202 lines
4.6 KiB
ReStructuredText
202 lines
4.6 KiB
ReStructuredText
Usage
|
|
=====
|
|
|
|
Start API
|
|
----------
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud api
|
|
|
|
Host Creation
|
|
-------------
|
|
|
|
Currently, we don't have any host (that runs virtual machines).
|
|
So, we need to create it by executing the following command
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud-cli host create --hostname ungleich.ch --cpu 32 --ram '32GB' --os-ssd '32GB'
|
|
|
|
You should see something like the following
|
|
|
|
.. code-block:: json
|
|
|
|
{
|
|
"message": "Host Created"
|
|
}
|
|
|
|
Start Scheduler
|
|
---------------
|
|
Scheduler is responsible for scheduling VMs on appropriate host.
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud scheduler
|
|
|
|
Start Host
|
|
----------
|
|
Host is responsible for handling the following actions
|
|
|
|
* Start VM.
|
|
* Stop VM.
|
|
* Create VM.
|
|
* Delete VM.
|
|
* Migrate VM.
|
|
* Manage Network Resources needed by VMs.
|
|
|
|
It uses a hypervisor such as QEMU to perform these actions.
|
|
|
|
To start host we created earlier, execute the following command
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud host ungleich.ch
|
|
|
|
Create OS Image
|
|
---------------
|
|
First, we need to upload the file.
|
|
|
|
.. code-block:: sh
|
|
|
|
mkdir /var/www/admin
|
|
(cd /var/www/admin && wget http://[2a0a:e5c0:2:12:0:f0ff:fea9:c3d9]/alpine-untouched.qcow2)
|
|
|
|
Run File Scanner and Image Scanner
|
|
------------------------------------
|
|
Currently, our uploaded file *alpine-untouched.qcow2* is not tracked by ucloud. We can only make
|
|
images from tracked files. So, we need to track the file by running File Scanner
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud filescanner
|
|
|
|
File Scanner would run, scan your uploaded image and track it. You can check whether your image
|
|
is successfully tracked by executing the :code:`ucloud-cli user files`, It will return something like the following
|
|
|
|
.. _list-user-files:
|
|
|
|
.. code-block:: json
|
|
|
|
{
|
|
"message": [
|
|
{
|
|
"filename": "alpine-untouched.qcow2",
|
|
"uuid": "3f75bd20-45d6-4013-89c4-7fceaedc8dda"
|
|
}
|
|
]
|
|
}
|
|
|
|
Our file is now being tracked by ucloud. Lets create an OS image using the uploaded file.
|
|
|
|
An image belongs to an image store. There are two types of store
|
|
|
|
* Public Image Store
|
|
* Private Image Store (Not Implemented Yet)
|
|
|
|
.. note::
|
|
**Quick Quiz** Have we create an image store yet?
|
|
|
|
The answer is **No, we haven't**. Creating an example image store is very easy.
|
|
Just execute the following command
|
|
|
|
.. code-block:: sh
|
|
|
|
pipenv run python ~/ucloud/api/create_image_store.py
|
|
|
|
An image store (with name = "images") would be created. Now, we are fully ready for creating our
|
|
very own image. Executing the following command to create image using the file uploaded earlier
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud-cli image create-from-file --name alpine --uuid 3f75bd20-45d6-4013-89c4-7fceaedc8dda --image-store-name images
|
|
|
|
Please note that your **uuid** would be different. See :ref:`List of user files <list-user-files>`.
|
|
|
|
Now, ucloud have received our request to create an image from file. We have to run Image Scanner to make the image.
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud imagescanner
|
|
|
|
To make sure, that our image is create run :code:`ucloud-cli image list --public`. You would get
|
|
output something like the following
|
|
|
|
.. code-block:: json
|
|
|
|
{
|
|
"images": [
|
|
{
|
|
"name": "images:alpine",
|
|
"status": "CREATED"
|
|
}
|
|
]
|
|
}
|
|
|
|
Create VM
|
|
---------
|
|
|
|
The following command would create a Virtual Machine (name: meow) with following specs
|
|
|
|
* CPU: 1
|
|
* RAM: 1GB
|
|
* OS-SSD: 4GB
|
|
* OS: Alpine Linux
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud-cli vm create --vm-name meow --cpu 1 --ram '1gb' --os-ssd '4gb' --image images:alpine
|
|
|
|
Check VM Status
|
|
---------------
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud-cli vm status --vm-name meow
|
|
|
|
|
|
.. code-block:: json
|
|
|
|
{
|
|
"hostname": "/v1/host/74c21c332f664972bf5078e8de080eea",
|
|
"image_uuid": "3f75bd20-45d6-4013-89c4-7fceaedc8dda",
|
|
"in_migration": null,
|
|
"log": [
|
|
"2019-11-12T09:11:09.800798 - Started successfully"
|
|
],
|
|
"metadata": {
|
|
"ssh-keys": []
|
|
},
|
|
"name": "meow",
|
|
"network": [],
|
|
"owner": "admin",
|
|
"owner_realm": "ungleich-admin",
|
|
"specs": {
|
|
"cpu": 1,
|
|
"hdd": [],
|
|
"os-ssd": "4.0 GB",
|
|
"ram": "1.0 GB"
|
|
},
|
|
"status": "RUNNING",
|
|
"vnc_socket": "/tmp/tmpj1k6sdo_"
|
|
}
|
|
|
|
Create Network
|
|
--------------
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud-cli network create --network-name mynet --network-type vxlan
|
|
|
|
|
|
.. code-block:: json
|
|
|
|
{
|
|
"message": "Network successfully added."
|
|
}
|
|
|
|
Create VM using this network
|
|
|
|
.. code-block:: sh
|
|
|
|
ucloud-cli vm create --vm-name meow2 --cpu 1 --ram '1gb' --os-ssd '4gb' --image images:alpine --network mynet
|