Using azure dockercontainer with mariadb

Question

Pulumi · Accepted Answer

To run a Docker container with MariaDB on Azure, you would typically use an Azure Container Instance (ACI). ACI allows you to run containers in Azure without managing servers. However, the Pulumi Registry Results provided do not directly relate to Azure Container Instances, as they mainly refer to Azure Database for MariaDB, Cosmos DB, and other unrelated services.

To achieve your goal, I'll demonstrate how to deploy a Docker container running MariaDB on Azure using Pulumi with Azure Container Instances. We'll use the `azure-native` package to provision a container group, which is a collection of containers that get scheduled on the same host machine.

Here's a step-by-step explanation followed by the Pulumi TypeScript program to create an Azure Container Instance running MariaDB:

1. We begin by importing necessary Pulumi and Azure-native SDK components.
2. Next, we define the resource group where our resources will live.
3. Then, we create a container group with a specific container instance using the Docker image for MariaDB.
4. We expose the MariaDB server on a public IP to allow external access.
5. Finally, we set the relevant environment variables according to the official MariaDB Docker image requirements, like setting the root password.

Below is a detailed Pulumi program that deploys a Docker container with MariaDB on Azure:

```typescript
import * as pulumi from "@pulumi/pulumi";
import * as azure_native from "@pulumi/azure-native";

// Create an Azure Resource Group
const resourceGroup = new azure_native.resources.ResourceGroup("myResourceGroup");

// Define the container for MariaDB
const mariadbContainer = new azure_native.containerinstance.ContainerGroup("mariadbContainer", {
    containers: [{
        name: "mariadb",
        image: "mariadb:latest", // Using the official MariaDB Docker image
        resources: {
            requests: {
                cpu: 1.0,
                memoryInGB: 1.5,
            },
        },
        environmentVariables: [
            {
                name: "MYSQL_ROOT_PASSWORD", // Important: This should be secured
                value: "mySecurePassword", // Replace with a secure password
            },
        ],
        ports: [{ port: 3306 }],
    }],
    osType: "Linux",
    ipAddress: {
        type: "Public",
        ports: [{
            protocol: "TCP",
            port: 3306, // Default MariaDB port
        }],
    },
    resourceGroupName: resourceGroup.name,
    restartPolicy: "OnFailure", // Restart the container if it fails
});

// Export the public IP address of the container
export const publicIpAddress = mariadbContainer.ipAddress.apply(ip => ip.ip);

```

This program sets up a MariaDB server running in a container that's accessible over the internet. Keep the following things in mind:

- The password provided here (`"mySecurePassword"`) is for demo purposes. You should generate a secure password and manage it using best practices, such as Azure Key Vault.
- By default, the server is exposed to the internet on port 3306, which is not secure. For production use, consider configuring a firewall rule, network security group, or use a private IP with a VPN.
- The `restartPolicy` is set to "OnFailure", so the container will be restarted if the MariaDB process crashes.
- The Container Group is placed in a new resource group, which is a logical container that holds related resources for an Azure solution.

Make sure you have Pulumi installed and configured with your Azure account. Save this file with a `.ts` extension, then run `pulumi up` to deploy your MariaDB container to Azure.