# I cannot deploy docker-taiga-back-1 via docker compose

**URL:** <https://community.taiga.io/t/i-cannot-deploy-docker-taiga-back-1-via-docker-compose/1961>\
**Category:** Self hosted Taiga\
**Tags:** docker\
**Created:** [October 9, 2023, 11:59am UTC](https://community.taiga.io/t/i-cannot-deploy-docker-taiga-back-1-via-docker-compose/1961 "2023-10-09T11:59:47Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![tdelatorre](https://dub1.discourse-cdn.com/flex017/user_avatar/community.taiga.io/tdelatorre/32/519_2.png) [@tdelatorre](https://community.taiga.io/u/tdelatorre)\
**Post date:** [October 13, 2023, 6:34am UTC](https://community.taiga.io/t/i-cannot-deploy-docker-taiga-back-1-via-docker-compose/1961/4 "2023-10-13T06:34:19Z")

</div>

Hi @atlet99

According to your logs it seems like a database connection problem:

```auto
  File "/opt/venv/lib/python3.11/site-packages/django/db/backends/postgresql/base.py", line 187, in get_new_connection
    connection = Database.connect(**conn_params)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/venv/lib/python3.11/site-packages/psycopg2/ __init__.py", line 122, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
django.db.utils.OperationalError: connection to server at "taiga-db" (172.24.0.3), port 5432 failed: FATAL: password authentication failed for user "taiga"

```

Check that the database configuration variables in your `.env` file have the correct values for the **taiga** database user (following [https://community.taiga.io/t/taiga-30min-setup/170#database-settings-7](https://community.taiga.io/t/taiga-30min-setup/170#database-settings-7))

If this is not your first time deploying Taiga and you were already using taiga-docker I recommend that you follow this [migration guide](https://docs.taiga.io/upgrades-docker-migrate.html) to use the new `.env` based deployment (Taiga version 6.6.0+)

I hope this helps.

Regards.

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