Feat: local Streamlit setup #90
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transitioning to streamlit for viz
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but ignore streamlit_app/apps directory, with user-submitted code
and tests with a folder of test apps
walk through the streamlit_ap/apps/ directory and any subdirectory(ies) looking for app_*.py files, which are assumed to contain a streamlit app each construct a multipage streamlit site from all the discovered apps - page titles like Directory | subdirectory | app_name - page URLs like http://localhost:8501/directory--subdirectory--name update the launch config for with and without the sidebar
so e.g. Django models can be queried from Streamlit apps
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show the bikeshare sample in an iframe in a Django template served by a Django route/view
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lalver1
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Apr 15, 2025
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This looks great! I was able to run the 3 scenarios without a problem 👍
Using streamlit_app/utils.py and
Line 35 in 4e4d606
streamlit_app/apps) is the key feature that will allow Traffic Ops to easily add new visualizations.
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Closes #71
What this PR does
streamlitservice to Compose file, which builds and runsstreamlit_app/Dockerfilepemsapp imagestreamlitCompose service launchesstreamlit_app/main.pyupon startupstreamlit_app/main.pydiscovers Streamlit apps under thestreamlit_app/apps/directory and creates and runs a single large Multipage appstreamlit_app/apps/or its subdirectories, that have a filename starting withapp_streamlitand additional dependencies in the devcontainer to allow running and debugging the apps locallypygwalkerconfig previously created by Traffic OpsReviewing this PR
Checkout this branch locally (not in a devcontainer)
Create an
.envfrom the sample if you don't have one already.Build and run the
streamlitservicebin/build.shto build all 3 services (app,dev,streamlit)docker compose up streamlitto start the service and connect to its terminallocalhostURL👋 Welcome to Streamlit!message in the terminal asking for your email, just hit enterlocalhostURL, to open the Streamlit app in your browser/sample--bikeshareand see the bikeshare sample Streamlit app loadLoad the devcontainer
streamlit_app/main.pyfile and swap to theRun & DebugtabStreamlit, yes sidebarfrom the dropdown, and hit the play button (orF5)Local URLfrom the terminal by Ctrl/Cmd-click or copy/paste (should behttp://localhost:8501)Test the Django integration
Run & Debugtab, choose theStreamlit, no sidebarand start it upRun & Debugtab, chooseDjango: PeMS Clientand start it up/route)/streamlitto see a page that embeds the Streamlit sample via<iframe>