From e1e2593fa59c72f14fcbba44f018b4e08e7e8551 Mon Sep 17 00:00:00 2001
From: Kirill <gluhov@bmstu.ru>
Date: Mon, 5 May 2025 13:44:59 +0300
Subject: [PATCH] demo for compose

---
 .gitignore           |   2 ++
 docker-compose.yaml  |  28 +++++++++++++++++++++++++
 src/Dockerfile       |   8 ++++++++
 src/main.py          |  48 +++++++++++++++++++++++++++++++++++++++++++
 src/requirements.txt | Bin 0 -> 304 bytes
 5 files changed, 86 insertions(+)
 create mode 100644 docker-compose.yaml
 create mode 100644 src/Dockerfile
 create mode 100644 src/main.py
 create mode 100644 src/requirements.txt

diff --git a/.gitignore b/.gitignore
index 0dbf2f2..28f4438 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+.idea
+postgres_data
 # ---> Python
 # Byte-compiled / optimized / DLL files
 __pycache__/
diff --git a/docker-compose.yaml b/docker-compose.yaml
new file mode 100644
index 0000000..13da89c
--- /dev/null
+++ b/docker-compose.yaml
@@ -0,0 +1,28 @@
+services:
+  db:
+    image: postgres:15-alpine
+    env_file:
+      - ./.env
+    ports:
+      - "5432:5432"
+    volumes:
+      - ./postgres_data:/var/lib/postgresql/data
+    container_name: postgres_db
+    restart: always
+    healthcheck:
+      test: [ "CMD-SHELL", "pg_isready", "-d", "db_prod" ]
+      interval: 30s
+      timeout: 60s
+      retries: 5
+      start_period: 80s
+  web:
+    ports:
+      - "80:8086"
+    build:
+      context: ./src
+    env_file:
+      - ./.env
+    depends_on:
+      db:
+        condition: service_healthy
+    restart: always
\ No newline at end of file
diff --git a/src/Dockerfile b/src/Dockerfile
new file mode 100644
index 0000000..a5804e9
--- /dev/null
+++ b/src/Dockerfile
@@ -0,0 +1,8 @@
+FROM python:3.12
+
+WORKDIR /app
+
+COPY main.py .
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+CMD ["python3", "main.py"]
\ No newline at end of file
diff --git a/src/main.py b/src/main.py
new file mode 100644
index 0000000..6235426
--- /dev/null
+++ b/src/main.py
@@ -0,0 +1,48 @@
+import os
+
+import psycopg2
+from flask import Flask
+
+# Подключение к базе данных postgres
+
+conn = psycopg2.connect(
+    dbname=os.getenv("POSTGRES_DB"),
+    user=os.getenv("POSTGRES_USER"),
+    password=os.getenv("POSTGRES_PASSWORD"),
+    host="db",
+    port="5432"
+)
+
+app = Flask(__name__)
+
+
+@app.route("/")
+def hello_world():
+    return """<p>Hello, World!</p><br><a href="/db">ТЫК</a>"""
+
+
+@app.route("/db")
+def db():
+    cur = conn.cursor()
+    cur.execute('''UPDATE mytable SET visitors_count = visitors_count + 1''')
+    conn.commit()
+    cur.execute("SELECT visitors_count from mytable")
+    result = cur.fetchone()
+    value = -1
+    if result:
+        value = result[0]
+    return f"""DB:{value}<br><a href="/">Обратно</a>"""
+
+
+if __name__ == "__main__":
+    cur = conn.cursor()
+    cur.execute('''CREATE TABLE IF NOT EXISTS mytable (
+    id SERIAL PRIMARY KEY,
+    visitors_count INTEGER NOT NULL DEFAULT 0)''')
+
+    cur.execute('''INSERT INTO mytable (id, visitors_count)
+    VALUES (1, 0)
+    ON CONFLICT (id) DO NOTHING''')
+    conn.commit()
+
+    app.run(host="0.0.0.0", port=8086)
diff --git a/src/requirements.txt b/src/requirements.txt
new file mode 100644
index 0000000000000000000000000000000000000000..12cdcc0075c85e257de6f2345364be800f0c3321
GIT binary patch
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z?h)9Li=$E%l{?$;Mx`@4`NWJp`y&$q1|0al(n}svX&Yyo40L|;8c$V|e3YO|^OSS6
QEjoPo4^&Mqy0|cxKc}}Vz5oCK

literal 0
HcmV?d00001