[Hawkular-dev] major progress to report - prometheus-hawkular integration is working

[Joel Takvorian]

It's not ready end-to-end yet. The work with prometheus hasn't started yet
on MiQ / ruby client afaik.

On Fri, Nov 3, 2017 at 9:42 AM, Thomas Heute <theute at redhat.com> wrote:

> Nice ! Thanks for the report.
>
> Can we see the inventory in ManageIQ ? ie: does it work end-to-end ?
>
> Can we have a demo ? (Live or recorded)
>
> Thomas
>
> On Fri, Nov 3, 2017 at 12:54 AM, John Mazzitelli <mazz at redhat.com> wrote:
>
>> The team can report a pretty good milestone as of today. We have
>> Prometheus linked with Hawkular in a nice way. Not fully integrated (we
>> don't have, say, a single image with everything) but works pretty good for
>> now.
>>
>> Here's some details on how to demo this (you should have
>> hawkular-services repo git cloned locally and the hawkular-1275 branch
>> checked out):
>>
>> 1) Build hawkular-services dist with -Pdev - we will run it from the
>> target/ directory in the next step:
>>
>> mvn clean install -Pdev
>>
>> 2) Run Hawkular-Services:
>>
>> hawkular-services/dist/target/hawkular-services-dist-*/bin/standalone.sh
>> -b 0.0.0.0
>>
>> 3) Run Prometheus configured to scan our hawkular metrics endpoints - we
>> have a test script that runs a pre-configured Prometheus in a docker
>> container:
>>
>> hawkular-services/dist/src/test/scripts/run-prometheus.sh
>>
>> OK, that's it. You are ready to see inventory and metrics.
>>
>> At this point your server is running and an agent is running with it. We
>> have an agent attached to h-services so the agent can monitor the server.
>>
>> The agent itself has a prometheus metrics endpoint exposed via built-in
>> jmx exporter. You can see the raw data from the agent if you point your
>> browser to http://localhost:9779/metrics.
>>
>> After you give it some time, the agent will report all inventory up to
>> the server. The server will also create a Prometheus scrape configuration
>> file to tell Prometheus where the agent's metrics endpoint is. The
>> pre-configured Prometheus discovers any new scrape configuration files as
>> new agents come online. So without doing anything manually, Prometheus will
>> immediately start collecting metrics data from agents as they come online.
>>
>> You can see the inventory in our little inventory UI - point your browser
>> to http://localhost:8080/hawkular/inventory/ui and look at the tree of
>> resources.
>>
>> Now for the Prometheus integration - click on a resource in the inventory
>> UI's left-hand tree, pick a resource that has metrics (say, "[WildFly
>> Server] Local"). On the right side, you'll see the default base URL for
>> prometheus listed as "http://localhost:9090" in a text field - you can
>> leave that as-is or edit it if you need to. But this is referring to the
>> Prometheus you started in step 3 above. Now drop down the Metrics menu and
>> pick a metric. The browser opens a tab and takes you to the metric graph in
>> Prometheus. You should see data.
>>
>> What does all of this get you? Well, normally Prometheus data isn't
>> organized by associated resources - its just a long list of labeled metrics
>> that you have to make sense out of in order to organize the metrics
>> yourself. Hawkular gives you a nice inventory view (your hierarchy of
>> resources) that does this organization of Prometheus metrics for you. So
>> while Prometheus gives you metric data and pretty graphs, Hawkular
>> "organizes" those metrics by grouping them with their associated resources
>> in hierarchical inventory view.
>>
>> --John Mazz
>>
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>> hawkular-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/hawkular-dev
>>
>>
>>
>
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