Cloudbreak

• Website: https://hortonworks.com/open-source/cloudbreak/
• Documentation: https://docs.hortonworks.com/HDPDocuments/Cloudbreak/Cloudbreak-2.7.0/index.html

Local Development Setup

As of now this document is focusing on setting up your development environment on OSX. You'll need brew to install certain components in case you don't have them already. To get brew please follow the install instructions on the brew homepage: https://brew.sh

As a prerequisite you need to have Java 11 installed. You can get it from here.

You'll need Docker. For Mac, use Docker for mac.

Cloudbreak Deployer

The simplest way to setup the working environment to be able to start Cloudbreak on your local machine is to use the Cloudbreak Deployer.

First you need to create a sandbox directory which will store the necessary configuration files and dependencies of Cloudbreak Deployer. This directory must be created outside of the cloned Cloudbreak git repository:

mkdir cbd-local
cd cbd-local

The next step is to download the latest cloudbreak-deployer onto your machine:

curl -s https://raw.githubusercontent.com/hortonworks/cloudbreak-deployer/master/install-dev | sh && cbd --version

Add the following to the file named Profile under the cbd-local directory you have just created. Please note, when a cbd command is executed you should go to the deployment's directory where your Profile file could be found (cbd-local in our example). The CB_SCHEMA_SCRIPTS_LOCATION environment variable configures the location of SQL scripts that are in the 'core/src/main/resources/schema' directory in the cloned Cloudbreak git repository.
Please note that the full path needs to be configured and env variables like $USER cannot be used. You also have to set a password for your local Cloudbreak in UAA_DEFAULT_USER_PW:

export ULU_SUBSCRIBE_TO_NOTIFICATIONS=true
export CB_INSTANCE_UUID=$(uuidgen | tr '[:upper:]' '[:lower:]')
export CB_SCHEMA_SCRIPTS_LOCATION=/Users/YOUR_USERNAME/YOUR_PROJECT_DIR/cloudbreak/core/src/main/resources/schema
export UAA_DEFAULT_USER_PW=YOUR_PASSWORD
export VAULT_AUTO_UNSEAL=true

In order to run Cloudbreak, Periscope and Datalake from IDEA, put this into your Profile:

export CB_LOCAL_DEV_LIST=cloudbreak,periscope,datalake

Cloudbreak, Periscope and Datalake containers won't be started and Uluwatu will connect to java processes running on your host. You don't have to put all three containers into local-dev mode, the value of the variable could be any combination of these containers.

Then run these commands:

cbd start
cbd logs cloudbreak

In case you see org.apache.ibatis.migration.MigrationException at the end of the logs run these commands to fix the DB and the re-run the previous section(cbd start and logs):

cbd migrate cbdb up
cbd migrate cbdb pending

For some reason if you encounter a similar problem with Periscope or Datalake, then run the following commands and you can restart the Cloudbreak Deployer:

cbd migrate periscopedb up
cbd migrate periscopedb pending

cbd migrate datalakedb up
cbd migrate datalakedb pending

You can track the Periscope's logs to check the results by executing the following command:

cbd logs periscope

If everything went well then Cloudbreak will be available on http://localhost. For more details and config parameters please check the documentation of Cloudbreak Deployer.

The deployer has generated a certs directory under cbd-local directory which will be needed later on to set up IDEA properly.

Linux difference

cbd is unable to determine the IP address on a Linux machine. Therefore, you must add in the public IP address manually to your Profile.

export PUBLIC_IP=127.0.0.1

IDEA

Check out the Cloudbreak repository

Go to https://github.com/hortonworks/cloudbreak, Either clone or download the repository, use SSH which is described here: https://help.github.com/articles/connecting-to-github-with-ssh/

Project settings in IDEA

In IDEA set your SDK to your Java version under:

Set project SDK

File -> Project Structure -> Project Settings -> Project -> Project SDK -> 11

Set project Language level

File -> Project Structure -> Project Settings -> Project -> Project Language Level -> 11

Set Gradle JVM

IntelliJ IDEA -> Preferences -> Build, Execution, Deployment -> Gradle -> Gradle JVM -> 11

Import project

Cloudbreak can be imported into IDEA as gradle project by specifying the cloudbreak repo root under Import Project. Once it is done, you need to import the proper code formatter by using the File -> Import Settings... menu and selecting the idea_settings.jar located in the config/idea directory in Cloudbreak git repository.

Also you need to import inspection settings called inpsections.xml located in config/idea:

IntelliJ IDEA -> Preferences -> Editor -> Inspections -> Settings icon -> Import Profile

Running cloudbreak in IDEA

To launch the Cloudbreak application execute the com.sequenceiq.cloudbreak.CloudbreakApplication class (Set 'Use classpath of module' to core_main) with the following VM options:

-Dcb.client.id=cloudbreak
-Dcb.client.secret=CB_SECRET_GENERATED_BY_CBD
-Dcb.db.port.5432.tcp.addr=localhost
-Dcb.db.port.5432.tcp.port=5432
-Dcb.identity.server.url=http://localhost:8089
-Dspring.cloud.consul.host=YOUR_IP
-Dserver.port=9091
-Dcaas.url=localhost:10080
-Dvault.addr=localhost
-Dvault.root.token=<TOKEN_FROM_PROFILE_FILE>

The -Dcb.client.secret=CB_SECRET_GENERATED_BY_CBD value has to be replaced with the value of UAA_DEFAULT_SECRET from the cdb-local/Profile file. The database migration scripts run automatically by Cloudbreak by default, this migration can be turned off with the -Dcb.schema.migration.auto=false VM option.

Configure Before launch task

In order to be able to determine the local Cloudbreak version automatically, a Before launch task has to be configured for the project in IntelliJ Idea. The required steps are the following:

1. Open Run/Debug Configurations for the project
2. Select your project's application
3. Click on Add in the Before launch panel
4. Select Run Gradle Task with the following parameters
   1. Gradle project: cloudbreak:core
   2. Tasks: buildInfo
5. Confirm and restart the application

Running periscope in IDEA

After having imported cloudbreak repo root you can launch Periscope application by executing the com.sequenceiq.periscope.PeriscopeApplication class with the following VM options:

-Dperiscope.client.id=periscope
-Dperiscope.client.secret=PERISCOPE_SECRET_GENERATED_BY_CBD
-Dperiscope.identity.server.url=http://localhost:8089
-Dperiscope.db.port.5432.tcp.addr=localhost
-Dperiscope.db.port.5432.tcp.port=5432
-Dperiscope.cloudbreak.url=http://localhost:8080
-Dserver.port=8085
-Dcaas.url=localhost:10080
-Dvault.addr=localhost
-Dvault.root.token=<TOKEN_FROM_PROFILE_FILE>

The -Dperiscope.client.secret=PERISCOPE_SECRET_GENERATED_BY_CBD value has to be replaced with the value of UAA_DEFAULT_SECRET from the cdb-local/Profile file.

Running datalake in IDEA

After having imported cloudbreak repo root you can launch Datalake application by executing the com.sequenceiq.datalake.DatalakeApplication class with the following VM options:

-Dserver.port=8086
-Ddatalake.db.env.address=localhost
-Ddatalake.cloudbreak.url=http://localhost:8080

Command line

Cloudbreak

To run Cloudbreak from command line, you have to list the JVM parameters from above for gradle:

./gradlew :core:buildInfo :core:bootRun -PjvmArgs="-Dcb.client.id=cloudbreak \
-Dcb.client.secret=CB_SECRET_GENERATED_BY_CBD \
-Dcb.db.port.5432.tcp.addr=localhost \
-Dcb.db.port.5432.tcp.port=5432 \
-Dcb.identity.server.url=http://localhost:8089 \
-Dcb.schema.scripts.location=$(pwd)/core/src/main/resources/schema
-Dserver.port=9091 \
-Dcaas.url=localhost:10080
-Dvault.addr=localhost
-Dvault.root.token=<TOKEN_FROM_PROFILE_FILE>
-Dspring.config.location=$(pwd)/cloud-common/src/main/resources/application.yml,$(pwd)/core/build/resources/main/application.properties"

The -Dcb.client.secret=CB_SECRET_GENERATED_BY_CBD value has to be replaced with the value of UAA_DEFAULT_SECRET from the cdb-local/Profile file.

The database migration scripts run automatically by Cloudbreak by default, this migration can be turned off with the -Dcb.schema.migration.auto=false VM option.

Periscope

To run periscope from command line you have to run the below gradle command with the following list of JVM parameters:

./gradlew :autoscale:bootRun -PjvmArgs="-Dperiscope.client.id=periscope \
-Dperiscope.client.secret=CB_SECRET_GENERATED_BY_CBD \
-Dperiscope.identity.server.url=http://localhost:8089 \
-Dperiscope.db.port.5432.tcp.addr=localhost \
-Dperiscope.db.port.5432.tcp.port=5432 \
-Dperiscope.cloudbreak.url=http://localhost:8080 \
-Dperiscope.schema.scripts.location=$(pwd)/autoscale/src/main/resources/schema
-Dserver.port=8085 \
-Dcaas.url=localhost:10080
-Dvault.addr=localhost
-Dvault.root.token=<TOKEN_FROM_PROFILE_FILE>
-Dspring.config.location=$(pwd)/autoscale/src/main/resources/application.yml,$(pwd)/autoscale/build/resources/main/application.properties"

The -Dcb.client.secret=CB_SECRET_GENERATED_BY_CBD value has to be replaced with the value of UAA_DEFAULT_SECRET from the cdb-local/Profile file.

Datalake

To run datalake from command line you have to run the below gradle command with the following list of JVM parameters:

./gradlew :datalake:bootRun -PjvmArgs="-Ddatalake.db.env.address=localhost \
-Dserver.port=8086 \
-Ddatalake.cloudbreak.url=http://localhost:8080 \
-Dspring.config.location=$(pwd)/datalake/src/main/resources/application.yml,$(pwd)/datalake/build/resources/main/application.properties"

Database development

If any schema change is required in Cloudbreak database (cbdb), then the developer needs to write SQL scripts to migrate the database accordingly. The schema migration is managed by MYBATIS Migrations in Cloudbreak and the cbd tool provides an easy-to-use wrapper for it. The syntax for using the migration commands is cbd migrate <database name> <command> [parameters] e.g. cbd migrate migrate status.

Create a SQL template for schema changes:

cbd migrate cbdb new "CLOUD-123 schema change for new feature"

As as result of the above command an SQL file template is generated under the path specified in CB_SCHEMA_SCRIPTS_LOCATION environment variable, which is defined in Profile. The structure of the generated SQL template looks like the following:

-- // CLOUD-123 schema change for new feature
-- Migration SQL that makes the change goes here.



-- //@UNDO
-- SQL to undo the change goes here.

Once you have implemented your SQLs then you can execute them with:

cbd migrate cbdb up

Make sure pending SQLs to run as well:

cbd migrate cbdb pending

If you would like to rollback the last SQL file, then just use the down command:

cbd migrate cbdb down

On order to check the status of database

cbd migrate cbdb status

#Every script that has not been executed will be marked as ...pending... in the output of status command:

------------------------------------------------------------------------
-- MyBatis Migrations - status
------------------------------------------------------------------------
ID             Applied At          Description
================================================================================
20150421140021 2015-07-08 10:04:28 create changelog
20150421150000 2015-07-08 10:04:28 CLOUD-607 create baseline schema
20150507121756 2015-07-08 10:04:28 CLOUD-576 change instancegrouptype hostgroup to core
20151008090632    ...pending...    CLOUD-123 schema change for new feature

------------------------------------------------------------------------

Building

Gradle is used for build and dependency management. Gradle wrapper is added to Cloudbreak git repository, therefore building can be done with:

./gradlew clean build

How to use with DPS

Clone DPS repository from hortonworks/dps-platform

Put dps-platform path into your Profile:

export DPS_REPO=/Users/YOUR_USERNAME/DPS_PROJECT_DIR

By default it will build docker images from your dps-platform directory, but if you want to use a specific version of DPS you can put DPS_VERSION env variable into your Profile file. In this case it will download images from repository instead of build them.

export DPS_VERSION=2.0.0.0-132

If you want to force build the project with docker build use FORCE_BUILD env variable.

export FORCE_BUILD=true

Additional infos:

• Retrieve OAuth Bearer Token via Cloudbreak REST API
• Cloudbreak Service Provider Interface (SPI)