Red Hat
Feb 14, 2017
by noreply@hawkular.org (Heiko W. Rupp)

Hawkular services is a ready to run distribution of Hawkular-Metrics with Alerts, Inventory, the WildFly agent and other components. The version 0.32.0.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:

  • Official docker images (see below)

  • Agent version 0.27

  • Agent has a new flag 'immutable', that when set will prevent modifications of its config or running state altering operations. That flag can be set via -Dhawkular.agent.immutable=true

  • Hawkular-Metrics version 0.24.1

  • Better support for running on OpenShift

The following video gives a walk-through of some of the features

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_USERNAME="jdoe"
export HAWKULAR_PASSWORD="password"

cd "${HAWKULAR_HOME}"
"${HAWKULAR_HOME}/bin/add-user.sh" \
  -a \
  -u "${HAWKULAR_USERNAME}" \
  -p "${HAWKULAR_PASSWORD}" \
  -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://1.2.3.4:5432/hawkular \
    -Dhawkular.inventory.sql.jdbc.username=jdoe \
    -Dhawkular.inventory.sql.jdbc.password=password

To use a postgres database called hawkular on host 1.2.3.4 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 Docker builds

There are official Docker images of the release available on DockerHub at Hawkular services

The latest tag will always point to the latest release.

NOTE

There are also images with a devel tag, which are pushed by internal CI on individual commits.

Unofficial WildFly + agent

There is also an instrumented WildFly server available at 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.

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