def resize(self):
"""
:param task:
{
"command": "resize",
"handler": "TemplateHandler",
"data": {
# size is the add size, not disk size
"images": [
{
"disk_file": "",
"size": 50
},
{
"disk_file": "",
"size": 50
},
...
]
}
}
"""
logging.info("TemplateHandler, resize task begin, data:%s", self.task['data'])
images = self.task['data']['images']
ImageService().resize_disk(images)
def sync(self):
"""
:param task:
{
"command": "sync",
"handler": "TemplateHandler",
"data": {
"image_version": 1,
"task_id": "3r451518-2b92-11ea-a62d-000c29b3ddb9",
"endpoint": "http://controller:2222",
"url": "/api/v1/file",
"image":
{
"image_id": "1d07aaa0-2b92-11ea-a62d-000c29b3ddb9",
"disk_file": "",
"backing_file": "",
"dest_path": "",
"md5_sum": ""
}
}
}
"""
logging.info("TemplateHandler, sync task begin, data:%s", self.task['data'])
image = self.task['data']['image']
image_version = self.task['data']['image_version']
endpoint = self.task['data']['endpoint']
url = self.task['data']['url']
task_id = self.task['data'].get('task_id', None)
return ImageService(endpoint=endpoint).sync(url, image, image_version, task_id)
def create_file(self):
"""
:param task:
{
"command": "create_file",
"handler": "TemplateHandler",
"data": {
"file": "/opt/slow/version_1_fdafdsa",
"size": "50G"
}
}
"""
logging.info("TemplateHandler, create file task begin, data:%s", self.task['data'])
file = self.task['data']['file']
size = self.task['data']['size']
ImageService().create_qcow2_file(file, size)
def delete_base(self):
"""
删除基础镜像
:param task:
{
"command": "delete_base",
"handler": "TemplateHandler",
"data": {
"image":
{
"disk_file": ""
}
}
}
"""
logging.info("TemplateHandler, delete image base, data:%s", self.task['data'])
image = self.task['data']['image']
return ImageService().delete_image(image)
def write_header(self):
"""
write head to image file, contain vcpu, ram, md5 sum, the allocated system disk size
:param task:
{
"command": "write_header",
"handler": "TemplateHandler",
"data": {
"image_path": "",
"vcpu": 2,
"ram": 1.8,
"disk_size": 50
}
}
}
"""
logging.info("TemplateHandler, write head task begin, data:%s", self.task)
data = self.task['data']
return ImageService().write_header(data)
def convert(self):
"""
when copy a template, first generate a new base image(copy or merge the diff disk file)
:param task:
{
"command": "convert",
"handler": "TemplateHandler",
"data": {
"template": {
"uuid": "dfcd91e8-30ed-11ea-9764-111c2902e179",
"backing_file": "/opt/ssd"
"dest_file": "dfcd91e8-30ed-11ea-9764-000c2902e179"
"need_convert": 0
}
}
}
"""
logging.info("TemplateHandler, convert task begin, data:%s", self.task)
template = self.task['data']['template']
return ImageService().convert(template)
def copy(self):
"""
复制模板时，将模板的系统盘和数据盘复制一份，基础镜像不变
:param task:
{
"command": "copy",
"handler": "TemplateHandler",
"data": {
"image":
{
"image_id": "1d07aaa0-2b92-11ea-a62d-000c29b3ddb9",
"backing_file": "",
"dest_file": ""
}
}
}
"""
logging.info("TemplateHandler, copy task begin, data:%s", self.task['data'])
image = self.task['data']['image']
return ImageService().copy_images(image)
def recreate_disk(self):
"""
:param task:
{
"command": "save",
"handler": "TemplateHandler",
"data": {
"disks": [
{
"disk_file": "",
"backing_file": ""
},
...
]
}
}
"""
logging.info("TemplateHandler, recreate task begin, data:%s", self.task['data'])
disks = self.task['data']['disks']
ImageService().recreate_disks(disks)