snapomatic.cg

#! /usr/bin/python3
import sys
pythonversion=sys.version_info
if pythonversion[0] != 3 or pythonversion[1] < 6:
    print("This script requires Python 3.6 or higher")
    sys.exit(1)
import os
import getopt
sys.path.append(sys.path[0] + "/NTAPlib")
from cloneVolumes import cloneVolumes
from getCGs import getCGs
import userio

snapomaticversion='dev'

validoptions={'clone' : {'target':'multistr', \
                         'name':'str', \
                         'snapshot':'str', \
                         'split':'bool', \
                         'debug':'bool', \
                         'restdebug':'bool'}, \
              'show' : {'target':'multistr', \
                        'cg':'bool', \
                        'debug':'bool', \
                        'restdebug':'bool'}}

requiredoptions={'clone':['target','name'], \
                 'show':['target']}

usage="Version " + snapomaticversion + "\n" + \
      "cg show\n" + \
      "          --target\n" + \
      "          (syntax: svm cg(s))\n\n" + \
      "cg clone\n" + \
      "          --target\n" + \
      "          (svm )\n\n" + \
      "          --name\n" + \
      "          (name for the clone)\n\n" + \
      "          --snapshot\n" + \
      "          (OPTIONAL: name of the parent snapshot)\n\n" + \
      "          --split\n" + \
      "          (OPTIONAL: split the clone from parent)\n\n" + \
      "          [--debug]\n" + \
      "          (show debug output)\n\n" + \
      "          [--restdebug]\n" + \
      "          (show REST API calls and responses)\n\n"

myopts=userio.validateoptions(sys.argv,validoptions,usage=usage,required=requiredoptions)

try:
    snapshot=myopts.snapshot
except:
    snapshot=False
try:
    split=myopts.split
except:
    split=False

try:
    name=myopts.name
except:
    pass

debug=0
if myopts.debug:
    debug=debug+1

if myopts.restdebug:
    debug=debug+2

try:
    cg=myopts.cg
except:
    cg=False

svm=myopts.target[0]
if len(myopts.target) == 1:
    cgs='*'
else:
    cgs=myopts.target[1:]

if myopts.mode == 'clone':
    if not len(myopts.target) == 2:
        userio.fail(usage)
    else:
        cgs=myopts.target[1]

if myopts.mode == 'show':
    knowncgs=getCGs(svm,name=cgs,debug=debug)
    if not knowncgs.go():
        userio.message(knowncgs.reason)
        sys.exit(1)
    else:
        grid=[['CG','Parent','Children','Volume','Size (GB)','Aggregate']]
        cglist=list(knowncgs.cgs.keys())
        cglist.sort()
        for cg in cglist:
            try:
                parentfield=knowncgs.cgs[cg]['parent']
            except:
                parentfield='-'
            try:
                childrenfield=join(','),knowncgs.cgs[cg]['children']
            except:
                childrenfield='-'
            volumelist=knowncgs.cgs[cg]['volumes']
            volumelist.sort()
            for volume in volumelist:
                grid.append([cg,
                             parentfield,
                             childrenfield,
                             volume,
                             str(knowncgs.volumes[volume]['size']/1048576),
                             knowncgs.volumes[volume]['aggrs'],
                             ])
        userio.grid(grid)

elif myopts.mode == 'clone':
    if snapshot:
        clone=cloneVolumes(svm,(volume,name,snapshot),split=split,debug=debug)
    else:
        clone=cloneVolumes(svm,(volume,name),split=split,debug=debug)
    if not clone.go():
        userio.message(clone.reason)
        sys.exit(1)
    else:
        message="Cloned "
        if split and name not in clone.unsplit:
            message = message + "and split "
        message=message + name + " from " + volume 
        if snapshot:
            message=message + ":" + snapshot
        userio.message(message)
        sys.exit(0)