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fix: symlink contents inside /opt/data instead of replacing Docker VOLUME

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The upstream Maintainerr image declares /opt/data as a Docker VOLUME.
Attempting to rm -rf /opt/data fails with "Resource busy" because mount
points cannot be removed. Instead, we now:
1. Copy seed data from /opt/data to /config (persistent storage)
2. Clear contents inside /opt/data (rm -rf /opt/data/*)
3. Symlink each item in /config back into /opt/data

This ensures the VOLUME directory stays intact while all data is
redirected to persistent storage.

Agent-Logs-Url: https://github.com/alexbelgium/hassio-addons/sessions/82a46feb-2e9c-4c40-b193-614167e6d5c3

Co-authored-by: alexbelgium <44178713+alexbelgium@users.noreply.github.com>
This commit is contained in:
copilot-swe-agent[bot]
2026-03-31 18:55:51 +00:00
parent 33654b0aa5
commit 9235b23a93
2 changed files with 16 additions and 4 deletions
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3
maintainerr/CHANGELOG.md
View File

@@ -1,4 +1,7 @@
## 3.2.0-3 (2026-03-31)
- Fix addon never starts: symlink contents inside /opt/data instead of replacing the Docker VOLUME directory
## 3.2.0-2 (2026-03-31)
- Fix configuration lost after container restart by symlinking /opt/data to persistent /config directory

17
maintainerr/rootfs/ha_entrypoint.sh
View File

@@ -31,14 +31,23 @@ fi
# Redirect /opt/data → /config (persistent via addon_config:rw) with a symlink.
DATA_DIR="/config"
echo "[Maintainerr] Setting up data directory: $DATA_DIR"
mkdir -p "$DATA_DIR"
mkdir -p "$DATA_DIR" "$DATA_DIR/logs"
# Preserve any seed data from the Docker volume before replacing it
# Preserve any seed data from the Docker volume before replacing it.
# /opt/data is a Docker VOLUME mount and cannot be removed, so instead of
# replacing the directory with a symlink, we symlink each item inside it.
if [ -d /opt/data ] && [ ! -L /opt/data ]; then
cp -rn /opt/data/. "$DATA_DIR/" 2>/dev/null || true
rm -rf /opt/data
# Remove contents inside /opt/data (the directory itself stays)
rm -rf /opt/data/*
fi
ln -sfn "$DATA_DIR" /opt/data
# Create symlinks for each item in $DATA_DIR inside /opt/data
for item in "$DATA_DIR"/*; do
[ -e "$item" ] || continue
name="$(basename "$item")"
ln -sfn "$item" "/opt/data/$name"
done
# Only chown on first run to avoid slow startup on large directories
if [ ! -f "$DATA_DIR/.initialized" ]; then