---
name: no-sudo-server-setup
description: Deploy redis, venv, systemd workarounds when lacking sudo.
tags: [deployment, sudo, redis, venv, workaround]
triggers:
  - "no sudo"
  - "cannot sudo"
  - "deploy without root"
  - "无sudo"
---

# No-Sudo Server Setup Patterns

When deploying on a server where you have a user account but no sudo/root access.

## Redis from Source (no `apt install`)

```bash
curl -sLO https://download.redis.io/releases/redis-7.2.5.tar.gz
tar xzf redis-7.2.5.tar.gz && cd redis-7.2.5
make -j$(nproc)
cp src/redis-server src/redis-cli ~/bin/
~/bin/redis-server --daemonize yes --port 6379 --logfile ~/logs/redis.log
```

## Python venv without `python3-venv` (Debian/Ubuntu)

```bash
pip3 install --user virtualenv
python3 -m virtualenv /path/to/venv
```

## pip Mirror (China)

```bash
mkdir -p ~/.pip
cat > ~/.pip/pip.conf << 'EOF'
[global]
index-url = https://pypi.tuna.tsinghua.edu.cn/simple
trusted-host = pypi.tuna.tsinghua.edu.cn
EOF
```

## Hostname Without `/etc/hosts`

When scripts reference `mysql -h db` but `db` doesn't resolve:
- Change config connection host from `db` to `127.0.0.1`
- Or get someone with sudo to `echo '127.0.0.1 db' >> /etc/hosts`

## systemd Without sudo

- Use `start.sh`/`stop.sh` scripts instead of systemd
- Auto-restart: `@reboot bash /path/to/start.sh` in crontab
- Crash watchdog: `*/1 * * * * pgrep -f app.py || bash start.sh`

## xls2ddl Warning Filtering

xls2ddl outputs openpyxl warnings mixed with SQL — filter before piping to mysql:

```bash
xls2ddl mysql models/ > /tmp/ddl.sql
grep -v 'UserWarning\|warn(msg)\|openpyxl' /tmp/ddl.sql | mysql -u user -ppass -h 127.0.0.1 db
```

## Dummy Env Vars for Optional Services

```bash
export BAIDU_SMS_ACCESS_KEY=dummy
export BAIDU_SMS_ACCESS_KEY_SECRET=dummy
export BAIDU_SMS_HOST=dummy
export BAIDU_SMS_SIGNATURE_ID=dummy
```

## bricks First Build

```bash
mkdir -p pkgs/bricks/dist/{css,i18n,imgs,3parties,examples,docs}
cd pkgs/bricks/bricks && bash build.sh
ln -sf ../pkgs/bricks/dist wwwroot/bricks
```

## MariaDB localhost Auth

MariaDB uses `unix_socket` for `user@localhost`. Creating `user@'%'` isn't enough:

```sql
CREATE USER 'test'@'localhost' IDENTIFIED BY 'test123';
CREATE USER 'test'@'127.0.0.1' IDENTIFIED BY 'test123';
GRANT ALL ON db.* TO 'test'@'localhost';
GRANT ALL ON db.* TO 'test'@'127.0.0.1';
```

## DB Password AES Encryption (Sage/ahserver)

```python
from appPublic.aes import aes_encode_b64
enc = aes_encode_b64(password_key, plaintext_password)
```

## SSH Rate Limiting

Symptom: first SSH works, subsequent calls fail `kex_exchange_identification`.
Fix: `sleep 12` between calls, or batch into one command.

## Pitfall: SSH 255 from Background Commands

`ssh host "cmd1 && cmd2 &"` returns exit 255 — the `&` or `pkill` kills SSH's own shell.
Split into single-purpose calls, never use shell background `&` in SSH commands.