Update 2025-04-13_16:21:50

lxc_list_sed.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+# =============================================================================
+# Script Name: lxc_list_sed.sh
+# Version: 1.10
+# Description: This script lists all LXC containers, checks their statuses, and
+#              updates the SENDMAILTO field in /etc/logcheck/logcheck.conf for 
+#              running containers. It includes error handling and logging.
+# =============================================================================
+
+# 01 Required commands
+REQUIRED_CMDS=("lxc-ls" "lxc-info" "lxc-attach" "lxc-start")
+
+# 02 Check if required commands are available
+for CMD in "${REQUIRED_CMDS[@]}"; do
+    if ! command -v $CMD &> /dev/null; then
+        echo "Command $CMD is not installed. Please install it and try again."
+        exit 1
+    fi
+done
+
+# 03 Function to check if a container is running
+is_container_running() {
+    local CONTAINER=$1
+    if lxc-info -n "$CONTAINER" | grep -q 'RUNNING'; then
+        echo "$CONTAINER is running."
+        return 0  # Container is running
+    else
+        echo "$CONTAINER is not running or does not exist."
+        return 1  # Container is not running
+    fi
+}
+
+# 04 List all running Linux containers
+list_running_containers() {
+    local CONTAINERS=($(lxc-ls -f | awk '$2 == "RUNNING" {print $1}'))
+    echo ${CONTAINERS[@]}
+}
+
+# 05 Update SENDMAILTO in /etc/logcheck/logcheck.conf for running LXC containers
+update_sendmailto() {
+    local NEW_EMAIL="logcheck+srvlogz@bubuit.net"
+    local RUNNING_CONTAINERS=($@)  # Get the list of running containers as arguments
+
+    for CONTAINER in "${RUNNING_CONTAINERS[@]}"; do
+        echo "Attempting to update SENDMAILTO in $CONTAINER"
+        if lxc-attach -n "$CONTAINER" -- bash -c "[ -f /etc/logcheck/logcheck.conf ]"; then
+            if lxc-attach -n "$CONTAINER" -- bash -c "sed -i 's/^SENDMAILTO.*/SENDMAILTO=\"$NEW_EMAIL\"/' /etc/logcheck/logcheck.conf"; then
+                echo "Successfully updated SENDMAILTO in $CONTAINER"
+            else
+                echo "Failed to update SENDMAILTO in $CONTAINER"
+            fi
+        else
+            echo "/etc/logcheck/logcheck.conf does not exist in $CONTAINER"
+        fi
+        sleep 1  # Introduce a sleep to avoid running too fast
+    done
+}
+
+# 06 Main script execution
+RUNNING_CONTAINERS=$(list_running_containers)
+echo -e "\nRunning Containers: ${RUNNING_CONTAINERS[@]}"
+echo -ne "\n"
+
+if [ -n "$RUNNING_CONTAINERS" ]; then
+    update_sendmailto ${RUNNING_CONTAINERS[@]}
+else
+    echo "No running containers found."
+fi
+