Improve automatic Snap upgrades.

Thanks to xet7 !

snap-src/bin/logrotate-setup

@@ -0,0 +1,175 @@
+#!/bin/bash
+
+# Wekan Log Rotation Setup Script
+# This script sets up log rotation for Wekan snap installation
+
+set -e
+
+# Configuration
+SNAP_NAME="wekan"
+SNAP_COMMON="/var/snap/${SNAP_NAME}/common"
+LOGROTATE_DIR="/etc/logrotate.d"
+WEKAN_LOGROTATE_CONF="${LOGROTATE_DIR}/${SNAP_NAME}"
+
+# Log file paths
+MONGODB_LOG="${SNAP_COMMON}/mongodb.log"
+WEKAN_APP_LOG="${SNAP_COMMON}/wekan-app.log"
+WEKAN_ERROR_LOG="${SNAP_COMMON}/wekan-error.log"
+
+# Log rotation configuration
+ROTATE_SIZE="100M"
+KEEP_DAYS="30"
+KEEP_COPIES="10"
+
+log_message() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1"
+}
+
+log_error() {
+    echo "[$(date '+%Y-%m-%d %H:%M:%S')] ERROR: $1" >&2
+}
+
+# Check if running as root
+if [ "$EUID" -ne 0 ]; then
+    log_error "This script must be run as root"
+    exit 1
+fi
+
+# Check if snap is installed
+if ! snap list | grep -q "^${SNAP_NAME} "; then
+    log_error "Snap ${SNAP_NAME} is not installed"
+    exit 1
+fi
+
+log_message "Setting up log rotation for Wekan snap..."
+
+# Create logrotate configuration
+cat > "${WEKAN_LOGROTATE_CONF}" << EOF
+# Wekan Snap Log Rotation Configuration
+# Generated by wekan logrotate-setup script
+
+# MongoDB logs
+${MONGODB_LOG} {
+    daily
+    missingok
+    rotate ${KEEP_COPIES}
+    compress
+    delaycompress
+    notifempty
+    create 644 root root
+    postrotate
+        # Send SIGUSR1 to MongoDB to reopen log file
+        if [ -f "${SNAP_COMMON}/mongodb.pid" ]; then
+            kill -USR1 \$(cat "${SNAP_COMMON}/mongodb.pid") 2>/dev/null || true
+        fi
+        # Alternative: restart MongoDB service if PID file doesn't exist
+        if [ ! -f "${SNAP_COMMON}/mongodb.pid" ]; then
+            snap restart ${SNAP_NAME}.mongodb 2>/dev/null || true
+        fi
+    endscript
+}
+
+# Wekan application logs
+${WEKAN_APP_LOG} {
+    daily
+    missingok
+    rotate ${KEEP_COPIES}
+    compress
+    delaycompress
+    notifempty
+    create 644 root root
+    postrotate
+        # Send SIGUSR1 to Wekan application to reopen log file
+        if [ -f "${SNAP_COMMON}/wekan.pid" ]; then
+            kill -USR1 \$(cat "${SNAP_COMMON}/wekan.pid") 2>/dev/null || true
+        fi
+        # Alternative: restart Wekan service if PID file doesn't exist
+        if [ ! -f "${SNAP_COMMON}/wekan.pid" ]; then
+            snap restart ${SNAP_NAME}.wekan 2>/dev/null || true
+        fi
+    endscript
+}
+
+# Wekan error logs
+${WEKAN_ERROR_LOG} {
+    daily
+    missingok
+    rotate ${KEEP_COPIES}
+    compress
+    delaycompress
+    notifempty
+    create 644 root root
+    postrotate
+        # Send SIGUSR1 to Wekan application to reopen log file
+        if [ -f "${SNAP_COMMON}/wekan.pid" ]; then
+            kill -USR1 \$(cat "${SNAP_COMMON}/wekan.pid") 2>/dev/null || true
+        fi
+        # Alternative: restart Wekan service if PID file doesn't exist
+        if [ ! -f "${SNAP_COMMON}/wekan.pid" ]; then
+            snap restart ${SNAP_NAME}.wekan 2>/dev/null || true
+        fi
+    endscript
+}
+
+# Size-based rotation for large log files
+${SNAP_COMMON}/*.log {
+    size ${ROTATE_SIZE}
+    missingok
+    rotate ${KEEP_COPIES}
+    compress
+    delaycompress
+    notifempty
+    create 644 root root
+    sharedscripts
+    postrotate
+        # Generic postrotate for all log files
+        # Try to signal processes to reopen log files
+        for pidfile in "${SNAP_COMMON}"/*.pid; do
+            if [ -f "\$pidfile" ]; then
+                kill -USR1 \$(cat "\$pidfile") 2>/dev/null || true
+            fi
+        done
+        # Restart services if no PID files found
+        if [ ! -f "${SNAP_COMMON}/mongodb.pid" ] && [ ! -f "${SNAP_COMMON}/wekan.pid" ]; then
+            snap restart ${SNAP_NAME}.mongodb 2>/dev/null || true
+            snap restart ${SNAP_NAME}.wekan 2>/dev/null || true
+        fi
+    endscript
+}
+EOF
+
+log_message "Created logrotate configuration: ${WEKAN_LOGROTATE_CONF}"
+
+# Test logrotate configuration
+if logrotate -d "${WEKAN_LOGROTATE_CONF}" >/dev/null 2>&1; then
+    log_message "Logrotate configuration test passed"
+else
+    log_error "Logrotate configuration test failed"
+    exit 1
+fi
+
+# Create log directory if it doesn't exist
+mkdir -p "${SNAP_COMMON}"
+
+# Set proper permissions
+chown root:root "${WEKAN_LOGROTATE_CONF}"
+chmod 644 "${WEKAN_LOGROTATE_CONF}"
+
+# Create initial log files if they don't exist
+touch "${MONGODB_LOG}" "${WEKAN_APP_LOG}" "${WEKAN_ERROR_LOG}"
+chown root:root "${SNAP_COMMON}"/*.log
+chmod 644 "${SNAP_COMMON}"/*.log
+
+log_message "Log rotation setup completed successfully"
+log_message "Configuration file: ${WEKAN_LOGROTATE_CONF}"
+log_message "Log files will be rotated daily and when they exceed ${ROTATE_SIZE}"
+log_message "Log files will be kept for ${KEEP_DAYS} days (${KEEP_COPIES} copies)"
+log_message "To test log rotation manually: sudo logrotate -f ${WEKAN_LOGROTATE_CONF}"
+log_message "To view logrotate status: sudo logrotate -d ${WEKAN_LOGROTATE_CONF}"
+
+echo ""
+echo "Next steps:"
+echo "1. Configure MongoDB to log to file: sudo snap set ${SNAP_NAME} mongo-log-destination=snapcommon"
+echo "2. Configure Wekan to log to file (if not already done)"
+echo "3. Test log rotation: sudo logrotate -f ${WEKAN_LOGROTATE_CONF}"
+echo "4. Monitor log files: ls -la ${SNAP_COMMON}/*.log*"