Initial commit: update manager with examples and README

.gitignore

@@ -0,0 +1,3 @@
+hosts.conf
+update-manager.conf
+*.log

README.md

@@ -0,0 +1,31 @@
+# Update Manager
+
+Lightweight SSH-based update manager for Linux systems.
+
+## Features
+
+- Check for updates across multiple hosts
+- Run upgrades remotely via SSH
+- Run autoremove
+- Simple inventory file
+- No external dependencies
+
+## Usage
+
+./lanx-update.sh check
+./lanx-update.sh update
+./lanx-update.sh autoremove
+./lanx-update.sh full
+
+## Hosts file format
+
+name|ip|ssh_user
+
+Example:
+
+server1|192.168.1.10|user
+
+## Config
+
+HOSTS_FILE="/opt/lanx/hosts.conf"
+NTFY_URL=""

hosts.conf.example

@@ -0,0 +1,3 @@
+# name|ip|ssh_user
+server1|192.168.1.10|user
+server2|192.168.1.20|user

lanx-update.sh

@@ -0,0 +1,103 @@
+#!/usr/bin/env bash
+
+HOSTS_FILE="/opt/lanx/hosts.conf"
+
+check_host() {
+    local name="$1"
+    local ip="$2"
+    local user="$3"
+    local result
+
+    echo "===== $name ($ip) ====="
+
+    result=$(ssh -n -o BatchMode=yes -o ConnectTimeout=5 "${user}@${ip}" \
+        "apt-get -s upgrade 2>/dev/null | grep '^Inst'")
+
+    if [[ -z "$result" ]]; then
+        echo "[OK] Up-to-date"
+    else
+        echo "[UPDATES]"
+        echo "$result"
+    fi
+
+    echo
+}
+
+update_host() {
+    local name="$1"
+    local ip="$2"
+    local user="$3"
+
+    echo "===== $name ($ip) ====="
+
+    ssh -n -o BatchMode=yes -o ConnectTimeout=5 "${user}@${ip}" \
+        "sudo -n apt-get update && sudo -n apt-get upgrade -y" || {
+        echo "[FEJL] kunne ikke opdatere"
+    }
+
+    echo
+}
+
+autoremove_host() {
+    local name="$1"
+    local ip="$2"
+    local user="$3"
+
+    echo "===== $name ($ip) ====="
+
+    ssh -n -o BatchMode=yes -o ConnectTimeout=5 "${user}@${ip}" \
+        "sudo -n apt-get autoremove -y" || {
+        echo "[FEJL] kunne ikke køre autoremove"
+    }
+
+    echo
+}
+
+full_host() {
+    local name="$1"
+    local ip="$2"
+    local user="$3"
+
+    echo "===== $name ($ip) ====="
+
+    ssh -n -o BatchMode=yes -o ConnectTimeout=5 "${user}@${ip}" \
+        "sudo -n apt-get update && sudo -n apt-get upgrade -y && sudo -n apt-get autoremove -y" || {
+        echo "[FEJL] kunne ikke køre full maintenance"
+    }
+
+    echo
+}
+
+run_action() {
+    local action="$1"
+
+    if [[ ! -f "$HOSTS_FILE" ]]; then
+        echo "FEJL: hosts-fil findes ikke: $HOSTS_FILE"
+        exit 1
+    fi
+
+    while IFS='|' read -r name ip user || [[ -n "$name" ]]; do
+        [[ -z "$name" || "$name" =~ ^# ]] && continue
+
+        case "$action" in
+            check)
+                check_host "$name" "$ip" "$user"
+                ;;
+            update)
+                update_host "$name" "$ip" "$user"
+                ;;
+            autoremove)
+                autoremove_host "$name" "$ip" "$user"
+                ;;
+            full)
+                full_host "$name" "$ip" "$user"
+                ;;
+            *)
+                echo "Brug: $0 {check|update|autoremove|full}"
+                exit 1
+                ;;
+        esac
+    done < "$HOSTS_FILE"
+}
+
+run_action "$1"

update-manager.conf.example

@@ -0,0 +1,2 @@
+HOSTS_FILE="/opt/lanx/hosts.conf"
+NTFY_URL=""