vikingowl
df5b0563c9
Post-process adapter-node output into a single self-contained build/bundle.mjs (614 KB) via esbuild, then ship it on a fresh alpine:3.21 base with just the node binary copied in. Drops the node_modules + package manager baggage that comes with node:25-alpine. - Add esbuild devDep + `bundle` script (scripts/bundle.mjs) - Dockerfile: drop `deps` stage; final stage is alpine + node binary + bundle + static client assets - Uncompressed image: 177 MB -> 149 MB (-16%) - Verified: /, /healthz, static assets all respond identically; outbound TLS to api.marktvogt.de works via node's built-in CA bundle
29 lines
1.0 KiB
JavaScript
29 lines
1.0 KiB
JavaScript
// Bundles the SvelteKit adapter-node output into a single self-contained
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// file so the runtime image can ship without node_modules.
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//
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// Input: build/index.js (+ its static + dynamic imports from build/**)
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// Output: build/bundle.mjs
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//
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// Dropping node_modules shrinks the image from ~130 MB to ~60 MB.
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import { build } from 'esbuild';
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await build({
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entryPoints: ['build/index.js'],
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bundle: true,
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platform: 'node',
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format: 'esm',
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outfile: 'build/bundle.mjs',
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// Keep node built-ins external; bundle everything else (including deps
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// pulled in transitively by @sveltejs/kit, valibot, etc.).
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external: ['node:*'],
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// ESM output lacks the CommonJS `require` global; some transitive deps
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// call it via interop helpers. This shim makes it available.
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banner: {
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js: "import { createRequire as __cr } from 'node:module'; const require = __cr(import.meta.url);"
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},
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// Dynamic imports in manifest.js reference hashed chunks by string
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// literal — esbuild statically traces these, no splitting needed.
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logLevel: 'info'
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});
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