Terraform Modules for use with Open Telekom Cloud

This repository contains Terraform modules ready for use with Open Telekom Cloud. These modules aim to correlate the native OpenStack resources under the paradigm of OTC like ECS, VPC, etc.

Use modules with terraform

See the Terraform documentation on how to use modules.

If starting from scratch, a terraform init in you terraform directory will initialize and download the required plugins as well as the modules. If you already have an initialized workspace and just want to retrieve the modules, you can do that via terraform get. Please note that any subsequent invocations of terraform get will NOT update the modules. If you want to get the latest version, you need to issue the command terraform get -update=true.

To see an example implementation of these modules, you can use this repository, especially this file.

Module description

EVS

This modules creates one or more EVS (Elastic Volume Service). Using the ecs_count variable, any number of volumes can be created. These volumes have to be attached to an ECS instance (or a ordinary OpenStack compute instance), provided via the ecs_ids parameter.

Parameter

Name	Description	Type	Required	Default
name	naming prefix for created resources	string	True
size_in_gb	size of the volume in GByte	string	True
ecs_ids	list of IDs from ECS to attach the volumes to	list	True
evs_count	number of volumes to create	string	False	1

Attributes

Name	Description	Type
ids	list of IDs of the created volumes	list

Native OpenStack resources

• openstack_blockstorage_volume_v2

• openstack_compute_volume_attach_v2

ECS

This modules creates one or more ECS (Elastic Cloud Server). The information for image and flavor can be found when creating a new ECS in OTC:

Parameter

Name	Description	Type	Required	Default
name	naming prefix for created resources	string	True
image	name of the image to use for the server	string	True
flavor	name of the flavor to use for the server	string	True
pubkey	the public key to deploy on the server	string	True
network_id	the ID of the network to attach the server to	string	True
subnet_id	the ID of the subnet to attach the server to	string	True
user_data	the user data to inject	string	False
attach_eip	whether or not to attach en EIP to the server	string	False
security_groups	list of security group ids to attach to the server	list	False	[]
ecs_count	number of ECS instances to create	string	False	1
ext_net_name	name of the external network (do not change)	string	False	admin_external_net

Attributes

Name	Description	Type
addresses	list of ipv4 addresses of the created servers	list
ids	list of IDs of the created servers	list
count	number of servers created	string

Native OpenStack resources

• openstack_compute_instance_v2

• openstack_networking_floatingip_v2

• openstack_compute_keypair_v2

ULB

This modules creates a ULB (Unified Load Balancer).

Parameter

Name	Description	Type	Required	Default
name	naming prefix for created resources	string	True
subnet_id	the ID of the subnet to attach the loadbalancer to	string	True
members_count	number of members to add to the loadbalancer	string	True
members	the addresses of the memebers that should be added to the loadbalancer	list	True
attach_eip	whether or not to attach an EIP to the loadbalancer	string	False	true
protocol	protocol used by the loadbalancer	string	False	HTTP
listener_port	port the loadbalancer should listen on	string	False	80
member_port	port of the members that provide the service to loadbalance	string	False	80
monitor_url_path	url path to check for member health	string	False	/
monitor_expected_codes	http code to indicate successful health check	string	False	200
monitor_delay	delay of the health check in seconds	string	False	20
monitor_timeout	timeout of the health check in seconds	string	False	10
monitor_retries	retries of health checks before member gets removed	string	False	5
ext_net_name	name of the external network (do not change)	string	False	admin_external_net
dependencies	dependencies that should be build before the loadbalancer	list	False	[]

Attributes

Name	Description	Type
vip_port_id	ID of the vip port created by the loadbalancer	string

Native OpenStack resources

• openstack_lb_loadbalancer_v2

• openstack_lb_listener_v2

• openstack_lb_pool_v2

• openstack_lb_member_v2

• openstack_lb_monitor_v2

• openstack_networking_floatingip_v2

VPC

This modules creates a VPC (Virtual Private Cloud).

Parameter

Name	Description	Type	Required	Default
name	naming prefix for created resources	string	True
subnet	cidr of the desired subnet for the VPC	string	True
nameserver	nameserver to provide vi DHCP	list	False	['8.8.8.8', '8.8.4.4']
ext_net_name	name of the external network (do not change)	string	False	admin_external_net

Attributes

Name	Description	Type
network_id	the id of the created network	string
router_id	the id of the created router	string
interface_port	the port id of the created router interface	string
subnet_id	the id of the created subnet	string

Native OpenStack resources

• openstack_networking_network_v2

• openstack_networking_subnet_v2

• openstack_networking_router_v2

• openstack_networking_router_interface_v2