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Update README.md with minor fixes and cleanup

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Drew Leske 2018-02-23 15:05:29 -08:00 committed by GitHub
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@ -34,7 +34,7 @@ floating IP addresses or not.
Note that the Ansible script will report an invalid configuration if you wind up Note that the Ansible script will report an invalid configuration if you wind up
with an even number of etcd instances since that is not a valid configuration. with an even number of etcd instances since that is not a valid configuration.
### Gluster FS ### GlusterFS
The Terraform configuration supports provisioning of an optional GlusterFS The Terraform configuration supports provisioning of an optional GlusterFS
shared file system based on a separate set of VMs. To enable this, you need to shared file system based on a separate set of VMs. To enable this, you need to
specify: specify:
@ -95,18 +95,19 @@ This will be the base for subsequent Terraform commands.
#### OpenStack access and credentials #### OpenStack access and credentials
No provider variables are hardcoded inside `variables.tf` because Terraform No provider variables are hardcoded inside `variables.tf` because Terraform
supports various authentication method for OpenStack, between identity v2 and supports various authentication methods for OpenStack: the older script and
v3 API, `openrc` or `clouds.yaml`. environment method (using `openrc`) as well as a newer declarative method, and
different OpenStack environments may support Identity API version 2 or 3.
These are examples and may vary depending on your OpenStack cloud provider, These are examples and may vary depending on your OpenStack cloud provider,
for an exhaustive list on how to authenticate on OpenStack with Terraform for an exhaustive list on how to authenticate on OpenStack with Terraform
please read the [OpenStack provider documentation](https://www.terraform.io/docs/providers/openstack/). please read the [OpenStack provider documentation](https://www.terraform.io/docs/providers/openstack/).
##### Recommended method: clouds.yaml ##### Declarative method (recommended)
Newer recommended authentication method is to use a `clouds.yaml` file that can be store in: The recommended authentication method is to describe credentials in a YAML file `clouds.yaml` that can be stored in:
* `Current Directory` * the current directory
* `~/.config/openstack` * `~/.config/openstack`
* `/etc/openstack` * `/etc/openstack`
@ -128,18 +129,18 @@ clouds:
``` ```
If you have multiple clouds defined in your `clouds.yaml` file you can choose If you have multiple clouds defined in your `clouds.yaml` file you can choose
the one you want to use with the environment variable `OS_CLOUD` : the one you want to use with the environment variable `OS_CLOUD`:
``` ```
export OS_CLOUD=mycloud export OS_CLOUD=mycloud
``` ```
##### Deprecated method : openrc ##### Openrc method (deprecated)
When using classic environment variables, Terraform uses default `OS_*` When using classic environment variables, Terraform uses default `OS_*`
environment variables : environment variables:
With identity v2 : With identity v2:
``` ```
source openrc source openrc
@ -176,7 +177,7 @@ OS_USER_DOMAIN_NAME=Default
``` ```
Terraform does not support a mix of DomainName and DomainID, choose one or the Terraform does not support a mix of DomainName and DomainID, choose one or the
other : other:
``` ```
* provider.openstack: You must provide exactly one of DomainID or DomainName to authenticate by Username * provider.openstack: You must provide exactly one of DomainID or DomainName to authenticate by Username