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Add MongoDB example that works with prestarted MongoDB
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@scottmarlow
scottmarlow committed Nov 30, 2018
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81 changes: 81 additions & 0 deletions microprofile-nosql/README.md
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# MicroProfile plus MongoDB in a .war Example

This example takes a normal [MicroProfile](http://microprofile.io) WAR, and wraps it into
a `-thorntail` runnable jar, with a little added MongoDB access for more fun!

> Please raise any issues found with this example in our JIRA:
> https://issues.jboss.org/browse/THORN
## Project `pom.xml`

This project is a traditional WAR project, with maven packaging
of `war` in the `pom.xml`

<packaging>war</packaging>

The project adds a `<plugin>` to configure `thorntail-maven-plugin` to
create the runnable `.jar`.

<plugin>
<groupid>io.thorntail</groupId>
<artifactId>thorntail-maven-plugin</artifactId>
<version>${version.thorntail}</version>
<executions>
<execution>
<goals>
<goal>package</goal>
</goals>
</execution>
</executions>
</plugin>

To define the needed parts of Thorntail, a dependency is added

<dependency>
<groupid>io.thorntail</groupId>
<artifactId>microprofile</artifactId>
<version>${version.thorntail}</version>
</dependency>

This dependency provides the APIs that are part of the MicroProfile
to your application, so the project does *not* need to specify those.

Additional application dependencies (in this case `joda-time`) can be
specified and will be included in the normal `.war` construction and available
within the Thorntail application `.jar`.

## Start MongoDB

First start the MondoDB server, which may take some time to launch in the background (which is why we hacked a sleep of 5 seconds below).
Then, create 'devuser' account and set the password to 'tTeX%4#MpN0~sQl':

* docker run -d --name some-mongo -p 27017:27017 -e MONGO_INITDB_DATABASE=mongotestdb mongo
* sleep 5
* docker exec some-mongo /bin/sh -c "mongo mongotestdb --eval \"db.createUser({ user: 'devuser', pwd: 'tTeX%4#MpN0~sQl', roles: ['dbAdmin'] }); db.auth('devuser', 'tTeX%4#MpN0~sQl'); \" "

## Stop MongoDB

After you done playing with this example, you can stop the MongoDB database via:
* docker stop some-mongo
* docker rm some-mongo

## Run

* mvn thorntail:run

For build and deployment to OpenShift, will deploy to active OpenShift project.
* oc project
* mvn clean package fabric8:build fabric8:deploy

Read about the maven fabric8 plugin at https://maven.fabric8.io/

## Use

Since Thorntail apps tend to support one deployment per executable, it
automatically adds a `jboss-web.xml` to the deployment if it doesn't already
exist. This is used to bind the deployment to the root of the web-server,
instead of using the `.war`'s own name as the application context.

http://localhost:8080/Hello to show that the application prints a 'Howdy' message, then
http://localhost:8080/Hello/createDiaryEntry to show that the application can write and read the MongoDB database.

172 changes: 172 additions & 0 deletions microprofile-nosql/pom.xml
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<?xml version="1.0" encoding="UTF-8"?>
<!--
~ Copyright 2018 Red Hat, Inc. and/or its affiliates.
~
~ Licensed under the Apache License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0
-->
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<parent>
<groupId>io.thorntail.examples</groupId>
<artifactId>examples-parent</artifactId>
<version>2.2.0.Final-SNAPSHOT</version>
<relativePath>../</relativePath>
</parent>

<artifactId>example-microprofile-nosql</artifactId>

<name>Thorntail Examples: Microprofile NoSQL</name>
<description>Thorntail Examples: Microprofile NoSQL</description>

<packaging>war</packaging>

<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>io.thorntail</groupId>
<artifactId>thorntail-maven-plugin</artifactId>
<executions>
<execution>
<id>package</id>
</execution>
<execution>
<id>start</id>
</execution>
<execution>
<id>stop</id>
</execution>
</executions>
</plugin>
<plugin>
<groupId>io.fabric8</groupId>
<artifactId>fabric8-maven-plugin</artifactId>
<version>3.5.41</version>
<executions>
<execution>
<goals>
<goal>resource</goal>
</goals>
</execution>
<execution>
<id>execution1</id>
<configuration>
<!-- Standard d-m-p configuration which defines how images are build, i.e. how the docker.tar is created -->
<images>
<image>
<name>mongo</name>
<!-- "alias" is used to correlate to the containers in the pod spec -->
<alias>mymongo</alias>
<!--
<build>
<from>fabric8/java</from>
<assembly>
<basedir>/deployments</basedir>
<descriptorRef>artifact-with-dependencies</descriptorRef>
</assembly>
<env>
<JAVA_LIB_DIR>/deployments</JAVA_LIB_DIR>
<JAVA_MAIN_CLASS>org.apache.camel.cdi.Main</JAVA_MAIN_CLASS>
</env>
</build>
-->
</image>
</images>
<!-- resources to be created -->
<resources>
<!-- Labels that are applied to all created objects -->
<labels>
<group>quickstarts</group>
</labels>
<!-- Definition of the ReplicationController / ReplicaSet. Any better name than "containers" ? -->
<deployment>
<!-- Name of the replication controller, which will have a sane default (container alisa, mvn coords, ..) -->
<name>${project.artifactId}</name>
<!-- Replica count-->
<replicas>1</replicas>
<!-- Container to include in the POD template. By default all with a "build" section in the
"images" configuration will be add to the POD. However, they can be configured separately, too.
-->
<containers>
<container>
<!-- Alias name correlating with the same named "image" configuration above. Can be ommitted
if there is only a single image added -->
<alias>camel-service</alias>
<ports>
<!-- Ports to expose in the pod specs -->
<port>8778</port>
</ports>
<mounts>
<scratch>/var/scratch</scratch>
</mounts>
</container>
</containers>
<!-- Volumes used in the replicaSet -->
<volumes>
<volume>
<name>scratch</name>
<type>emptyDir</type>
</volume>
</volumes>
</deployment>
<!-- Dedicated section for (multiple) services to define -->
<services>
<service>
<name>${project.artifactId}</name>
<headless>true</headless>
</service>
</services>
</resources>
</configuration>
</execution>
</executions>
<configuration>
<generator>
<includes>
<include>thorntail-v2</include>
</includes>
<config>
<thorntail>
<from>registry.access.redhat.com/redhat-openjdk-18/openjdk18-openshift</from>
</thorntail>
</config>
</generator>
</configuration>
</plugin>
</plugins>
</build>

<dependencies>
<dependency>
<groupId>io.thorntail.examples</groupId>
<artifactId>examples-base</artifactId>
</dependency>
<dependency>
<groupId>io.thorntail</groupId>
<artifactId>microprofile</artifactId>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.7</version>
</dependency>
<dependency>
<groupId>io.thorntail</groupId>
<artifactId>mongodb</artifactId>
</dependency>
<dependency>
<groupId>org.mongodb</groupId>
<artifactId>mongo-java-driver</artifactId>
<version>3.2.2</version>
</dependency>
</dependencies>

</project>
39 changes: 39 additions & 0 deletions microprofile-nosql/src/it/java/org/wildfly/swarm/it/jaxrs/JAXRSApplicationIT.java
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package org.wildfly.swarm.it.jaxrs;

import org.jboss.arquillian.drone.api.annotation.Drone;
import org.jboss.arquillian.junit.Arquillian;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.openqa.selenium.WebDriver;
import org.wildfly.swarm.it.AbstractIntegrationTest;

import static org.fest.assertions.Assertions.assertThat;

/**
* @author Bob McWhirter
* @author Ken Finnigan
*/
@RunWith(Arquillian.class)
public class JAXRSApplicationIT extends AbstractIntegrationTest {

@Drone
WebDriver browser;

@Test
public void testIt() {
browser.navigate().to("http://localhost:8080/");
assertThat(browser.getPageSource()).contains("Howdy at ");
}

@Test
public void testExceptionMapping() {
browser.navigate().to("http://localhost:8080/bad");
assertThat(browser.getPageSource()).contains("This is our exception page!");
}

@Test
public void testCreateMongoDBDocument() {
browser.navigate().to("http://localhost:8080/createDiaryEntry");
assertThat(browser.getPageSource()).contains("MongoDB example");
}
}
45 changes: 45 additions & 0 deletions microprofile-nosql/src/main/fabric8/example-microprofile-deployment.yml
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apiVersion: v1
kind: DeploymentConfig
metadata:
name: example-microprofile
spec:
replicas: 1
strategy:
rollingParams:
timeoutSeconds: 10800
type: Rolling
template:
metadata:
labels:
app: example-microprofile
deploymentconfig: example-microprofile
spec:
containers:
- env:
- name: KUBERNETES_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: JAVA_APP_DIR
value: /deployments
- name: JAVA_OPTIONS
value: -Dswarm.project.stage=production -Djava.net.preferIPv4Stack=true
name: example-microprofile
image: example-microprofile:latest
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8080
name: http
protocol: TCP
securityContext:
privileged: false
triggers:
- type: ConfigChange
- imageChangeParams:
automatic: true
containerNames:
- example-microprofile
from:
kind: ImageStreamTag
name: example-microprofile:latest
type: ImageChange
10 changes: 10 additions & 0 deletions microprofile-nosql/src/main/fabric8/example-microprofile-route.yml
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apiVersion: v1
kind: Route
metadata:
name: example-microprofile
spec:
port:
targetPort: 8080
to:
kind: Service
name: example-microprofile
14 changes: 14 additions & 0 deletions microprofile-nosql/src/main/fabric8/example-microprofile-svc.yml
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apiVersion: v1
kind: Service
metadata:
name: example-microprofile
annotations:
description: Inventory Service based on WF Swarm
spec:
ports:
- protocol: TCP
port: 8080
targetPort: 8080
selector:
deploymentconfig: example-microprofile
type: LoadBalancer
14 changes: 14 additions & 0 deletions microprofile-nosql/src/main/java/org/wildfly/examples/swarm/jaxrs/MyApplication.java
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package org.wildfly.examples.swarm.jaxrs;

import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;

/**
* @author Bob McWhirter
*/
@ApplicationPath("/")
public class MyApplication extends Application {

public MyApplication() {
}
}
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