Stack Sizer
Size a self-hosted stack from official sources.
Load and options
Vaultwarden
v1.0.0Load
Up to 50 users in a small business, organizations and collections, about 25,000 items, browser extensions online all day, up to 5 GiB of attachments, SQLite.
Options
No options change this app's resources.
Recommended resources
App requirements + system baseline + safety headroom. Nothing else is added, and nothing is rounded to a machine size.
vCPU 0.72, RAM 2.1 GiB, Disk 15.64 GiB
vCPU0.72
RAM2.1GiB
Disk15.64GiB
Breakdown
| Line | From | vCPU | RAM (GiB) | Disk (GiB) | Sources |
|---|---|---|---|---|---|
| Vaultwarden | Vaultwarden · Medium load | 0.5 | 0.5 | 5.5 | 1234567 |
| System baseline | Operating system, Container runtime (Docker Engine, containerd), System logs (journald), plus logs for 1 containers | 0.1 | 1.25 | 8.1 | 8910111213 |
| Safety headroom | vCPU 20%, RAM 20%, disk 15% of apps + baseline | 0.12 | 0.35 | 2.04 | 149151216 |
| Recommended total | 0.72 | 2.1 | 15.64 |
Sources
- .env.template at 1.37.4: DOMAIN, SIGNUPS_ALLOWED (true), ADMIN_TOKEN (Argon2 PHC), IP_HEADER (X-Real-IP), IP_HEADER_TRUSTED_PROXIES (local), PASSWORD_ITERATIONS 600000, DATABASE_MAX_CONNS 10 (Vaultwarden, read 14 Oct 2026)
- Vaultwarden wiki: Which container image to use (multi-arch image, tested on Raspberry Pi Zero W, Pi 1, Pi 3, Pi 4 and Pi 5) (Vaultwarden, read 14 Oct 2026)
- Vaultwarden wiki: Home (unofficial Bitwarden server in Rust, for deployments where the official resource-heavy service is undesirable) (Vaultwarden, read 14 Oct 2026)
- Vaultwarden wiki: Enabling WebSocket notifications (on the main HTTP port since 1.29/1.31; mobile apps use push instead) (Vaultwarden, read 14 Oct 2026)
- Docker Hub tag vaultwarden/server:1.37.4 (linux/amd64): 90,367,076 B compressed; 5 layers decompressed and counted: 303,042,560 B (Vaultwarden, read 14 Oct 2026)
- Docker: containerd image store is the default on fresh Engine 29+ installs and keeps images compressed and uncompressed (Vaultwarden, read 14 Oct 2026)
- Vaultwarden wiki: Backing up your vault (db.sqlite3 via sqlite3 .backup or /vaultwarden backup, attachments, sends, config.json, rsa_key*, icon_cache; restore with the -wal file removed) (Vaultwarden, read 14 Oct 2026)
- Ubuntu Server: System requirements (Sizing policy, read 10 Oct 2026)
- Google Kubernetes Engine: About GKE node sizing (Sizing policy, read 10 Oct 2026)
- ANAROQ measurement: dockerd and containerd at rest (Ubuntu 24.04, Docker 29.8.2) (Sizing policy, read 10 Oct 2026)
- Docker Community Forums: Docker resource usage & overhead (Sizing policy, read 10 Oct 2026)
- journald.conf(5), Ubuntu Manpages (Sizing policy, read 10 Oct 2026)
- Docker Docs: Local file logging driver (Sizing policy, read 10 Oct 2026)
- AWS Compute Optimizer: Rightsizing recommendation preferences (Sizing policy, read 10 Oct 2026)
- Kubernetes: Node-pressure Eviction (Sizing policy, read 10 Oct 2026)
- mke2fs(8), Ubuntu Manpages (Sizing policy, read 10 Oct 2026)
Basis
- Catalog release
- 2026.10.10
- Sizing policy
- 2026.10.0
- Profile Vaultwarden
- 1.0.0
Deployment Spec
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A short lowercase image id, for example ubuntu-24.04.