.id
+  openstack_config {
+    auth_url = local.auth_url
+    availability_zone = local.availability_zone
+    region = local.region_name
+    username = local.user_name
+# TODO: (Optional/Sensitive) OpenStack password. Mandatory on Rancher v2.0.x and v2.1.x. Use rancher2_cloud_credential from Rancher v2.2.x (string)
+    password = local.user_password
+    active_timeout = "200"
+    domain_name = local.domain_name
+    boot_from_volume = false
+    flavor_name = local.rke_flavor_name
+    floating_ip_pool = local.floating_ip_pool
+    image_name = local.image_name
+    ip_version = "4"
+    keypair_name = openstack_compute_keypair_v2.terraform-rancher-keypair.name
+    net_id = openstack_networking_network_v2.terraform-rancher-network-1.id
+    sec_groups = openstack_networking_secgroup_v2.terraform-rancher-secgroup.name
+    ssh_user = local.ssh_user
+    private_key_file = openstack_compute_keypair_v2.terraform-rancher-keypair.private_key
+    tenant_name = local.tenant_name
+  }
+# TODO: get latest recommended string possible?
+  engine_install_url = "https://releases.rancher.com/install-docker/20.10.sh"
+}
+
+
+
+###########################################################################
+#
+# create rke template for hsfd openstack
+#
+###########################################################################
+
+data "openstack_identity_project_v3" "my-project" {
+  name = local.tenant_name
+}
+
+data "openstack_networking_network_v2" "public1" {
+  name = local.floating_ip_pool
+}
+
+# Create a new rancher2 Cluster Template
+resource "rancher2_cluster_template" "hsfd-rke-openstack" {
+  provider = rancher2.admin
+  name = "hsfd-rke-openstack"
+  template_revisions {
+    name = "V1"
+    cluster_config {
+      rke_config {
+        cloud_provider {
+          name = "openstack"
+          openstack_cloud_provider {
+            block_storage {
+              ignore_volume_az = true
+              trust_device_path = false
+            }
+            global {
+              auth_url = local.auth_url
+              domain_name = local.domain_name
+              tenant_id = data.openstack_identity_project_v3.my-project.id
+              username = local.user_name
+              password = local.user_password
+            }
+            load_balancer {
+              create_monitor = false
+              floating_network_id = data.openstack_networking_network_v2.public1.id
+              lb_version = "v2"
+              manage_security_groups = true
+              monitor_max_retries = 0
+              subnet_id = openstack_networking_subnet_v2.terraform-rancher-subnet-1.id
+              use_octavia = true
+            }
+            metadata {
+              request_timeout = 0
+            }
+            route {
+              router_id = data.openstack_networking_router_v2.router-1.id
+            }
+          }
+        }
+      }
+    }
+    default = true
+  }
+  description = "Terraform RKE template for HSFD OpenStack"
+}
+
+
+
+###########################################################################
+#
+# create rke demo cluster
+#
+###########################################################################
+
+resource "rancher2_cluster" "hsfd-rke-demo" {
+  provider = rancher2.admin
+  name = "hsfd-rke-demo"
+  cluster_template_id = rancher2_cluster_template.hsfd-rke-openstack.id
+  cluster_template_revision_id = rancher2_cluster_template.hsfd-rke-openstack.template_revisions.0.id
+  
+# if instance is gone before deleting the cluster, we'll not be able to
+# reach rke anymore
+  depends_on = [
+    openstack_compute_instance_v2.terraform-rancher-instance-1, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-ssh, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-http, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-https, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-2376,
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-2379,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-2380,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-6443,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-9099,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-10250,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-10254,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-8472,
+	openstack_compute_floatingip_associate_v2.fip_1
+  ]
+}
+
+# Create a new rancher2 Node Pool
+resource "rancher2_node_pool" "pool1" {
+  provider = rancher2.admin
+  cluster_id =  rancher2_cluster.hsfd-rke-demo.id
+  name = "ctrl-etcd-work"
+  hostname_prefix =  "ctrl-etcd-work"
+  node_template_id = rancher2_node_template.hsfd-rancher-openstack.id
+  quantity = 1
+  control_plane = true
+  etcd = true
+  worker = true
+
+# if instance is gone before deleting the cluster, we'll not be able to
+# reach rke anymore
+  depends_on = [
+    openstack_compute_instance_v2.terraform-rancher-instance-1, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-ssh, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-http, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-https, 
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-2376,
+	openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-2379,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-2380,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-6443,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-9099,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-10250,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-10254,
+    openstack_networking_secgroup_rule_v2.terraform-secgroup-rule-8472,
+	openstack_compute_floatingip_associate_v2.fip_1
+  ]
+}

terraform/rke-terraform/main.tf

@@ -0,0 +1,20 @@
+# Consider using 'export TF_VAR_os_auth_url=$OS_AUTH_URL'
+variable "os_auth_url"{}
+# Consider using 'export TF_VAR_os_password=$OS_PASSWORD'
+variable "os_password"{}
+
+ module "rke" {
+  source  = "remche/rke/openstack"
+  image_name             = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+  public_net_name        = "public1"
+  master_flavor_name     = "m1.small"
+  worker_flavor_name     = "m1.small"
+  os_auth_url            = var.os_auth_url
+  os_password            = var.os_password
+  #use_ssh_agent          = false
+  #enable_loadbalancer    = true
+  #use_octavia            = true
+  wait_for_commands      = ["while docker info ; [ $? -ne 0 ]; do echo wait for docker; sudo newgrp - docker ; sleep 30 ; done"]
+  user_data_file         = "user-data.sh"
+  dns_servers            = [ "192.168.76.253" ]
+}

terraform/rke-terraform/user-data.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+#apt-get update
+#apt-get -y upgrade
+curl https://releases.rancher.com/install-docker/20.10.sh | sh
+groupadd docker
+usermod -aG docker ubuntu

terraform/rke2-terraform/main.tf

@@ -0,0 +1,11 @@
+module "controlplane" {
+  source           = "remche/rke2/openstack"
+  cluster_name     = var.cluster_name
+  dns_servers      = var.dns_servers
+  write_kubeconfig = true
+  image_name       = "Ubuntu 20.04 - Focal Fossa - 64-bit - Cloud Based Image"
+  flavor_name      = "m1.medium"
+  public_net_name  = "public1"
+  use_ssh_agent    = false
+  ssh_key_file     = "/root/.ssh/id_rsa"
+}

terraform/rke2-terraform/outputs.tf

@@ -0,0 +1,5 @@
+output "server_ip" {
+  description = "Server floating IP"
+  value       = module.controlplane.floating_ip[0]
+  sensitive   = true
+}

terraform/rke2-terraform/variables.tf

@@ -0,0 +1,9 @@
+variable "cluster_name" {
+  type    = string
+  default = "minimal"
+}
+
+variable "dns_servers" {
+  type    = list(string)
+  default = ["192.168.76.253"]
+}