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Added ChartJS

This commit is contained in:
Retspen 2015-03-19 15:37:16 +02:00
parent 02ae7336ea
commit 02570cd826
5 changed files with 187 additions and 4 deletions

View file

@ -1,4 +1,6 @@
from django.http import HttpResponseRedirect
import time
import json
from django.http import HttpResponse, HttpResponseRedirect
from django.core.urlresolvers import reverse
from django.shortcuts import render
from computes.models import Compute
@ -127,6 +129,7 @@ def computes(request):
error_messages.append(msg_err.as_text())
return render(request, 'computes.html', locals())
def overview(request, compute_id):
"""
:param request:
@ -154,4 +157,69 @@ def overview(request, compute_id):
except libvirtError as lib_err:
error_messages.append(lib_err)
return render(request, 'overview.html', locals())
return render(request, 'overview.html', locals())
def compute_graph(request, compute_id):
"""
:param request:
:return:
"""
if not request.user.is_authenticated():
return HttpResponseRedirect(reverse('login'))
points = 5
datasets = {}
cookies = {}
compute = Compute.objects.get(id=compute_id)
curent_time = time.strftime("%H:%M:%S")
try:
conn = wvmHostDetails(compute.hostname,
compute.login,
compute.password,
compute.type)
cpu_usage = conn.get_cpu_usage()
mem_usage = conn.get_memory_usage()
conn.close()
except libvirtError:
cpu_usage = 0
mem_usage = 0
try:
cookies['cpu'] = request.COOKIES['cpu']
cookies['mem'] = request.COOKIES['mem']
cookies['timer'] = request.COOKIES['timer']
except KeyError:
cookies['cpu'] = None
cookies['mem'] = None
if not cookies['cpu'] and not cookies['mem']:
datasets['cpu'] = [0]
datasets['mem'] = [0]
datasets['timer'] = [curent_time]
else:
datasets['cpu'] = eval(cookies['cpu'])
datasets['mem'] = eval(cookies['mem'])
datasets['timer'] = eval(cookies['timer'])
datasets['timer'].append(curent_time)
datasets['cpu'].append(int(cpu_usage['usage']))
datasets['mem'].append(int(mem_usage['usage']) / 1048576)
if len(datasets['timer']) > points:
datasets['timer'].pop(0)
if len(datasets['cpu']) > points:
datasets['cpu'].pop(0)
if len(datasets['mem']) > points:
datasets['mem'].pop(0)
data = json.dumps({'cpudata': datasets['cpu'], 'memdata': datasets['mem'], 'timeline': datasets['timer']})
response = HttpResponse()
response['Content-Type'] = "text/javascript"
response.cookies['cpu'] = datasets['cpu']
response.cookies['timer'] = datasets['timer']
response.cookies['mem'] = datasets['mem']
response.write(data)
return response

View file

@ -141,4 +141,8 @@ p {
#undefine {
margin-top: 20px;
}
.flot-chart {
max-height: 250px;
}

11
static/js/Chart.min.js vendored Normal file

File diff suppressed because one or more lines are too long

View file

@ -29,7 +29,8 @@
{% include 'errors_block.html' %}
<div class="row">
<div class="row" id="max-width-page">
<h3 class="page-header">{% trans "Basic details" %}</h3>
<div class="col-xs-4 col-sm-3">
<p>{% trans "Hostname" %}</p>
<p>{% trans "Hypervisor" %}</p>
@ -49,4 +50,103 @@
<p>{{ uri_conn }}</p>
</div>
</div>
<div class="row" id="max-width-page">
<div class="col-lg-12">
<h3 class="page-header">{% trans "Performance" %}</h3>
<div class="panel panel-success">
<div class="panel-heading">
<h3 class="panel-title"><i class="fa fa-long-arrow-right"></i> {% trans "CPU usage" %}</h3>
</div>
<div class="panel-body">
<div class="flot-chart">
<div class="flot-chart-content" id="flot-moving-line-chart" style="padding: 0px; position: relative;">
<canvas id="cpuChart" width="735" height="250"></canvas>
</div>
</div>
</div>
</div>
<div class="panel panel-info">
<div class="panel-heading">
<h3 class="panel-title"><i class="fa fa-long-arrow-right"></i> {% trans "RAM usage" %}</h3>
</div>
<div class="panel-body">
<div class="flot-chart">
<div class="flot-chart-content" id="flot-moving-line-chart" style="padding: 0px; position: relative;">
<canvas id="memChart" width="735" height="250"></canvas>
</div>
</div>
</div>
</div>
</div>
</div>
{% endblock %}
{% block script %}
<script src="{{ STATIC_URL }}/js/Chart.min.js"></script>
<script>
var cpuLineData = {
labels : [0, 0, 0, 0, 0],
datasets : [
{
fillColor: "rgba(241,72,70,0.5)",
strokeColor: "rgba(241,72,70,1)",
pointColor : "rgba(241,72,70,1)",
pointStrokeColor : "#fff",
pointHighlightFill : "#fff",
pointHighlightStroke : "rgba(220,220,220,1)",
data : [0, 0, 0, 0, 0]
}
]
}
var cpu_ctx = document.getElementById("cpuChart").getContext("2d");
var cpuChart = new Chart(cpu_ctx).Line(cpuLineData, {
animation: false,
pointDotRadius: 2,
scaleLabel: "<%=value%> %",
scaleOverride: true,
scaleSteps: 10,
scaleStepWidth: 10,
scaleStartValue: 0,
responsive: true
});
var memLineData = {
labels : [0, 0, 0, 0, 0],
datasets : [
{
fillColor : "rgba(249,134,33,0.5)",
strokeColor : "rgba(249,134,33,1)",
pointColor : "rgba(249,134,33,1)",
pointStrokeColor : "#fff",
pointHighlightFill : "#fff",
pointHighlightStroke : "rgba(151,187,205,1)",
data : [0, 0, 0, 0, 0]
}
]
}
var mem_ctx = $("#memChart").get(0).getContext("2d");
var memChart = new Chart(mem_ctx).Line(memLineData, {
animation: false,
pointDotRadius: 2,
scaleLabel: "<%=value%> Mb",
responsive: true
});
function hostusage() {
$.getJSON('{% url 'compute_graph' compute_id %}', function (data) {
cpuChart.scale.xLabels = data.timeline;
memChart.scale.xLabels = data.timeline;
for (var i = 0; i < 5; i++) {
cpuChart.datasets[0].points[i].value = data.cpudata[i];
memChart.datasets[0].points[i].value = data.memdata[i];
}
cpuChart.update();
memChart.update();
});
}
$(function () {
window.setInterval('hostusage()', 4000);
});
</script>
{% endblock %}

View file

@ -26,7 +26,7 @@ urlpatterns = patterns('',
url(r'^compute/secret/(\d+)/$', 'secrets.views.secrets', name='secrets'),
url(r'^compute/statistics/(\d+)/$', 'computes.views.compute_graph', name='compute_graph'),
url(r'^console/$', 'console.views.console', name='console'),
url(r'^create/(\d+)/$', 'create.views.create_instance', name='create_instance'),