part15-openstack-provider

Openstack provider

1. providers.tf

its for define providers . "openstack" in this file come from clouds.yaml

2. variables.tf

put all variables in this file such as number of worker node or ssh-key file

3. network.tf

First it creates an external network (or you can import it) then it creates subnet and router Next it creates 2 floatingip and finally it assigns IPs to VMs

4. keypairs.tf

We add our public key to use in OpenStack. default from ~/.ssh/id_rsa.pub

5. get_images.tf

I gave the image of Debian from the local path. You can download it directly from the Internet

6. flavors.tf

flavor is size for VMs. RAM , CPU and disk

7. sec_groups.tf

Security group like iptables . We can use default security group

8. computes.tf

This file up and runnig VMs

9. locals.tf

in locals.tf we save the IPs of the VMs. And put in host.ini with templating for use it in ansible

10. templates/host.ini

this is template file for create host.ini and put IPs in this

note :

we need clouds.yaml as config and put username and password and auth url there and terraform read data from clouds.yaml example:

clouds:
  openstack:
    auth:
      auth_url: http://192.168.122.10:35357/
      project_name: demo
      username: demo
      password: 1234
    region_name: RegionOne

See this address for more information

Run :

First edit clouds.yaml file

next:

terraform init
terrafrom plan
terraform apply