fix lint warnings

.github/workflows/ci.yml

@@ -25,6 +25,8 @@ jobs:
     - uses: actions/checkout@v2
     - name: Lint Code Base
       uses: docker://github/super-linter:v2.1.0
+      env:
+        VALIDATE_CSS: false
 
   docker:
     runs-on: ubuntu-latest

Dockerfile

@@ -1,6 +1,7 @@
 FROM python:3.8-alpine
 
-RUN apk add iproute2
+RUN apk add --no-cache iproute2 && \
+    rm -rf /var/cache/apk/*
 
 RUN pip3 install Flask
 

README.md

@@ -5,78 +5,87 @@
 
 A lightweight Python-based Web-GUI for Linux traffic control (`tc`) to set, view and delete traffic shaping rules. The Web-GUI is intended for short-term isolated testbeds or classroom scenarios and does not contain any security mechanisms.
 
-No further changes are planned right now, but pull requests are welcome.
-
 ![tcgui screenshot](tcgui.png)
 
 ## Requirements
 
 - Tested with Ubuntu 16.04 LTS & Ubuntu 18.04 LTS & Raspbian 4.14.98-v7+ (stretch, Debian 9.8)
 - `netem` tools & `python3-flask` are required
-    - Ubuntu 16.04 : Install with `sudo apt install iproute python3-flask`
-    - Ubuntu 18.04 : Install with `sudo apt install iproute2 python3-flask`
-    - Ubuntu 20.04 : Install with `sudo apt install iproute2 python3-flask`
+  - Ubuntu 16.04 : Install with `sudo apt install iproute python3-flask`
+  - Ubuntu 18.04 : Install with `sudo apt install iproute2 python3-flask`
+  - Ubuntu 20.04 : Install with `sudo apt install iproute2 python3-flask`
 - More information:
-    - https://calomel.org/network_loss_emulation.html
-    - https://wiki.linuxfoundation.org/networking/netem
+  - [network_emulation_loss](https://calomel.org/network_loss_emulation.html)
+  - [netem](https://wiki.linuxfoundation.org/networking/netem)
 
 ## Usage
 
-- Execute the main.py file and go to http://localhost:5000:
+Execute the main.py file and go to [http://localhost:5000](http://localhost:5000):
 
-    ```
-    sudo python3 main.py
+```shell
+sudo python3 main.py
 
-    --ip IP               The IP where the server is listening
-    --port PORT           The port where the server is listening
-    --dev [DEV [DEV ...]] The interfaces to restrict to
-    --regex REGEX         A regex to match interfaces
-    --debug               Run Flask in debug mode
-    ```
+--ip IP               The IP where the server is listening
+--port PORT           The port where the server is listening
+--dev [DEV [DEV ...]] The interfaces to restrict to
+--regex REGEX         A regex to match interfaces
+--debug               Run Flask in debug mode
+```
 
-- The tool will read your interfaces and the current setup every time the site is reloaded
+The tool will read your interfaces and the current setup every time the site is reloaded
 
 ## Docker
 
 You can use docker to run this application. Run with host network (`--network host`) and network admin capabilities (`--cap-add=NET_ADMIN`). Site will be available on default port Ex: `http://dockerhost:5000`
 
-    docker run -dit --restart unless-stopped --network host --cap-add=NET_ADMIN ncareau/tcgui:latest
-
+```shell
+docker run -dit --restart unless-stopped --network host --cap-add=NET_ADMIN ncareau/tcgui:latest
+```
 
 You can change the configuration using these Environment Variables:
 
-* **TCGUI_IP** - *Default `0.0.0.0`* - Use to change listening address
-* **TCGUI_PORT** - *Default `5000`* - Use to change the listening port
-* **TCGUI_DEV** - The interfaces to restrict to
-* **TCGUI_REGEX** - A regex to match interfaces
+- **TCGUI_IP** - *Default `0.0.0.0`* - Use to change listening address
+- **TCGUI_PORT** - *Default `5000`* - Use to change the listening port
+- **TCGUI_DEV** - The interfaces to restrict to
+- **TCGUI_REGEX** - A regex to match interfaces
 
-If using an interface bridge, docker might cause issue with the bridge. (https://askubuntu.com/questions/1073501/docker-breaks-network-bridging-to-virtual-machines)
+If using an interface bridge, docker might cause issue with the bridge. ([askubunut](https://askubuntu.com/questions/1073501/docker-breaks-network-bridging-to-virtual-machines))
 To fix this, create a file `/etc/docker/daemon.json` with the following contents:
 
-	{
-	    "iptables" : false
-	}
+```json
+{
+    "iptables" : false
+}
+```
 
 ## Test & Develop
 
 You can use the supplied Vagrantfile to test tcgui quickly. Vagrant will setup two machines, sender (192.168.210.2) and a receiver (192.168.210.3):
 
-	vagrant up
+```shell
+vagrant up
+```
 
 Afterwards connect to the sender and start the GUI:
 
-	vagrant ssh sender
-	cd /vagrant
-	sudo python3 main.py --ip 0.0.0.0 --debug
+```shell
+vagrant ssh sender
+cd /vagrant
+sudo python3 main.py --ip 0.0.0.0 --debug
+```
 
 Start a receiver in the receiving VM:
 
-	vagrant ssh receiver
-	iperf3 -s
+```shell
+vagrant ssh receiver
+iperf3 -s
+```
 
 Send a packet stream from the sender to the receiver:
 
-	vagrant ssh sender
-	iperf3 -c 192.168.210.3 -t 300
+```shell
+vagrant ssh sender
+iperf3 -c 192.168.210.3 -t 300
+```
 
-Now access the GUI at http://192.168.210.2:5000/ and change the rate of interface eth1. You should see the sending/receiving rate to decrease to the set amount.
+Now access the GUI at [http://192.168.210.2:5000/](http://192.168.210.2:5000/) and change the rate of interface eth1. You should see the sending/receiving rate to decrease to the set amount.

requirements.txt

@@ -1,2 +1,2 @@
 black
-Flask
+flask