1. Deploy the trilium helm chart on Linode Kubernetes Engine


    To deploy the Trilium Helm chart on Linode Kubernetes Engine (LKE), we will write a Pulumi program using TypeScript. This program will perform the following steps:

    1. Set up a new Kubernetes cluster in Linode using the Linode Kubernetes Engine (LKE).
    2. Install and configure the Helm chart for the Trilium application on the newly created Kubernetes cluster.

    First, we need to have Pulumi installed and setup to communicate with Linode. Make sure you have the necessary Linode API token and Pulumi is configured to use it.

    We will use the linode and kubernetes packages from Pulumi. The linode provider will allow us to provision an LKE cluster, and the kubernetes package lets us apply Helm charts to our Kubernetes cluster.

    Here's a step-by-step TypeScript program that accomplishes the deployment:

    import * as linode from "@pulumi/linode"; import * as k8s from "@pulumi/kubernetes"; // Step 1: Create a new LKE cluster const cluster = new linode.LkeCluster("my-cluster", { label: "my-cluster", region: "us-central", // specify the region you prefer k8sVersion: "1.20", // specify the Kubernetes version tags: ["my-linode-cluster"], nodePools: [{ type: "g6-standard-2", // specify the type of node count: 3, // specify the number of nodes }], }); // Step 2: Create a Kubernetes Provider pointing to the LKE cluster const kubeconfig = cluster.kubeconfig.apply(JSON.stringify); const provider = new k8s.Provider("my-k8s-provider", { kubeconfig: kubeconfig, }); // Step 3: Install the Trilium Helm chart using the Helm provider const triliumChart = new k8s.helm.v3.Chart("trilium", { chart: "trilium", // The name of the chart version: "0.1.0", // Specify the chart version, if necessary namespace: "default", // Target namespace for the deployment fetchOpts: { repo: "https://your-helm-chart-repository", // The Helm chart repository URL }, // Values for the Helm chart can be set here if necessary, // e.g., values: { "service": { "type": "LoadBalancer" } }, }, { provider: provider }); // Step 4: Export the cluster details and application endpoint if needed export const clusterName = cluster.label; export const kubeconfigOutput = cluster.kubeconfig; export const triliumEndpoint = triliumChart.getResourceProperty("v1/Service", "trilium", "status");

    Let's break down what each step in this program is doing:

    • Create a new LKE cluster: This block sets up a new Kubernetes cluster on Linode's infrastructure. Here, you can further customize the region, Kubernetes version, and the node type needed for your use case.

    • Create a Kubernetes Provider: This provider instance is configured to interact with our LKE based on the generated kubeconfig.

    • Install the Trilium Helm chart: In this step, we are deploying the Trilium application using its Helm chart. If the Trilium chart requires specific values to be set, you can specify them in the values property of the helm.v3.Chart resource.

    • Export cluster details: These exported variables can be used to retrieve important information about the cluster and application, such as the cluster name and the Trilium service endpoint, after the Pulumi program runs.

    Additionally, you will need to replace some placeholder values:

    • The Kubernetes version (k8sVersion) may need to be set to the version supported by LKE you wish to use.
    • The node pool type and count (type and count, respectively) can be modified based on the compute requirements for your Trilium instance.
    • The repo inside fetchOpts needs to be replaced with the actual Helm chart repository URL containing the Trilium chart.
    • The version inside the Chart resource must match the version of Trilium Helm chart that you wish to deploy.

    Make sure you have the correct repository and chart name for Trilium, and update the repo URL accordingly (as Trilium may not have an official Helm chart or is not hosted in Helm's common repository).

    To run this, you would typically perform the following commands:

    1. Save the code to a file named index.ts.
    2. Initialize a new Pulumi project with pulumi new.
    3. Install dependencies with npm install.
    4. Run pulumi up to create and deploy the resources.

    Please note that actual Helm chart versions or available types of node pools can vary, so you should adjust these values based on the current offerings by your cloud provider and the Helm chart repository.