meow
93dee1c9fc
1. User can now use image name instead of image uuid when creation vm.
For Example, now user can create an alpine vm using the following
command
```shell
ucloud-cli vm create --vm-name myvm --cpu 2 --ram '2GB' \
--os-ssd '10GB' --image images:alpine
```
2. Instead of directly running code, code is now placed under a function
main and is called using the following code
```python
if __name__ == "__main__":
main()
```
3. Multiprocess (Process) is used instead of threading (Thread) to update
heart beat of host.
4. IP Address of vm is included in vm's status which is retrieved by the
following command
```shell
ucloud-cli vm status --vm-name myvm
```
114 lines
No EOL
4.2 KiB
Python
Executable file
114 lines
No EOL
4.2 KiB
Python
Executable file
import os
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import json
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import subprocess
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import sys
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from config import (logging, client, IMAGE_DIR,
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BASE_PATH, WITHOUT_CEPH,
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IMAGE_PREFIX, IMAGE_STORE_PREFIX)
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def qemu_img_type(path):
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qemu_img_info_command = ["qemu-img", "info", "--output", "json", path]
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try:
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qemu_img_info = subprocess.check_output(qemu_img_info_command)
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except Exception as e:
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logging.exception(e)
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return None
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else:
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qemu_img_info = json.loads(qemu_img_info.decode("utf-8"))
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return qemu_img_info["format"]
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def main():
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# If you are using WITHOUT_CEPH FLAG in .env
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# then please make sure that IMAGE_DIR directory
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# exists otherwise this script would fail
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if WITHOUT_CEPH and not os.path.isdir(IMAGE_DIR):
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print("You have set WITHOUT_CEPH to True. So,"
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"the {} must exists. But, it don't".format(IMAGE_DIR))
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sys.exit(1)
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try:
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subprocess.check_output(['which', 'qemu-img'])
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except Exception:
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print("qemu-img missing")
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sys.exit(1)
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# We want to get images entries that requests images to be created
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images = client.get_prefix(IMAGE_PREFIX, value_in_json=True)
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images_to_be_created = list(filter(lambda im: im.value['status'] == 'TO_BE_CREATED', images))
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for image in images_to_be_created:
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try:
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image_uuid = image.key.split('/')[-1]
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image_owner = image.value['owner']
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image_filename = image.value['filename']
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image_store_name = image.value['store_name']
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image_full_path = os.path.join(BASE_PATH, image_owner, image_filename)
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image_stores = client.get_prefix(IMAGE_STORE_PREFIX, value_in_json=True)
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user_image_store = next(filter(
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lambda s, store_name=image_store_name: s.value["name"] == store_name,
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image_stores
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))
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image_store_pool = user_image_store.value['attributes']['pool']
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except Exception as e:
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logging.exception(e)
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else:
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# At least our basic data is available
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qemu_img_convert_command = ["qemu-img", "convert", "-f", "qcow2",
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"-O", "raw", image_full_path, "image.raw"]
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if WITHOUT_CEPH:
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image_import_command = ["mv", "image.raw", os.path.join(IMAGE_DIR, image_uuid)]
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snapshot_creation_command = ["true"]
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snapshot_protect_command = ["true"]
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else:
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image_import_command = ["rbd", "import", "image.raw",
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"{}/{}".format(image_store_pool, image_uuid)]
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snapshot_creation_command = ["rbd", "snap", "create",
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"{}/{}@protected".format(image_store_pool, image_uuid)]
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snapshot_protect_command = ["rbd", "snap", "protect",
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"{}/{}@protected".format(image_store_pool, image_uuid)]
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# First check whether the image is qcow2
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if qemu_img_type(image_full_path) == "qcow2":
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try:
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# Convert .qcow2 to .raw
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subprocess.check_output(qemu_img_convert_command)
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# Import image either to ceph/filesystem
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subprocess.check_output(image_import_command)
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# Create and Protect Snapshot
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subprocess.check_output(snapshot_creation_command)
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subprocess.check_output(snapshot_protect_command)
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except Exception as e:
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logging.exception(e)
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else:
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# Everything is successfully done
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image.value["status"] = "CREATED"
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client.put(image.key, json.dumps(image.value))
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else:
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# The user provided image is either not found or of invalid format
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image.value["status"] = "INVALID_IMAGE"
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client.put(image.key, json.dumps(image.value))
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try:
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os.remove("image.raw")
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except Exception:
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pass
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if __name__ == "__main__":
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main() |