cloud:cli
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| cloud:cli [2020/05/14 10:17] – [A WORD ABOUT CLOUD INIT] chudler | cloud:cli [2021/04/15 16:17] – chudler | ||
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| Use a clouds.yaml file to direct your client. Below is a canonical example, but you __will__ have to modify the variables according to your account. | Use a clouds.yaml file to direct your client. Below is a canonical example, but you __will__ have to modify the variables according to your account. | ||
| - | '' | + | '' |
| < | < | ||
| clouds: | clouds: | ||
| Line 16: | Line 16: | ||
| auth_url: https:// | auth_url: https:// | ||
| username: " | username: " | ||
| - | password: " | + | password: " |
| - | project_id: YOUR PROJECT UUID | + | |
| project_name: | project_name: | ||
| user_domain_name: | user_domain_name: | ||
| Line 24: | Line 23: | ||
| identity_api_version: | identity_api_version: | ||
| </ | </ | ||
| - | The [[ cloud: | ||
| - | You can also download a customized version of this data after you authenticate to the Web Interface | + | **NOTE** |
| + | The problem here is that you are taking risks by storing your University credentials in a file. Instead, you can use the API or [[ https:// | ||
| + | |||
| + | < | ||
| + | openstack application credential create --secret sekret --role member --expiration 2020-10-10: | ||
| + | </ | ||
| + | |||
| + | See the [[ cloud: | ||
| + | |||
| + | === Download Configuration File === | ||
| + | You can download a customized version of this data after you authenticate to the [[ https:// | ||
| + | |||
| + | For convenience, | ||
| + | < | ||
| + | export OS_CLOUD=openstack | ||
| + | </ | ||
| ====== USAGE ====== | ====== USAGE ====== | ||
| Line 49: | Line 62: | ||
| ====Images==== | ====Images==== | ||
| - | Images are prebuilt | + | Images are prebuilt |
| - | There are images that Techstaff provides, some of which are restricted-use. We can build images for you or you can build and upload your own. Our images are generic, bare bones, cloud enabled popular operating systems that are a firm foundation for you to customize from. They are often in RAW format, not qcow2, for performance reasons. | + | There are images that Techstaff provides, some of which are restricted-use. We can build images for you or you can build and upload your own. Our images are generic, bare bones, cloud enabled, popular operating systems, that are a firm foundation for you to customize from. They are often in RAW format, not qcow2, for performance reasons. |
| + | |||
| + | Beware of images that are used internally to provide cloud services. You should not usually launch these directly. You do have access to them for the use of a service, and are welcome to customize for advanced usage. | ||
| < | < | ||
| Line 58: | Line 73: | ||
| Openstack can hold a public key in its db, and insert it into instances when told. This is optional (your author does not use this capability) | Openstack can hold a public key in its db, and insert it into instances when told. This is optional (your author does not use this capability) | ||
| - | < | + | < |
| ==== Flavors ==== | ==== Flavors ==== | ||
| A flavor is a pre-chosen size for resources that make up an instance. It is a mandatory parameter when creating instances. Look at the available flavors, which your admins have created.\\ | A flavor is a pre-chosen size for resources that make up an instance. It is a mandatory parameter when creating instances. Look at the available flavors, which your admins have created.\\ | ||
| - | Servers can grow after creation. For example, the disk-size attribute merely expresses the **minimum** size of the boot volume, and most cloud-enabled operating systems expand the root volume on first-boot. In spite of this, relying on dynamically resizing instances increases risk, and you should choose a size that is close to what you expect to use. | + | |
| + | Servers can grow after creation. For example, the '' | ||
| < | < | ||
| Line 82: | Line 98: | ||
| You now have all of the prerequisites for launching a virtual computer. These are the prerequisites: | You now have all of the prerequisites for launching a virtual computer. These are the prerequisites: | ||
| - | * Properly prepared Network -- or use the one called | + | * Properly prepared Network -- or use the one called |
| * Flavor Name | * Flavor Name | ||
| * Image Name | * Image Name | ||
| Line 149: | Line 165: | ||
| </ | </ | ||
| - | In actual fact, all of the servers you create will be in the same security group. | + | In actual fact, all of the servers you create will be in the same security group, so you will not need to " |
| ==== Internet Addresses ==== | ==== Internet Addresses ==== | ||
| - | If the server' | + | If the server' |
| As in [[ cloud: | As in [[ cloud: | ||
| Line 181: | Line 197: | ||
| This section added a floating ip address directly to the server. You must realize that a router was needed on the subnet for that to happen. On default subnets, your cloud admin has pre-created suitable routers. The command will fail if you are creating your own subnets and networks without taking similar steps. | This section added a floating ip address directly to the server. You must realize that a router was needed on the subnet for that to happen. On default subnets, your cloud admin has pre-created suitable routers. The command will fail if you are creating your own subnets and networks without taking similar steps. | ||
| + | Mixing and matching these techniques will create hilarious disasters. | ||
| ==== A WORD ABOUT CLOUD INIT ==== | ==== A WORD ABOUT CLOUD INIT ==== | ||
| Your author uses cloud init extensively and does not contemplate alternative. It is optional. A minimal cloud-init for a modern Ubuntu cloud OS might look like this | Your author uses cloud init extensively and does not contemplate alternative. It is optional. A minimal cloud-init for a modern Ubuntu cloud OS might look like this | ||
/var/lib/dokuwiki/data/pages/cloud/cli.txt · Last modified: 2021/04/15 16:53 by chudler