101 lines
2.8 KiB
Markdown
101 lines
2.8 KiB
Markdown
# Catalyst
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A lightweight instance registry for tracking self-hosted infrastructure. No backend, no framework — just a browser, a SQLite database compiled to WebAssembly, and a static file server.
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## Structure
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```
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index.html Entry point
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css/app.css Styles
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js/
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config.js Service definitions and seed data
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db.js Data layer
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ui.js Rendering, modals, notifications
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app.js Router
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```
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## Data layer
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All reads and writes go through five functions in `js/db.js`. This is the boundary that would be replaced when wiring Catalyst to a real backend — nothing else in the codebase touches data directly.
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### `getInstances(filters?)`
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Returns an array of instances, sorted by name. All filters are optional.
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```js
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getInstances()
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getInstances({ search: 'plex' })
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getInstances({ state: 'degraded' })
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getInstances({ stack: 'production' })
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getInstances({ search: 'home', state: 'deployed', stack: 'production' })
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```
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`search` matches against `name`, `vmid`, and `stack`.
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### `getInstance(vmid)`
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Returns a single instance by VMID, or `null` if not found.
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```js
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getInstance(137) // → { id, name, vmid, state, stack, ...services, createdAt, updatedAt }
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```
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### `getDistinctStacks()`
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Returns a sorted array of unique stack names present in the registry. Used to populate the stack filter dynamically.
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```js
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getDistinctStacks() // → ['development', 'production']
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```
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### `createInstance(data)`
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Inserts a new instance. Returns `{ ok: true }` on success or `{ ok: false, error }` on failure (e.g. duplicate VMID).
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```js
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createInstance({
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name: 'plex',
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vmid: 117,
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state: 'deployed', // 'deployed' | 'testing' | 'degraded'
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stack: 'production',
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tailscale_ip: '100.64.0.1',
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atlas: 1,
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argus: 1,
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semaphore: 0,
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patchmon: 1,
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tailscale: 1,
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andromeda: 0,
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hardware_acceleration: 1,
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})
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```
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### `updateInstance(id, data)`
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Updates an existing instance by internal `id`. Accepts the same shape as `createInstance`. Returns `{ ok: true }` or `{ ok: false, error }`.
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### `deleteInstance(id)`
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Deletes an instance by internal `id`. Only instances on the `development` stack can be deleted — this is enforced in the UI before `deleteInstance` is ever called.
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---
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## Instance shape
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| Field | Type | Notes |
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|---|---|---|
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| `id` | integer | Internal autoincrement ID |
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| `vmid` | integer | Unique. Used as the public identifier and in URLs (`/instance/137`) |
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| `name` | string | Display name |
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| `state` | string | `deployed`, `testing`, or `degraded` |
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| `stack` | string | `production` or `development` |
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| `tailscale_ip` | string | Optional |
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| `atlas` | 0 \| 1 | |
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| `argus` | 0 \| 1 | |
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| `semaphore` | 0 \| 1 | |
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| `patchmon` | 0 \| 1 | |
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| `tailscale` | 0 \| 1 | |
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| `andromeda` | 0 \| 1 | |
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| `hardware_acceleration` | 0 \| 1 | |
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| `createdAt` | ISO string | Set on insert |
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| `updatedAt` | ISO string | Updated on every write |
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