adapted docker ubuntu-20

docker/ubuntu-20.04/Dockerfile

@@ -4,10 +4,15 @@ ENV LANG C
 ENV DEBIAN_FRONTEND noninteractive
 # qtbase5-dev skipped
 RUN apt-get update && \
+    apt-get upgrade -y && \
     apt-get dist-upgrade -y && \
     apt-get install -y --no-install-recommends git ca-certificates build-essential cmake pkg-config libreadline-dev gcc-arm-none-eabi libnewlib-dev libbz2-dev libbluetooth-dev libpython3-dev libssl-dev sudo && \
     apt-get clean
 
+RUN apt install -y python3-minimal && \
+    apt install -y python3-pip && \
+    python3 -m pip install ansicolors sslcrypto
+
 # Create rrg user
 RUN useradd -ms /bin/bash rrg
 RUN passwd -d rrg

docker/ubuntu-20.04/README.md

@@ -1,9 +1,22 @@
+# Notes on run_tests.sh script
+This script does both setup the mirrors and pip install and then run a 
+bunch of different builds with make and cmake together with the different combos 
+of RDV4, GENERIC, BTADDON combos. 
+
+If all tests OK,  the script will finish.
+
+
 # Notes to run tests
+The script is to be run in proxmark root folder inside the docker env.
+
+```
+docker/ubuntu-20.04/run_tests.sh;
+``` 
+
+Or if you want to run single test,  
 
 ```
 sudo apt update
-sudo apt install -y python3-minimal
-sudo apt install -y python3-pip
-python3 -m pip install ansicolors sslcrypto
+make clean; make -j
 tools/pm3_tests.sh --long
 ```

docker/ubuntu-20.04/docker_run.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-docker run --volume=$(pwd)/../..:/home/rrg/proxmark3 -it pm3-ubuntu-20.04:1.0
+docker run --volume=$(pwd)/../..:/home/rrg/proxmark3 -w /home/rrg/proxmark3 -it pm3-ubuntu-20.04:1.0