24 lines
1.1 KiB
Bash
24 lines
1.1 KiB
Bash
#!/usr/bin/env bash
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# Explicit storage paths also work when a rootless Podman agent runs as UID 0
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# inside its user namespace. Changing HOME alone then selects the system store.
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moshiro_setup_buildah() {
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local store_home="${1:?Buildah cache directory is required}"
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local config="$store_home/.config/containers/moshiro-storage.conf"
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local key runroot
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key="$(printf '%s' "$store_home" | sha256sum | cut -c1-16)"
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runroot="${XDG_RUNTIME_DIR:-/tmp}/moshiro-buildah-$(id -u)/$key"
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mkdir -p "$store_home/.local/share/containers/storage" "$(dirname "$config")" "$runroot"
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(
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umask 077
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printf '[storage]\ndriver = "%s"\ngraphroot = "%s"\nrunroot = "%s"\n' \
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"${STORAGE_DRIVER:-overlay}" "$store_home/.local/share/containers/storage" "$runroot" > "$config"
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)
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chmod 700 "$runroot"
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export CONTAINERS_STORAGE_CONF="$config"
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# The outer Podman container provides the user namespace and capabilities;
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# RUN does not need a second OCI runtime or nested cgroup management.
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export BUILDAH_ISOLATION="${BUILDAH_ISOLATION:-chroot}"
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buildah info >/dev/null
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echo "Buildah store: $store_home/.local/share/containers/storage ($BUILDAH_ISOLATION)"
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}
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