cloud:intro
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cloud:intro [2019/12/06 14:26] – chudler | cloud:intro [2019/12/06 15:56] – chudler | ||
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=== SCOPE OF THIS DOCUMENT === | === SCOPE OF THIS DOCUMENT === | ||
- | This guide will cover a common subset of tasks that a user would need to perform to have a set of clustered computer instances and associated resources, isolated from others, and accessible to a project for any general purpose, both long-term and short. We are catering heavily to short-term usage, perhaps lasting a few quarters. | + | This guide covers the common subset of tasks that a user would need to perform to have a set of clustered computer instances and associated resources, isolated from others, and accessible to a project for any general purpose, both long-term and short. We are catering heavily to short-term |
- | Some things that are not here but perhaps should be covered elsewhere | + | Some things that are not written about here but perhaps should be covered elsewhere |
- | * Theory of operations (everything is by example) | + | * Theory of operations (everything |
- | * Tasks accomplished | + | * Accomplishing tasks from the Web Interface |
* Background and History | * Background and History | ||
- | * Organizational Policy, such as who can do what. | + | |
+ | | ||
* Deployment Architecture | * Deployment Architecture | ||
- | * Limitations | + | * Systemic |
- | * User management, Group management, and similar concepts | + | |
* Good Practices (because they are nascent, at best) | * Good Practices (because they are nascent, at best) | ||
* Cloud init, Fog, Terraform, Heat, and other operational tools | * Cloud init, Fog, Terraform, Heat, and other operational tools | ||
- | * Security | + | * Network and Information |
* Backup and Restore | * Backup and Restore | ||
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=== INTRODUCTION AND NOTES === | === INTRODUCTION AND NOTES === | ||
- | This cluster can spring into being computer resources, easily, and without | + | This cluster can spring into being computer resources, easily, and without |
* L2 and L3 Network | * L2 and L3 Network | ||
* Router (SNAT and DNAT devices, etc) | * Router (SNAT and DNAT devices, etc) | ||
* Compute, and all that it entails such as RAM, CPU, Disk, ... | * Compute, and all that it entails such as RAM, CPU, Disk, ... | ||
- | * Block Storage (volume mounts) | + | * Additional |
* Security groups (firewall service) | * Security groups (firewall service) | ||
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* NFS | * NFS | ||
* Rancher Kubernetes (among others) | * Rancher Kubernetes (among others) | ||
+ | * Lots more | ||
== Web Access and Certificates == | == Web Access and Certificates == | ||
- | The cloud is named **Overcloud**. The web interface at [[https:// | + | The cloud is named **Overcloud**. The web interface |
NOTE: Our cloud DNS service might not meet your needs. Please test it anyway if you know how (TODO: document) | NOTE: Our cloud DNS service might not meet your needs. Please test it anyway if you know how (TODO: document) | ||
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You could also use the web interface to access the console, but that's not quite the same. | You could also use the web interface to access the console, but that's not quite the same. | ||
As before, in the Network Gear section, get a campus IP address from our pool. | As before, in the Network Gear section, get a campus IP address from our pool. | ||
- | < | + | < |
+ | openstack server add floating ip myserver 128.135.37.XX | ||
+ | </ | ||
+ | |||
+ | Note that the command is showing you a deeper and more rare UX pattern than before: | ||
+ | |||
+ | < | ||
+ | openstack server $action $subresource $more_options | ||
+ | </ | ||
At last, you can ssh into 128.135.37.XX. It is important for you to realize that your __local__ server IP does not change (no new interface is given to the instance). Instead, the router on the subnet simply performs DNAT on behalf of the clients. Here's another possibility: | At last, you can ssh into 128.135.37.XX. It is important for you to realize that your __local__ server IP does not change (no new interface is given to the instance). Instead, the router on the subnet simply performs DNAT on behalf of the clients. Here's another possibility: | ||
< | < | ||
- | **Now** your server does have a new interface attached to it, and will be served a DHCP address | + | **Now** your server does have a **new** network |
+ | |||
+ | 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. We had created the router earlier for the purpose of SNAT, and had we not done that, this command would have failed. This means that if you are not doing SNAT, you should create a router anyway, but __do not__ give it a campus address of its own. | ||
== A WORD ABOUT CLOUD INIT == | == A WORD ABOUT CLOUD INIT == | ||
- | Your author uses cloud init extensively and does not imagine a life without it. It is optional. The file used in these examples is attached to this email, but you should develop your own if you use it at all. | + | Your author uses cloud init extensively and does not imagine a life without it. It is optional. The file used in these examples is available on request, but you should develop your own if you use it at all. |
- | == FAQ, NAQ (Never Asked Questions) == | + | === NAQ (Never Asked Questions) |
Q: Why does it use a self-signed certificate? | Q: Why does it use a self-signed certificate? |
/var/lib/dokuwiki/data/pages/cloud/intro.txt · Last modified: 2021/04/15 17:50 by chudler