feat: add Docker Compose support for local orchestration (closes #15)

docker-compose.yml

@@ -0,0 +1,20 @@
+services:
+  sysmonitor:
+    build: 
+      context: .
+    image: linux-sysmonitor:v2
+    volumes:
+      - sysmonitor_logs:/app/logs
+    environment:
+      - LOG_LEVEL=INFO
+      - CHECK_INTERVAL=60
+      - TARGET_HOST=webserver
+    depends_on:
+      - webserver
+    # restart: unless-stopped 
+    # Enable this after health-check.sh is converted to a long-running monitoring service.
+  webserver:
+    image: nginx:alpine
+
+volumes:
+  sysmonitor_logs:

linux-sysmonitor/health-check.sh

@@ -6,7 +6,7 @@
 
 set -uo pipefail
 LOGFILE="logs/$(date +"%Y-%m-%d-%H-%M").log"
-
+TARGET_HOST="${TARGET_HOST:-8.8.8.8}"
 
 if [ -d logs ]; then
     :
@@ -91,7 +91,7 @@ check_top_processes() {
 check_top_processes
 
 check_network () {
-    NETWORK_CHECK=$(ping -c 4 8.8.8.8)
+    NETWORK_CHECK=$(ping -c 4 "$TARGET_HOST")
     PING_STATUS=$?
     PING_LATENCY=$(echo "$NETWORK_CHECK"| grep "rtt" | awk '{print $4}' | awk -F'/' '{print $2}')
     if [ $PING_STATUS -eq 0 ] ; then
@@ -100,7 +100,7 @@ check_network () {
         write_log "CRITICAL" "No network connectivity"
     fi
 }
-#check_network
+check_network
 
 check_ports (){
     PORTS=$(ss -tlnp | awk '{print $4}'| awk -F':' '{print $2}' | paste -sd ' ' -)