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

2026-02-10 23:08:40,080 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-12 18:34:47,889 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-12 18:35:08,655 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-14 02:46:20,559 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-14 02:46:59,989 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-16 21:50:08,174 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-16 22:02:58,101 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-17 09:43:29,201 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-19 20:32:56,238 INFO app: Admin logged in from 78.80.37.222
2026-02-20 04:02:54,683 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-20 10:33:14,220 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-20 15:42:01,281 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-20 15:42:21,559 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-21 18:34:12,099 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-21 19:01:30,070 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-21 19:02:01,404 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-21 19:02:03,165 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-21 20:19:43,114 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-22 20:07:28,299 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-23 04:04:03,169 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-23 17:23:11,958 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-23 22:52:26,670 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-24 18:25:48,180 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-26 08:56:23,310 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-26 08:56:23,311 INFO app: Logging initialized. Log file: /app/log/app.log
2026-02-26 08:56:54,925 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-01 02:35:36,873 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-02 02:57:56,972 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-05 13:50:11,442 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-05 13:50:43,242 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-06 02:38:41,011 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-06 02:38:41,013 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-07 15:56:39,498 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-07 15:56:59,641 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-07 15:57:32,909 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-08 11:19:30,243 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-08 11:19:42,625 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-08 11:59:49,938 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-08 12:00:02,275 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-10 07:56:58,216 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-10 13:19:58,045 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-12 16:22:44,043 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-12 16:22:44,784 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-12 16:23:15,810 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-13 00:52:53,527 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-13 05:30:37,077 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-13 05:30:41,499 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-13 05:37:19,498 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-14 01:52:36,756 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-14 01:54:36,858 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-15 02:55:25,523 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-16 03:51:31,510 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-16 03:53:47,703 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-17 17:47:26,549 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-17 17:49:22,843 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-19 07:47:45,260 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-20 05:51:48,535 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-23 03:54:20,375 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-27 12:08:40,009 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-27 12:08:40,008 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-27 12:09:13,194 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-27 12:09:13,193 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-27 12:09:46,570 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-03-27 12:10:19,268 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-27 12:10:19,354 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-28 05:47:16,626 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-28 15:31:06,400 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-29 03:51:11,223 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-29 03:52:48,326 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-29 19:08:20,026 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-03-29 19:08:51,597 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-30 12:31:21,043 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-30 12:31:57,383 INFO app: Logging initialized. Log file: /app/log/app.log
2026-03-30 19:03:15,553 INFO app: Admin logged in from 78.80.37.222
2026-04-02 03:52:05,043 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-02 03:53:01,892 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-05 16:52:52,712 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-05 16:53:29,496 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-06 05:12:17,042 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-04-06 05:12:48,686 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-06 12:23:06,269 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-07 12:50:42,940 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-08 16:26:45,735 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-09 04:11:01,650 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-09 05:45:02,896 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-09 19:01:51,758 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-09 19:03:51,634 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-11 23:18:43,110 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-12 04:27:14,889 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-12 08:36:18,419 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-13 12:01:22,277 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-13 15:38:01,480 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-13 15:47:44,482 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-13 15:49:18,797 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-13 15:53:30,572 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-13 16:00:45,534 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-14 04:28:33,153 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-14 15:45:39,101 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-15 12:51:52,307 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-15 13:13:15,923 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-15 19:49:42,852 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-15 19:52:08,011 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-15 20:28:38,067 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-16 05:03:55,177 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-16 16:04:54,813 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-16 20:18:08,260 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-17 00:11:29,866 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-17 05:03:54,119 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-17 13:34:14,868 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-18 10:16:06,121 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-04-18 23:22:40,512 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-04-18 23:23:11,797 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-19 01:18:51,258 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-04-19 08:39:09,306 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-19 16:08:36,553 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-20 23:42:05,848 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-21 06:08:34,764 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-21 09:06:19,845 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-21 19:37:05,767 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-22 20:01:33,932 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-22 20:02:27,630 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-23 08:08:54,565 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-04-24 00:12:44,047 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-24 00:12:47,340 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-25 00:24:03,979 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-04-26 23:59:05,527 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-27 00:18:20,279 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-04-27 19:28:12,292 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-27 19:28:16,622 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-27 20:23:35,230 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-28 01:02:25,815 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-28 20:01:48,534 INFO app: Logging initialized. Log file: /app/log/app.log
2026-04-29 05:51:03,146 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-05-03 08:10:14,340 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-05-04 05:22:25,391 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-04 05:22:27,580 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-04 08:00:13,011 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-05-06 05:25:39,001 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-07 04:48:44,440 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-07 11:29:31,951 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-09 06:55:03,175 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-05-16 03:33:33,621 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-05-18 03:10:58,300 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-19 06:53:48,558 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-05-20 07:54:12,501 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-22 02:00:12,231 INFO app: Logging initialized. Log file: /app/log/app.log
2026-05-22 12:49:08,097 INFO app: Logging initialized. Log file: /app/log/app.log
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2026-05-23 20:41:16,412 INFO app: Logging initialized. Log file: /app/log/app.log

Build artifact files

Dockerfile

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## 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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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

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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

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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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