Merge branch 'master' into dev

Dockerfile.python3

@@ -1,5 +1,16 @@
 FROM kennethjiang/octopi-1.7.2.2:python3
 
+
+RUN echo "deb http://archive.debian.org/debian/ stretch main non-free contrib" > /etc/apt/sources.list && \
+    echo "deb-src http://archive.debian.org/debian/ stretch main non-free contrib" >> /etc/apt/sources.list && \
+    echo "deb http://archive.debian.org/debian-security/ stretch/updates main" >> /etc/apt/sources.list && \
+    echo "deb-src http://archive.debian.org/debian-security/ stretch/updates main" >> /etc/apt/sources.list
+
+RUN echo 'Acquire::Check-Valid-Until "false";' > /etc/apt/apt.conf.d/99no-check-valid-until
+
+
+RUN apt-get update
+
 RUN apt-get install -y netcat
 
 RUN pip3 install ipdb

README.md

@@ -25,13 +25,13 @@ Follow [Obico Setup Guide](https://www.obico.io/docs/user-guides/octoprint-plugi
 docker compose up -d
 ```
 
-Will start a series of containers that support the plugin (eg mock video streaming) as well as an octoprint container for python2 and python3. However, to enable interactive debugging the plugin containers are not running the plugins yet. 
+Will start a series of containers that support the plugin (eg mock video streaming) as well as an octoprint container for python2 and python3. However, to enable interactive debugging the plugin containers are not running the plugins yet.
 
 In another terminal:
 
 To install the plugin in the container run:
 ```bash
-docker compose exec {op/op_python_2} octoprint dev plugin:install
+docker compose exec {op/op_python2} octoprint dev plugin:install
 ```
 
 Then to start octoprint (and by extension the plugin) run: