CaptainCore CLI

CaptainCore is a WordPress management toolkit for hosting professionals. Built with Cobra in Go, it manages WordPress sites at scale via SSH and WP-CLI.

Features

• Backups -- Incremental backups with Restic to B2 cloud storage
• Quicksaves -- Git-based change tracking for plugins, themes, and config
• Uptime Monitoring -- Parallel HTTP checks with SQLite-backed stats and email alerts
• SSH Management -- Direct SSH and remote script execution across sites
• WordPress Updates -- Automated core, plugin, and theme updates with before/after diffs
• Provider Integrations -- Kinsta and GridPane hosting provider APIs
• HTTP Server -- REST + WebSocket API for remote command dispatch

Project Structure

~/.captaincore/
├── captaincore.go          # Entry point
├── cmd/                    # Cobra command definitions
├── models/                 # GORM data models (SQLite)
├── config/                 # Config file parsing
├── providers/              # Hosting provider integrations (Kinsta, GridPane)
├── apiclient/              # HTTP client for CaptainCore API
├── server/                 # HTTP server (REST + WebSocket)
├── app/                    # Bash scripts for operations
├── lib/
│   ├── remote-scripts/     # Bash scripts executed on sites via SSH
│   ├── arguments           # Argument parsing helpers
│   └── excludes            # Backup exclusion rules
├── config.json             # CLI configuration (see config-sample.json)
├── data/                   # Runtime data (databases, keys, payloads)
├── go.mod / go.sum
├── install.sh              # curl | bash installer
└── .goreleaser.yml         # Release builds (linux/darwin, amd64/arm64/armv7)

Requirements

• Rclone -- cloud storage sync
• Restic -- encrypted backups
• Git

Installation

# Linux and macOS
curl -fsSL https://raw.githubusercontent.com/CaptainCore/captaincore/master/install.sh | bash

The installer downloads the release build for your platform (Linux or macOS on x86_64, arm64 or armv7), verifies it against the release checksums and installs it as /usr/local/bin/captaincore. The binary carries its own runtime scripts and unpacks them into ~/.captaincore/ the first time it runs, so there is nothing else to clone. Set INSTALL_DIR to install somewhere else, or CAPTAINCORE_VERSION=v1.0.0 to pin a release.

Then connect it to your CaptainCore Manager site (a WordPress site with pretty permalinks enabled and the CaptainCore Manager plugin active). One command pairs both directions: it fetches the Manager's CLI token, and with --server-url it registers this machine's address so the Manager can dispatch jobs to captaincore server. No wp-config constants needed.

captaincore connect --server-url=https://captaincore-api.example.com

Keep it current with the built-in updater, which checks GitHub for a newer release, verifies the download and swaps the binary in place:

captaincore upgrade          # install the latest release
captaincore upgrade --check  # only report, exit 1 when behind

Releases are published at https://github.com/CaptainCore/captaincore/releases for manual download.

To build from source (requires Go 1.25+):

git clone https://github.com/CaptainCore/captaincore.git ~/.captaincore/
cd ~/.captaincore
go build -o captaincore .

A source checkout owns its own app/ and lib/ scripts. captaincore upgrade and install.sh detect the .git directory and leave it alone; update a checkout with git pull and a rebuild.

Configuration

captaincore connect writes config.json for you. To configure by hand, copy config-sample.json to config.json and set:

• System config -- server paths, master SSH connection, fleet mode
• Per-tenant config -- API keys, cloud storage remotes (rclone), branding, site list

Usage

# Site operations
captaincore site list
captaincore site get <site>
captaincore ssh <site>

# Backups
captaincore backup generate <site>
captaincore backup list <site>
captaincore backup download <site>

# Quicksaves (change tracking)
captaincore quicksave generate <site>
captaincore quicksave list <site>
captaincore quicksave show-changes <site>

# Monitoring
captaincore monitor

# Updates
captaincore update <site>

# Bulk operations (target groups)
captaincore backup generate @all
captaincore update @production

# Fleet mode (multi-tenant)
captaincore backup generate @all --fleet

# Start HTTP server
captaincore server

Run captaincore --help for a full list of commands.

Releasing

git tag -a v1.0.0 -m "v1.0.0"
git push origin v1.0.0
goreleaser release --snapshot --skip-publish --clean    # Preview
goreleaser release --skip-validate --clean              # Publish

Documentation

Refer to docs.captaincore.io for full documentation.

License

MIT License. See license for details.