Update base image and optimize docker builds. Add links to server index page

.github/workflows/docker-image.yml

@@ -0,0 +1,49 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches: [ "main" ]
+  workflow_dispatch: # Allows you to run it manually if needed
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    # Added permissions for GHCR
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v3
+
+    - name: Log in to GHCR
+      uses: docker/login-action@v3
+      with:
+        registry: ghcr.io
+        username: ${{ github.actor }}
+        password: ${{ secrets.GITHUB_TOKEN }}
+
+    - name: Extract Metadata (Tags/Labels)
+      id: meta
+      uses: docker/metadata-action@v5
+      with:
+        images: ghcr.io/${{ github.repository_owner }}/grott
+        tags: |
+          type=sha,format=short
+          type=raw,value=latest
+
+    - name: Build and push
+      uses: docker/build-push-action@v5
+      with:
+        context: .
+        file: docker/dockerfile
+        push: true
+        tags: ${{ steps.meta.outputs.tags }}
+        labels: ${{ steps.meta.outputs.labels }}
+        # Added caching to speed up subsequent builds
+        cache-from: type=gha
+        cache-to: type=gha,mode=max

docker/dockerfile

@@ -1,26 +1,23 @@
-FROM python:3.7-slim
+FROM python:3.12-slim
 
 ENV LANG en_US.UTF-8
 ENV LC_ALL en_US.UTF-8
 
 # Run updates
-RUN apt-get clean && apt-get update && apt-get upgrade -y
-
-# Set the locale
-RUN apt-get install -y locales && locale-gen en_US.UTF-8
+RUN apt-get clean && apt-get update && apt-get upgrade -y && apt-get install -y locales && locale-gen en_US.UTF-8
 
 #Install required python packages 
-RUN pip install paho-mqtt
-RUN pip install requests 
-RUN pip install influxdb
-RUN pip install influxdb-client 
+RUN pip install --no-cache-dir \
+    psutil \
+    paho-mqtt \
+    requests \
+    influxdb \
+    influxdb-client
 
-COPY grott.py /app/grott.py
-COPY grottconf.py /app/grottconf.py
-COPY grottdata.py /app/grottdata.py
-COPY grottproxy.py /app/grottproxy.py
-COPY grottsniffer.py /app/grottsniffer.py
-COPY grott.ini /app/grott.ini
+COPY grott.py grottconf.py grottdata.py grottproxy.py \
+     grottsniffer.py grottserver.py examples/grott.ini \
+     examples/Extensions/grottext.py examples/Extensions/grotcsv.py \
+     /app/
 
 WORKDIR /app
-CMD ["python", "-u", "grott.py", "-v"]
+CMD ["python", "-u", "grott.py", "-v"]

grottserver.py

@@ -249,10 +249,18 @@ def do_GET(self):
                     f.close()
                     return
                 except IOError:
-                    responsetxt = b"<h2>Welcome to Grott the growatt inverter monitor: " + str.encode(vrmserver) + b"</h2><br><h3>Made by Ledidobe, Johan Meijer</h3>"
+                    responsetxt = b"""<h2>Welcome to Grott the growatt inverter monitor: """ + str.encode(vrmserver) + b"""</h2>
+                    <h3>Made by Ledidobe, Johan Meijer</h3>
+                    <h3>Supported paths:</h3>
+                    <ul>
+                        <li><a href="/info">Server Info</a> - View server status and connection information</li>
+                        <li><a href="/datalogger">Datalogger</a> - Datalogger operations and registry</li>
+                        <li><a href="/inverter">Inverter</a> - Inverter operations and registry</li>
+                        <li><a href="/help">Help</a> - Help documentation</li>
+                    </ul>"""
                     responserc = 200
                     responseheader = "text/html"
-                    htmlsendresp(self,responserc,responseheader,responsetxt)
+                    htmlsendresp(self, responserc, responseheader, responsetxt)
                     return
 
             elif self.path.startswith("info"):