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Add example getManifest invocation.

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This commit is contained in:
Mike Purvis 2023-06-26 14:08:48 -04:00
parent 25045ea2f3
commit 3fc3cd45ff
2 changed files with 9 additions and 4 deletions
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7
README.md
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@ -155,7 +155,12 @@ hashes contained within it. The advantages of this over the basic `pullImage`:
image just to compute a new narhash for it.
With this function the `manifest.json` functions as a lockfile meant to be stored in
source control alongside the Nix container definitions.
source control alongside the Nix container definitions. As a convenience, the manifest
can be fetched/updated using the supplied passthru script, eg:
```
nix run .#examples.fromImageManifest.fromImage.getManifest > examples/alpine-manifest.json
```
Function arguments are:

6
examples/alpine-manifest.json
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@ -4,13 +4,13 @@
"config": {
"mediaType": "application/vnd.docker.container.image.v1+json",
"size": 1472,
"digest": "sha256:5e2b554c1c45d22c9d1aa836828828e320a26011b76c08631ac896cbc3625e3e"
"digest": "sha256:c1aabb73d2339c5ebaa3681de2e9d9c18d57485045a4e311d9f8004bec208d67"
},
"layers": [
{
"mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
"size": 3397490,
"digest": "sha256:8a49fdb3b6a5ff2bd8ec6a86c05b2922a0f7454579ecc07637e94dfd1d0639b6"
"size": 3397879,
"digest": "sha256:31e352740f534f9ad170f75378a84fe453d6156e40700b882d737a8f4a6988a3"
}
]
}