Add ./ealgis-common:/ealgis-common to your volumes for web in your ealgis docker-compose.yml file.
Run inside your ealgis_web_1 container:
pip uninstall --yes ealgis_common && pip install --editable /ealgis-common
https://stackoverflow.com/a/38997026
Setup an automatic rsync from the root of your Ealgis directory (assuming your ealgis-common repo is in the same parent folder):
alias run_rsync='rsync -va --delete ../ealgis-common/ ./ealgis-common'
run_rsync; fswatch -o ../ealgis-common | while read f; do run_rsync; done