From 9ce4b5cd0ac432825fb80e23badfb23324ccbc36 Mon Sep 17 00:00:00 2001
From: rob <rob@stakesquid.eu>
Date: Sat, 7 Feb 2026 09:38:49 +0000
Subject: [PATCH] show-ram.sh: Show all containers when no node_path given

- Without argument: shows all containers sorted by RAM, total container RAM, server RAM
- With argument: shows RAM for specific node only

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 show-ram.sh | 108 ++++++++++++++++++++++++++++++++++------------------
 1 file changed, 70 insertions(+), 38 deletions(-)

diff --git a/show-ram.sh b/show-ram.sh
index 4b4b5ac4..c4b2b632 100755
--- a/show-ram.sh
+++ b/show-ram.sh
@@ -1,53 +1,85 @@
 #!/bin/bash
 
-# Show RAM usage for containers in a compose file
-# Usage: ./show-ram.sh <compose-file-name>
-# Example: ./show-ram.sh ethereum-mainnet-geth-archive
+# Show RAM usage for containers
+# Usage: ./show-ram.sh [compose-file-name]
+# Without argument: shows all containers and total server RAM
+# With argument: shows containers for specific node
 
 BASEPATH="$(dirname "$0")"
 COMPOSE_NAME="$1"
 
+# Function to calculate and print total from container IDs
+calc_total() {
+    local container_ids="$1"
+    local total_mib=$(docker stats --no-stream --format "{{.MemUsage}}" $container_ids | \
+        awk -F'/' '{
+            val=$1;
+            gsub(/[^0-9.]/,"",val);
+            if($1 ~ /GiB/) val*=1024;
+            sum+=val
+        } END {printf "%.0f", sum}')
+
+    if [ "$total_mib" -ge 1024 ] 2>/dev/null; then
+        local total_gib=$(echo "scale=2; $total_mib / 1024" | bc)
+        echo "${total_gib} GiB"
+    else
+        echo "${total_mib} MiB"
+    fi
+}
+
 if [ -z "$COMPOSE_NAME" ]; then
-    echo "Usage: ./show-ram.sh <compose-file-name>"
-    echo "Example: ./show-ram.sh ethereum-mainnet-geth-archive"
-    exit 1
-fi
+    # No argument: show all containers grouped by compose project
+    echo "RAM usage for all nodes:"
+    echo "========================================"
 
-COMPOSE_FILE="${BASEPATH}/${COMPOSE_NAME}.yml"
+    # Get all running containers
+    ALL_CONTAINERS=$(docker ps -q 2>/dev/null)
 
-if [ ! -f "$COMPOSE_FILE" ]; then
-    echo "Error: Compose file not found: $COMPOSE_FILE"
-    exit 1
-fi
+    if [ -z "$ALL_CONTAINERS" ]; then
+        echo "No running containers found"
+        exit 0
+    fi
 
-# Get container IDs for this compose project
-CONTAINER_IDS=$(docker compose -f "$COMPOSE_FILE" ps -q 2>/dev/null)
+    # Show stats for all containers, sorted by memory usage (descending)
+    docker stats --no-stream --format "table {{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}" $ALL_CONTAINERS | \
+        head -1
+    docker stats --no-stream --format "{{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}" $ALL_CONTAINERS | \
+        sort -t$'\t' -k2 -h -r
 
-if [ -z "$CONTAINER_IDS" ]; then
-    echo "No running containers found for $COMPOSE_NAME"
-    exit 0
-fi
+    echo "========================================"
 
-echo "RAM usage for $COMPOSE_NAME:"
-echo "----------------------------------------"
+    # Calculate total
+    echo -n "Total container RAM: "
+    calc_total "$ALL_CONTAINERS"
 
-# Show stats for each container
-docker stats --no-stream --format "{{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}" $CONTAINER_IDS
-
-echo "----------------------------------------"
-
-# Calculate total
-total_mib=$(docker stats --no-stream --format "{{.MemUsage}}" $CONTAINER_IDS | \
-    awk -F'/' '{
-        val=$1;
-        gsub(/[^0-9.]/,"",val);
-        if($1 ~ /GiB/) val*=1024;
-        sum+=val
-    } END {printf "%.0f", sum}')
-
-if [ "$total_mib" -ge 1024 ]; then
-    total_gib=$(echo "scale=2; $total_mib / 1024" | bc)
-    echo "Total: ${total_gib} GiB"
+    # Show server total RAM
+    total_server_ram=$(free -h | awk '/^Mem:/ {print $2}')
+    used_server_ram=$(free -h | awk '/^Mem:/ {print $3}')
+    echo "Server RAM: ${used_server_ram} / ${total_server_ram}"
 else
-    echo "Total: ${total_mib} MiB"
+    # Specific node
+    COMPOSE_FILE="${BASEPATH}/${COMPOSE_NAME}.yml"
+
+    if [ ! -f "$COMPOSE_FILE" ]; then
+        echo "Error: Compose file not found: $COMPOSE_FILE"
+        exit 1
+    fi
+
+    # Get container IDs for this compose project
+    CONTAINER_IDS=$(docker compose -f "$COMPOSE_FILE" ps -q 2>/dev/null)
+
+    if [ -z "$CONTAINER_IDS" ]; then
+        echo "No running containers found for $COMPOSE_NAME"
+        exit 0
+    fi
+
+    echo "RAM usage for $COMPOSE_NAME:"
+    echo "----------------------------------------"
+
+    # Show stats for each container
+    docker stats --no-stream --format "{{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}" $CONTAINER_IDS
+
+    echo "----------------------------------------"
+    echo -n "Total: "
+    calc_total "$CONTAINER_IDS"
 fi