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More Networking Implementation

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ahmadbilalkhalid 2019-11-15 21:11:45 +05:00
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2
docs/source/introduction/installation.rst
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@ -7,7 +7,7 @@ Installation
The instructions assumes the following things
* User is **root**.
* Base Directory is `/root/`.
* Base Directory is :file:`/root/`.
Alpine
------

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docs/source/introduction/introduction.rst
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@ -1,5 +1,5 @@
Introduction
============
What is ucloud?
===============
**Open** + **Simple** + **Easy to hack** + **IPv6 First**
@ -18,6 +18,7 @@ Tech Stack
* QEMU (+ kvm acceleration) as hypervisor.
* etcd for key/value storage (specifically all metadata e.g Virtual Machine Specifications, Networks Specifications, Images Specifications etc.).
* Ceph for image storage.
* uotp for user authentication.
Components
----------

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docs/source/introduction/usage.rst
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@ -1,204 +0,0 @@
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