64 lines
2.4 KiB
Markdown
64 lines
2.4 KiB
Markdown
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# Basic OpenStack architecture with networking
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This provides a template for running a simple architecture on an OpenStack
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cloud.
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To simplify the example, this intentionally ignores deploying and
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getting your application onto the servers. However, you could do so either via
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[provisioners](https://www.terraform.io/docs/provisioners/) and a configuration
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management tool, or by pre-baking configured images with
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[Packer](http://www.packer.io).
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After you run `terraform apply` on this configuration, it will output the
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floating IP address assigned to the instance. After your instance started,
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this should respond with the default nginx web page.
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First set the required environment variables for the OpenStack provider by
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sourcing the [credentials file](http://docs.openstack.org/cli-reference/content/cli_openrc.html).
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```
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source openrc
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```
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Afterwards run with a command like this:
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```
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terraform apply \
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-var 'external_gateway=c1901f39-f76e-498a-9547-c29ba45f64df' \
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-var 'pool=public'
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```
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To get a list of usable floating IP pools run this command:
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```
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$ nova floating-ip-pool-list
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+--------+
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| name |
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+--------+
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| public |
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+--------+
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```
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To get the UUID of the external gateway run this command:
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```
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$ neutron net-show FLOATING_IP_POOL
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+---------------------------+--------------------------------------+
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| Field | Value |
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+---------------------------+--------------------------------------+
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| admin_state_up | True |
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| id | c1901f39-f76e-498a-9547-c29ba45f64df |
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| mtu | 0 |
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| name | public |
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| port_security_enabled | True |
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| provider:network_type | vxlan |
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| provider:physical_network | |
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| provider:segmentation_id | 1092 |
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| router:external | True |
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| shared | False |
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| status | ACTIVE |
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| subnets | 42b672ae-8d51-4a18-a028-ddae7859ec4c |
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| tenant_id | 1bde0a49d2ff44ffb44e6339a8cefe3a |
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+---------------------------+--------------------------------------+
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```
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