Move Dockerfile from Conda to pip

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:20.04
+FROM ubuntu:22.04
 
 ARG USER_ID
 ARG GROUP_ID
@@ -15,8 +15,6 @@ RUN useradd -l -u ${USER_ID} -g ${GROUP_ID} onair_dev
 RUN mkdir /home/onair_dev && \
     chown onair_dev /home/onair_dev
 
-# TODO: add ssh with X forwarding
-
 # Install
 RUN \
   apt-get update && \
@@ -39,38 +37,34 @@ RUN \
 
 # OnAIR Dependencies
 RUN \
-  apt-get install -y wget
+  apt-get install -y python3.11 && \
+  apt-get install -y python3.11-dev && \
+  apt-get install -y python3-pip
+
+# Add new packages to install here to prevent re-running previous instructions
 
 # Ensure that all packages are up to date after new packages have been added above
 RUN \
   apt-get update && \
   apt-get -y upgrade && \
   rm -rf /var/lib/apt/lists/*
 
-# Add user to sudoers so that they can up the mqueue depth
+# Add user to sudoers so that they can up the mqueue depth (for cFS)
 RUN adduser onair_dev sudo
 RUN echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
 
-USER onair_dev
+# Make OnAir requirements files accessible by onair_dev user
+COPY requirements-dev.txt /home/onair_dev/requirements-dev.txt
+COPY requirements-run.txt /home/onair_dev/requirements-run.txt
+COPY requirements-unittest.txt /home/onair_dev/requirements-unittest.txt
+COPY requirements-lint.txt /home/onair_dev/requirements-lint.txt
+RUN chown onair_dev /home/onair_dev/requirements*
 
-# Install miniconda
-ENV CONDA_DIR /home/onair_dev/conda
-RUN \
-  mkdir -p $CONDA_DIR && \
-  wget https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-Linux-x86_64.sh -O ~/miniforge.sh && \
-  bash ~/miniforge.sh -b -u -p $CONDA_DIR && \
-  rm -rf ~/miniforge.sh
-ENV PATH=$CONDA_DIR/bin:$PATH
+USER onair_dev
 
-# Make OnAir requirements file accessible by onair_dev user
-COPY environment_dev.yml /home/onair_dev/environment.yml
-RUN \
-  . $CONDA_DIR/etc/profile.d/conda.sh && \
-  conda init bash && \
-  . ~/.bashrc && \
-  conda env create -f /home/onair_dev/environment.yml && \
-  conda activate onair
+# Python stuff is being installed for the local user
+ENV PATH="${PATH}:/home/onair_dev/.local/bin"
 
-# Make sure that the onair conda environment is loaded
-RUN \
-  echo "conda activate onair" >> ~/.bashrc
+# Install OnAIR deps
+RUN python3.11 -m pip install --upgrade pip setuptools wheel
+RUN python3.11 -m pip install --user -r /home/onair_dev/requirements-dev.txt