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Production Deployment Playbook: docs.printprice.pro

This playbook defines the standardized, safe, and production-validated workflow for deploying the PrintPrice OS Docusaurus documentation to the live environment at docs.printprice.pro.

important

PACKAGE MANAGER & ALIAS COMPATIBILITY: The repository contains a yarn.lock file because it was built and structured using Yarn. Modern Docusaurus versions use npm package aliases (e.g. "react-loadable": "npm:@docusaurus/react-loadable@6.0.0").

  • The Issue: If the production environment is running npm v6.x (or below), running npm install or npm ci will fail because npm v6 does not support package aliases. This causes the error: No matching version found for react-loadable@6.0.0.
  • The Solution: We must build the site using Yarn. Since the server may not have Yarn installed globally (or lacks sudo privileges), the deployment script leverages Node.js Corepack (pre-bundled with Node 16.9+) to locally generate and run a standard Yarn executable shim without root access.

1. Known Build Issues & Workarounds​

A. Docusaurus spawn yarn ENOENT​

If yarn.lock is present in the repository, Docusaurus detects it and attempts to check the Yarn version by running yarn --version. If Yarn is not in the system's PATH, the build fails immediately with spawn yarn ENOENT.

  • Fix: The deployment script uses Corepack to generate a local yarn binary and adds it to the active shell's PATH variable before building, ensuring Docusaurus finds it perfectly.

B. Mermaid SSG Rendering Error​

During the static site generation (SSG) step of the Docusaurus build process, the compilation can crash if Mermaid diagrams are rendered.

  • Symptom: The build terminates with Hook useColorMode is called outside the <ColorModeProvider>. This is caused by Docusaurus 3.9.2 pre-rendering raw markdown pages containing ```text blocks.
  • Fix: Before compiling, we programmatically convert all Markdown/MDX code fences from ```text to ```text. This bypasses the rendering crash while keeping the diagrams readable in plain text.

2. Safe Production Deployment Flow​

Below is the verified, safe, and production-ready script. It automates backups, generates local Yarn shims using Corepack, handles lockfile-based deterministic installation, runs the Mermaid SSG hotfix, and deploys with zero live-site downtime.

set -e

export REPO_URL="https://github.com/drleuman/printprice-docs.git"
export DOCS_ROOT="/var/www/vhosts/printprice.pro/docs.printprice.pro"
export BACKUP_ROOT="/var/www/vhosts/printprice.pro/backups"
export BUILD_ROOT="/var/www/vhosts/printprice.pro/builds"
export TS="$(date +%Y%m%d-%H%M%S)"
export BUILD_DIR="$BUILD_ROOT/printprice-docs-$TS"

echo "=== BACKUP CURRENT SITE ==="
mkdir -p "$BACKUP_ROOT/docs-$TS"
rsync -a --exclude='.git' "$DOCS_ROOT/" "$BACKUP_ROOT/docs-$TS/"

echo "=== CLONE DOCS REPO ==="
mkdir -p "$BUILD_ROOT"
git clone "$REPO_URL" "$BUILD_DIR"
cd "$BUILD_DIR"

echo "=== REPO STATE ==="
git status
git rev-parse --abbrev-ref HEAD
git rev-parse HEAD

echo "=== ENABLE LOCAL YARN VIA COREPACK ==="
mkdir -p "$BUILD_DIR/bin"
corepack enable --install-directory "$BUILD_DIR/bin"
export PATH="$BUILD_DIR/bin:$PATH"

echo "=== INSTALL DEPENDENCIES WITH YARN ==="
yarn install --frozen-lockfile

echo "=== TEMPORARY MERMAID SSG HOTFIX ==="
grep -RIn "^\`\`\`mermaid" docs src 2>/dev/null || true
find docs src -type f \( -name "*.md" -o -name "*.mdx" \) -print0 2>/dev/null \
  | xargs -0 perl -0pi -e 's/```text/```text/g'
grep -RIn "^\`\`\`mermaid" docs src 2>/dev/null || true

echo "=== BUILD DOCUSAURUS ==="
yarn build

echo "=== VERIFY BUILD ==="
test -f build/index.html

echo "=== DEPLOY BUILD ==="
rsync -a --delete --exclude='.git' "$BUILD_DIR/build/" "$DOCS_ROOT/"
cd "$DOCS_ROOT"
touch .nojekyll

echo "=== VERIFY HTTP ==="
curl -I https://docs.printprice.pro/
curl -s https://docs.printprice.pro/ | head -20

3. Rollback Instructions​

If the verification step fails or any critical client issues occur, execute a rollback to restore the previous live state immediately:

export DOCS_ROOT="/var/www/vhosts/printprice.pro/docs.printprice.pro"
export BACKUP_DIR="/var/www/vhosts/printprice.pro/backups/docs-REPLACE_TIMESTAMP"

test -d "$BACKUP_DIR"
rsync -a --delete "$BACKUP_DIR/" "$DOCS_ROOT/"
curl -I https://docs.printprice.pro/

4. Deployment Acceptance Criteria​

The deployment is considered fully valid and complete only if:

  1. Dependency Installation: yarn install --frozen-lockfile succeeds cleanly using the Node Corepack-provided Yarn binary.
  2. Docusaurus compilation: yarn build completes with an exit code of 0.
  3. Build Target Verification: The compiled file build/index.html exists and is populated.
  4. Synchronization: rsync completes cleanly and syncs all pre-rendered HTML/JS/CSS assets to $DOCS_ROOT.
  5. Core HTTP Response: Requesting https://docs.printprice.pro/ returns a 200 OK status.
  6. Route Integrity: Crucial preflight architectural contract URLs resolve successfully with 200 OK status and no 404 redirections.