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

[Thomas Heute]

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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>
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