vitya
e2338b6fdd
- deleted .tasks/windows-host-fallback-backup-daily.md (MSSQL removed on decommission 2026-06-08) - recovery-architecture-snapshot.md: marked ИСТОРИЧЕСКАЯ ЗАПИСЬ; removed 3 broken [[wiki-links]] (cms-server-port-leak-fix, cms-admin-assets-root-folder-seed, webconfig-password-xml-escape) - snolla-recovery-vm.md: marked УДАЛЕНА 2026-06-08 - ruvds-iis-host.md: struck 2 resolved risks (imgproxy SPOF, LE renewal); cross-ref winacme - future-resilient-architecture-goals.md: dead task link → plain text - mssql-on-vds.md: frontmatter fix; Backup TODO section replaced with implemented block (Express COPY_ONLY, sqlcmd, bind-mount pattern) - vds-kzntsv.md: added MSSQL row to software stack table - log.md: update entries for lint + mssql backup implementation Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
110 lines
6.2 KiB
Markdown
110 lines
6.2 KiB
Markdown
---
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title: MSSQL on vds-kzntsv (Express 2022 Linux)
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type: concept
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tags: [vds, mssql, migration, ops]
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related: [[../entities/vds-kzntsv]], [[recovery-architecture-snapshot]], [[traefik-tcp-passthrough-vs-starttls]], [[db-tls-self-signed-via-traefik-raw-tcp]]
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updated: 2026-05-22
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---
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# MSSQL on vds-kzntsv
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Запущен 2026-05-22 как часть `mssql-vds-migration`. SPOF с windows-recovery-host снят для CMS DB park.
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## Architecture
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```
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IIS snolla site (web.config)
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→ mssql.kzntsv.site:1433 (LE/DNS A → 89.253.255.94)
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→ VDS traefik :1433 (TCP entrypoint, HostSNI(*))
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→ mssql container :1433 (self-signed TLS terminated по TDS)
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→ /var/opt/mssql/data/{5 prod DBs}
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```
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Stack: `/opt/stacks/databases/mssql/{docker-compose.yml,.env,data,backups}`. Networks `proxy` only.
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**Image:** `mcr.microsoft.com/mssql/server:2022-latest` (RTM-CU25, build 16.0.4255.1, on Ubuntu 22.04.5 LTS).
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**Edition:** Express (`MSSQL_PID=Express`) — production licensing OK, 10 GB/DB cap (max .mdf сейчас `stostayer` 968 MB → 10× запас).
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**Memory:** `MSSQL_MEMORY_LIMIT_MB=2048` env (Express auto-caps на 1410 в любом случае).
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**TLS:** self-signed cert, mssql generates automatically. Client connects with `TrustServerCertificate=True`. Traefik forwards raw TCP — TLS terminates at mssql.
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## Migration recipe (one-shot, executed 2026-05-22)
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Источник: `mcr.microsoft.com/mssql/server:2019-latest` Developer на windows-recovery-host (volume `mssql_mssql_data` 26.6 GB; real data ~2.4 GB; .ldf logs 12 GB inflated).
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```sql
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-- 1. Source: BACKUP DATABASE for each prod DB (5 total)
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BACKUP DATABASE [<db>] TO DISK='/var/opt/mssql/backups/<db>.bak'
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WITH COMPRESSION, COPY_ONLY, INIT, STATS=50;
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-- Compressed total: 486 MB (10× от .mdf size — built-in compression на UTF-16/varchar pads)
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```
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```bash
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# 2. Extract from container → scp → VDS bind
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docker cp mssql:/var/opt/mssql/backups/. C:/tmp/mssql-backups/
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scp C:/tmp/mssql-backups/*.bak vitya@vds.kzntsv.site:/tmp/mssql-bak-staging/
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ssh vitya@vds.kzntsv.site 'sudo mv /tmp/mssql-bak-staging/*.bak /opt/stacks/databases/mssql/backups/
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sudo chown 10001:0 /opt/stacks/databases/mssql/backups/*.bak'
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```
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```yaml
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# 3. compose + .env (см. /opt/stacks/databases/mssql/)
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# MSSQL_SA_PASSWORD из pass show mssql-vds/sa-password (32-char alnum, no special chars)
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```
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```yaml
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# 4. Traefik: добавить TCP entrypoint в /opt/stacks/traefik/data/traefik.yml
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entryPoints:
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mssql:
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address: ":1433"
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# + port 1433 в /opt/stacks/traefik/docker-compose.yml ports list
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# + ufw allow 1433/tcp
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# + sudo docker compose up -d (RECREATE, не restart — port mapping)
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```
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```sql
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-- 5. RESTORE per DB
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RESTORE DATABASE [<db>] FROM DISK='/var/opt/mssql/backups/<db>.bak' WITH REPLACE, STATS=50;
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-- 2019 → 2022 schema upgrade автоматический (versions 953→957). DBCC CHECKDB PHYSICAL_ONLY clean.
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```
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```sql
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-- 6. CRITICAL: server-level logins НЕ переезжают в .bak (sysadmin/master DB only).
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-- Создать manually + fix orphan users в каждой DB:
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CREATE LOGIN snolla WITH PASSWORD = '<from-source-web.config>', CHECK_POLICY = OFF;
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USE MoreThenCms;
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ALTER USER snolla WITH LOGIN = snolla;
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-- Repeat for каждой DB где web.config упоминает данного user'а.
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```
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## Gotchas
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1. **Logins vs users**: .bak восстанавливает DB-level users (с их role memberships + permissions), но НЕ server logins. Sites с `User Id=X` в conn-string ловят `Login failed for user 'X'` после restore, пока не выполнить `CREATE LOGIN` + `ALTER USER ... WITH LOGIN`.
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2. **Traefik recreate, не restart**: добавление port mapping в `docker-compose.yml` требует **recreate** контейнера (`docker compose up -d`), не `restart`. `restart` оставит старые published ports.
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3. **PowerShell + `pass` (bash script)**: `pass show` в PowerShell возвращает NULL (PS не запускает bash-скрипты напрямую). Нужно `bash -c "pass show ..."` или literal. Симптом: `Login failed for user 'sa'` несмотря на правильный пароль на VDS.
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4. **`MSSQL_SA_PASSWORD` спец-символы**: rotation password generator должен excludeавать `+/=` (Base64) и shell-meta (`$`, `` ` ``, `"`, `'`, `\`). Иначе env-var passing через ssh heredoc или sed конструкторы ломаются. Пример безопасного: `[Convert]::ToBase64String($bytes) -replace '[+/=]','x'`.
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5. **MSSQL Linux user uid**: `mssql` user = uid 10001. Bind-mount должен быть `chown 10001:0` чтобы контейнер read/write. Parent dir owns `vitya:vitya` чтобы можно было редактировать compose без sudo.
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## Backup integration
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Реализовано 2026-06-11 в `/opt/stacks/backup/scripts/run.sh` (см. [[vds-backup-rsync-kreknin]]). Блок между Step 1 (DB dumps) и Step 2 (rsync):
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```bash
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source /opt/stacks/databases/mssql/.env # injects MSSQL_SA_PASSWORD
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for DB in MoreThenCms StayerCalculator StayerPrice TireService stostayer; do
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docker exec mssql /opt/mssql-tools18/bin/sqlcmd \
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-S localhost -U sa -P "$MSSQL_SA_PASSWORD" -C -b \
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-Q "BACKUP DATABASE [$DB] TO DISK='/var/opt/mssql/backups/${DB}.bak' WITH COPY_ONLY, INIT"
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mv /opt/stacks/databases/mssql/backups/${DB}.bak "$DUMP_DIR/mssql-${DB}.bak"
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done
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unset MSSQL_SA_PASSWORD
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```
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**Gotcha:** Express Edition не поддерживает `WITH COMPRESSION` — только `COPY_ONLY, INIT`. .bak файлы создаются в bind-mount `/var/opt/mssql/backups/` (uid 10001:10001); root mv их в `$DUMP_DIR` для rsync на kreknin. 5 DBs ~ 486 MB uncompressed. sqlcmd path: `/opt/mssql-tools18/bin/sqlcmd`.
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## Rollback recipe
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1. Revert IIS web.config'ы (см. `.bak-pre-vds-cutover-20260522` файлы).
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2. `iisreset /restart` (или ждать auto-recycle ~30 sec).
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3. Убедиться windows-host MSSQL контейнер всё ещё running (acceptance 48ч uptime до decommission).
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4. Если уже decommissioned: `docker start mssql` (volume сохранён ещё неделю по acceptance).
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