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Deploying checked three things — the name is free, the server row exists, the directory isn't taken. Nothing asked whether the box could carry the thing, so a 2 GB app landed on a 1 GB VPS at full speed and the first sign of trouble was the OOM killer. Every piece was already here and unconnected: templates describe what they cost (`requirements: memory / storage`), servers report what they have (Server.total_memory / total_disk) and what they are using (the newest ServerMetrics sample). This is the join, answering in the shape a person asks it — does it fit, will it be tight, or can't we tell? Advisory on purpose. It reports; it never refuses. An estimate is an estimate, real usage depends on configuration and traffic, so the operator keeps the final say and "tight" is a sentence to read rather than a wall to argue with. A full server still returns valid:true, and a test asserts that so this cannot quietly become a gate. Three judgements worth stating: - The reserve is a floor-and-fraction pair (10% of the box, at least 256 MB RAM / 2 GB disk). A bare percentage is wrong at both ends: 10% of 1 GB is nothing, 10% of 64 GB is more than most apps need. - `unknown` outranks `ok`. No recent sample, or a template that declares nothing, says so — a confident wrong answer is worse than no answer. - Free memory comes from psutil's `available`, not `free`: cache and buffers are reclaimable, and counting them as used calls every healthy Linux box full. Catalog coverage goes from 52/106 to 106/106. The 54 estimates are each app's typical idle-to-light-use footprint, taken from the project's own documented minimum where it publishes one and rounded to the values the existing 52 already use — sonarqube 4 GB because that is its documented heap floor, immich 4 GB for the ML models, prometheus 20 GB because retention dominates, traefik 256 MB. Surfaced two ways: a capacity block alongside (never inside) `errors` on validate-install, and a read-only GET the deploy drawer can poll while the operator is still choosing a target, so the answer updates as they switch servers instead of waiting for a submit. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
74 lines
1.4 KiB
YAML
74 lines
1.4 KiB
YAML
id: caddy
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name: Caddy
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version: "2.7"
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description: Fast, multi-platform web server with automatic HTTPS
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icon: https://serverkit.ai/imgs/template-icons/caddy.svg
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website: https://caddyserver.com
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documentation: https://caddyserver.com/docs/
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categories:
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- networking
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- proxy
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- ssl
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variables:
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- name: HTTP_PORT
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description: HTTP port
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type: port
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default: "80"
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hidden: true
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- name: HTTPS_PORT
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description: HTTPS port
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type: port
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default: "443"
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hidden: true
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ports:
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- port: 80
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protocol: tcp
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description: HTTP
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- port: 443
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protocol: tcp
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description: HTTPS
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volumes:
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- name: data
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path: /data
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description: Caddy data
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- name: config
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path: /config
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description: Caddy configuration
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- name: site
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path: /srv
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description: Website files
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requirements:
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memory: 256MB
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storage: 1GB
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compose:
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services:
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caddy:
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image: caddy:${VERSION:-2.7-alpine}
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container_name: ${APP_NAME}
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restart: unless-stopped
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volumes:
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- caddy_data:/data
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- caddy_config:/config
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- caddy_site:/srv
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ports:
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- "${HTTP_PORT}:80"
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- "${HTTPS_PORT}:443"
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volumes:
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caddy_data:
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caddy_config:
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caddy_site:
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post_install: |
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# Create default Caddyfile
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cat > /var/serverkit/apps/${APP_NAME}/config/Caddyfile << 'EOF'
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:80 {
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respond "Hello from Caddy!"
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}
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EOF
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