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import rrd
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import time
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"""
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RRDTool graph output
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"""
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def timestamp () :
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return time.strftime("%Y/%m/%d %H:%M:%S %Z")
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def common_opts () :
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"""
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Common options for all views
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"""
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return dict(
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# output
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imgformat = "PNG",
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# lazy = True,
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color = [
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# disable border
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# border = 0,
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"SHADEA#ffffff00",
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"SHADEB#ffffff00",
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# keep background transparent
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"BACK#ffffff00",
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"SHADEB#ffffff00",
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],
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# labels
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vertical_label = "bits/s",
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units = "si",
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# use logarithmic scaling
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logarithmic = True,
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# smooth out lines
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slope_mode = True,
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)
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def overview_opts () :
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"""
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Common options for the overview graph
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"""
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return dict(
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width = 600,
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height = 50,
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), [
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"LINE1:in#0000FF:%4s" % "In",
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"LINE1:out#00CC00:%4s" % "Out",
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]
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def detail_opts () :
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"""
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Common options for the detail graph
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"""
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return dict(
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# dimensions
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width = 600,
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height = 200,
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), [
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# values
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'VDEF:in_max=in,MAXIMUM',
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'VDEF:in_avg=in,AVERAGE',
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'VDEF:in_min=in,MINIMUM',
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'VDEF:out_max=out,MAXIMUM',
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'VDEF:out_avg=out,AVERAGE',
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'VDEF:out_min=out,MINIMUM',
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# legend/graph
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"COMMENT:%4s" % "",
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"COMMENT:%11s" % "Maximum",
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"COMMENT:%11s" % "Average",
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"COMMENT:%11s\\l" % "Minimum",
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"LINE1:in#0000FF:%4s" % "In",
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'GPRINT:in_max:%6.2lf %Sbps',
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'GPRINT:in_avg:%6.2lf %Sbps',
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'GPRINT:in_min:%6.2lf %Sbps\\l',
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"LINE1:out#00CC00:%4s" % "Out",
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'GPRINT:out_max:%6.2lf %Sbps',
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'GPRINT:out_avg:%6.2lf %Sbps',
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'GPRINT:out_min:%6.2lf %Sbps\\l',
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# mark
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"COMMENT:Generated %s\\r" % timestamp().replace(':', '\\:'),
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]
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STYLE_DEFS = {
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'overview': overview_opts,
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'detail': detail_opts,
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}
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def daily_opts (title) :
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"""
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Common options for the 'daily' view
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"""
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return dict(
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# labels
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x_grid = "MINUTE:15:HOUR:1:HOUR:4:0:%H:%M",
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# general info
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title = "Daily %s" % (title, ),
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# interval
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start = "-24h",
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)
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def weekly_opts (title) :
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return dict(
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# labels
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# x_grid = "MINUTE:15:HOUR:1:HOUR:4:0:%H:%M",
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# general info
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title = "Weekly %s" % (title, ),
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# interval
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start = "-7d",
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)
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def yearly_opts (title) :
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return dict(
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# labels
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# x_grid = "MINUTE:15:HOUR:1:HOUR:4:0:%H:%M",
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# general info
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title = "Yearly %s" % (title, ),
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# interval
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start = "-1y",
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)
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INTERVAL_DEFS = {
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'daily': daily_opts,
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'weekly': weekly_opts,
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'yearly': yearly_opts,
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}
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def mrtg_data (rrd_path) :
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"""
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Data sources for network in/out from an MRTG rrd
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"""
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return [
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# data sources, bytes/s
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r'DEF:in0=%s:ds0:AVERAGE' % rrd_path,
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r'DEF:out0=%s:ds1:AVERAGE' % rrd_path,
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# data, bits/s
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'CDEF:in=in0,8,*',
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'CDEF:out=out0,8,*',
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]
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def mrtg (style, interval, title, rrd_path, out_path) :
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style_opts, style_vars = STYLE_DEFS[style]()
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interval_opts = INTERVAL_DEFS[interval](title)
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opts = rrd.merge_opts(common_opts(), style_opts, interval_opts)
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data = mrtg_data(rrd_path) + style_vars
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return rrd.graph(out_path, *data, **opts)
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