sneak
a8905f5fe7
The canonical .dockerignore was three lines while the canonical Dockerfile does `COPY . .`, so a local .env, *.pem or *.key shipped into the build context and could land in an image layer, invisible to every git-based check. Copying .gitignore's patterns across is not the repair: .dockerignore anchors an unprefixed pattern at the context root, so that form protects only the repository root while reading as solved. Every depth-independent pattern here carries `**/`, and secret names are character ranges because matching is case-sensitive and an ALL-CAPS twin still misses `Server.Key`. Public certificates are deliberately left in as a legitimate build input. Verified by enumerating a probe image. Model: opus-5
50 lines
1.6 KiB
Plaintext
50 lines
1.6 KiB
Plaintext
# .dockerignore does NOT use .gitignore semantics. Docker matches with
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# moby/patternmatcher: filepath.Match plus `**`, so `*` does not cross
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# `/` and an unprefixed pattern is anchored at the context root. Every
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# depth-independent pattern therefore needs `**/`, or `config/.env` and
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# `certs/server.key` still ship while this file reads as solved. Only
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# genuinely root-anchored entries go unprefixed. Never transplant these
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# into .gitignore, where `**/` is wrong.
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#
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# Matching is case-sensitive, so secrets use character ranges rather
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# than an ALL-CAPS twin, which would still miss `Server.Key`.
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#
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# Extend with this repo's own host-built artifacts, written anchored:
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# `/myapp`, never `**/myapp`, which also matches `cmd/myapp/` and
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# deletes the package directory from the context.
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.git
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# Environment files. `*.env` covers bare `.env` and the `prod.env`
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# convention. Re-include a committed template with a negation if the
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# build needs one: `!docs/example.env`.
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**/*.[eE][nN][vV]
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**/.[eE][nN][vV].*
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**/.[eE][nN][vV][rR][cC]
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# Private keys and the bundles carrying them. Public certificates
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# (*.crt, *.cer) are deliberately absent: they are legitimate inputs.
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**/*.[pP][eE][mM]
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**/*.[kK][eE][yY]
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**/*.[pP]12
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**/*.[pP][fF][xX]
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**/[iI][dD]_[rR][sS][aA]
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**/[iI][dD]_[dD][sS][aA]
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**/[iI][dD]_[eE][cC][dD][sS][aA]
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**/[iI][dD]_[eE][dD]25519
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# Dependencies: restored inside the image, never copied in.
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**/node_modules
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# OS metadata.
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**/.DS_Store
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**/Thumbs.db
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# Editor state: never a build input, and it churns COPY.
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**/*.swp
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**/*.swo
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**/*~
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**/*.bak
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**/.idea
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**/.vscode
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**/*.sublime-*
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