add: docker folder for image build

docker/Dockerfile

@@ -0,0 +1,24 @@
+FROM nginx:alpine
+
+ARG HUGO_VERSION
+ENV HUGO_VERSION=${HUGO_VERSION}
+ENV HUGO_DEST=/usr/share/nginx/html
+
+# Install git and curl
+RUN apk add --no-cache git curl
+
+# Download Hugo
+RUN curl -sSL https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_Linux-64bit.tar.gz \
+    | tar -xz -C /usr/local/bin hugo
+
+# Add entrypoint script
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod +x /entrypoint.sh
+
+# Copy custom nginx config
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+# Nginx serves on port 80
+EXPOSE 80
+
+# Set default entrypoint
+ENTRYPOINT ["/entrypoint.sh"]

docker/entrypoint.sh

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+#!/bin/sh
+set -e
+
+# Configuration
+REPO_URL="${REPO_URL:-https://git.vezpi.me/Vezpi/blog.git}"
+BRANCH="${BRANCH:-preview}"
+CLONE_DIR="${CLONE_DIR:-/blog}"
+
+echo "Cloning $REPO_URL (branch: $BRANCH)..."
+git clone --depth 1 --branch "$BRANCH" "$REPO_URL" "$CLONE_DIR"
+
+echo "Building site with Hugo $HUGO_VERSION..."
+hugo --source "$CLONE_DIR" --destination "$HUGO_DEST" --cleanDestinationDir
+
+echo "Starting Nginx..."
+exec nginx -g 'daemon off;'

docker/nginx.conf

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+map $http_accept_language $lang {
+	default en;
+	~fr fr;
+}
+
+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Redirect users to their language home page
+    rewrite ^/$ /$lang/ redirect;
+
+    location / {
+        try_files $uri $uri/ =404;
+    }
+
+    # Custom 404 page
+    error_page 404 /$lang/404.html;
+    location = /$lang/404.html {
+        internal;
+    }
+}
+