58 lines
2.1 KiB
Markdown
58 lines
2.1 KiB
Markdown
# Resetting the Kutt PostgreSQL password
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If you lost the stack env vars (e.g. after deleting the Portainer stack) and need to use the existing database with a new password, you have two options.
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**Default DB user/db name from compose:** `kutt` / `kutt` (or whatever you set in `DB_USER` / `DB_NAME`).
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**Data path on host:** `/mnt/config/docker/kutt/postgres` (from `docker-compose.portainer.yml`).
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---
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## Option A: Fresh start (delete all Kutt data)
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Use this if you **don’t need** existing links/users.
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1. On the host, remove the Postgres data directory:
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```bash
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sudo rm -rf /mnt/config/docker/kutt/postgres
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```
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2. In Portainer, (re-)create the stack and set env vars, including a new `DB_PASSWORD`.
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3. Deploy. Postgres will initialise a new database with the new password.
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---
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## Option B: Keep data, force-set a new password
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Use this if you **want to keep** existing Kutt data but don’t know the current password.
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**Stop the stack first** (so nothing is using the Postgres data volume).
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1. On the host, temporarily allow local connections without a password:
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```bash
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cd /mnt/config/docker/kutt/postgres
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cp pg_hba.conf pg_hba.conf.bak
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echo 'local all all trust' > pg_hba.conf
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echo 'host all all 127.0.0.1/32 trust' >> pg_hba.conf
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echo 'host all all ::1/128 trust' >> pg_hba.conf
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```
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2. Start a temporary Postgres container (it will use the modified `pg_hba.conf`):
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```bash
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docker run -d --name pg-reset \
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-v /mnt/config/docker/kutt/postgres:/var/lib/postgresql/data \
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postgres:16-alpine
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sleep 5
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```
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3. Set the new password (replace `kutt` if you use a different `DB_USER`, and set `YOUR_NEW_PASSWORD`):
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```bash
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docker exec pg-reset psql -U postgres -c "ALTER USER kutt PASSWORD 'YOUR_NEW_PASSWORD';"
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```
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4. Stop the temporary container and restore `pg_hba.conf`:
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```bash
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docker stop pg-reset && docker rm pg-reset
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cd /mnt/config/docker/kutt/postgres
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mv pg_hba.conf.bak pg_hba.conf
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```
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5. In Portainer, create/redeploy the stack and set `DB_PASSWORD` (and other env vars) to the same `YOUR_NEW_PASSWORD`.
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