Everything you need to put an app live on Canadian infrastructure — from your first deploy to custom domains, databases, and what to do when a build fails. Can’t find an answer? Write us at hello@canner.ca — a human replies.

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Deploy your first app

Three ways to put an app live on Canner in under five minutes: drag and drop, GitHub, or the CLI.

Builds, previews & rollbacks

How builds run, what preview deploys are, how to roll back, and how free-tier sleep works.

Errors, logs & deploy history

Errors grouped by what would fix them and tied to the deploy that caused them, the 7-day request and app logs, what is kept and removed, alerts, and the MCP tools.

Frameworks & runtimes

Next.js

Deploy a Next.js app — SSR, API routes, and image optimization work out of the box.

Vite (React, Vue, Svelte)

Deploy a Vite single-page app. Canner builds it and serves the static bundle with SPA fallback.

Astro

Deploy Astro — static builds work as-is; server output needs the Node adapter.

Node servers & full-stack apps

Express, Fastify, Hono, and full-stack apps that serve their own client — including AI-tool exports.

Python (FastAPI, Flask, Streamlit, Gradio)

Deploy Python apps from requirements.txt or pyproject.toml. Streamlit and Gradio demos included.

Static sites

Plain HTML/CSS/JS — no package.json needed. Drag a folder or point at a repo.

Go, Ruby, PHP, Rust, Java & BoxLang

How Canner detects and runs the other supported runtimes, and which plans they need.

Guides

Environment variables & secrets

Set, bulk-import, and mark variables sensitive; how they reach your build and runtime.

Postgres databases

Provision Postgres databases (several per project on paid plans), schedule and restore backups, recover to a point in time, and follow or migrate from another server; a dedicated instance adds extensions, replication and tuning.

Point-in-time recovery

Turn on point-in-time recovery, choose a window, recover a database as of a moment into a new one, inspect it, swap it in, and copy the archive off-site.

Migrate to Canner Postgres

Move a Postgres database to Canner with a dump and restore, or follow the old server live with an inbound subscription; cutover checklist (sequences, extensions, roles) and rollback.

Passkeys for your app

Add passkey sign-in to your own app without building a user database. Canner Auth holds the credentials; your app verifies a signed token.

Custom domains & DNS

Point your domain at Canner, verify it, and get automatic HTTPS. Includes the www redirect.

Caching

Cache server-rendered responses; purge by tag or path, preview drafts, and stale-while-revalidate. Works with any CMS and a native Astro provider.

Scheduled jobs (cron webhooks)

Run a URL in your app on a cron schedule — no third-party cron service. Retries, timeouts, and run history included.

Scheduled SQL queries

Run SQL on a schedule against your project databases — reference any database you own by name, read and write it, no external ETL. Runs isolated in Montreal.

Data Workshop: columnar analytics

Upload CSV, Parquet, or JSON and query it with standard SQL in milliseconds — plus browse your project Postgres. No egress, data stays in Canada.

Object storage & files

Store and serve files from a private, Canadian-owned bucket per project — from the dashboard, or with your own S3-compatible credentials from your app's own runtime.

Cookieless traffic analytics

Page views, sessions, and referrers for your app — no cookies, no third-party scripts, session identity hashed server-side and processed in Canada.

Troubleshooting

Common build & deploy errors

What the most common failure messages mean and how to fix them — lockfiles, ports, health checks.

Documentation.