Nginx + App + PostgreSQL

services:
  nginx:
    image: docker.io/nginx:stable
    restart: always
    depends_on:
      postgres:
        condition: service_started
    volumes:
    - webapp-nginx:/etc/nginx/conf.d:Z
    network_mode: service:postgres
  app:
    image: docker.io/python:3.12-slim
    restart: always
    environment:
    - DATABASE_URL=postgresql://appuser:IR6X4_ensgm5EclNYQ9kkQ@127.0.0.1:5432/appdb
    entrypoint:
    - python
    - -m
    - http.server
    - '8000'
    - --directory
    - /app
    depends_on:
      postgres:
        condition: service_started
    volumes:
    - webapp-app:/app:Z
    network_mode: service:postgres
  postgres:
    image: docker.io/postgres:16
    restart: always
    environment:
    - POSTGRES_USER=appuser
    - POSTGRES_PASSWORD=IR6X4_ensgm5EclNYQ9kkQ
    - POSTGRES_DB=appdb
    user: 999:999
    volumes:
    - webapp-db:/var/lib/postgresql/data:Z
    ports:
    - 8080:80
    - 8000:8000
volumes:
  webapp-nginx: null
  webapp-app: null
  webapp-db: null

#!/bin/bash
set -e

# ── Create named volumes ───────────────────────────────────────────
# Named volumes are created automatically — no UID/GID permission adjustment needed.
podman volume exists webapp-nginx || podman volume create webapp-nginx
podman volume exists webapp-app || podman volume create webapp-app
podman volume exists webapp-db || podman volume create webapp-db

# ── Create pod ─────────────────────────────────────────────────────
podman pod create \
  --name webapp \
  -p 8080:80 \
  -p 8000:8000

# ── Container: webapp-nginx ─────────────────────────────────────────────
podman create \
  --pod webapp \
  --name webapp-nginx \
  --restart always \
  -v webapp-nginx:/etc/nginx/conf.d:Z \
  docker.io/nginx:stable

# ── Container: webapp-app ─────────────────────────────────────────────
podman create \
  --pod webapp \
  --name webapp-app \
  --restart always \
  -e DATABASE_URL='postgresql://appuser:IR6X4_ensgm5EclNYQ9kkQ@127.0.0.1:5432/appdb' \
  -v webapp-app:/app:Z \
  --entrypoint python \
  docker.io/python:3.12-slim \
  -m http.server 8000 --directory /app

# ── Container: webapp-postgres ─────────────────────────────────────────────
podman create \
  --pod webapp \
  --name webapp-postgres \
  --restart always \
  -e POSTGRES_USER='appuser' \
  -e POSTGRES_PASSWORD='IR6X4_ensgm5EclNYQ9kkQ' \
  -e POSTGRES_DB='appdb' \
  -v webapp-db:/var/lib/postgresql/data:Z \
  --user 999:999 \
  docker.io/postgres:16

# ── Start pod ──────────────────────────────────────────────────────
podman pod start webapp

# ── Stop & clean up ───────────────────────────────────────────────
# podman pod stop webapp
# podman pod rm webapp