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Automated WordPress deployment from a single terminal command

We created a bash installer (generated by an AI coding agent) that automates an end-to-end WordPress deployment for a given hostname and Cloudflare TLS assets. The script performs the following technical steps:

• Provision configuration and secrets

  • Prompts for the target hostname and accepts Cloudflare certificate and private key (PEM format) from stdin or files.
  • Validates presence and basic formatting of TLS materials before proceeding.

• Filesystem and permissions

  • Creates the web root (e.g., /var/www/hostname) and sets ownership to the web server user.
  • Places WordPress core files, a custom wp-config.php, and any supporting runtime files.
  • Secures sensitive files (chmod 600 for private keys, restrictive umask for configs).

• Virtual host and TLS setup

  • Creates an Nginx (or Apache) virtual host config bound to the hostname.
  • Installs the provided Cloudflare certificate and key to the system or site-specific TLS path and references them from the virtual host config.
  • Reloads the webserver to activate the new site.

• Database and runtime wiring

  • Either creates a local MySQL/MariaDB database and user, or uses supplied DB connection parameters.
  • Writes DB credentials into wp-config.php with secure salts (randomized via openssl or /dev/urandom).
  • Ensures proper WP filesystem permissions for plugin/theme updates.

• Headless HTTP-based WordPress setup

  • Uses curl POST requests to the WordPress setup endpoints (e.g., wp-admin/install.php, XML-RPC/REST endpoints or wp-cli via HTTP hooks) to complete site title, admin account, and initial configuration noninteractively.
  • Waits and polls the site URL until HTTP 200 responses indicate readiness.

• Post-install automation

  • Installs and activates a list of plugins (via wp-cli if available, or by downloading plugin zips and populating wp-content/plugins).
  • Removes default or old themes from wp-content/themes.
  • Performs cache warmup, rewrites permalinks, and runs any required WP-CLI commands (cron scheduling, generating sample content).
  • Cleans up temporary files and logs, and prints a short deployment summary including URL and admin user.

Security and operational notes embedded in the script:

• The script stores minimal secrets on disk and restricts file permissions; it prefers ephemeral in-memory handling when possible.
• It includes error checking after each step, with rollbacks on failures (e.g., remove virtual host if TLS install fails).
• It uses idempotent operations so re-running the script for the same hostname is safe or will clearly report conflicts.

The result: a single CLI entry that creates the site, wires TLS, finishes WordPress installation via HTTP calls, installs plugins, removes unwanted themes, and finalizes runtime configuration — all noninteractively from the terminal.

Example single-line prompt (AI-generated during this article; not necessarily the exact prompt used to produce our script) to give to a coding model to generate a similar bash installer:

"Generate a bash script that: accepts a hostname as input, prompts for SSL certificate/key (PEM) and installs the files, creates /var/www/hostname, installs WordPress core and secures wp-config.php with randomized salts, generates a MySQL database and user with a random password, writes an Nginx virtual host referencing the supplied TLS files, reloads nginx, completes wp-admin installation noninteractively using curl, installs and activates specified plugins, deletes default themes, sets secure filesystem permissions. The script should output the WordPress site URL, admin login credentials (including generated admin password) on success.
"

Questions or want to see the actual script structure or specific snippets (virtual host, wp-config generation, curl install calls)? Ask in the comments.

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