Add Ollama model auto-updater with systemd timer

ollama pull compares digests server-side so no download happens if
a model is already current. Timer runs monthly offset 2h from kiwix.
install.sh updated to handle all units generically.

https://claude.ai/code/session_012gDnantBmFTWZGCiKyjazx

ollama_update.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+# =============================================================================
+# Ollama Model Auto-Updater
+# Pulls latest version of every installed model. Ollama compares digests
+# server-side — no download happens if the model is already current.
+# Safe to run as a systemd timer.
+# =============================================================================
+
+OLLAMA_URL="${OLLAMA_HOST:-http://localhost:11434}"
+LOG="$HOME/docker/ai-stack/logs/ollama-update.log"
+mkdir -p "$(dirname "$LOG")"
+
+G='\033[0;32m'; Y='\033[1;33m'; C='\033[0;36m'; R='\033[0;31m'; N='\033[0m'
+ok()  { echo -e "${G}[OK]${N}  $1" | tee -a "$LOG"; }
+inf() { echo -e "${C}[..]${N}  $1" | tee -a "$LOG"; }
+wrn() { echo -e "${Y}[!!]${N}  $1" | tee -a "$LOG"; }
+err() { echo -e "${R}[XX]${N}  $1" | tee -a "$LOG"; }
+
+echo "" | tee -a "$LOG"
+echo "=== Ollama Model Update: $(date) ===" | tee -a "$LOG"
+echo "" | tee -a "$LOG"
+
+# Check Ollama is reachable
+if ! curl -sf "$OLLAMA_URL/api/tags" > /dev/null; then
+    err "Ollama not reachable at $OLLAMA_URL — is the container running?"
+    exit 1
+fi
+
+# Get installed model names from the API
+mapfile -t MODELS < <(
+    curl -sf "$OLLAMA_URL/api/tags" | \
+    grep -oP '"name"\s*:\s*"\K[^"]+' | \
+    sort -u
+)
+
+if [[ ${#MODELS[@]} -eq 0 ]]; then
+    wrn "No models found — nothing to update"
+    exit 0
+fi
+
+inf "Found ${#MODELS[@]} model(s): ${MODELS[*]}"
+echo "" | tee -a "$LOG"
+
+UPDATED=0
+FAILED=0
+
+for model in "${MODELS[@]}"; do
+    inf "Pulling $model..."
+    output=$(ollama pull "$model" 2>&1)
+    exit_code=$?
+
+    if [[ $exit_code -ne 0 ]]; then
+        err "$model: pull failed"
+        echo "$output" >> "$LOG"
+        FAILED=$((FAILED + 1))
+    elif echo "$output" | grep -q "up to date"; then
+        ok "$model: already up to date"
+    else
+        ok "$model: updated"
+        UPDATED=$((UPDATED + 1))
+    fi
+done
+
+echo "" | tee -a "$LOG"
+inf "Done — $UPDATED updated, $FAILED failed"
+echo "=== Complete: $(date) ===" | tee -a "$LOG"
+echo "" | tee -a "$LOG"

systemd/install.sh

@@ -1,19 +1,33 @@
 #!/bin/bash
-# Install kiwix-update systemd user units and enable the timer
+# Install all local-ai systemd user units and enable timers
 set -e
 
 UNIT_DIR="$HOME/.config/systemd/user"
 SRC="$(cd "$(dirname "$0")" && pwd)"
 
 mkdir -p "$UNIT_DIR"
-ln -sf "$SRC/kiwix-update.service" "$UNIT_DIR/kiwix-update.service"
-ln -sf "$SRC/kiwix-update.timer"   "$UNIT_DIR/kiwix-update.timer"
+
+for unit in "$SRC"/*.service "$SRC"/*.timer; do
+    name=$(basename "$unit")
+    ln -sf "$unit" "$UNIT_DIR/$name"
+    echo "Linked $name"
+done
 
 systemctl --user daemon-reload
-systemctl --user enable --now kiwix-update.timer
+
+for timer in "$SRC"/*.timer; do
+    name=$(basename "$timer")
+    systemctl --user enable --now "$name"
+    echo "Enabled $name"
+done
 
 echo ""
-systemctl --user list-timers kiwix-update.timer
+systemctl --user list-timers kiwix-update.timer ollama-update.timer
 echo ""
-echo "Run manually anytime:  systemctl --user start kiwix-update.service"
-echo "Logs:                  journalctl --user -u kiwix-update.service"
+echo "Run manually:"
+echo "  systemctl --user start kiwix-update.service"
+echo "  systemctl --user start ollama-update.service"
+echo ""
+echo "Logs:"
+echo "  journalctl --user -u kiwix-update.service -f"
+echo "  journalctl --user -u ollama-update.service -f"

systemd/ollama-update.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=Ollama model auto-updater
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash %h/local-ai/ollama_update.sh
+StandardOutput=journal
+StandardError=journal

systemd/ollama-update.timer

@@ -0,0 +1,11 @@
+[Unit]
+Description=Monthly Ollama model update check
+Requires=ollama-update.service
+
+[Timer]
+OnCalendar=monthly
+RandomizedDelaySec=2h
+Persistent=true
+
+[Install]
+WantedBy=timers.target