1skopeo-standalone-sign(1)() skopeo-standalone-sign(1)()
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6 skopeo-standalone-sign - Debugging tool - Publish and sign an image in
7 one step.
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11 skopeo standalone-sign [options] manifest docker-reference key-finger‐
12 print --output|-o signature
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16 This is primarily a debugging tool, useful for special cases, and usu‐
17 ally should not be a part of your normal operational workflow; use
18 skopeo copy --sign-by instead to publish and sign an image in one step.
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21 manifest Path to a file containing the image manifest
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24 docker-reference A docker reference to identify the image with
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27 key-fingerprint Key identity to use for signing
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31 See also skopeo(1) for options placed before the subcommand name.
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34 --help, -h
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37 Print usage statement
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40 --output, -o output file
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43 Write signature to output file.
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46 --passphrase-file=path
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49 The passphare to use when signing with the key ID from --sign-by. Only
50 the first line will be read. A passphrase stored in a file is of ques‐
51 tionable security if other users can read this file. Do not use this
52 option if at all avoidable.
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56 $ skopeo standalone-sign busybox-manifest.json registry.example.com/example/busybox 1D8230F6CDB6A06716E414C1DB72F2188BB46CC8 --output busybox.signature
57 $
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62 This command is intended for use with local signatures e.g. OpenPGP (
63 other signature formats may be added in the future ), as per contain‐
64 ers-signature(5). Furthermore, this command does not interact with the
65 artifacts generated by Docker Content Trust (DCT). For more informa‐
66 tion, please see containers-signature(5) ⟨https://github.com/contain‐
67 ers/image/blob/main/docs/containers-signature.5.md⟩.
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71 skopeo(1), skopeo-copy(1), containers-signature(5)
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75 Antonio Murdaca runcom@redhat.com ⟨mailto:runcom@redhat.com⟩, Miloslav
76 Trmac mitr@redhat.com ⟨mailto:mitr@redhat.com⟩, Jhon Honce jhonce@red‐
77 hat.com ⟨mailto:jhonce@redhat.com⟩
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81 skopeo-standalone-sign(1)()