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Add a post about installing feature packs with Prospero
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| --- | ||
| layout: post | ||
| title: "Installing additional feature packs in WildFly" | ||
| date: 2023-11-27 | ||
| tags: prospero galleon wildfly | ||
| author: spyrkob | ||
| description: Using Prospero to install additional feature packs in existing WildFly servers. | ||
| --- | ||
|
|
||
| == Introduction | ||
|
|
||
| In a https://www.wildfly.org/news/2023/04/05/prospero/[previous article], you learnt how to install | ||
| and use https://github.com/wildfly-extras/prospero[Prospero] to provision a WildFly server. In this article, you will learn how to use | ||
| Prospero to modify an existing server and extends its capabilities by adding a MariaDB datasource. | ||
|
|
||
| For the purpose of this article, we assume the existing server has been installed from a downloaded WildFly zip archive. However the process works | ||
| for servers installed using Prospero. In such case, simply skip the <<Registering WildFly server with Prospero>> section and start with | ||
| <<Creating feature pack channel>> section. | ||
|
|
||
| == Additional feature packs for WildFly | ||
|
|
||
| Galleon feature packs provide a mechanism to extend WildFly server capabilities. An example of feature packs contributed by the WildFly community are | ||
| https://github.com/wildfly-extras/wildfly-datasources-galleon-pack[wildfly-datasources-galleon-pack], and | ||
| https://github.com/wildfly-extras/wildfly-myfaces-feature-pack[wildfly-myfaces-galleon-pack]. The first one can be used to add support for a database, | ||
| while the latter can replace default JSF implementation with MyFaces. | ||
|
|
||
| The additional feature packs can be installed in existing servers either using https://docs.wildfly.org/galleon/[Galleon] or | ||
| https://github.com/wildfly-extras/prospero[Prospero] tools. | ||
|
|
||
| == Prerequisites | ||
|
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||
| 1. Download WildFly 30.0.0.Final and unzip it in `/tmp` folder: | ||
| + | ||
| [source] | ||
| ---- | ||
| cd /tmp | ||
| wget https://github.com/wildfly/wildfly/releases/download/30.0.0.Final/wildfly-30.0.0.Final.zip | ||
| unzip -q wildfly-30.0.0.Final.zip | ||
| ---- | ||
| 2. Download and unzip Prospero in `/tmp` folder | ||
| + | ||
| [source] | ||
| ---- | ||
| cd /tmp | ||
| wget https://github.com/wildfly-extras/prospero/releases/download/1.2.0.Final/prospero-1.2.0.Final.zip | ||
| unzip -q prospero-1.2.0.Final.zip | ||
| cd /tmp/prospero-1.2.0.Final | ||
| ---- | ||
|
|
||
| == Registering WildFly server with Prospero | ||
|
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| The first step to install additional feature packs in an existing WildFly server, is to subscribe the server to WildFly channels. | ||
| This allows Prospero to apply updates for WildFly and modify the installation. | ||
|
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||
| [,bash] | ||
| ---- | ||
| ./bin/prospero.sh update subscribe \ | ||
| --dir /tmp/wildfly-30.0.0.Final \ | ||
| --product wildfly \ | ||
| --version 30.0.0.Final | ||
| ---- | ||
|
|
||
| The `update subscribe` command generates a manifest based on selected version of WildFly server and registers the server to a channel using this manifest: | ||
|
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| [,bash] | ||
| ---- | ||
| ./bin/prospero.sh channel list --dir /tmp/wildfly-30.0.0.Final | ||
| ---- | ||
|
|
||
| The command will output the channels that the server is subscribed to: | ||
|
|
||
| [source] | ||
| ---- | ||
| Server /tmp/wildfly-30.0.0.Final is subscribed to following channels: | ||
| ---- | ||
| # wildfly | ||
| manifest: file:/tmp/wildfly-30.0.0.Final/.installation/manifest-wildfly-30.0.0.Final.yaml | ||
| repositories: | ||
| id: central | ||
| url: https://repo1.maven.org/maven2/ | ||
| id: jboss-public | ||
| url: https://repository.jboss.org/nexus/content/groups/public/ | ||
| id: mrrc | ||
| url: https://maven.repository.redhat.com/ga/ | ||
| ---- | ||
|
|
||
| == Creating feature pack channel | ||
|
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| All additional feature packs installed on top of WildFly have to be registered in a channel. We're going to create a new manifest for this. | ||
|
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||
| [,bash] | ||
| ---- | ||
| echo "schemaVersion: 1.0.0 | ||
| streams: | ||
| - groupId: org.wildfly | ||
| artifactId: wildfly-datasources-galleon-pack | ||
| version: 6.0.0.Final | ||
| " > /tmp/datasources-manifest.yaml | ||
| ---- | ||
|
|
||
| Then we can register WildFly to receive updates from a new channel: | ||
|
|
||
| [,bash] | ||
| ---- | ||
| ./bin/prospero.sh channel add \ | ||
| --channel-name datasources \ | ||
| --manifest /tmp/datasources-manifest.yaml \ | ||
| --repositories central::https://repo1.maven.org/maven2 \ | ||
| --dir /tmp/wildfly-30.0.0.Final | ||
| ---- | ||
|
|
||
| == Install wildfly-datasource-galleon-pack | ||
|
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| Finally to install the MariaDB database driver from wildfly-datasource-galleon-pack: | ||
|
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||
| [,bash] | ||
| ---- | ||
| ./bin/prospero.sh feature-pack add \ | ||
| --fpl org.wildfly:wildfly-datasources-galleon-pack \ | ||
| --layers mariadb-datasource \ | ||
| --dir /tmp/wildfly-30.0.0.Final | ||
| ---- | ||
|
|
||
| After running the command, you will be asked to confirm the changes, and the feature pack will be downloaded and installed. | ||
|
|
||
| [source] | ||
| ---- | ||
| Installing feature pack `org.wildfly:wildfly-datasources-galleon-pack` in server `/tmp/wildfly-30.0.0.Final` | ||
| Continue adding the feature pack? [y/N]:y | ||
| Applying changes | ||
| Feature-packs resolved. | ||
| Packages installed. | ||
| Downloaded artifacts. | ||
| JBoss modules installed. | ||
| Configurations generated. | ||
| JBoss examples installed. | ||
| Operation completed in 19.62 seconds. | ||
| ---- | ||
|
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||
| After running this command, a new module `org.mariadb.jdbc:main` will be created in the server modules directory and the `standalone/configuration/standalone.xml` | ||
| will be updated with a new driver and datasource configuration. | ||
|
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| == Updating mariadb driver version | ||
|
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| Steps above installed a default version of MariaDB driver, but using prospero and WildFly channels we are able to update that. | ||
|
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| First, let's add the desired version of the driver to the datasources manifest: | ||
|
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| [,bash] | ||
| ---- | ||
| echo " | ||
| - groupId: org.mariadb.jdbc | ||
| artifactId: mariadb-java-client | ||
| version: 3.3.0 | ||
| " >> /tmp/datasources-manifest.yaml | ||
| ---- | ||
|
|
||
| Next, we just need to let prospero perform an update: | ||
|
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| [,bash] | ||
| ---- | ||
| ./bin/prospero.sh update perform --dir /tmp/wildfly-30.0.0.Final | ||
| ---- | ||
|
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||
| The command will report available updates - in this case showing the changed mariadb driver - and ask you to confirm the changes. | ||
|
|
||
| [source] | ||
| ---- | ||
| Updates found: | ||
| org.mariadb.jdbc:mariadb-java-client 3.2.0 ==> 3.3.0 | ||
| Continue with update [y/N]: y | ||
| Building updates | ||
| Feature-packs resolved. | ||
| Packages installed. | ||
| Downloaded artifacts. | ||
| JBoss modules installed. | ||
| Configurations generated. | ||
| JBoss examples installed. | ||
| Build update complete! | ||
| Applying updates | ||
| Update complete! | ||
| Operation completed in 25.48 seconds. | ||
| ---- | ||
|
|
||
| Now we can check that the `org.mariadb.jdbc:main` module: | ||
|
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||
| [,bash] | ||
| ---- | ||
| ls /tmp/wildfly-30.0.0.Final/modules/org/mariadb/jdbc/main | ||
| ---- | ||
|
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||
| and see the updated driver: | ||
|
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||
| [source] | ||
| ---- | ||
| mariadb-java-client-3.3.0.jar module.xml | ||
| ---- | ||
|
|
||
| == Starting the server | ||
|
|
||
| Before starting the server with the new datasource, we need to provide the MariaDB connection information. Those can either be | ||
| added to the server configuration as WildFly system properties, or as OS environment variables. For the purpose of this article, we will assume that | ||
| the MariaDB database called `testdb` is available on `localhost:3306` and is secured using `test/password` credentials. | ||
|
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| The detailed description of available configuration options can be found in the datasource feature pack documentation, | ||
| eg. https://github.com/wildfly-extras/wildfly-datasources-galleon-pack/blob/main/doc/mariadb/README.md#required-configuration[MariaDB configuration]. | ||
| Managing WildFly system properties is described in the https://docs.wildfly.org/30/Admin_Guide.html#properties[WildFly Admin Guide] | ||
|
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| Let's try to set the required configuration using environment variables and start the server: | ||
|
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||
| [source] | ||
| ---- | ||
| export MARIADB_USER=test | ||
| export MARIADB_PASSWORD=password | ||
| export MARIADB_DATABASE=testdb | ||
| /tmp/wildfly-30.0.0.Final/bin/standalone.sh | ||
| ---- | ||
|
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||
| Note that for this example, we are using a MariaDB database available at the default address `localhost:3306`. If your environment is different, | ||
| you can change those values using `MARIADB_HOST` and `MARIADB_PORT` environment variables. | ||
|
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| Looking at the startup logs, we can see that `mariadb` driver and a new data source `java:jboss/datasources/MariaDBDS` are made available. | ||
|
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||
| [source] | ||
| ---- | ||
| ========================================================================= | ||
| JBoss Bootstrap Environment | ||
| JBOSS_HOME: /tmp/wildfly-30.0.0.Final | ||
| JAVA: /opt/java/jdk-11.0.20.jdk/Contents/Home/bin/java | ||
| JAVA_OPTS: -Xms64m -Xmx512m -XX:MetaspaceSize=96M -XX:MaxMetaspaceSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true --add-exports=java.desktop/sun.awt=ALL-UNNAMED --add-exports=java.naming/com.sun.jndi.ldap=ALL-UNNAMED --add-exports=java.naming/com.sun.jndi.url.ldap=ALL-UNNAMED --add-exports=java.naming/com.sun.jndi.url.ldaps=ALL-UNNAMED --add-exports=jdk.naming.dns/com.sun.jndi.dns=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.invoke=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.base/java.net=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.management/javax.management=ALL-UNNAMED --add-opens=java.naming/javax.naming=ALL-UNNAMED | ||
| ========================================================================= | ||
| 12:24:22,095 INFO [org.jboss.modules] (main) JBoss Modules version 2.1.2.Final | ||
| 12:24:22,300 INFO [org.jboss.msc] (main) JBoss MSC version 1.5.2.Final | ||
| 12:24:22,303 INFO [org.jboss.threads] (main) JBoss Threads version 2.4.0.Final | ||
| 12:24:22,348 INFO [org.jboss.as] (MSC service thread 1-1) WFLYSRV0049: WildFly Full 30.0.0.Final (WildFly Core 22.0.1.Final) starting | ||
| [...] | ||
| 12:24:22,909 INFO [org.jboss.as.connector.subsystems.datasources] (ServerService Thread Pool -- 44) WFLYJCA0004: Deploying JDBC-compliant driver class org.mariadb.jdbc.Driver (version 3.3) | ||
| 12:24:22,915 INFO [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-6) WFLYJCA0018: Started Driver service with driver-name = mariadb | ||
| [...] | ||
| 12:24:23,067 INFO [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-7) WFLYJCA0001: Bound data source [java:jboss/datasources/MariaDBDS] | ||
| [...] | ||
| 12:24:23,161 INFO [org.jboss.as] (Controller Boot Thread) WFLYSRV0025: WildFly Full 30.0.0.Final (WildFly Core 22.0.1.Final) started in 1201ms - Started 288 of 530 services (318 services are lazy, passive or on-demand) - Server configuration file in use: standalone.xml | ||
| ---- | ||
|
|
||
| == Conclusion | ||
|
|
||
| In this article, we learned how to use Prospero to extend WildFly server with additional capabilities using feature packs. | ||
|
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| In particular we used https://github.com/wildfly-extras/wildfly-datasources-galleon-pack[wildfly-datasources-galleon-pack] to install | ||
| and update a MariaDB datasource, but the same technique can be used to install other feature packs contributed by the community. | ||
|
|
||
| If you want to learn more about Prospero or available feature packs, please take a look at the GitHub projects below: | ||
|
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||
| * https://github.com/wildfly-extras/prospero | ||
| * https://github.com/wildfly-extras/wildfly-datasources-galleon-pack | ||
| * https://github.com/wildfly-extras/wildfly-myfaces-feature-pack | ||
|
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| If you would like to learn more about extending WildFly using feature packs, please take a looke at: | ||
|
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| * https://docs.wildfly.org/galleon-plugins/#_building_a_custom_feature_pack_example | ||
| * https://docs.wildfly.org/galleon/ |