Deployment demo

An interactive overview of steps that take source code to a running container. This page is a demo only.

GitHub Actions - Live Status

Reálný stav CI/CD pipeline

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Deployment simulator

Speed

Simulovaný terminál:

# waiting for start...

Pipeline steps

Checkout: získání zdrojového kódu z Git repozitáře
Install dependencies: pip install -r requirements.txt
Run tests: unit & smoke tests
Build image: docker build -t devops-web:latest .
Push image (opc.): docker push registry.example/your-image:tag
Deploy: docker-compose up -d nebo Kubernetes manifesty / Helm
Verify: health checks & smoke tests, monitoring

Poznámka: pro bezpečnost a reprodukovatelnost se v reálném provozu pipeline spouští v CI/CD systému (GitHub Actions, GitLab CI, Jenkins) a serveru se neposílají příkazy ručně.

Practical commands (example)

# Instalace závislostí
pip install -r requirements.txt

# Sestavení Docker image
docker build -t devops-web:latest .

# Spuštění lokálně pomocí docker-compose
docker-compose up --build -d

# Zobrazit běžící kontejnery
docker ps

# Prohlédnout logy (last 200 řádků)
tail -n 200 log/app.log

Recent application logs

2026-07-13 11:01:54,892 INFO app: Spam blocked by honeypot from 198.12.69.94 (hp=+1-047-432-8678)
2026-07-14 07:54:35,278 INFO app: Logging initialized. Log file: /app/log/app.log
2026-07-14 23:07:04,480 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-07-27 00:59:25,696 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-08-14 07:02:28,780 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-14 18:27:42,293 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-15 06:54:56,105 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-15 20:29:52,913 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-15 21:20:21,540 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-15 21:48:31,953 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-15 21:49:02,566 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-15 21:49:03,674 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-16 00:49:40,876 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-08-19 12:07:43,502 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-08-28 01:14:55,780 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-28 16:45:12,915 INFO app: Logging initialized. Log file: /app/log/app.log
2026-08-29 02:16:27,747 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-09-19 13:20:07,293 INFO app: Logging initialized. Log file: /app/log/app.log
2026-09-20 07:59:53,236 INFO app: Spam blocked by honeypot from 155.103.69.143 (hp=+1-124-547-3543)
2026-09-21 02:18:12,159 INFO app: Logging initialized. Log file: /app/log/app.log

Build artifact files

Dockerfile

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Show content

## Multi-stage Dockerfile: build dependencies then produce a slim runtime image
FROM python:3.11-slim AS builder
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
WORKDIR /app

# Install build deps for compiling any wheels
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    gcc \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt /app/requirements.txt
RUN pip install --no-cache-dir --prefix=/install -r /app/requirements.txt

# Copy source
COPY . /app

FROM python:3.11-slim
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
WORKDIR /app

# Copy installed packages and app from builder
COPY --from=builder /install /usr/local
COPY --from=builder /app /app

# Ensure log dir exists
RUN mkdir -p /app/log

EXPOSE 5001

# Use Gunicorn for production
CMD ["gunicorn", "-b", "0.0.0.0:5001", "app:app", "--workers=2"]

docker-compose.yml

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Show content

services:
  web:
    build: .
    image: devops-web:latest
    ports:
      - "8000:5001" # host:container (app listens on 5001 inside image)
    env_file:
      - .env
    environment:
      - PORT=5001
      - SECRET_KEY=${SECRET_KEY}
      - ADMIN_USER=${ADMIN_USER}
      - ADMIN_PASS=${ADMIN_PASS}
      - SMTP_HOST=${SMTP_HOST}
      - SMTP_PORT=${SMTP_PORT}
      - SMTP_USER=${SMTP_USER}
      - SMTP_PASS=${SMTP_PASS}
      - EMAIL_TO=${EMAIL_TO}
    volumes:
      - ./data:/app/data
      - ./log:/app/log
    restart: unless-stopped

volumes:
  data:
  log:

README_DOCKER.md

2026-01-25T23:12:17 — exists

Show content

Docker quick start

Build image locally for MacOS:

```bash
cd /path/to/project
docker build -t devops-web:latest .

```

Build image for AMD64 and push to docker.hub

```bash
docker buildx build --platform linux/amd64 -t jartas/devops-web:linux-amd64 --push .
```

Run container:

```bash
docker run --rm -p 5001:5001 --name devops-web devops-web:latest
```

Or with docker-compose:

```bash
docker-compose up --build
```

Notes:
- App listens on port 5001 by default (you can override with `PORT` env).
- Logs are written to `log/app.log` inside the container; we also expose logs through container stdout.
- For production consider running behind a WSGI server (gunicorn) and using multi-stage builds / smaller base image.
 - To enable contact form email sending via SMTP (Office365), set the following environment variables in your container or host:
	 - SMTP_HOST (e.g. smtp.office365.com)
	 - SMTP_PORT (e.g. 587)
	 - SMTP_USER (your SMTP username / email)
	 - SMTP_PASS (SMTP password)
	 - EMAIL_TO (destination address for incoming leads)

 Example docker-compose snippet to set env:

 ```yaml
 services:
	 web:
		 build: .
		 environment:
			 - SMTP_HOST=smtp.office365.com
			 - SMTP_PORT=587
			 - SMTP_USER=you@example.com
			 - SMTP_PASS=${SMTP_PASS}
			 - EMAIL_TO=you@example.com
 ```
docker

requirements.txt

2026-01-25T23:12:17 — exists

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Flask==2.3.3
requests==2.31.0
gunicorn==20.1.0
Flask-Limiter==2.8.1
SQLAlchemy==2.0.20

Security

Tato stránka pouze čte lokální soubory a logy. Nikdy na serveru nespouští shell příkazy ani nezveřejňuje citlivé tajné hodnoty.

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