Can Ansible and Pulumi be integrated to work together effectively?

Is it possible to create multiple DigitalOcean droplets in a loop and then use Ansible to configure software and security measures on them, similar to how Terraform works? If so, what would the JavaScript/TypeScript code for this look like?

I couldn't find any examples or references to using Pulumi with Ansible on Google.

javascripttypescriptansiblepulumi

Answer №1

Affirmative, this can indeed be accomplished.

There are two approaches you can take:

You have the option to define your ansible execution within the userdata of the DigitalOcean droplet. This method is compatible with all language SDKs.

Alternatively, if you desire functionality similar to Terraform's remote-exec provisioner, you can utilize Pulumi's dynamic providers to establish a provisioner.

At present, Dynamic Providers are supported in the TypeScript and Python SDKs. A python example can be found here, and a TypeScript example can be accessed here

Answer №2

This snippet demonstrates how you can leverage it to deploy WordPress through a playbook using the local.Command provider in conjunction with Ansible for provisioning on a remote host.

import * as command from '@pulumi/command'
import * as pulumi from '@pulumi/pulumi'
import * as fs from 'fs'
import {URL} from 'url'
import YAML from 'yaml'

const __dirname = new URL('.', import.meta.url).pathname
nunjucks.configure(`${__dirname}/templates`)

export interface WordPressArgs {
  fqdn: pulumi.Input<string>
  ip: pulumi.Input<string>
  sshPort: pulumi.Input<number>
  sshPrivateKey: pulumi.Input<string>
  sshUser: pulumi.Input<string>
  domainUser: pulumi.Input<string>
  domainUserHomeDir?: pulumi.Input<string>
  domainUserDocumentRootDir?: pulumi.Input<string>
  nginxUser?: pulumi.Input<string>
  wordpressLanguage?: pulumi.Input<string>
  wordpressDbName: pulumi.Input<string>
  wordpressDbUser: pulumi.Input<string>
  wordpressDbPassword: pulumi.Input<string>
  wordpressDbHost?: pulumi.Input<string>
  wordpressTitle?: pulumi.Input<string>
  wordpressAdminUser?: pulumi.Input<string>
  wordpressAdminPassword: pulumi.Input<string>
  wordpressAdminEmail?: pulumi.Input<string>
  deploymentEnvironment?: pulumi.Input<'production' | 'staging' | 'testing'>
}

export class WordPress extends pulumi.ComponentResource {
  private readonly wordPressInstallCommand: pulumi.Output<string>

  constructor(
    name: string,
    args: WordPressArgs,
    opts?: pulumi.ComponentResourceOptions
  ) {
    super('system:virtualmin:wordpress', name, {}, opts)

    const cmd = pulumi
      .all(
        [
          args.fqdn,
          args.ip,
          args.sshPort,
          args.sshUser,
          args.sshPrivateKey,
          args.domainUser,
          args.nginxUser,
          args.wordpressLanguage,
          args.wordpressDbHost,
          args.wordpressDbName,
          args.wordpressDbUser,
          args.wordpressDbPassword,
          args.wordpressTitle,
          args.wordpressAdminUser,
          args.wordpressAdminPassword,
          args.wordpressAdminEmail,
          args.deploymentEnvironment]
      )
      .apply((
          [
            fqdn,
            ip,
            sshPort,
            sshUser,
            sshPrivateKey,
            domainUser,
            nginxUser,
            wordpressLanguage,
            wordpressDbHost,
            wordpressDbName,
            wordpressDbUser,
            wordpressDbPassword,
            wordpressTitle,
            wordpressAdminUser,
            wordpressAdminPassword,
            wordpressAdminEmail,
            deploymentEnvironment]
        ) => {

          fs.writeFileSync(
            `/tmp/ansible.pem`,
            sshPrivateKey.toString(),
            {mode: 0o600}
          )

          fs.writeFileSync(
            '/tmp/inventory',
            YAML.stringify(
              {
                all: {
                  hosts: {
                    remote: {
                      ansible_host: ip,
                      ansible_port: sshPort,
                      ansible_user: sshUser,
                      ansible_private_key_file: '/tmp/ansible.pem',
                      ansible_host_key_checking: false
                    }
                  }
                }
              }),
            {mode: 0o600}
          )

          const playbookVars = pulumi.interpolate`${JSON.stringify({
            fqdn,
            deployment_environment: deploymentEnvironment || 'staging',
            domain_user: domainUser,
            nginx_user: nginxUser || 'www-data',
            wordpress_language: wordpressLanguage || 'en_US',
            wordpress_db_host: wordpressDbHost || 'localhost:3306',
            wordpress_db_name: wordpressDbName,
            wordpress_db_user: wordpressDbUser,
            wordpress_db_password: wordpressDbPassword,
            wordpress_title: wordpressTitle || 'Just a WordPress site',
            wordpress_admin_user: wordpressAdminUser || 'admin',
            wordpress_admin_password: wordpressAdminPassword,
            wordpress_admin_email: wordpressAdminEmail,
            ssl_cert_dir: '/etc/ssl/certs',
            ssl_key_dir: '/etc/ssl/private'
          })}`
          return {create: pulumi.interpolate`ANSIBLE_STDOUT_CALLBACK=json ansible-playbook -i /tmp/inventory ${__dirname}/playbooks/install-wordpress.yaml -e '${playbookVars}'`}
        }
      )


    this.wordPressInstallCommand = cmd.create
    const wordPressInstallation = new command.local.Command(
      'wordpress-installation',
      {
        create: this.wordPressInstallCommand,
      },
      {parent: this}
    )

    this.registerOutputs()
  }
}

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