scripts/in_container/bin/run_tmux

#!/usr/bin/env bash
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# to you under the Apache License, Version 2.0 (the
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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if [ ! -e /usr/local/bin/stop_airflow ]; then
    ln -s "/opt/airflow/scripts/in_container/stop_tmux_airflow.sh" /usr/local/bin/stop_airflow || true
fi
# Use LocalExecutor if not set and if backend is not sqlite as it gives
# better performance
if [[ ${BACKEND} != "sqlite"  ]]; then
    export AIRFLOW__CORE__EXECUTOR=${AIRFLOW__CORE__EXECUTOR:-LocalExecutor}
fi

#this is because I run docker in WSL - Hi Nadella!
export TMUX_TMPDIR=~/.tmux/tmp
if [ -e ~/.tmux/tmp ]; then
    rm -rf ~/.tmux/tmp
fi
mkdir -p ~/.tmux/tmp
chmod 777 -R ~/.tmux/tmp

# Creating a new tmux session (below) will start a new login shell and /etc/profile
# will overwrite the custom Dockerfile PATH variable. Adding the custom PATH export
# to home directory profile here will take precedence.
echo "export PATH=$PATH" >> ~/.profile

# Set Session Name
export TMUX_SESSION="Airflow"

# Start New Session with our name
tmux new-session -d -s "${TMUX_SESSION}"

# Enable mouse interaction with tmux. This allows selecting between the panes
# by clicking with the mouse and also allows scrolling back through terminal
# output with the mouse wheel.
tmux set mouse on

# Name first Pane and start bash
tmux rename-window -t 0 'Main'
tmux send-keys -t 'Main' 'bash' C-m 'clear' C-m

tmux split-window -v
tmux select-pane -t 1
tmux send-keys 'airflow scheduler' C-m

tmux split-window -h
tmux select-pane -t 2
if [[ ${DEV_MODE=} == "true" ]]; then
    tmux send-keys 'airflow webserver -d' C-m
else
    tmux send-keys 'airflow webserver' C-m
fi
if python -c 'import sys; sys.exit(sys.version_info < (3, 7))'; then
    tmux select-pane -t 0
    tmux split-window -h
    tmux send-keys 'airflow triggerer' C-m
fi

# Attach Session, on the Main window
tmux select-pane -t 0
tmux send-keys "/opt/airflow/scripts/in_container/run_tmux_welcome.sh" C-m

tmux attach-session -t "${TMUX_SESSION}":0
rm /usr/local/bin/stop_airflow