Hawkular Services 0.30.0.Final

A blog post by Heiko W. Rupp

hawkular-services | release

Hawkular services is a ready to run distribution of Hawkular-Metrics with Alerts, Inventory, the WildFly agent and other components. The version 0.30.0.Final has just been released and is ready to be tested and integrated with other projects.

What’s in this release

This release includes those changes:

  • The WildFly agent now supports EAP 6(.4). See Subtasks of HAWKULAR-1175

  • An Event is forwarded to subscribed clients (like ManageIQ) when a new WildFly server connects for the first time. See HAWKULAR-1188

  • Number of threads created by ActiveMQ are now limited to 30 to prevent start issues by running into file descriptor limits.

Hawkular Services is released every week on Tuesdays.

Get started

To get started with Hawkular Services, download the latest release, unzip it, add a user and set the Agent to use the credentials for the user just added.

It can be accomplished with the following commands:

export HAWKULAR_HOME="/path/to/hawkular-services"
export HAWKULAR_PASSWORD="password"

"${HAWKULAR_HOME}/bin/add-user.sh" \
  -a \
  -g read-write,read-only
"${HAWKULAR_HOME}/bin/standalone.sh" -Dhawkular.rest.user="${HAWKULAR_USERNAME}" -Dhawkular.rest.password="${HAWKULAR_PASSWORD}"

Before starting the server, you need to have Cassandra 3.0.9 up and running with the RPC port enabled either via setting the env variable of CASSANDRA_START_RPC to true

or by editing cassandra.yml and setting it there:

# Whether to start the thrift rpc server.
start_rpc: true

Using ccm you can use this to update the config: ccm updateconf 'start_rpc: true'. Another option is via nodetool enablethrift.

Using Postgres

To use Postgres as backend you need to pass additional properties to the standalone.sh command above:

"${HAWKULAR_HOME}/bin/standalone.sh" -Dhawkular.rest.user="${HAWKULAR_USERNAME}" \
    -Dhawkular.rest.password="${HAWKULAR_PASSWORD} \
    -Dhawkular.inventory.sql.jdbc.url=jdbc:postgresql:// \
    -Dhawkular.inventory.sql.jdbc.username=jdoe \

To use a postgres database called hawkular on host owned by a user jdoe with a password of password.

Build from master and Cassandra

If you build from master, you can pass -Pembeddedc to get a distribution with embedded Cassandra for local development. Similarly if you build via -Pdev a default user of jdoe/password will be installed and also be used with the agent.

Use Grafana with Hawkular-services

We do now have a Grafana datasource to make it easier to connect to Hawkular-services from Grafana. You can download it from Grafana.net. The website of the datasource tells more.

Get started via (inofficial) Docker builds

There are inofficial Docker images of the release and also an instrumented WildFly available on DockerHub at Hawkular services and Instrumented WildFly.

Both images have been instrumented with the jdoe/password user for the Hawkular server and the agent.

See also http://pilhuhn.blogspot.de/2016/06/using-hawkular-services-via-docker.html on some more details about using those images.

Published by Heiko W. Rupp on 31 January 2017


© 2016 | Hawkular is released under Apache License v2.0