TL;DR Code
Here you go:
Introduction
This is a very short introduction to the new Pulumi Java language support. Pulumi supports writing your infrastructure as code using the Java language. Java 11 or later is required.
We are going to create an AKS cluster and deploy a Minecraft server via the use of a Helm chart. All in Pulumi and all in Java.
Create your Pulumi program
We use the new java template to create the scaffolding for our application.
pulumi new java --force
pulumi plugin install language java
Add the java dependency for Azure and Kubernetes to your projects pom.xml file:
...
<dependencies>
<dependency>
<groupId>com.pulumi</groupId>
<artifactId>pulumi</artifactId>
<version>0.1.0</version>
</dependency>
<dependency>
<groupId>com.pulumi</groupId>
<artifactId>azure-native</artifactId>
<version>1.63.0</version>
</dependency>
<dependency>
<groupId>com.pulumi</groupId>
<artifactId>azuread</artifactId>
<version>5.21.0</version>
</dependency>
<dependency>
<groupId>com.pulumi</groupId>
<artifactId>kubernetes</artifactId>
<version>3.18.3</version>
</dependency>
</dependencies>
...
You can find the details about the providers in the registry documentation:
Here are some snippets of the code, you can find the full code in the repo link on the top of this article:
package minecraft;
import com.pulumi.Pulumi;
import com.pulumi.azuread.*;
import com.pulumi.azurenative.containerservice.ContainerserviceFunctions;
import com.pulumi.azurenative.containerservice.ManagedCluster;
....
public static void main(String[] args) {
Pulumi.run(ctx -> {
ResourceGroup minecraftGroup = new ResourceGroup("minecraft-java-resource-group",
ResourceGroupArgs.builder()
.resourceGroupName("minecraft-java-rg")
.location("westeurope")
.build());
Application application = new Application("minecraft-app",
ApplicationArgs.builder()
.displayName("minecraft").build());
ServicePrincipal servicePrincipal = new ServicePrincipal("minecraft-java-sp",
ServicePrincipalArgs.builder()
.applicationId(application.applicationId()).build());
ServicePrincipalPassword ServicePrincipalPassword = new ServicePrincipalPassword("minecraft-java-sp-pw",
ServicePrincipalPasswordArgs.builder()
.servicePrincipalId(servicePrincipal.getId())
.endDate("2099-01-01T00:00:00Z").build());
ManagedCluster mc = new ManagedCluster("minecraft-aks",
ManagedClusterArgs.builder()
.kubernetesVersion("1.23.5")
.location(minecraftGroup.location())
.resourceGroupName(minecraftGroup.name())
.resourceName("minecraft-aks")
.nodeResourceGroup("minecraft-aks-nodes")
.dnsPrefix(minecraftGroup.name())
.enableRBAC(true)
.servicePrincipalProfile(ManagedClusterServicePrincipalProfileArgs.builder()
.clientId(application.applicationId())
.secret(ServicePrincipalPassword.value()).build())
.agentPoolProfiles(new ManagedClusterAgentPoolProfileArgs[]
{ManagedClusterAgentPoolProfileArgs.builder()
.count(3)
.vmSize("Standard_B2ms")
.osType("Linux")
.osDiskSizeGB(30)
.mode("System")
.name("agentpool").build()}).build());
...
ctx.export("kubeconfig", ctx.output(kubeconfig).asSecret());
Provider provider = new Provider("minecraft-k8s-provider",
ProviderArgs.builder()
.kubeconfig(kubeconfig).build(),
CustomResourceOptions.builder()
.parent(mc).build());
new Release("minecraft",
ReleaseArgs.builder()
.chart("minecraft")
.namespace("minecraft")
.createNamespace(true)
.version("3.10.0")
.valueYamlFiles(new com.pulumi.asset.FileAsset("./values.yaml"))
.repositoryOpts(RepositoryOptsArgs.builder()
.repo("https://itzg.github.io/minecraft-server-charts").build()).build(),
CustomResourceOptions.builder()
.provider(provider)
.parent(provider).build());
});
}
}
Deploy your application
Now you can run our program via the call:
pulumi up
...
Previewing update (dev)
View Live: https://app.pulumi.com/dirien/pulumi-java-azure-kubernetes/dev/previews/0b6ffbd0-9311-482b-9834-5039bab277df
Type Name Plan
+ pulumi:pulumi:Stack pulumi-java-azure-kubernetes-dev create
+ ├─ azuread:index:Application minecraft-app create
+ ├─ azure-native:resources:ResourceGroup minecraft-java-resource-group create
+ ├─ azuread:index:ServicePrincipal minecraft-java-sp create
+ ├─ azuread:index:ServicePrincipalPassword minecraft-java-sp-pw create
+ └─ azure-native:containerservice:ManagedCluster minecraft-aks create
+ └─ pulumi:providers:kubernetes minecraft-k8s-provider create
+ └─ kubernetes:helm.sh/v3:Release minecraft create
Resources:
+ 8 to create
The kubeconfig you can export via the commmand:
pulumi stack output kubeconfig --show-secrets > kubeconfig.yaml
Play the game
Check for the external ip and use this to enter in your Minecraft client:
Have fun!
Destroy your application
Of course we going to destroy our application, with the following command:
pulumi destroy
