feat(seo): sitemap and robots.txt

.github/workflows/image_build.yaml

@@ -29,10 +29,14 @@ jobs:
         uses: docker/metadata-action@v5.5.1
         with:
           images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+      - name: get current date
+        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_OUTPUT
       - name: image build and push
         uses: docker/build-push-action@v6.2.0
         with:
           context: .
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
+          build-args: |
+            "BUILD_DATE=${{ steps.date.outputs.date }}"

Dockerfile

@@ -1,8 +1,12 @@
-# Use the official Python 3.8 slim image as the base image
+ARG BUILD_DATE
+
 FROM python:3.10-slim
 
 WORKDIR /app
 
+ENV PORT 5000
+ENV BUILD_DATE=$BUILD_DATE
+
 # Copy the necessary files and directories into the container
 COPY static/ ./static/
 COPY templates/ ./templates/
@@ -12,5 +16,5 @@ COPY app.py requirements.txt  ./
 # Upgrade pip and install Python dependencies
 RUN pip3 install --upgrade pip && pip install --no-cache-dir -r requirements.txt
 
-EXPOSE 5000
-CMD ["gunicorn", "app:app", "-b", "0.0.0.0:5000", "-w", "4"]
+EXPOSE ${PORT}/tcp
+CMD ['gunicorn', 'app:app', '-b', '"0.0.0.0:${PORT}"', '-w', '4']

app.py

@@ -1,12 +1,14 @@
 import re
-from os import listdir
+from os import listdir, getenv
 from os.path import join, splitext
 import yaml
-from flask import Flask, request, render_template
+from flask import Flask, request, Response, render_template, url_for
 from werkzeug.middleware.proxy_fix import ProxyFix
 from flask_minify import minify
 
-app = Flask(__name__)
+DEFAULT_LAST_MOD = getenv('BUILD_DATE') 
+
+app = Flask(__name__, static_folder='static', static_url_path='')
 
 minify(app=app, html=True, js=True, cssless=True)
 
@@ -103,4 +105,23 @@ def contact():
 
 @app.route("/projects", methods=["GET"])
 def projects():
-    return render_template('projects.html.j2')
+    return render_template('projects.html.j2')
+
+def has_no_empty_params(rule):
+    defaults = rule.defaults if rule.defaults is not None else ()
+    arguments = rule.arguments if rule.arguments is not None else ()
+    return len(defaults) >= len(arguments)
+
+@app.route("/sitemap.xml", methods=["GET"])
+def sitemap():
+    static_pages = []
+    for rule in app.url_map.iter_rules():
+        if "GET" in rule.methods and has_no_empty_params(rule):
+            url = url_for(rule.endpoint, **(rule.defaults or {}))
+            static_pages.append(url)
+
+    _, timeline = get_posts()
+    xml = render_template('sitemap.xml.j2', host_url=request.host_url[:-1], static_pages=static_pages, blog_posts=timeline, default_last_mod=DEFAULT_LAST_MOD)
+    r = Response(response=xml, status=200, mimetype="application/xml")
+    r.headers["Content-Type"] = "text/xml; charset=utf-8"
+    return r

static/robots.txt

@@ -0,0 +1,67 @@
+User-agent: Mediapartners-Google
+Disallow: /
+
+User-agent: SemrushBot
+Disallow: /
+
+user-agent: Pinterestbot
+disallow: /
+
+User-agent: AhrefsBot
+Disallow: /
+
+User-agent: dotbot
+Disallow: /
+
+User-agent: Semrush
+Disallow: /
+
+User-agent: GPTBot
+Disallow: /
+
+User-agent: ChatGPT-User
+Disallow: /
+
+User-agent: OAI-SearchBot
+Disallow: /
+
+User-agent: PerplexityBot
+Disallow: /
+
+User-agent: Amazonbot
+Disallow: /
+
+User-agent: ClaudeBot
+Disallow: /
+
+User-agent: anthropic-ai
+Disallow: /
+
+User-agent: Claude-Web
+Disallow: /
+
+User-agent: Omgilibot
+Disallow: /
+
+User-Agent: Applebot
+Disallow: /
+
+User-agent: Bytespider
+Disallow: /
+
+User-agent: Diffbot
+Disallow: /
+
+User-agent: ImagesiftBot
+Disallow: /
+
+User-agent: Omgili
+Disallow: /
+
+User-agent: YouBot
+Disallow: /
+
+User-agent: CCBot
+Disallow: /
+
+Sitemap: https://pve.dev/sitemap.xml

templates/sitemap.xml.j2

@@ -0,0 +1,25 @@
+<?xml version='1.0' encoding='UTF-8'?>
+
+<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+
+         xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd"
+
+         xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
+
+   {% for page in static_pages %}
+   <url>
+      <loc>{{ host_url + page }}</loc>
+      <lastmod>{{ default_last_mod }}</lastmod>
+   </url>
+   {% endfor %}
+   {% for year in blog_posts %}
+      {% for month in blog_posts[year]|sort(reverse=True) %}
+         {% for day in blog_posts[year][month]|sort %}
+   <url>
+      <loc>{{ host_url + blog_posts[year][month][day]['link_to_post'] }}</loc>
+      <lastmod>{{year}}-{{month}}-{{day}}</lastmod>
+   </url>
+         {% endfor %}
+      {% endfor %}
+   {% endfor %}
+</urlset>