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Add new rego function for blob files #3125

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48cf2b7
Go mod tidy cleanup
simonbaird Feb 26, 2026
faa456e
Add new rego function for blob files
simonbaird Feb 24, 2026
6338c88
Be defensive against oversized blob layers
simonbaird Feb 26, 2026
ef1af59
Avoid theoretical cache key clash for blobs/files
simonbaird Feb 26, 2026
9502ae8
Add make target to run gofmt -w
simonbaird Feb 26, 2026
f54b1df
Comment about tar file size limit effectiveness
simonbaird Feb 27, 2026
46155ec
Adjust cache var names for clarity
simonbaird Feb 27, 2026
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3 changes: 3 additions & 0 deletions Makefile
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Expand Up @@ -359,6 +359,9 @@ conftest-test-cmd-diff:
<(curl -s https://raw.githubusercontent.com/open-policy-agent/conftest/$${CONFTEST_VER}/internal/commands/test.go) \
cmd/test/test.go

fmt-all:
@git ls-files '*.go' | xargs gofmt -w

# Useful while hacking on build numbers and versions
debug-version:
@echo $(VERSION)
Expand Down
34 changes: 10 additions & 24 deletions acceptance/go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,8 @@ cloud.google.com/go v0.62.0/go.mod h1:jmCYTdRCQuc1PHIIJ/maLInMho30T/Y0M4hTdTShOY
cloud.google.com/go v0.65.0/go.mod h1:O5N8zS7uWy9vkA9vayVHs65eM1ubvY4h553ofrNHObY=
cloud.google.com/go v0.121.6 h1:waZiuajrI28iAf40cWgycWNgaXPO06dupuS+sgibK6c=
cloud.google.com/go v0.121.6/go.mod h1:coChdst4Ea5vUpiALcYKXEpR1S9ZgXbhEzzMcMR66vI=
cloud.google.com/go/auth v0.17.0 h1:74yCm7hCj2rUyyAocqnFzsAYXgJhrG26XCFimrc/Kz4=
cloud.google.com/go/auth v0.17.0/go.mod h1:6wv/t5/6rOPAX4fJiRjKkJCvswLwdet7G8+UGXt7nCQ=
cloud.google.com/go/auth v0.18.0 h1:wnqy5hrv7p3k7cShwAU/Br3nzod7fxoqG+k0VZ+/Pk0=
cloud.google.com/go/auth v0.18.0/go.mod h1:wwkPM1AgE1f2u6dG443MiWoD8C3BtOywNsUMcUTVDRo=
cloud.google.com/go/auth/oauth2adapt v0.2.8 h1:keo8NaayQZ6wimpNSmW5OPc283g65QNIiLpZnkHRbnc=
cloud.google.com/go/auth/oauth2adapt v0.2.8/go.mod h1:XQ9y31RkqZCcwJWNSx2Xvric3RrU88hAYYbjDWYDL+c=
cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
Expand All @@ -36,8 +36,8 @@ cloud.google.com/go/iam v1.5.3 h1:+vMINPiDF2ognBJ97ABAYYwRgsaqxPbQDlMnbHMjolc=
cloud.google.com/go/iam v1.5.3/go.mod h1:MR3v9oLkZCTlaqljW6Eb2d3HGDGK5/bDv93jhfISFvU=
cloud.google.com/go/kms v1.23.2 h1:4IYDQL5hG4L+HzJBhzejUySoUOheh3Lk5YT4PCyyW6k=
cloud.google.com/go/kms v1.23.2/go.mod h1:rZ5kK0I7Kn9W4erhYVoIRPtpizjunlrfU4fUkumUp8g=
cloud.google.com/go/longrunning v0.6.7 h1:IGtfDWHhQCgCjwQjV9iiLnUta9LBCo8R9QmAFsS/PrE=
cloud.google.com/go/longrunning v0.6.7/go.mod h1:EAFV3IZAKmM56TyiE6VAP3VoTzhZzySwI/YI1s/nRsY=
cloud.google.com/go/longrunning v0.7.0 h1:FV0+SYF1RIj59gyoWDRi45GiYUMM3K1qO51qoboQT1E=
cloud.google.com/go/longrunning v0.7.0/go.mod h1:ySn2yXmjbK9Ba0zsQqunhDkYi0+9rlXIwnoAf+h+TPY=
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA=
Expand Down Expand Up @@ -276,8 +276,6 @@ github.com/gkampitakis/go-snaps v0.5.7 h1:uVGjHR4t4pPHU944udMx7VKHpwepZXmvDMF+yD
github.com/gkampitakis/go-snaps v0.5.7/go.mod h1:ZABkO14uCuVxBHAXAfKG+bqNz+aa1bGPAg8jkI0Nk8Y=
github.com/gliderlabs/ssh v0.3.8 h1:a4YXD1V7xMF9g5nTkdfnja3Sxy1PVDCj1Zg4Wb8vY6c=
github.com/gliderlabs/ssh v0.3.8/go.mod h1:xYoytBv1sV0aL3CavoDuJIQNURXkkfPA/wxQ1pL1fAU=
github.com/go-chi/chi/v5 v5.2.3 h1:WQIt9uxdsAbgIYgid+BpYc+liqQZGMHRaUwp0JUcvdE=
github.com/go-chi/chi/v5 v5.2.3/go.mod h1:L2yAIGWB3H+phAw1NxKwWM+7eUH/lU8pOMm5hHcoops=
github.com/go-chi/chi/v5 v5.2.4 h1:WtFKPHwlywe8Srng8j2BhOD9312j9cGUxG1SP4V2cR4=
github.com/go-chi/chi/v5 v5.2.4/go.mod h1:X7Gx4mteadT3eDOMTsXzmI4/rwUpOwBHLpAfupzFJP0=
github.com/go-errors/errors v1.5.1 h1:ZwEMSLRCapFLflTpT7NKaAc7ukJ8ZPEjzlxt8rPN8bk=
Expand Down Expand Up @@ -317,8 +315,6 @@ github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
github.com/go-openapi/analysis v0.24.1 h1:Xp+7Yn/KOnVWYG8d+hPksOYnCYImE3TieBa7rBOesYM=
github.com/go-openapi/analysis v0.24.1/go.mod h1:dU+qxX7QGU1rl7IYhBC8bIfmWQdX4Buoea4TGtxXY84=
github.com/go-openapi/errors v0.22.5 h1:Yfv4O/PRYpNF3BNmVkEizcHb3uLVVsrDt3LNdgAKRY4=
github.com/go-openapi/errors v0.22.5/go.mod h1:z9S8ASTUqx7+CP1Q8dD8ewGH/1JWFFLX/2PmAYNQLgk=
github.com/go-openapi/errors v0.22.6 h1:eDxcf89O8odEnohIXwEjY1IB4ph5vmbUsBMsFNwXWPo=
github.com/go-openapi/errors v0.22.6/go.mod h1:z9S8ASTUqx7+CP1Q8dD8ewGH/1JWFFLX/2PmAYNQLgk=
github.com/go-openapi/jsonpointer v0.22.4 h1:dZtK82WlNpVLDW2jlA1YCiVJFVqkED1MegOUy9kR5T4=
Expand All @@ -329,8 +325,6 @@ github.com/go-openapi/loads v0.23.2 h1:rJXAcP7g1+lWyBHC7iTY+WAF0rprtM+pm8Jxv1uQJ
github.com/go-openapi/loads v0.23.2/go.mod h1:IEVw1GfRt/P2Pplkelxzj9BYFajiWOtY2nHZNj4UnWY=
github.com/go-openapi/runtime v0.29.2 h1:UmwSGWNmWQqKm1c2MGgXVpC2FTGwPDQeUsBMufc5Yj0=
github.com/go-openapi/runtime v0.29.2/go.mod h1:biq5kJXRJKBJxTDJXAa00DOTa/anflQPhT0/wmjuy+0=
github.com/go-openapi/spec v0.22.2 h1:KEU4Fb+Lp1qg0V4MxrSCPv403ZjBl8Lx1a83gIPU8Qc=
github.com/go-openapi/spec v0.22.2/go.mod h1:iIImLODL2loCh3Vnox8TY2YWYJZjMAKYyLH2Mu8lOZs=
github.com/go-openapi/spec v0.22.3 h1:qRSmj6Smz2rEBxMnLRBMeBWxbbOvuOoElvSvObIgwQc=
github.com/go-openapi/spec v0.22.3/go.mod h1:iIImLODL2loCh3Vnox8TY2YWYJZjMAKYyLH2Mu8lOZs=
github.com/go-openapi/strfmt v0.25.0 h1:7R0RX7mbKLa9EYCTHRcCuIPcaqlyQiWNPTXwClK0saQ=
Expand Down Expand Up @@ -475,12 +469,12 @@ github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/googleapis/enterprise-certificate-proxy v0.3.7 h1:zrn2Ee/nWmHulBx5sAVrGgAa0f2/R35S4DJwfFaUPFQ=
github.com/googleapis/enterprise-certificate-proxy v0.3.7/go.mod h1:MkHOF77EYAE7qfSuSS9PU6g4Nt4e11cnsDUowfwewLA=
github.com/googleapis/enterprise-certificate-proxy v0.3.9 h1:TOpi/QG8iDcZlkQlGlFUti/ZtyLkliXvHDcyUIMuFrU=
github.com/googleapis/enterprise-certificate-proxy v0.3.9/go.mod h1:MkHOF77EYAE7qfSuSS9PU6g4Nt4e11cnsDUowfwewLA=
github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
github.com/googleapis/gax-go/v2 v2.15.0 h1:SyjDc1mGgZU5LncH8gimWo9lW1DtIfPibOG81vgd/bo=
github.com/googleapis/gax-go/v2 v2.15.0/go.mod h1:zVVkkxAQHa1RQpg9z2AUCMnKhi0Qld9rcmyfL1OZhoc=
github.com/googleapis/gax-go/v2 v2.16.0 h1:iHbQmKLLZrexmb0OSsNGTeSTS0HO4YvFOG8g5E4Zd0Y=
github.com/googleapis/gax-go/v2 v2.16.0/go.mod h1:o1vfQjjNZn4+dPnRdl/4ZD7S9414Y4xA+a/6Icj6l14=
github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 h1:+ngKgrYPPJrOjhax5N+uePQ0Fh1Z7PheYoUI/0nzkPA=
github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
github.com/grpc-ecosystem/go-grpc-middleware v1.4.0 h1:UH//fgunKIs4JdUbpDl1VZCDaL56wXCB/5+wF6uHfaI=
Expand Down Expand Up @@ -773,8 +767,6 @@ github.com/sigstore/cosign/v3 v3.0.4 h1:SuEn9z8V0eyjF0PWxuGgQ7QSPWReNexLJovkZ3wL
github.com/sigstore/cosign/v3 v3.0.4/go.mod h1:DJY5LPzHiI6bWpG/Q/NQUTfeASjkN8TDAUx1Nnt3I0I=
github.com/sigstore/protobuf-specs v0.5.0 h1:F8YTI65xOHw70NrvPwJ5PhAzsvTnuJMGLkA4FIkofAY=
github.com/sigstore/protobuf-specs v0.5.0/go.mod h1:+gXR+38nIa2oEupqDdzg4qSBT0Os+sP7oYv6alWewWc=
github.com/sigstore/rekor v1.4.3 h1:2+aw4Gbgumv8vYM/QVg6b+hvr4x4Cukur8stJrVPKU0=
github.com/sigstore/rekor v1.4.3/go.mod h1:o0zgY087Q21YwohVvGwV9vK1/tliat5mfnPiVI3i75o=
github.com/sigstore/rekor v1.5.0 h1:rL7SghHd5HLCtsCrxw0yQg+NczGvM75EjSPPWuGjaiQ=
github.com/sigstore/rekor v1.5.0/go.mod h1:D7JoVCUkxwQOpPDNYeu+CE8zeBC18Y5uDo6tF8s2rcQ=
github.com/sigstore/rekor-tiles/v2 v2.0.1 h1:1Wfz15oSRNGF5Dzb0lWn5W8+lfO50ork4PGIfEKjZeo=
Expand Down Expand Up @@ -1212,8 +1204,6 @@ google.golang.org/api v0.25.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0M
google.golang.org/api v0.28.0/go.mod h1:lIXQywCXRcnZPGlsd8NbLnOjtAoL6em04bJ9+z0MncE=
google.golang.org/api v0.29.0/go.mod h1:Lcubydp8VUV7KeIHD9z2Bys/sm/vGKnG1UHuDBSrHWM=
google.golang.org/api v0.30.0/go.mod h1:QGmEvQ87FHZNiUVJkT14jQNYJ4ZJjdRF23ZXz5138Fc=
google.golang.org/api v0.258.0 h1:IKo1j5FBlN74fe5isA2PVozN3Y5pwNKriEgAXPOkDAc=
google.golang.org/api v0.258.0/go.mod h1:qhOMTQEZ6lUps63ZNq9jhODswwjkjYYguA7fA3TBFww=
google.golang.org/api v0.260.0 h1:XbNi5E6bOVEj/uLXQRlt6TKuEzMD7zvW/6tNwltE4P4=
google.golang.org/api v0.260.0/go.mod h1:Shj1j0Phr/9sloYrKomICzdYgsSDImpTxME8rGLaZ/o=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
Expand Down Expand Up @@ -1253,12 +1243,10 @@ google.golang.org/genproto v0.0.0-20200618031413-b414f8b61790/go.mod h1:jDfRM7Fc
google.golang.org/genproto v0.0.0-20200729003335-053ba62fc06f/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20200804131852-c06518451d9c/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
google.golang.org/genproto v0.0.0-20250922171735-9219d122eba9 h1:LvZVVaPE0JSqL+ZWb6ErZfnEOKIqqFWUJE2D0fObSmc=
google.golang.org/genproto v0.0.0-20250922171735-9219d122eba9/go.mod h1:QFOrLhdAe2PsTp3vQY4quuLKTi9j3XG3r6JPPaw7MSc=
google.golang.org/genproto v0.0.0-20251202230838-ff82c1b0f217 h1:GvESR9BIyHUahIb0NcTum6itIWtdoglGX+rnGxm2934=
google.golang.org/genproto v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:yJ2HH4EHEDTd3JiLmhds6NkJ17ITVYOdV3m3VKOnws0=
google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 h1:fCvbg86sFXwdrl5LgVcTEvNC+2txB5mgROGmRL5mrls=
google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217/go.mod h1:+rXWjjaukWZun3mLfjmVnQi18E1AsFbDN9QdJ5YXLto=
google.golang.org/genproto/googleapis/rpc v0.0.0-20251213004720-97cd9d5aeac2 h1:2I6GHUeJ/4shcDpoUlLs/2WPnhg7yJwvXtqcMJt9liA=
google.golang.org/genproto/googleapis/rpc v0.0.0-20251213004720-97cd9d5aeac2/go.mod h1:7i2o+ce6H/6BluujYR+kqX3GKH+dChPTQU19wjRPiGk=
google.golang.org/genproto/googleapis/rpc v0.0.0-20251222181119-0a764e51fe1b h1:Mv8VFug0MP9e5vUxfBcE3vUkV6CImK3cMNMIDFjmzxU=
google.golang.org/genproto/googleapis/rpc v0.0.0-20251222181119-0a764e51fe1b/go.mod h1:j9x/tPzZkyxcgEFkiKEEGxfvyumM01BEtsW8xzOahRQ=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
Expand All @@ -1274,8 +1262,6 @@ google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3Iji
google.golang.org/grpc v1.30.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.31.0/go.mod h1:N36X2cJ7JwdamYAgDz+s+rVMFjt3numwzf/HckM8pak=
google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
google.golang.org/grpc v1.77.0 h1:wVVY6/8cGA6vvffn+wWK5ToddbgdU3d8MNENr4evgXM=
google.golang.org/grpc v1.77.0/go.mod h1:z0BY1iVj0q8E1uSQCjL9cppRj+gnZjzDnzV0dHhrNig=
google.golang.org/grpc v1.78.0 h1:K1XZG/yGDJnzMdd/uZHAkVqJE+xIDOcmdSFZkBUicNc=
google.golang.org/grpc v1.78.0/go.mod h1:I47qjTo4OKbMkjA/aOOwxDIiPSBofUtQUI5EfpWvW7U=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
Expand Down
21 changes: 21 additions & 0 deletions docs/modules/ROOT/pages/ec_oci_blob_files.adoc
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@@ -0,0 +1,21 @@
= ec.oci.blob_files

Fetch structured files (YAML or JSON) from within a blob tar archive.

== Usage

files = ec.oci.blob_files(ref: string, paths: array<string>)

== Parameters

* `ref` (`string`): OCI blob reference
* `paths` (`array<string>`): the list of paths

== Return

`files` (`object`): object representing the extracted files

The object contains dynamic attributes.
The attributes are of `string` type and represent the full path of the file within the blob.
The values are of `any` type and hold the file contents.

2 changes: 2 additions & 0 deletions docs/modules/ROOT/pages/rego_builtins.adoc
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Expand Up @@ -10,6 +10,8 @@ information.
|===
|xref:ec_oci_blob.adoc[ec.oci.blob]
|Fetch a blob from an OCI registry.
|xref:ec_oci_blob_files.adoc[ec.oci.blob_files]
|Fetch structured files (YAML or JSON) from within a blob tar archive.
|xref:ec_oci_descriptor.adoc[ec.oci.descriptor]
|Fetch a raw Image from an OCI registry.
|xref:ec_oci_image_files.adoc[ec.oci.image_files]
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1 change: 1 addition & 0 deletions docs/modules/ROOT/partials/rego_nav.adoc
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@@ -1,5 +1,6 @@
* xref:rego_builtins.adoc[Rego Reference]
** xref:ec_oci_blob.adoc[ec.oci.blob]
** xref:ec_oci_blob_files.adoc[ec.oci.blob_files]
** xref:ec_oci_descriptor.adoc[ec.oci.descriptor]
** xref:ec_oci_image_files.adoc[ec.oci.image_files]
** xref:ec_oci_image_index.adoc[ec.oci.image_index]
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1 change: 0 additions & 1 deletion go.mod
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Expand Up @@ -327,7 +327,6 @@ require (
github.com/prometheus/statsd_exporter v0.27.1 // indirect
github.com/protocolbuffers/txtpbfmt v0.0.0-20251016062345-16587c79cd91 // indirect
github.com/rcrowley/go-metrics v0.0.0-20250401214520-65e299d6c5c9 // indirect
github.com/rivo/uniseg v0.4.7 // indirect
github.com/rogpeppe/go-internal v1.14.1 // indirect
github.com/russross/blackfriday/v2 v2.1.0 // indirect
github.com/sagikazarmark/locafero v0.11.0 // indirect
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