Hands on 3 - Deploying

    The goal of this hands-on is to:

    • deploy Flatcar instances with IaC (Terraform)
    • manipulate Terraform code
    • write Flatcar provisioning with Terraform
    • deploy Flatcar on OpenStack with Terraform

    This is a bundle of hands-on-1 and hands-on-2 but it’s not a local deployment and everything is as code.

    Step-by-step

    git clone https://github.com/flatcar/flatcar-tutorial; cd flatcar-tutorial/hands-on-3
# go into the terraform directory
cd terraform
# update the config for creating index.html from previous hands-on
vim server-configs/server1.yaml
# init the terraform project locally
terraform init
# get the credentials and update the `terraform.tfvars` consequently
# generate the plan and inspect it
terraform plan
# apply the plan
terraform apply
# go on the horizon dashboard and connect with terraform credentials
# find your instance

    One can assert that it works by accessing the console (click on the instance then “console”)

    NOTE: it’s possible to SSH into the instance but at the moment, it takes a SSH jump through the openstack (devstack) instance.

    ssh -J user@[DEVSTACK-IP] -i ./.ssh/provisioning_private_key.pem -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null core@[SERVER-IP]

    To destroy the instance:

    # if you are happy, destroy everything
terraform destroy

    Resources

    Demo

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