<commit_before>---
title: OVirt Engine Development Environment
category: engine
authors: alonbl, amureini, arik, didi, dougsland, ecohen, gchaplik, gshereme, mkolesni,
  moolit, mperina, msivak, nsoffer, ofri, roy, smizrahi, tsaban, vered, vitordelima,
  vszocs, <NAME>, ykleinbe
wiki_category: Engine
wiki_title: OVirt Engine Development Environment
wiki_revision_count: 93
wiki_last_updated: 2015-05-26
---

# OVirt Engine Development Environment

## Development Environment

<b>Please notice:</b> Most updated certified documentation is available within source tree at [README.developer](http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=README.developer;hb=HEAD).

This page is mostly to absorb community experience into the certified procedures.

### Prerequisites

#### RPM based

##### Set up snapshot repository

###### Automatically

`# yum install `[`http://resources.ovirt.org/pub/yum-repo/ovirt-releaseXY.rpm`](http://resources.ovirt.org/pub/yum-repo/ovirt-releaseXY.rpm)

This will not work for master, as it is available after release.

###### Manually

Create `/etc/yum.repos.d/ovirt-snapshots.repo`, replace `@distro@` with `fc` for Fedora or `el` for RHEL or equivalent distribution.

      [ovirt-snapshots]
      name=local
      baseurl=http://resources.ovirt.org/pub/ovirt-master-snapshot/rpm/@distro@$releasever
      enabled=1
      gpgcheck=0
      priority=10
      [ovirt-snapshots-static]
      name=local
      baseurl=http://resources.ovirt.org/pub/ovirt-master-snapshot-static/rpm/@distro@$releasever
      enabled=1
      gpgcheck=0
      priority=10

##### Setup PatternFly repository

Create `/etc/yum.repos.d/patternfly.repo` and copy/paste the contents of correct file for your distro from [PatternFly Repos on copr](https://copr.fedoraproject.org/coprs/patternfly/patternfly1).

##### Install 3rd party packages

      # yum install git java-devel maven openssl postgresql-server \
          m2crypto python-psycopg2 python-cheetah python-daemon libxml2-python \
          unzip patternfly1

###### Fedora

      # yum install jboss-as

ovirt-engine doesn't work with jboss-as >= 8.0 (wildfly) on Fedora 20. To work aroud this issue, when using Fedora 20, do the following instead:

      # wget http://download.jboss.org/jbossas/7.1/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final.zip
      # unzip jboss-as-7.1.1.Final -d /usr/share

###### RHEL

Option 1, setup jboss channel, and install downstream jboss, JBOSS_HOME will be /usr/share/jbossas.

      # yum install jbossas-standalone jbossas-bundles jbossas-modules-eap

Option 2, setup jboss upstream, download jboss-as-7.1.1 from [jboss site](http://www.jboss.org/jbossas/downloads/) and extract to $HOME. JBOSS_HOME will be ${HOME}/jboss-as-<version>...

##### Install ovirt packages

      # yum install ovirt-host-deploy

##### Setup Java

Make sure openjdk is the java preferred:

      # alternatives --config java
      # alternatives --config javac

Note: javassit used in some of the unit tests hits a regression introduced in java-1.7.0-openjdk-1.7.0.65. In order to avoid this issue, you can downgrade to java-1.7.0-openjdk-1.7.0.60.

#### Debian based

Install 3rd party packages:

      # apt-get install git openjdk-7-jdk maven openssl postgresql \
          python-m2crypto python-psycopg2 python-cheetah python-daemon \
          jboss-as unzip

Download PatternFly from [PatternFly releases](https://github.com/patternfly/patternfly/releases/tag/v1.0.5) and extract to $HOME/patternfly

Download jboss-as-7.1.1 from [jboss site](http://www.jboss.org/jbossas/downloads/) and extract to $HOME.

Install ovirt packages:

       TODO

Make sure openjdk is the java preferred:

      # update-alternatives --config java

#### Database

Based on your distribution it may be that you require to initialize the database.

      Fedora: # postgresql-setup initdb
      RHEL:   # /etc/init.d/postgresql initdb
      Gentoo: # emerge --config postgresql-server

Configure PostgreSQL to accept network connection by locating `pg_hba.conf` file, locations includes:

|-------------|--------------------------------------|
| Fedora,RHEL | /var/lib/pgsql/data/pg_hba.conf     |
| Debian      | /etc/postgresql/\*/main/pg_hba.conf |
| Gentoo      | /etc/postgresql-\*/pg_hba.conf      |

Locate: 127.0.0.1/32 and ::1/128 and allow "password" authentication for IPv4 and IPv6 connections.

      # IPv4 local connections:
      host    all             all             127.0.0.1/32            password
      # IPv6 local connections:
      host    all             all             ::1/128                 password

Restart PostgreSQL service for definitions to take effect:

You may consider set the postgresql service to start at boot.

Create database and user, usually using the following commands as root:

      su - postgres -c "psql -d template1 -c "create user engine password 'engine';""
      su - postgres -c "psql -d template1 -c "create database engine owner engine template template0 encoding 'UTF8' lc_collate 'en_US.UTF-8' lc_ctype 'en_US.UTF-8';""

It basically logins into PostgreSQL database using privileged user, creates a user and creates a database owned by the user.

#### Source

Checkout source:

      mkdir -p "$HOME/git"
      cd "$HOME/git"
      $ git clone git://gerrit.ovirt.org/ovirt-engine

### Usage

<font color=red><b>WARNING:</b> DO NOT RUN ENVIRONMENT UNDER ROOT ACCOUNT</font>

Once prerequisites are in place, you are ready to build and use ovirt-engine.

Build product and install at `$HOME/ovirt-engine`, execute the following as unprivileged user while residing within source repository:

      $ make install-dev PREFIX="$HOME/ovirt-engine"

on Debian, include

      PATTERNFLY_HOME="$HOME/patternfly"

Build may be customized, refer to [README.developer](http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=README.developer;hb=HEAD) for further information.

Setup product by executing the following command and replying to questions, if you followed the database creation above then your database user is 'engine', its password is '<PASSWORD>' and the database name is 'engine':

      $ $HOME/ovirt-engine/bin/engine-setup

If jboss is installed at alternate location, add the following while JBOSS_HOME contains the location: `--jboss-home="${JBOSS_HOME}"`

When product is successfully set up, execute the ovirt-engine service:

      $ $HOME/ovirt-engine/share/ovirt-engine/services/ovirt-engine/ovirt-engine.py start

The service will not exit as long as engine is up, to stop press <Ctrl>C.

Access your engine using:

*   <http://localhost:8080>
*   <https://localhost:8443>

Debug port is available via port `8787`, to be used by Eclipse or any other debugger.

When performing code change which do not touch modify database, there is no need to re-execute the setup, just execute:

      $ make install-dev PREFIX="$HOME/ovirt-engine"

And start the engine service.

To rebuild everything use:

      make clean install-dev PREFIX="$HOME/ovirt-engine" 

To rebuild a single artifact, for example utils:

      make clean install-dev PREFIX=$HOME/ovirt-engine \
          EXTRA_BUILD_FLAGS="-pl org.ovirt.engine.core:utils"

Now make a single artifact that resides within the ear (bll,etc):

      make clean install-dev PREFIX=$HOME/ovirt-engine \
          EXTRA_BUILD_FLAGS="-pl org.ovirt.engine.core:bll,org.ovirt.engine:engine-server-ear"

Now your updated artifact is in place.

### Advanced Usage

#### Enable DEBUG log

There is a file share/ovirt-engine/services/ovirt-engine/ovirt-engine.xml.in in the deployed engine environment. Open it and look for <subsystem xmlns="urn:jboss:domain:logging:1.1"> section. This section contains all output handlers (server.log, engine.log and console output) with associated level filters.

<file-handler name="ENGINE" autoflush="true">
` `<level name="DEBUG"/>
` `<formatter>
`  `<pattern-formatter pattern="%d %-5p [%c] (%t) %s%E%n"/>
` `</formatter>
` `<file path="$getstring('ENGINE_LOG')/engine.log"/>
` `<append value="true"/>
</file-handler>

To actually get the DEBUG messages to those handlers add the following to the end of the subsystem section:

<logger category="org.ovirt._package_you_are_interested_in">
`  `<level name="DEBUG"/>
</logger>

To enable full database DEBUG logging to engine.log change the level to DEBUG in the following snippet:

<logger category="org.ovirt.engine.core.dal.dbbroker.PostgresDbEngineDialect$PostgresJdbcTemplate">
`  `<level name="WARN"/>
</logger>

Restart the Jboss instance and you should see the logs.

#### Enable query by query postgresql log

Go to /var/lib/pgsql/data/postgresql.conf and change *log_statement* to 'all'. You can then find the logs in /var/lib/pgsql/data/pg_log/.

#### Enable Unit Tests

      $ make install-dev PREFIX="$HOME/ovirt-engine" BUILD_UT=1

#### Enable DAO Tests

*Optional:* Create database, provided the user is engine, password engine:

      # su - postgres -c "psql -d template1 -c "create database engine_dao_tests owner engine;""
      $ PGPASSWORD=engine ./packaging/dbscripts/schema.sh -d engine_dao_tests -u engine -c apply

Build with tests:

      $ make maven BUILD_GWT=0 BUILD_UT=1 EXTRA_BUILD_FLAGS="-P enable-dao-tests \
          -D engine.db.username=engine \
          -D engine.db.password=<PASSWORD> \
          -D engine.db.url=jdbc:postgresql://localhost/engine_dao_tests"

#### GWT Debug

      $ make install-dev PREFIX="$HOME/ovirt-engine"
`$ make gwt-debug DEBUG_MODULE=`<module>

While <module> is webadmin or userportal-gwtp.

Debug port is 8000, detailed instructions for GWT debugging are [here](http://wiki.ovirt.org/DebugFrontend).

GWT debug URLs, provided components running on same machine:

:{| |- | WebAdmin || <http://127.0.0.1:8080/ovirt-engine/webadmin/WebAdmin.html?gwt.codesvr=127.0.0.1:9997> |- | UserPortal || <http://127.0.0.1:8080/ovirt-engine/userportal/UserPortal.html?gwt.codesvr=127.0.0.1:9997> |}

## Packaging

### RPM packaging

Build system supports standard RPM packaging out of source tarball.

Create source tarball by executing:

      $ make dist

Install build dependencies, replacing `@x@` with file names, this should be executed second time only if build dependencies are changed:

      $ rpmbuild -ts @tarball@
      # yum-builddep @srpm@

Build RPMS:

      $ rpmbuild -tb @tarball@

RPM customization is supported refer to [ovirt-engine.spec.in](http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=ovirt-engine.spec.in;hb=HEAD).

| Variable              | Default | Description                | Usage                                         |
|-----------------------|---------|----------------------------|-----------------------------------------------|
| ovirt_build_quick   | 0       | build as quickly as we can | syntax checks                                 |
| ovirt_build_minimal | 0       | minimal build              | development fully functional for firefox only |
| ovirt_build_gwt     | 1       | gwt enablement             | build or skip                                 |
| ovirt_build_locales | 1       | build extra locales        | production build                              |

Example:

      rpmbuild -D"ovirt_build_minimal 1" -tb @tarball@

## Troubleshooting

### Before you begin

Check if all prerequisites are installed, refer to [prerequisites](#Prerequisites)

### IBM JDK

There is [issues](https://code.google.com/p/google-web-toolkit/issues/detail?id=7530) when building oVirt engine using the IBM JDK.

The workaround to this problem is removing all the .gwtar files that are inside the gwt-user.jar package and building the project using `EXTRA_BUILD_FLAGS="-Dgwt.usearchives=false"`.

Author: --[<NAME>](User:Alonbl) ([talk](User talk:Alonbl)) 02:25, 1 July 2014 (GMT)

<Category:Engine> [Category:How to](Category:How to) [Category:Development environment](Category:Development environment)
<commit_msg>Fedora<commit_after>---
title: OVirt Engine Development Environment
category: engine
authors: alonbl, amureini, arik, didi, dougsland, ecohen, gchaplik, gshereme, mkolesni,
  moolit, mperina, msivak, nsoffer, ofri, roy, smizrahi, tsaban, vered, vitordelima,
  vszocs, yair zaslavsky, ykleinbe
wiki_category: Engine
wiki_title: OVirt Engine Development Environment
wiki_revision_count: 93
wiki_last_updated: 2015-05-26
---

# OVirt Engine Development Environment

## Development Environment

<b>Please notice:</b> Most updated certified documentation is available within source tree at [README.developer](http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=README.developer;hb=HEAD).

This page is mostly to absorb community experience into the certified procedures.

### Prerequisites

#### RPM based

##### Set up snapshot repository

###### Automatically

`# yum install `[`http://resources.ovirt.org/pub/yum-repo/ovirt-releaseXY.rpm`](http://resources.ovirt.org/pub/yum-repo/ovirt-releaseXY.rpm)

This will not work for master, as it is available after release.

###### Manually

Create `/etc/yum.repos.d/ovirt-snapshots.repo`, replace `@distro@` with `fc` for Fedora or `el` for RHEL or equivalent distribution.

      [ovirt-snapshots]
      name=local
      baseurl=http://resources.ovirt.org/pub/ovirt-master-snapshot/rpm/@distro@$releasever
      enabled=1
      gpgcheck=0
      priority=10
      [ovirt-snapshots-static]
      name=local
      baseurl=http://resources.ovirt.org/pub/ovirt-master-snapshot-static/rpm/@distro@$releasever
      enabled=1
      gpgcheck=0
      priority=10

##### Setup PatternFly repository

Create `/etc/yum.repos.d/patternfly.repo` and copy/paste the contents of correct file for your distro from [PatternFly Repos on copr](https://copr.fedoraproject.org/coprs/patternfly/patternfly1).

##### Install 3rd party packages

      # yum install git java-devel maven openssl postgresql-server \
          m2crypto python-psycopg2 python-cheetah python-daemon libxml2-python \
          unzip patternfly1

###### Fedora

      # yum install jboss-as

ovirt-engine doesn't work with jboss-as >= 8.0 (wildfly) on Fedora 20. To work around this issue, when using Fedora 20, do the following instead:

      # wget http://download.jboss.org/jbossas/7.1/jboss-as-7.1.1.Final/jboss-as-7.1.1.Final.zip
      # unzip jboss-as-7.1.1.Final -d /usr/share

###### RHEL

Option 1, setup jboss channel, and install downstream jboss, JBOSS_HOME will be /usr/share/jbossas.

      # yum install jbossas-standalone jbossas-bundles jbossas-modules-eap

Option 2, setup jboss upstream, download jboss-as-7.1.1 from [jboss site](http://www.jboss.org/jbossas/downloads/) and extract to $HOME. JBOSS_HOME will be ${HOME}/jboss-as-<version>...

##### Install ovirt packages

      # yum install ovirt-host-deploy

##### Setup Java

Make sure openjdk is the java preferred:

      # alternatives --config java
      # alternatives --config javac

Note: javassit used in some of the unit tests hits a regression introduced in java-1.7.0-openjdk-1.7.0.65. In order to avoid this issue, you can downgrade to java-1.7.0-openjdk-1.7.0.60.

#### Debian based

Install 3rd party packages:

      # apt-get install git openjdk-7-jdk maven openssl postgresql \
          python-m2crypto python-psycopg2 python-cheetah python-daemon \
          jboss-as unzip

Download PatternFly from [PatternFly releases](https://github.com/patternfly/patternfly/releases/tag/v1.0.5) and extract to $HOME/patternfly

Download jboss-as-7.1.1 from [jboss site](http://www.jboss.org/jbossas/downloads/) and extract to $HOME.

Install ovirt packages:

       TODO

Make sure openjdk is the java preferred:

      # update-alternatives --config java

#### Database

Based on your distribution it may be that you require to initialize the database.

      Fedora: # postgresql-setup initdb
      RHEL:   # /etc/init.d/postgresql initdb
      Gentoo: # emerge --config postgresql-server

Configure PostgreSQL to accept network connection by locating `pg_hba.conf` file, locations includes:

|-------------|--------------------------------------|
| Fedora,RHEL | /var/lib/pgsql/data/pg_hba.conf     |
| Debian      | /etc/postgresql/\*/main/pg_hba.conf |
| Gentoo      | /etc/postgresql-\*/pg_hba.conf      |

Locate: 127.0.0.1/32 and ::1/128 and allow "password" authentication for IPv4 and IPv6 connections.

      # IPv4 local connections:
      host    all             all             127.0.0.1/32            password
      # IPv6 local connections:
      host    all             all             ::1/128                 password

Restart PostgreSQL service for definitions to take effect:

You may consider set the postgresql service to start at boot.

Create database and user, usually using the following commands as root:

      su - postgres -c "psql -d template1 -c "create user engine password '<PASSWORD>';""
      su - postgres -c "psql -d template1 -c "create database engine owner engine template template0 encoding 'UTF8' lc_collate 'en_US.UTF-8' lc_ctype 'en_US.UTF-8';""

It basically logins into PostgreSQL database using privileged user, creates a user and creates a database owned by the user.

#### Source

Checkout source:

      mkdir -p "$HOME/git"
      cd "$HOME/git"
      $ git clone git://gerrit.ovirt.org/ovirt-engine

### Usage

<font color=red><b>WARNING:</b> DO NOT RUN ENVIRONMENT UNDER ROOT ACCOUNT</font>

Once prerequisites are in place, you are ready to build and use ovirt-engine.

Build product and install at `$HOME/ovirt-engine`, execute the following as unprivileged user while residing within source repository:

      $ make install-dev PREFIX="$HOME/ovirt-engine"

on Debian, include

      PATTERNFLY_HOME="$HOME/patternfly"

Build may be customized, refer to [README.developer](http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=README.developer;hb=HEAD) for further information.

Setup product by executing the following command and replying to questions, if you followed the database creation above then your database user is 'engine', its password is '<PASSWORD>' and the database name is 'engine':

      $ $HOME/ovirt-engine/bin/engine-setup

If jboss is installed at alternate location, add the following while JBOSS_HOME contains the location: `--jboss-home="${JBOSS_HOME}"`

When product is successfully set up, execute the ovirt-engine service:

      $ $HOME/ovirt-engine/share/ovirt-engine/services/ovirt-engine/ovirt-engine.py start

The service will not exit as long as engine is up, to stop press <Ctrl>C.

Access your engine using:

*   <http://localhost:8080>
*   <https://localhost:8443>

Debug port is available via port `8787`, to be used by Eclipse or any other debugger.

When performing code change which do not touch modify database, there is no need to re-execute the setup, just execute:

      $ make install-dev PREFIX="$HOME/ovirt-engine"

And start the engine service.

To rebuild everything use:

      make clean install-dev PREFIX="$HOME/ovirt-engine" 

To rebuild a single artifact, for example utils:

      make clean install-dev PREFIX=$HOME/ovirt-engine \
          EXTRA_BUILD_FLAGS="-pl org.ovirt.engine.core:utils"

Now make a single artifact that resides within the ear (bll,etc):

      make clean install-dev PREFIX=$HOME/ovirt-engine \
          EXTRA_BUILD_FLAGS="-pl org.ovirt.engine.core:bll,org.ovirt.engine:engine-server-ear"

Now your updated artifact is in place.

### Advanced Usage

#### Enable DEBUG log

There is a file share/ovirt-engine/services/ovirt-engine/ovirt-engine.xml.in in the deployed engine environment. Open it and look for <subsystem xmlns="urn:jboss:domain:logging:1.1"> section. This section contains all output handlers (server.log, engine.log and console output) with associated level filters.

<file-handler name="ENGINE" autoflush="true">
` `<level name="DEBUG"/>
` `<formatter>
`  `<pattern-formatter pattern="%d %-5p [%c] (%t) %s%E%n"/>
` `</formatter>
` `<file path="$getstring('ENGINE_LOG')/engine.log"/>
` `<append value="true"/>
</file-handler>

To actually get the DEBUG messages to those handlers add the following to the end of the subsystem section:

<logger category="org.ovirt._package_you_are_interested_in">
`  `<level name="DEBUG"/>
</logger>

To enable full database DEBUG logging to engine.log change the level to DEBUG in the following snippet:

<logger category="org.ovirt.engine.core.dal.dbbroker.PostgresDbEngineDialect$PostgresJdbcTemplate">
`  `<level name="WARN"/>
</logger>

Restart the Jboss instance and you should see the logs.

#### Enable query by query postgresql log

Go to /var/lib/pgsql/data/postgresql.conf and change *log_statement* to 'all'. You can then find the logs in /var/lib/pgsql/data/pg_log/.

#### Enable Unit Tests

      $ make install-dev PREFIX="$HOME/ovirt-engine" BUILD_UT=1

#### Enable DAO Tests

*Optional:* Create database, provided the user is engine, password engine:

      # su - postgres -c "psql -d template1 -c "create database engine_dao_tests owner engine;""
      $ PGPASSWORD=engine ./packaging/dbscripts/schema.sh -d engine_dao_tests -u engine -c apply

Build with tests:

      $ make maven BUILD_GWT=0 BUILD_UT=1 EXTRA_BUILD_FLAGS="-P enable-dao-tests \
          -D engine.db.username=engine \
          -D engine.db.password=<PASSWORD> \
          -D engine.db.url=jdbc:postgresql://localhost/engine_dao_tests"

#### GWT Debug

      $ make install-dev PREFIX="$HOME/ovirt-engine"
`$ make gwt-debug DEBUG_MODULE=`<module>

While <module> is webadmin or userportal-gwtp.

Debug port is 8000, detailed instructions for GWT debugging are [here](http://wiki.ovirt.org/DebugFrontend).

GWT debug URLs, provided components running on same machine:

:{| |- | WebAdmin || <http://127.0.0.1:8080/ovirt-engine/webadmin/WebAdmin.html?gwt.codesvr=127.0.0.1:9997> |- | UserPortal || <http://127.0.0.1:8080/ovirt-engine/userportal/UserPortal.html?gwt.codesvr=127.0.0.1:9997> |}

## Packaging

### RPM packaging

Build system supports standard RPM packaging out of source tarball.

Create source tarball by executing:

      $ make dist

Install build dependencies, replacing `@x@` with file names, this should be executed second time only if build dependencies are changed:

      $ rpmbuild -ts @tarball@
      # yum-builddep @srpm@

Build RPMS:

      $ rpmbuild -tb @tarball@

RPM customization is supported refer to [ovirt-engine.spec.in](http://gerrit.ovirt.org/gitweb?p=ovirt-engine.git;a=blob;f=ovirt-engine.spec.in;hb=HEAD).

| Variable              | Default | Description                | Usage                                         |
|-----------------------|---------|----------------------------|-----------------------------------------------|
| ovirt_build_quick   | 0       | build as quickly as we can | syntax checks                                 |
| ovirt_build_minimal | 0       | minimal build              | development fully functional for firefox only |
| ovirt_build_gwt     | 1       | gwt enablement             | build or skip                                 |
| ovirt_build_locales | 1       | build extra locales        | production build                              |

Example:

      rpmbuild -D"ovirt_build_minimal 1" -tb @tarball@

## Troubleshooting

### Before you begin

Check if all prerequisites are installed, refer to [prerequisites](#Prerequisites)

### IBM JDK

There is [issues](https://code.google.com/p/google-web-toolkit/issues/detail?id=7530) when building oVirt engine using the IBM JDK.

The workaround to this problem is removing all the .gwtar files that are inside the gwt-user.jar package and building the project using `EXTRA_BUILD_FLAGS="-Dgwt.usearchives=false"`.

Author: --[Al<NAME>](User:Alonbl) ([talk](User talk:Alonbl)) 02:25, 1 July 2014 (GMT)

<Category:Engine> [Category:How to](Category:How to) [Category:Development environment](Category:Development environment)

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