docker, network and others

helpers/net.sh

@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+
+########################################################
+# Networking functions
+########################################################
+
+get_current_ip() {
+    local CURRENT_IP
+    [ -f /etc/os-release ] && source /etc/os-release
+    case "$ID" in
+        debian|ubuntu) CURRENT_IP=$(hostname -I | awk '{print $1}') ;;
+        alpine) CURRENT_IP=$(ip -4 addr show eth0 | awk '/inet / {print $2}' | cut -d/ -f1 | head -n 1) ;;
+        *) CURRENT_IP="Unknown" ;;
+    esac
+    echo "$CURRENT_IP"
+}
+
+get_external_ip() {
+    local ip="$(curl -s https://api.myip.com | jq .ip)"
+    echo "$ip" | tr -d '"'
+}
+
+is_valid_ipv4() {
+    local ip="$1"
+    local regex="^([0-9]{1,3}\.){3}[0-9]{1,3}$"
+
+    if [[ $ip =~ $regex ]]; then
+        IFS='.' read -r -a parts <<< "$ip"
+        for part in "${parts[@]}"; do
+            if ! [[ $part =~ ^[0-9]+$ ]] || ((part < 0 || part > 255)); then
+                return 1
+            fi
+        done
+        return 0
+    fi
+    return 1
+}
+
+curltime() {
+    curl -w @- -o /dev/null -s "$@" <<'EOF'
+    time_namelookup: %{time_namelookup} sec\n
+       time_connect: %{time_connect} sec\n
+    time_appconnect: %{time_appconnect} sec\n
+   time_pretransfer: %{time_pretransfer} sec\n
+      time_redirect: %{time_redirect} sec\n
+ time_starttransfer: %{time_starttransfer} sec\n
+                     ---------------\n
+         time_total: %{time_total} sec\n
+EOF
+}
+