diff --git a/authentication/.env b/authentication/.env
new file mode 100644
index 0000000..1ee35a6
--- /dev/null
+++ b/authentication/.env
@@ -0,0 +1,3 @@
+POSTGRES_USER=appuser
+POSTGRES_PASSWORD=testpwd
+POSTGRES_DB=jcloud-authentification-service-db
\ No newline at end of file
diff --git a/authentication/Dockerfile b/authentication/Dockerfile
new file mode 100644
index 0000000..eaee6d4
--- /dev/null
+++ b/authentication/Dockerfile
@@ -0,0 +1,7 @@
+FROM python:3.13-slim
+WORKDIR /app
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+EXPOSE 1234
+CMD ["python3", "main.py"]
\ No newline at end of file
diff --git a/authentication/Makefile b/authentication/Makefile
new file mode 100644
index 0000000..55bc8bc
--- /dev/null
+++ b/authentication/Makefile
@@ -0,0 +1,25 @@
+build:
+	podman-compose build
+
+reload:
+	podman rm authentication_app_1
+	podman rm authentication_db_1
+	podman rm authentication_migration_1
+
+up:
+	podman-compose up --build
+
+down:
+	podman-compose down
+
+restart:
+	make down up
+
+migrate:
+	cp ../../../server/data/users/auth_data/basis_data/data.db database-migration/data.db
+# 	make reload
+# 	podman-compose -f docker-compose.yml -f docker-compose.migration.yml up --build
+	podman-compose -f docker-compose.migration.yml up --build
+
+migrate-test:
+	podman-compose -f docker-compose.migration.yml up --build
\ No newline at end of file
diff --git a/authentication/__pycache__/main.cpython-313.pyc b/authentication/__pycache__/main.cpython-313.pyc
new file mode 100644
index 0000000..05037b8
Binary files /dev/null and b/authentication/__pycache__/main.cpython-313.pyc differ
diff --git a/authentication/database-migration/Dockerfile b/authentication/database-migration/Dockerfile
new file mode 100644
index 0000000..0d7072a
--- /dev/null
+++ b/authentication/database-migration/Dockerfile
@@ -0,0 +1,6 @@
+FROM python:3.13-slim
+WORKDIR /app/
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+COPY . .
+CMD ["python3", "db_migration_test2.py"]
\ No newline at end of file
diff --git a/authentication/database-migration/data.db b/authentication/database-migration/data.db
new file mode 100644
index 0000000..c5ed391
Binary files /dev/null and b/authentication/database-migration/data.db differ
diff --git a/authentication/database-migration/db_migration.py b/authentication/database-migration/db_migration.py
new file mode 100644
index 0000000..142a165
--- /dev/null
+++ b/authentication/database-migration/db_migration.py
@@ -0,0 +1,38 @@
+print('RUNNING!')
+
+import sqlite3
+import os
+import psycopg
+
+print(os.getcwd())
+print(os.listdir())
+
+with open('data.db', 'rb') as f:
+    data = f.read()
+    print(f'[DEBUG] Begin SQLite database')
+    print(data)
+    print(f'[DEBUG] End SQLite database')
+
+
+conn = psycopg.connect(
+    host = 'db',
+    port = 5432,
+    dbname = os.getenv('POSTGRES_DB'),
+    user = os.getenv('POSTGRES_USER'),
+    password = os.getenv('POSTGRES_PASSWORD')
+)
+
+cursor = conn.cursor()
+
+with sqlite3.connect('data.db') as sqlite3_conn:
+    sqlite_cursor = sqlite3_conn.cursor()
+    sqlite_cursor.execute('SELECT COUNT(*) FROM data')
+    number_of_users = sqlite_cursor.fetchone()[0]
+    for user in range(1, number_of_users + 1):
+        print(f'Migrating user {user} ...')
+        sqlite_cursor.execute('SELECT (id, email, remail, phone, password) FROM data WHERE id = ?', (user,))
+        cursor.execute('INSERT INTO users (id, email, remail, phone, password) VALUES (%s, %s, %s, %s, %s)', tuple(sqlite_cursor.fetchone()))
+    cursor.execute('SELECT setval(pg_get_serial_sequence(\'users\', \'id\'), (SELECT MAX(id) FROM users), true)')
+    sqlite_cursor.close()
+
+print('[INFO] Migration completed')
\ No newline at end of file
diff --git a/authentication/database-migration/migration.py b/authentication/database-migration/migration.py
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/authentication/database-migration/migration.py
@@ -0,0 +1 @@
+
diff --git a/authentication/database-migration/requirements.txt b/authentication/database-migration/requirements.txt
new file mode 100644
index 0000000..0308453
--- /dev/null
+++ b/authentication/database-migration/requirements.txt
@@ -0,0 +1 @@
+psycopg
\ No newline at end of file
diff --git a/authentication/docker-compose.migration.yml b/authentication/docker-compose.migration.yml
new file mode 100644
index 0000000..60c2eab
--- /dev/null
+++ b/authentication/docker-compose.migration.yml
@@ -0,0 +1,21 @@
+version: "3.9"
+
+services:
+  db:
+    image: postgres:15
+    environment:
+      - DB_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}
+    env_file:
+      - .env
+    volumes:
+      - /srv/data/db/services/authentication:/var/lib/postgresql/data
+  migration:
+    build: database-migration
+    image: python:3.11-slim
+    environment:
+      - DB_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}
+    env_file:
+      - .env
+    depends_on:
+      - db
+    command: python3 db_migration_test1.py
\ No newline at end of file
diff --git a/authentication/docker-compose.yml b/authentication/docker-compose.yml
new file mode 100644
index 0000000..3dc542b
--- /dev/null
+++ b/authentication/docker-compose.yml
@@ -0,0 +1,27 @@
+version: "3.9"
+
+services:
+  app:
+    build: .
+    image: python:3.11-slim
+    working_dir: /app
+    volumes:
+      - .:/app
+    command: python3 main.py
+    ports:
+      - "1234:1234"
+    depends_on:
+      - db
+    environment:
+      - DB_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}
+    env_file:
+      - .env
+
+  db:
+    image: postgres:15
+    environment:
+      - DB_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}
+    env_file:
+      - .env
+    volumes:
+      - /srv/data/db/services/authentication:/var/lib/postgresql/data
\ No newline at end of file
diff --git a/authentication/main.py b/authentication/main.py
new file mode 100644
index 0000000..e9da286
--- /dev/null
+++ b/authentication/main.py
@@ -0,0 +1,85 @@
+from fastapi import FastAPI, Depends
+from psycopg_pool import AsyncConnectionPool
+import uvicorn
+import os
+from pydantic import BaseModel
+
+class Item(BaseModel):
+    name: str
+    description: str
+    reporter: str
+    priority: int
+    is_stupid: bool
+
+app = FastAPI()
+pool: AsyncConnectionPool
+
+
+@app.on_event('startup')
+async def on_startup():
+    global pool
+    pool = AsyncConnectionPool(
+        os.getenv('DB_URL'),
+        min_size=5,
+        max_size=40
+    )
+    await pool.open()
+    print('[INFO] Started connection pool')
+
+    async with pool.connection() as conn:
+        async with conn.cursor() as cursor:
+            await cursor.execute('CREATE TABLE IF NOT EXISTS users (id SERIAL PRIMARY KEY, email VARCHAR(64), remail VARCHAR(64), phone VARCHAR(16), password VARCHAR(128))')
+            print('[INFO] Database initialized')
+        await conn.commit()
+
+@app.on_event('shutdown')
+async def on_shutdown():
+    await pool.close()
+    print('[INFO] Closed connection pool')
+
+async def get_conn():
+    async with pool.connection() as conn:
+        yield conn
+
+@app.get('/')
+def read_root():
+    return {
+        'message': 'microservice is running'
+    }
+
+@app.post('/item')
+async def create_item(item: Item, conn = Depends(get_conn)):
+    async with conn.cursor() as cursor:
+        await cursor.execute('INSERT INTO items (name, description, reporter, priority, is_stupid) VALUES (%s, %s, %s, %s, %s) RETURNING *', (item.name, item.description, item.reporter, item.priority, item.is_stupid))
+        i = await cursor.fetchone()
+        return {'id': i[0], 'description' : i[1], 'reporter': i[2], 'priority': i[3], 'is_stupid': i[4]}
+
+@app.get('/item/{item_id}')
+async def read_item(item_id, conn = Depends(get_conn)):
+    async with conn.cursor() as cursor:
+        await cursor.execute('SELECT * FROM items WHERE id = %s', (item_id,))
+        i = await cursor.fetchone()
+        return {'id': i[0], 'name' : i[1], 'description': i[2], 'reporter': i[3], 'priority': i[4], 'is_stupid': i[5]}
+
+@app.get('/items')
+async def read_item(conn = Depends(get_conn)):
+    async with conn.cursor() as cursor:
+        await cursor.execute('SELECT * FROM items')
+        items = await cursor.fetchall()
+        return [{'id': i[0], 'description' : i[1], 'reporter': i[2], 'priority': i[3], 'is_stupid': i[4]} for i in items]
+
+@app.get('/datadir')
+async def get_datadir(conn = Depends(get_conn)):
+    async with conn.cursor() as cursor:
+        await cursor.execute('SHOW data_directory')
+        return {'res': await cursor.fetchall()}
+
+if __name__ == '__main__':
+    uvicorn.run(
+        'main:app',
+        host = '0.0.0.0',
+        port = 1234,
+        reload = True,
+        reload_dirs = ['/app'],
+        server_header = False
+    )
\ No newline at end of file
diff --git a/authentication/requirements.txt b/authentication/requirements.txt
new file mode 100644
index 0000000..c62b07c
--- /dev/null
+++ b/authentication/requirements.txt
@@ -0,0 +1,5 @@
+fastapi
+psycopg_pool
+uvicorn
+psycopg[binary]
+pydantic
\ No newline at end of file