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sanoid: replace paths with mountpoints

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zfs accepts mountpoints too
This commit is contained in:
Motiejus Jakštys 2023-01-05 13:38:35 +02:00
parent 098fd77b3e
commit 32f7869460
2 changed files with 8 additions and 8 deletions
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4
configuration.nix
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@ -87,8 +87,8 @@ let ssh_pubkeys = {
autoprune = true;
post_snapshot_script = "/var/src/snaplink";
};
datasets."rpool/nixos/home".use_template = [ "prod" ];
datasets."rpool/nixos/var".use_template = [ "prod" ];
datasets."/home".use_template = [ "prod" ];
datasets."/var".use_template = [ "prod" ];
extraArgs = [ "--verbose" ];
};

12
scripts/snaplink
View File

@ -1,10 +1,10 @@
#!/usr/bin/env bash
set -euo pipefail
_fatal() { >&2 echo "ERROR: $*"; exit 1; }
mountpoint=$(zfs list -H -t filesystem -o mountpoint "$SANOID_TARGET")
[[ -n "$mountpoint" ]] || _fatal "expected non-empty $SANOID_TARGET"
snap_path="$mountpoint/.zfs/snapshot/$SANOID_SNAPNAME"
[[ -d "$snap_path" ]] || _fatal "expected to find a directory in $snap_path"
link_path="$mountpoint/.snapshot-latest"
snap_path="$SANOID_TARGET/.zfs/snapshot/$SANOID_SNAPNAME"
[[ -d "$snap_path" ]] || {
>&2 echo "expected to find a directory in $snap_path"
exit 1
}
link_path="$SANOID_TARGET/.snapshot-latest"
ln -sf "$snap_path" "$link_path"
>&2 printf "successfully created %s -> %s\n" "$link_path" "$snap_path"