# 2026.28 Infrastructure Changes

## Changes on Application environment

| **Change** | **Environment Variable Name** | **Application Default Value**<br>**(if env variable unset)** | **Example** | **Required** | **Applications** | **Short Description** |
|------------|-------------------------------|-------------------------------------------------------------|-------------|--------------|-------------------|-----------------------|
| Added      | `FEATURE_FLAG_SERVICE_ID`     | -                                                           | `assistants-core` | true         | - `ai-service-assistants-core`  | Identifies this service when evaluating per-service feature flags against `backend-service-configuration`.
| Added      | `CONFIGURATION_BACKEND_URL`   | -                                                           | `http://configuration-backend.<namespace>.svc.cluster.local:8095` | true         | - `ai-service-assistants-core`  | Internal URL used by assistants-core to reach `configuration-backend` (e.g. for feature-flag evaluation).
| Removed     | `FEATURE_FLAG_AGENTIC_TABLE_COMMENTS_UN_17606` | -                     | -           | -            | - `backend-service-configuration` | - Removed since feature is GA now<br>  <br>- Read more [here](https://docs.unique.ai/users/spaces/agentic-table)

## Required Backend Service Configuration database hook update

A new data migration hook has been added to the `backend-service-configuration`. The migration command in the migration hook in the default values of the service need to be adjusted.

```
// search for
cd /home/node/app/services/configuration-backend && pnpm exec prisma migrate deploy --config prisma.config.ts;
// replace with
cd /home/node/app/services/configuration-backend && pnpm exec prisma migrate deploy --config prisma.config.ts; cd /home/node/app/services/configuration-backend/dist; RUNNING_MODE=DATA_MIGRATION node --max-old-space-size=1000 /home/node/app/services/configuration-backend/dist/main.js;
```

The final result should look like this in the default values of `backend-service-configuration`:

```
hooks:
  migration:
    enabled: true
    command: |
      cd /home/node/app/services/configuration-backend && pnpm exec prisma migrate deploy --config prisma.config.ts; cd /home/node/app/services/configuration-backend/dist; RUNNING_MODE=DATA_MIGRATION node --max-old-space-size=1000 /home/node/app/services/configuration-backend/dist/main.js;
    resources:
      requests:
        cpu: 200m
        memory: 600Mi
      limits:
        memory: 1000Mi
        cpu: 500m
```