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38 lines
688 B
38 lines
688 B
#!/bin/bash
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orig=$0.diverted
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if [ -z "$APP_LOCATION" ]; then
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echo "Error: APP_LOCATION was not defined."
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exit 1
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fi
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app=/srv/app
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root=$app/root
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changes=$app/changes/0000
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mnt=$app/mnt
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## All these should be in the root image
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#mkdir -p $root $mnt
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#mkdir -p "$(dirname "$APP_LOCATION")"
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if [ -d "$changes" ]; then
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clean_all() {
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cd /
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mountpoint "$mnt" 2>/dev/null && umount "$mnt"
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}
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trap "clean_all" EXIT
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mount -t aufs -o br=$changes:$root -o udba=none none "$mnt"
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if [ "$?" != 0 ]; then
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echo "Error: aufs mount failed."
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exit 1
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fi
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ln -sf "$mnt" "$APP_LOCATION"
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else
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ln -sf "$root" "$APP_LOCATION"
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fi
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"$orig" "$@"
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