Notes in reverse chronological order
better use of sa.alchemy text to manage parameters defined a pandera data model and pa.check to ensure the data is timezone naive
getting vscode to debug the streamlit app
need to follow the same principles as for flask and create a launch.json file
then ⌘-F5 will launch the app in debug mode with the port passed through so you can see the streamlit app running in your browser
can't get tabnine to work within devcontainers
cd ./web
pyenv install 3.10
pyenv virtualenv 3.10 devcon2-web
pyenv local devcon2-web
pip install -r requirements.txt
``
not using https://github.com/wesselhuising/pandantic
try https://pandera.readthedocs.io/en/latest/
following https://aeturrell.github.io/coding-for-economists/data-advanced.html#pandera
Note that it can be useful to stand up the other docker services during development as follows esp. the use of 2 compose.yml files in sequence
```sh
docker compose -f compose.yml -f compose.dev.yml up -d --build db synththen using the vs code debugger ...hmmm got stuck here
devcontainers
- you can attached to an already running process; might be useful for debugging but not much use for development since the files are inside the container and not persisted externally
- open a folder in a prebuilt container: means all your tools are there but does not replicate the environment into which you will deploy
- Using VS Code alone, including starting the services
- Using VS Code after having started the services from the command line
open vscode
then follow the prompts to reopen in a devcontainer
this will automatically start the other services (e.g. api) and drop you into a session where you can edit the frontend; but you need to drop into the terminal to run the web service
and ensure you navigate to the workspace folder /workspaces/devcon2/
this is confusing b/c if you inspect docker docker compose ps then the port mapping appears to have been done but there is no app behind port 8300
cd /workspaces/devcon2
python app.py
now you can edit the flask app and b/c the debugger option is switched on in ./web/app.py then you are both able to develop your app and use the provided backend
however to make this work I had to bin all the vscode devcontainer features which stopped the build b/c of issues installing python tools updating pip error externally managed environment see https://pythonspeed.com/articles/externally-managed-environment-pep-668/
now need to stitch together using docker compose then convert to a devcontainer setup will need to think about which service you wish to focus on developing see also https://spin.atomicobject.com/2021/06/16/docker-development-container/
just explored making edits to the dockerfile
since the ./devcontainer/Dockerfile is expressly for developing then it may be best to think of this as a development Docker image. In which case, it seems reasonable for it not to have a CMD or ENTRYPOINT since you're never calling it to 'do' anything
Lots of issues with features in devcontainers.json not working
Currently works by using the FROM mcr.microsoft.com/devcontainers/python:3.10 line which comes pre-built with a vscode user
Having installed the https://aka.ms/vscode-remote/download/containers extension then use the "Open workspace in container" command and you're environment including the terminal should be configured correctly check this by running the hello world app in the vscode terminal, and then opening "localhost:8400" in your browser
python app.pyNote that you must not specify a python version in the feature
python hello_dash.pyI got an error message the first time but not the second time I ran this app.
Loading chunk 790 failed.
(error: http://localhost:8050/_dash-component-suites/dash/dash_table/async-highlight.js)