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Add C# Kubernetes Guestbook example (pulumi#477)
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Luke Hoban
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Nov 27, 2019
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| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>netcoreapp3.0</TargetFramework> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <PackageReference Include="Pulumi.Kubernetes" Version="1.3.2-preview" /> | ||
| </ItemGroup> | ||
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| </Project> |
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| // Copyright 2016-2019, Pulumi Corporation. All rights reserved. | ||
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| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Threading.Tasks; | ||
| using Pulumi; | ||
| using Pulumi.Kubernetes.Core.V1; | ||
| using Pulumi.Kubernetes.Types.Inputs.Core.V1; | ||
| using Pulumi.Kubernetes.Types.Inputs.Apps.V1; | ||
| using Pulumi.Kubernetes.Types.Inputs.Meta.V1; | ||
| using Pulumi.Kubernetes.Types.Inputs.ApiExtensions.V1Beta1; | ||
|
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| class Program | ||
| { | ||
| static Task<int> Main(string[] args) | ||
| { | ||
| return Deployment.RunAsync(() => | ||
| { | ||
| // Minikube does not implement services of type `LoadBalancer`; require the user to | ||
| // specify if we're running on minikube, and if so, create only services of type | ||
| // ClusterIP. | ||
| var config = new Config(); | ||
| var isMiniKube = config.GetBoolean("isMiniKube") ?? false; | ||
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| // | ||
| // REDIS MASTER. | ||
| // | ||
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| var redisMasterLabels = new InputMap<string>{ | ||
| { "app", "redis-master" }, | ||
| }; | ||
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| var redisMasterDeployment = new Pulumi.Kubernetes.Apps.V1.Deployment("redis-master", new DeploymentArgs | ||
| { | ||
| Spec = new DeploymentSpecArgs | ||
| { | ||
| Selector = new LabelSelectorArgs | ||
| { | ||
| MatchLabels = redisMasterLabels, | ||
| }, | ||
| Template = new PodTemplateSpecArgs | ||
| { | ||
| Metadata = new ObjectMetaArgs | ||
| { | ||
| Labels = redisMasterLabels, | ||
| }, | ||
| Spec = new PodSpecArgs | ||
| { | ||
| Containers = | ||
| { | ||
| new ContainerArgs | ||
| { | ||
| Name = "master", | ||
| Image = "k8s.gcr.io/redis:e2e", | ||
| Resources = new ResourceRequirementsArgs | ||
| { | ||
| Requests = | ||
| { | ||
| { "cpu", "100m" }, | ||
| { "memory", "100Mi" }, | ||
| }, | ||
| }, | ||
| Ports = | ||
| { | ||
| new ContainerPortArgs { ContainerPortValue = 6379 } | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }); | ||
|
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| var redisMasterService = new Pulumi.Kubernetes.Core.V1.Service("redis-master", new ServiceArgs | ||
| { | ||
| Metadata = new ObjectMetaArgs | ||
| { | ||
| Labels = redisMasterDeployment.Metadata.Apply(metadata => metadata.Labels), | ||
| }, | ||
| Spec = new ServiceSpecArgs | ||
| { | ||
| Ports = | ||
| { | ||
| new ServicePortArgs | ||
| { | ||
| Port = 6379, | ||
| TargetPort = 6379, | ||
| }, | ||
| }, | ||
| Selector = redisMasterDeployment.Spec.Apply(spec => spec.Template.Metadata.Labels), | ||
| } | ||
| }); | ||
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| // | ||
| // REDIS REPLICA. | ||
| // | ||
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| var redisReplicaLabels = new InputMap<string>{ | ||
| { "app", "redis-replica" }, | ||
| }; | ||
|
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| var redisReplicaDeployment = new Pulumi.Kubernetes.Apps.V1.Deployment("redis-replica", new DeploymentArgs | ||
| { | ||
| Spec = new DeploymentSpecArgs | ||
| { | ||
| Selector = new LabelSelectorArgs | ||
| { | ||
| MatchLabels = redisReplicaLabels, | ||
| }, | ||
| Template = new PodTemplateSpecArgs | ||
| { | ||
| Metadata = new ObjectMetaArgs | ||
| { | ||
| Labels = redisReplicaLabels, | ||
| }, | ||
| Spec = new PodSpecArgs | ||
| { | ||
| Containers = | ||
| { | ||
| new ContainerArgs | ||
| { | ||
| Name = "replica", | ||
| Image = "gcr.io/google_samples/gb-redisslave:v1", | ||
| Resources = new ResourceRequirementsArgs | ||
| { | ||
| Requests = | ||
| { | ||
| { "cpu", "100m" }, | ||
| { "memory", "100Mi" }, | ||
| }, | ||
| }, | ||
| // If your cluster config does not include a dns service, then to instead access an environment | ||
| // variable to find the master service's host, change `value: "dns"` to read `value: "env"`. | ||
| Env = | ||
| { | ||
| new EnvVarArgs | ||
| { | ||
| Name = "GET_HOSTS_FROM", | ||
| Value = "dns" | ||
| }, | ||
| }, | ||
| Ports = | ||
| { | ||
| new ContainerPortArgs { ContainerPortValue = 6379 } | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }); | ||
|
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| var redisReplicaService = new Pulumi.Kubernetes.Core.V1.Service("redis-replica", new ServiceArgs | ||
| { | ||
| Metadata = new ObjectMetaArgs | ||
| { | ||
| Labels = redisReplicaDeployment.Metadata.Apply(metadata => metadata.Labels), | ||
| }, | ||
| Spec = new ServiceSpecArgs | ||
| { | ||
| Ports = | ||
| { | ||
| new ServicePortArgs | ||
| { | ||
| Port = 6379, | ||
| TargetPort = 6379, | ||
| }, | ||
| }, | ||
| Selector = redisReplicaDeployment.Spec.Apply(spec => spec.Template.Metadata.Labels), | ||
| } | ||
| }); | ||
|
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| // | ||
| // FRONTEND | ||
| // | ||
|
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| var frontendLabels = new InputMap<string>{ | ||
| { "app", "frontend" }, | ||
| }; | ||
|
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| var frontendDeployment = new Pulumi.Kubernetes.Apps.V1.Deployment("frontend", new DeploymentArgs | ||
| { | ||
| Spec = new DeploymentSpecArgs | ||
| { | ||
| Selector = new LabelSelectorArgs | ||
| { | ||
| MatchLabels = frontendLabels, | ||
| }, | ||
| Replicas = 3, | ||
| Template = new PodTemplateSpecArgs | ||
| { | ||
| Metadata = new ObjectMetaArgs | ||
| { | ||
| Labels = frontendLabels, | ||
| }, | ||
| Spec = new PodSpecArgs | ||
| { | ||
| Containers = | ||
| { | ||
| new ContainerArgs | ||
| { | ||
| Name = "php-redis", | ||
| Image = "gcr.io/google-samples/gb-frontend:v4", | ||
| Resources = new ResourceRequirementsArgs | ||
| { | ||
| Requests = { | ||
| { "cpu", "100m" }, | ||
| { "memory", "100Mi" }, | ||
| }, | ||
| }, | ||
| // If your cluster config does not include a dns service, then to instead access an environment | ||
| // variable to find the master service's host, change `value: "dns"` to read `value: "env"`. | ||
| Env = | ||
| { | ||
| new EnvVarArgs | ||
| { | ||
| Name = "GET_HOSTS_FROM", | ||
| Value = "dns", /* Value = "env"*/ | ||
| }, | ||
| }, | ||
| Ports = | ||
| { | ||
| new ContainerPortArgs { ContainerPortValue = 80 } | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }, | ||
| }); | ||
|
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| var frontendService = new Pulumi.Kubernetes.Core.V1.Service("frontend", new ServiceArgs | ||
| { | ||
| Metadata = new ObjectMetaArgs | ||
| { | ||
| Labels = frontendDeployment.Metadata.Apply(metadata => metadata.Labels), | ||
| }, | ||
| Spec = new ServiceSpecArgs | ||
| { | ||
| Type = isMiniKube ? "ClusterIP" : "LoadBalancer", | ||
| Ports = | ||
| { | ||
| new ServicePortArgs | ||
| { | ||
| Port = 80, | ||
| TargetPort = 80, | ||
| }, | ||
| }, | ||
| Selector = frontendDeployment.Spec.Apply(spec => spec.Template.Metadata.Labels), | ||
| } | ||
| }); | ||
|
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| Output<string> frontendIP; | ||
| if (isMiniKube) | ||
| { | ||
| frontendIP = frontendService.Spec.Apply(spec => spec.ClusterIP); | ||
| } | ||
| else | ||
| { | ||
| frontendIP = frontendService.Status.Apply(status => status.LoadBalancer.Ingress[0].Hostname); | ||
| } | ||
|
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| return new Dictionary<string, object>{ | ||
| { "frontendIp", frontendIP }, | ||
| }; | ||
|
|
||
| }); | ||
| } | ||
| } |
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| name: guestbook-csharp | ||
| runtime: dotnet | ||
| description: Kubernetes Guestbook example based on https://kubernetes.io/docs/tutorials/stateless-application/guestbook/ | ||
| template: | ||
| config: | ||
| isMinikube: | ||
| description: Whether you are deploying to minikube | ||
| default: true |
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| [](https://app.pulumi.com/new) | ||
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| # Kubernetes Guestbook (Simple Variant) | ||
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| A version of the [Kubernetes Guestbook](https://kubernetes.io/docs/tutorials/stateless-application/guestbook/) | ||
| application using Pulumi. | ||
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| ## Running the App | ||
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| Follow the steps in [Pulumi Installation](https://www.pulumi.com/docs/get-started/install/) and [Kubernetes Setup](https://www.pulumi.com/docs/intro/cloud-providers/kubernetes/setup/) to get Pulumi working with Kubernetes. | ||
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| Create a new stack: | ||
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| ```sh | ||
| $ pulumi stack init | ||
| Enter a stack name: testbook | ||
| ``` | ||
|
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| This example will attempt to expose the Guestbook application to the Internet with a `Service` of | ||
| type `LoadBalancer`. Since minikube does not support `LoadBalancer`, the Guestbook application | ||
| already knows to use type `ClusterIP` instead; all you need to do is to tell it whether you're | ||
| deploying to minikube: | ||
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| ```sh | ||
| pulumi config set isMinikube <value> | ||
| ``` | ||
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| Perform the deployment: | ||
|
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| ```sh | ||
| $ pulumi up | ||
| Updating stack 'testbook' | ||
| Performing changes: | ||
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| Type Name Status | ||
| + pulumi:pulumi:Stack guestbook-csharp-testbook created | ||
| + ├─ kubernetes:apps:Deployment redis-replica created | ||
| + ├─ kubernetes:apps:Deployment frontend created | ||
| + ├─ kubernetes:apps:Deployment redis-master created | ||
| + ├─ kubernetes:core:Service redis-master created | ||
| + ├─ kubernetes:core:Service redis-replica created | ||
| + └─ kubernetes:core:Service frontend created | ||
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| Outputs: | ||
| + frontendIp: "35.232.147.18" | ||
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| Resources: | ||
| + 7 created | ||
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| Duration: 17s | ||
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| Permalink: https://app.pulumi.com/lukehoban/guestbook-csharp/testbook/updates/1 | ||
| ``` | ||
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| And finally - open the application in your browser to see the running application. If you're running | ||
| macOS you can simply run: | ||
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| ```sh | ||
| open $(pulumi stack output frontendIp) | ||
| ``` | ||
|
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| > _Note_: minikube does not support type `LoadBalancer`; if you are deploying to minikube, make sure | ||
| > to run `kubectl port-forward svc/frontend 8080:80` to forward the cluster port to the local | ||
| > machine and access the service via `localhost:8080`. | ||
|  |
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