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initial version of terraform openstack example incl load balancer

master
Sebastian Rieger 6 months ago
parent
commit
17e8b41743
  1. 353
      terraform/demo4-scale-out-lb/demo4-scale-out-lb.tf
  2. 3
      terraform/demo4-scale-out-lb/get-terraform.sh
  3. 5
      terraform/demo4-scale-out-lb/run-terraform.sh

353
terraform/demo4-scale-out-lb/demo4-scale-out-lb.tf

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# Define CloudComp group number
variable "group_number" {
type = string
default = "30"
}
# Define OpenStack credentials, project config etc.
locals {
auth_url = "https://private-cloud.informatik.hs-fulda.de:5000/v3"
user_name = "CloudComp${var.group_number}"
user_password = "demo"
tenant_name = "CloudComp${var.group_number}"
network_name = "CloudComp${var.group_number}-net"
image_name = "Ubuntu 18.04 - Bionic Beaver - 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 = ">= 1.40.0"
}
}
}
# 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
}
# import keypair
resource "openstack_compute_keypair_v2" "terraform-keypair" {
name = "my-terraform-pubkey"
#public_key = file("~/.ssh/id_rsa.pub")
}
# create api security group
resource "openstack_networking_secgroup_v2" "terraform-secgroup-api" {
name = "my-terraform-secgroup-api"
description = "for API services only"
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-api-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-api.id
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-api-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-api.id
}
# create worker security group
resource "openstack_networking_secgroup_v2" "terraform-secgroup-worker" {
name = "my-terraform-secgroup-worker"
description = "for services that run on a worker node"
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-worker-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-worker.id
}
resource "openstack_networking_secgroup_v2" "terraform-secgroup-control" {
name = "my-terraform-secgroup-control"
description = "for services that run on a control node"
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-control-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-control.id
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-control-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-control.id
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-control-rule-rabbitmq" {
direction = "ingress"
ethertype = "IPv4"
protocol = "tcp"
port_range_min = 5672
port_range_max = 5672
remote_group_id = openstack_networking_secgroup_v2.terraform-secgroup-worker.id
security_group_id = openstack_networking_secgroup_v2.terraform-secgroup-control.id
}
# create services security group
resource "openstack_networking_secgroup_v2" "terraform-secgroup-services" {
name = "my-terraform-secgroup-services"
description = "for DB and AMQP services only"
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-services-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-services.id
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-services-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-services.id
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-services-rule-mysql-api" {
direction = "ingress"
ethertype = "IPv4"
protocol = "tcp"
port_range_min = 3306
port_range_max = 3306
remote_group_id = openstack_networking_secgroup_v2.terraform-secgroup-api.id
security_group_id = openstack_networking_secgroup_v2.terraform-secgroup-services.id
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-services-rule-rabbitmq-worker" {
direction = "ingress"
ethertype = "IPv4"
protocol = "tcp"
port_range_min = 5672
port_range_max = 5672
remote_group_id = openstack_networking_secgroup_v2.terraform-secgroup-worker.id
security_group_id = openstack_networking_secgroup_v2.terraform-secgroup-services.id
}
resource "openstack_networking_secgroup_rule_v2" "terraform-secgroup-services-rule-rabbitmq-api" {
direction = "ingress"
ethertype = "IPv4"
protocol = "tcp"
port_range_min = 5672
port_range_max = 5672
remote_group_id = openstack_networking_secgroup_v2.terraform-secgroup-api.id
security_group_id = openstack_networking_secgroup_v2.terraform-secgroup-services.id
}
###########################################################################
#
# create app-services instance
#
###########################################################################
resource "openstack_compute_instance_v2" "terraform-instance-app-services" {
name = "my-terraform-app-services"
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-services.name]
network {
name = local.network_name
}
user_data = <<-EOF
#!/usr/bin/env bash
curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
-i database -i messaging
rabbitmqctl add_user faafo guest
rabbitmqctl set_user_tags faafo administrator
rabbitmqctl set_permissions -p / faafo ".*" ".*" ".*"
EOF
}
###########################################################################
#
# create app-api instances
#
###########################################################################
resource "openstack_compute_instance_v2" "terraform-instance-app-api-1" {
name = "my-terraform-app-api-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-api.name]
network {
name = local.network_name
}
user_data = <<-EOF
#!/usr/bin/env bash
curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
-i faafo -r api -m 'amqp://faafo:guest@${openstack_compute_instance_v2.terraform-instance-app-services.access_ip_v4}:5672/' \
-d 'mysql+pymysql://faafo:password@${openstack_compute_instance_v2.terraform-instance-app-services.access_ip_v4}:3306/faafo'
EOF
}
resource "openstack_compute_instance_v2" "terraform-instance-app-api-2" {
name = "my-terraform-app-api-2"
image_name = local.image_name
flavor_name = local.flavor_name
key_pair = openstack_compute_keypair_v2.terraform-keypair.name
security_groups = [openstack_networking_secgroup_v2.terraform-secgroup-api.id]
network {
name = local.network_name
}
user_data = <<-EOF
#!/usr/bin/env bash
curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
-i faafo -r api -m 'amqp://faafo:guest@${openstack_compute_instance_v2.terraform-instance-app-services.access_ip_v4}:5672/' \
-d 'mysql+pymysql://faafo:password@${openstack_compute_instance_v2.terraform-instance-app-services.access_ip_v4}:3306/faafo'
EOF
}
###########################################################################
#
# create worker instances
#
###########################################################################
resource "openstack_compute_instance_v2" "terraform-instance-app-worker-1" {
name = "my-terraform-app-worker-1"
image_name = local.image_name
flavor_name = local.flavor_name
key_pair = openstack_compute_keypair_v2.terraform-keypair.name
security_groups = [openstack_networking_secgroup_v2.terraform-secgroup-worker.id]
network {
name = local.network_name
}
user_data = <<-EOF
#!/usr/bin/env bash
curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
-i faafo -r worker -e 'http://${openstack_compute_instance_v2.terraform-instance-app-api-1.access_ip_v4}' -m 'amqp://faafo:guest@${openstack_compute_instance_v2.terraform-instance-app-services.access_ip_v4}:5672/'
EOF
}
resource "openstack_compute_instance_v2" "terraform-instance-app-worker-2" {
name = "my-terraform-app-worker-2"
image_name = local.image_name
flavor_name = local.flavor_name
key_pair = openstack_compute_keypair_v2.terraform-keypair.name
security_groups = [openstack_networking_secgroup_v2.terraform-secgroup-worker.id]
network {
name = local.network_name
}
user_data = <<-EOF
#!/usr/bin/env bash
curl -L -s https://gogs.informatik.hs-fulda.de/srieger/cloud-computing-msc-ai-examples/raw/master/faafo/contrib/install.sh | bash -s -- \
-i faafo -r worker -e 'http://${openstack_compute_instance_v2.terraform-instance-app-api-1.access_ip_v4}' -m 'amqp://faafo:guest@${openstack_compute_instance_v2.terraform-instance-app-services.access_ip_v4}:5672/'
EOF
}
###########################################################################
#
# create load balancer
#
###########################################################################
data "openstack_networking_network_v2" "network_1" {
name = local.network_name
}
resource "openstack_lb_loadbalancer_v2" "lb_1" {
vip_subnet_id = data.openstack_networking_network_v2.network_1.subnets[0]
}
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-app-api-1.access_ip_v4
protocol_port = 80
}
member {
address = openstack_compute_instance_v2.terraform-instance-app-api-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
}
###########################################################################
#
# 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
}

3
terraform/demo4-scale-out-lb/get-terraform.sh

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#!/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

5
terraform/demo4-scale-out-lb/run-terraform.sh

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#!/bin/bash
./terraform init
./terraform plan
./terraform apply
./terraform destroy
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