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Forked from Ryan Randles Jones / Terraform Openstack

27 commits ahead of the upstream repository.

Remove post instatiation actions from all node types

John-Paul Robinson authored 4 years ago

Supporting as simple option for deploying a cluster of nodes that only
deploys the defined image with no-post provisioning steps.

Removes the user_data actions from the compute and gateway (ood) nodes.
Removes provisioner actions from the master node (ohpc).

0f57e53a

Name	Last commit	Last update
external-network
floating-ip
internal-network
key-pair
nodes
ohpc-instance
ood-instance
CRI_XCBC @ 89297776
.gitmodules
README.md
main.tf
vars.tf

Terraform Openstack

This will create:

dmznet and dmzsubnet
borderrouter that connects dmznet to bright-external-flat-externalnet
a floating ip address, and an instance coming off of dmznet
clusternet off of dmznet instance
clustersubnet will connect instance to ood through ohpc and download software

Make a new directory for Terraform:

$mkdir terraform-first-instance

Install Terraform:

Install terraform from your systems package manager or directly from HashiCorp. Terraform is a single binary so it's easy to maintain the latest release version from the distributed zip files.

On a Mac (using brew package manager):

$brew install terraform

On a linux box (using the upstream package installed to personal ~/bin already in the $PATH):

wget https://releases.hashicorp.com/terraform/0.12.3/terraform_0.12.3_linux_amd64.zip
unzip terraform_0.12.3_linux_amd64.zip -d ~/bin

Unzip the file and make a path to your new directory using:

$export TERRAFORM_DIR="$(pwd)/terraform-first-instance
$cp $HOME/Downloads/terraform_0.6.16_linux_amd64/terraform $TERRAFORM_DIR

Create a new application credintial in Openstack:

In Openstack, go to Identity -> Application Credentials
Click "Create Application Credential"
Name the credential, add a description, and check the box making it unrestricted (Leave the rest blank. It is important not to add an expiration date.)
Download the credentials as an RC file.
Save credentials RC file in your terraform-first-instance directory.

Clone this repo into your terraform-first-instance directory using:

$git clone --recursive https://gitlab.rc.uab.edu/rrand11/terraform-openstack.git

Source the RC file and initialize terraform:

$source CREDENTIALRCFILENAME
$cd terraform-openstack
$terraform init

Write Terraform Plan to your terraform-first-instance directory and run that plan:

$terraform plan -out $HOME/terraform-first-instance/terraform-plan.tf

(Note) $terraform plan -out writes the plan to a file and then terraform apply runs that plan.

$terraform apply "$HOME/terraform-first-instance/terraform-plan.tf"

There's a target parameter that will let you specify just one module as defined in the root main file. Run it via plan like so:

$terraform plan -out $HOME/terraform-first-instance/name-of-plan.tf -target=module.name-of-module-to-run

(Note) You can also target multiple modules.

$terraform plan -out $HOME/terraform-first-instance/name-of-plan.tf -target=module.name-of-module -target=module.name-of-other-module

Destroy Terraform Instance:

$terraform destroy