I'm working on building an environment for an educational setting, but for some reason my dev container isn't able to connect to the databases that are being generated by the docker-compose.yml. See below:

# docker-compose.yml
version: '3.9'

services:
  conda:
    image: continuumio/anaconda3:latest
    build:
      context: ..
      dockerfile: .devcontainer/Dockerfile
    command: sleep infinity
    volumes:
      - ..:/workspace:cached

  mongo:
    image: mongo:latest
    restart: unless-stopped
    volumes:
      - dbs:/data/db

  postgres:
    image: postgres:latest
    restart: unless-stopped
    volumes:
      - dbs:/var/lib/postgresql/data
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
      POSTGRES_DB: postgres
  
volumes:
  dbs:

When I attempt to connect to the PostgreSQL database using SQLTools on port 5432 on localhost, I get the following:

[1642491269885] ERROR (ls): Connecting error: {"code":-32001,"data":{"driver":"PostgreSQL","driverOptions":{}},"name":"Error"}
    ns: "conn-manager"
[1642491269886] ERROR (ext): ERROR: Error opening connection connect ECONNREFUSED 127.0.0.1:5432, {"code":-32001,"data":{"driver":"PostgreSQL","driverOptions":{}}}
    ns: "error-handler"

As a possibly important aside, I am also noticing that the PostgreSQL instance is constantly restarting. Here is what the docker container set looks like:

However, I should note that I can't connect to the mongodb instance either, using the Mongo for VS Code extension.

Let me know how I can make this work!