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https://github.com/retspen/webvirtcloud
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cfce71ec2b
* Add rest framework for API: First Commit * modify some shell scripts to make variable references safer; modify some python scripts to reduce the code complexity and cyclomatic complexity of functions. * Add REST API for some webvirtcloud functions. Instance list/delete/create, compute list/delete/create, storages-network list/retrieve. Add swagger and redoc for API interface * update requirements Co-authored-by: herengui <herengui@uniontech.com>
66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
import time
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from vrtManager.connection import wvmConnect
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from vrtManager.util import get_xml_path
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def cpu_version(doc):
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for info in doc.xpath("/sysinfo/processor/entry"):
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elem = info.xpath("@name")[0]
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if elem == "version":
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return info.text
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return "Unknown"
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class wvmHostDetails(wvmConnect):
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def get_memory_usage(self):
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"""
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Function return memory usage on node.
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"""
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all_mem = self.wvm.getInfo()[1] * 1048576
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freemem = self.wvm.getMemoryStats(-1, 0)
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if isinstance(freemem, dict):
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free = (freemem["buffers"] + freemem["free"] + freemem["cached"]) * 1024
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percent = abs(100 - free * 100 // all_mem)
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usage = all_mem - free
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return {"total": all_mem, "usage": usage, "percent": percent}
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else:
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return {"total": None, "usage": None, "percent": None}
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def get_cpu_usage(self):
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"""
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Function return cpu usage on node.
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"""
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prev_idle = 0
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prev_total = 0
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cpu = self.wvm.getCPUStats(-1, 0)
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if not isinstance(cpu, dict):
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return {"usage": None}
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for num in range(2):
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idle = self.wvm.getCPUStats(-1, 0)["idle"]
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total = sum(self.wvm.getCPUStats(-1, 0).values())
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diff_idle = idle - prev_idle
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diff_total = total - prev_total
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diff_usage = (1000 * (diff_total - diff_idle) /
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diff_total + 5) / 10
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prev_total = total
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prev_idle = idle
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if num == 0:
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time.sleep(1)
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else:
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diff_usage = max(diff_usage, 0)
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return {"usage": diff_usage}
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def get_node_info(self):
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"""
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Function return host server information: hostname, cpu, memory, ...
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"""
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info = [self.wvm.getHostname()] # hostname
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info.append(self.wvm.getInfo()[0]) # architecture
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info.append(self.wvm.getInfo()[1] * 1048576) # memory
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info.append(self.wvm.getInfo()[2]) # cpu core count
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info.append(get_xml_path(self.wvm.getSysinfo(0), func=cpu_version)) # cpu version
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info.append(self.wvm.getURI()) # uri
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return info
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