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Kubernetes v4.13.1 published on Tuesday, Jun 4, 2024 by Pulumi

Stateless Application Using a Deployment

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Kubernetes v4.13.1 published on Tuesday, Jun 4, 2024 by Pulumi

    View Code Deploy this example with Pulumi

    A version of the Kubernetes Stateless Application Deployment example that uses Pulumi. This example deploys a replicated Nginx server to a Kubernetes cluster, using Python and no YAML.

    There is an interactive Tutorial available for this example. If this is your first time using Pulumi for Kubernetes, we recommend starting there.

    Pre-Requisites

    1. Install Pulumi
    2. Configure Kubernetes for Pulumi

    Running the App

    After cloning this repo, cd into this directory and create a new stack, a logical deployment target that we’ll deploy into:

        $ pulumi stack init dev
    

    Now to perform the deployment, simply run pulumi up. It will first show you a preview of what will take place. After confirming, the deployment will take place in approximately 20 seconds:

        $ pulumi up -y
        Previewing update (dev):
            Type                           Name                     Plan
        +   pulumi:pulumi:Stack            kubernetes-py-nginx-dev  create
        +   └─ kubernetes:apps:Deployment  nginx-deployment         create
    
        Resources:
            + 2 to create
    
        Do you want to perform this update? yes
        Updating (dev):
            Type                           Name                     Status
        +   pulumi:pulumi:Stack            kubernetes-py-nginx-dev  created
        +   └─ kubernetes:apps:Deployment  nginx-deployment         created
    
        Outputs:
            nginx: "nginx-deployment-ts0qpwi9"
    
        Resources:
            + 2 created
    
        Duration: 10s
    

    This deployment is now running, and you can run commands like kubectl get pods to see the application’s resources.

    The stack’s replica count is configurable. By default, it will scale up to three instances, but we can easily change that to five, by running the pulumi config command followed by another pulumi up:

        $ pulumi config set replicas 5
        $ pulumi up -y
        Previewing update (dev):
            Type                           Name                     Plan       Info
            pulumi:pulumi:Stack            kubernetes-py-nginx-dev
        ~   └─ kubernetes:apps:Deployment  nginx-deployment         update     [diff: ~spec]
    
        Resources:
            ~ 1 to update
            1 unchanged
    
        Updating (dev):
            Type                           Name                     Status      Info
            pulumi:pulumi:Stack            kubernetes-py-nginx-dev
        ~   └─ kubernetes:apps:Deployment  nginx-deployment         updated     [diff: ~spec]
    
        Outputs:
            nginx: "nginx-deployment-ts0qpwi9"
    
        Resources:
            ~ 1 updated
            1 unchanged
    
        Duration: 15s
    

    After we’re done, we can tear down all resources, including removing our stack, with a couple commands:

        $ pulumi destroy --yes
        $ pulumi stack rm --yes
    
    kubernetes logo
    Kubernetes v4.13.1 published on Tuesday, Jun 4, 2024 by Pulumi