19 lines
921 B
Bash
19 lines
921 B
Bash
#!/usr/bin/env bash
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# 镜像里某个可执行文件的 SHA-256：ci/binary-hash.sh <镜像> <镜像里的路径>
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# 节点握手时上报的就是它正在运行的那个文件的哈希，CI 把这个哈希写进签名的清单（binaries），Backend 据此认「官方二进制」。
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# 先试在镜像里运行 sha256sum（同架构），不行再挂载镜像文件系统直接读。
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set -euo pipefail
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image="${1:?usage: binary-hash.sh <image> <path>}"; path="${2:?path in the image}"
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container="$(buildah from "$image")"
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trap 'buildah rm "$container" >/dev/null 2>&1 || true' EXIT
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if out="$(buildah run "$container" -- sha256sum "$path" 2>/dev/null)" && [[ "$out" =~ ^([0-9a-f]{64})[[:space:]] ]]; then
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echo "${BASH_REMATCH[1]}"
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exit 0
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fi
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buildah unshare bash -c '
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set -euo pipefail
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mount="$(buildah mount "$1")"
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sha256sum "$mount$2" | cut -d" " -f1
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buildah umount "$1" >/dev/null
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' _ "$container" "$path"
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