rob
9ce4b5cd0a
- 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>
86 lines
2.6 KiB
Bash
Executable File
86 lines
2.6 KiB
Bash
Executable File
#!/bin/bash
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# Show RAM usage for containers
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# Usage: ./show-ram.sh [compose-file-name]
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# Without argument: shows all containers and total server RAM
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# With argument: shows containers for specific node
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BASEPATH="$(dirname "$0")"
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COMPOSE_NAME="$1"
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# Function to calculate and print total from container IDs
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calc_total() {
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local container_ids="$1"
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local total_mib=$(docker stats --no-stream --format "{{.MemUsage}}" $container_ids | \
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awk -F'/' '{
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val=$1;
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gsub(/[^0-9.]/,"",val);
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if($1 ~ /GiB/) val*=1024;
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sum+=val
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} END {printf "%.0f", sum}')
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if [ "$total_mib" -ge 1024 ] 2>/dev/null; then
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local total_gib=$(echo "scale=2; $total_mib / 1024" | bc)
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echo "${total_gib} GiB"
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else
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echo "${total_mib} MiB"
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fi
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}
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if [ -z "$COMPOSE_NAME" ]; then
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# No argument: show all containers grouped by compose project
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echo "RAM usage for all nodes:"
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echo "========================================"
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# Get all running containers
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ALL_CONTAINERS=$(docker ps -q 2>/dev/null)
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if [ -z "$ALL_CONTAINERS" ]; then
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echo "No running containers found"
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exit 0
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fi
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# Show stats for all containers, sorted by memory usage (descending)
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docker stats --no-stream --format "table {{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}" $ALL_CONTAINERS | \
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head -1
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docker stats --no-stream --format "{{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}" $ALL_CONTAINERS | \
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sort -t$'\t' -k2 -h -r
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echo "========================================"
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# Calculate total
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echo -n "Total container RAM: "
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calc_total "$ALL_CONTAINERS"
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# Show server total RAM
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total_server_ram=$(free -h | awk '/^Mem:/ {print $2}')
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used_server_ram=$(free -h | awk '/^Mem:/ {print $3}')
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echo "Server RAM: ${used_server_ram} / ${total_server_ram}"
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else
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# Specific node
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COMPOSE_FILE="${BASEPATH}/${COMPOSE_NAME}.yml"
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if [ ! -f "$COMPOSE_FILE" ]; then
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echo "Error: Compose file not found: $COMPOSE_FILE"
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exit 1
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fi
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# Get container IDs for this compose project
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CONTAINER_IDS=$(docker compose -f "$COMPOSE_FILE" ps -q 2>/dev/null)
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if [ -z "$CONTAINER_IDS" ]; then
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echo "No running containers found for $COMPOSE_NAME"
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exit 0
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fi
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echo "RAM usage for $COMPOSE_NAME:"
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echo "----------------------------------------"
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# Show stats for each container
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docker stats --no-stream --format "{{.Name}}\t{{.MemUsage}}\t{{.MemPerc}}" $CONTAINER_IDS
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echo "----------------------------------------"
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echo -n "Total: "
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calc_total "$CONTAINER_IDS"
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fi
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