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[GH-ISSUE #482] How can i set Dynamic Variable Docker #294

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opened 2026-02-27 15:58:08 +03:00 by kerem · 6 comments
kerem commented 2026-02-27 15:58:08 +03:00
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Originally created by @anhnvme on GitHub (Dec 23, 2021).
Original GitHub issue: https://github.com/retspen/webvirtcloud/issues/482

Hello,

I want to set postgres information as variables for Docker images.
What should I edit for settings.py ?

i'm tried with code

from pathlib import Path
import os

...

DATABASES = {
    "default": {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': os.environ['POSTGRES_DB'],
        'USER': os.environ['POSTGRES_USER'],
        'PASSWORD': os.environ['POSTGRES_PASSWORD'],
        'HOST': 'localhost',
        'PORT': '5432',
    }
}

docker command

docker run --name postgres --net=host -e POSTGRES_USER=user -e POSTGRES_PASSWORD=mysecretpassword -e POSTGRES_DB=database #postgres
docker run --name webcloud --net=host -e POSTGRES_USER=user -e POSTGRES_PASSWORD=mysecretpassword -e POSTGRES_DB=database #webvircloud

then I'm exec to webvircloud docker, run

cd /srv/webvirtcloud
source venv/bin/activate
python manage.py makemigrations
python manage.py migrate

It's migrate successs

root@cloud-webvirtcloud-694c79848d-ffmsj:/srv/webvirtcloud# source venv/bin/activate
(venv) root@cloud-webvirtcloud-694c79848d-ffmsj:/srv/webvirtcloud# python manage.py makemigrations
Migrations for 'accounts':
  accounts/migrations/0006_auto_20211223_0453.py
    - Alter field id on userattributes
    - Alter field id on userinstance
    - Alter field id on usersshkey
Migrations for 'appsettings':
  appsettings/migrations/0006_alter_appsettings_id.py
    - Alter field id on appsettings
Migrations for 'computes':
  computes/migrations/0004_alter_compute_id.py
    - Alter field id on compute
Migrations for 'instances':
  instances/migrations/0010_auto_20211223_0453.py
    - Alter field id on flavor
    - Alter field id on instance
Migrations for 'logs':
  logs/migrations/0004_alter_logs_id.py
    - Alter field id on logs
Migrations for 'otp_totp':
  venv/lib/python3.8/site-packages/django_otp/plugins/otp_totp/migrations/0003_alter_totpdevice_id.py
    - Alter field id on totpdevice
(venv) root@cloud-webvirtcloud-694c79848d-ffmsj:/srv/webvirtcloud# python manage.py migrate
Operations to perform:
  Apply all migrations: accounts, admin, appsettings, auth, computes, contenttypes, instances, logs, otp_totp, sessions
Running migrations:
  Applying computes.0001_initial... OK
  Applying instances.0001_initial... OK
  Applying instances.0002_permissionset... OK
  Applying instances.0003_auto_20200615_0637... OK
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying accounts.0001_initial... OK
  Applying accounts.0002_permissionset... OK
  Applying accounts.0003_auto_20200604_0930... OK
  Applying accounts.0004_auto_20200615_0637... OK
  Applying accounts.0005_auto_20200616_1039... OK
  Applying accounts.0006_auto_20211223_0453... OK
  Applying contenttypes.0002_remove_content_type_name... OK
  Applying auth.0002_alter_permission_name_max_length... OK
  Applying auth.0003_alter_user_email_max_length... OK
  Applying auth.0004_alter_user_username_opts... OK
  Applying auth.0005_alter_user_last_login_null... OK
  Applying auth.0006_require_contenttypes_0002... OK
  Applying auth.0007_alter_validators_add_error_messages... OK
  Applying auth.0008_alter_user_username_max_length... OK
  Applying auth.0009_alter_user_last_name_max_length... OK
  Applying auth.0010_alter_group_name_max_length... OK
  Applying auth.0011_update_proxy_permissions... OK
  Applying admin.0001_initial... OK
  Applying admin.0002_auto_20200609_0830... OK
  Applying appsettings.0001_initial... OK
  Applying appsettings.0002_auto_20200527_1603... OK
  Applying appsettings.0003_auto_20200615_0637... OK
  Applying appsettings.0004_auto_20200716_0637... OK
  Applying appsettings.0005_auto_20200911_1233... OK
  Applying appsettings.0006_alter_appsettings_id... OK
  Applying auth.0012_alter_user_first_name_max_length... OK
  Applying computes.0002_auto_20200529_1320... OK
  Applying computes.0003_auto_20200615_0637... OK
  Applying computes.0004_alter_compute_id... OK
  Applying instances.0004_auto_20200618_0817... OK
  Applying instances.0005_flavor... OK
  Applying instances.0006_addFlavors... OK
  Applying instances.0007_auto_20200624_0821... OK
  Applying instances.0008_auto_20200708_0950... OK
  Applying instances.0009_auto_20200717_0524... OK
  Applying instances.0010_auto_20211223_0453... OK
  Applying logs.0001_initial... OK
  Applying logs.0002_auto_20200615_0637... OK
  Applying logs.0003_logs_host... OK
  Applying logs.0004_alter_logs_id... OK
  Applying otp_totp.0001_initial... OK
  Applying otp_totp.0002_auto_20190420_0723... OK
  Applying otp_totp.0003_alter_totpdevice_id... OK
  Applying sessions.0001_initial... OK
* Creating default admin user
! SHOW_PROFILE_EDIT_PASSWORD is found inside settings.py
* Applying permission can_change_password for all users
* Warning!!! Setting to False for all users
! Don`t forget to remove the option from settings.py
* Migrating can_clone_instaces user attribute to permission
* Applying permission passwordless_console for all users

But while i'm check postgres database, it's empty

root@cloud-webvirtcloud-694c79848d-ffmsj:/# psql -U postgres database
psql (14.1 (Debian 14.1-1.pgdg110+1))
Type "help" for help.

database=# \dt
Did not find any relations.
Originally created by @anhnvme on GitHub (Dec 23, 2021). Original GitHub issue: https://github.com/retspen/webvirtcloud/issues/482 Hello, I want to set postgres information as variables for Docker images. What should I edit for `settings.py` ? i'm tried with code ``` from pathlib import Path import os ... DATABASES = { "default": { 'ENGINE': 'django.db.backends.postgresql_psycopg2', 'NAME': os.environ['POSTGRES_DB'], 'USER': os.environ['POSTGRES_USER'], 'PASSWORD': os.environ['POSTGRES_PASSWORD'], 'HOST': 'localhost', 'PORT': '5432', } } ``` docker command ``` docker run --name postgres --net=host -e POSTGRES_USER=user -e POSTGRES_PASSWORD=mysecretpassword -e POSTGRES_DB=database #postgres docker run --name webcloud --net=host -e POSTGRES_USER=user -e POSTGRES_PASSWORD=mysecretpassword -e POSTGRES_DB=database #webvircloud ``` then I'm exec to webvircloud docker, run ``` cd /srv/webvirtcloud source venv/bin/activate python manage.py makemigrations python manage.py migrate ``` It's migrate successs ``` root@cloud-webvirtcloud-694c79848d-ffmsj:/srv/webvirtcloud# source venv/bin/activate (venv) root@cloud-webvirtcloud-694c79848d-ffmsj:/srv/webvirtcloud# python manage.py makemigrations Migrations for 'accounts': accounts/migrations/0006_auto_20211223_0453.py - Alter field id on userattributes - Alter field id on userinstance - Alter field id on usersshkey Migrations for 'appsettings': appsettings/migrations/0006_alter_appsettings_id.py - Alter field id on appsettings Migrations for 'computes': computes/migrations/0004_alter_compute_id.py - Alter field id on compute Migrations for 'instances': instances/migrations/0010_auto_20211223_0453.py - Alter field id on flavor - Alter field id on instance Migrations for 'logs': logs/migrations/0004_alter_logs_id.py - Alter field id on logs Migrations for 'otp_totp': venv/lib/python3.8/site-packages/django_otp/plugins/otp_totp/migrations/0003_alter_totpdevice_id.py - Alter field id on totpdevice (venv) root@cloud-webvirtcloud-694c79848d-ffmsj:/srv/webvirtcloud# python manage.py migrate Operations to perform: Apply all migrations: accounts, admin, appsettings, auth, computes, contenttypes, instances, logs, otp_totp, sessions Running migrations: Applying computes.0001_initial... OK Applying instances.0001_initial... OK Applying instances.0002_permissionset... OK Applying instances.0003_auto_20200615_0637... OK Applying contenttypes.0001_initial... OK Applying auth.0001_initial... OK Applying accounts.0001_initial... OK Applying accounts.0002_permissionset... OK Applying accounts.0003_auto_20200604_0930... OK Applying accounts.0004_auto_20200615_0637... OK Applying accounts.0005_auto_20200616_1039... OK Applying accounts.0006_auto_20211223_0453... OK Applying contenttypes.0002_remove_content_type_name... OK Applying auth.0002_alter_permission_name_max_length... OK Applying auth.0003_alter_user_email_max_length... OK Applying auth.0004_alter_user_username_opts... OK Applying auth.0005_alter_user_last_login_null... OK Applying auth.0006_require_contenttypes_0002... OK Applying auth.0007_alter_validators_add_error_messages... OK Applying auth.0008_alter_user_username_max_length... OK Applying auth.0009_alter_user_last_name_max_length... OK Applying auth.0010_alter_group_name_max_length... OK Applying auth.0011_update_proxy_permissions... OK Applying admin.0001_initial... OK Applying admin.0002_auto_20200609_0830... OK Applying appsettings.0001_initial... OK Applying appsettings.0002_auto_20200527_1603... OK Applying appsettings.0003_auto_20200615_0637... OK Applying appsettings.0004_auto_20200716_0637... OK Applying appsettings.0005_auto_20200911_1233... OK Applying appsettings.0006_alter_appsettings_id... OK Applying auth.0012_alter_user_first_name_max_length... OK Applying computes.0002_auto_20200529_1320... OK Applying computes.0003_auto_20200615_0637... OK Applying computes.0004_alter_compute_id... OK Applying instances.0004_auto_20200618_0817... OK Applying instances.0005_flavor... OK Applying instances.0006_addFlavors... OK Applying instances.0007_auto_20200624_0821... OK Applying instances.0008_auto_20200708_0950... OK Applying instances.0009_auto_20200717_0524... OK Applying instances.0010_auto_20211223_0453... OK Applying logs.0001_initial... OK Applying logs.0002_auto_20200615_0637... OK Applying logs.0003_logs_host... OK Applying logs.0004_alter_logs_id... OK Applying otp_totp.0001_initial... OK Applying otp_totp.0002_auto_20190420_0723... OK Applying otp_totp.0003_alter_totpdevice_id... OK Applying sessions.0001_initial... OK * Creating default admin user ! SHOW_PROFILE_EDIT_PASSWORD is found inside settings.py * Applying permission can_change_password for all users * Warning!!! Setting to False for all users ! Don`t forget to remove the option from settings.py * Migrating can_clone_instaces user attribute to permission * Applying permission passwordless_console for all users ``` But while i'm check postgres database, it's empty ``` root@cloud-webvirtcloud-694c79848d-ffmsj:/# psql -U postgres database psql (14.1 (Debian 14.1-1.pgdg110+1)) Type "help" for help. database=# \dt Did not find any relations. ```
kerem closed this issue 2026-02-27 15:58:09 +03:00
kerem commented 2026-02-27 15:58:09 +03:00
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@catborise commented on GitHub (Dec 23, 2021):

did you install "psycopg2" package with pip?
add it to conf/requirements.txt
then install it again

<!-- gh-comment-id:1000157005 --> @catborise commented on GitHub (Dec 23, 2021): did you install "psycopg2" package with pip? add it to conf/requirements.txt then install it again
kerem commented 2026-02-27 15:58:09 +03:00
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@anhnvme commented on GitHub (Dec 23, 2021):

did you install "psycopg2" package with pip?
add it to conf/requirements.txt
then install it again

sure, i have done this step, if hard code database information, it's work correctly, just error when working via docker environment

<!-- gh-comment-id:1000170288 --> @anhnvme commented on GitHub (Dec 23, 2021): > did you install "psycopg2" package with pip? > add it to conf/requirements.txt > then install it again sure, i have done this step, if hard code database information, it's work correctly, just error when working via docker environment
kerem commented 2026-02-27 15:58:09 +03:00
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@catborise commented on GitHub (Dec 23, 2021):

os.environ['POSTGRES_DB'],
os.environ['POSTGRES_USER'],
os.environ['POSTGRES_PASSWORD'],

did you check these environment variables if they are accessible or not.

(run python command import os then print os.environs to see if they are accessible in docker)

<!-- gh-comment-id:1000247484 --> @catborise commented on GitHub (Dec 23, 2021): os.environ['POSTGRES_DB'], os.environ['POSTGRES_USER'], os.environ['POSTGRES_PASSWORD'], did you check these environment variables if they are accessible or not. (run python command import os then print os.environs to see if they are accessible in docker)
kerem commented 2026-02-27 15:58:09 +03:00
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@anhnvme commented on GitHub (Dec 24, 2021):

os.environ['POSTGRES_DB'], os.environ['POSTGRES_USER'], os.environ['POSTGRES_PASSWORD'],

did you check these environment variables if they are accessible or not.

(run python command import os then print os.environs to see if they are accessible in docker)

yes, i'm tested with that variable, i use print os.environ['POSTGRES_DB'] it's show variable fine at /var/log/webvirtcloud.log

<!-- gh-comment-id:1000603993 --> @anhnvme commented on GitHub (Dec 24, 2021): > os.environ['POSTGRES_DB'], os.environ['POSTGRES_USER'], os.environ['POSTGRES_PASSWORD'], > > did you check these environment variables if they are accessible or not. > > (run python command import os then print os.environs to see if they are accessible in docker) yes, i'm tested with that variable, i use `print os.environ['POSTGRES_DB']` it's show variable fine at `/var/log/webvirtcloud.log`
kerem commented 2026-02-27 15:58:09 +03:00
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@catborise commented on GitHub (Dec 24, 2021):

to use env variables may be you should look at django-environ package:
https://pypi.org/project/django-environ-docker/

django has different style for environment variables usages.

<!-- gh-comment-id:1000658565 --> @catborise commented on GitHub (Dec 24, 2021): to use env variables may be you should look at django-environ package: https://pypi.org/project/django-environ-docker/ django has different style for environment variables usages.
kerem commented 2026-02-27 15:58:09 +03:00
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@anhnvme commented on GitHub (Dec 24, 2021):

to use env variables may be you should look at django-environ package:

thank you

<!-- gh-comment-id:1000674254 --> @anhnvme commented on GitHub (Dec 24, 2021): > to use env variables may be you should look at django-environ package: thank you
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