35 lines
1.6 KiB
Bash
Executable file
35 lines
1.6 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -e # Exit immediately if a command exits with a non-zero status.
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ROOT_FOLDER="${PWD}"
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STATE_FOLDER="${ROOT_FOLDER}/state"
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# if not on linux exit
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if [[ "$(uname)" != "Linux" ]]; then
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echo '{"cpu": { "load": 0 },"memory": { "available": 0, "total": 0, "used": 0 },"disk": { "available": 0, "total": 0, "used": 0 }}' >"${STATE_FOLDER}/system-info.json"
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exit 0
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fi
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ROOT_FOLDER="$(pwd)"
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STATE_FOLDER="${ROOT_FOLDER}/state"
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# Available disk space
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TOTAL_DISK_SPACE_BYTES=$(df -P -B 1 / | tail -n 1 | awk '{print $2}')
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AVAILABLE_DISK_SPACE_BYTES=$(df -P -B 1 / | tail -n 1 | awk '{print $4}')
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USED_DISK_SPACE_BYTES=$((TOTAL_DISK_SPACE_BYTES - AVAILABLE_DISK_SPACE_BYTES))
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# CPU info
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CPU_LOAD_PERCENTAGE=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}')
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# Memory info
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MEM_TOTAL_BYTES=$(($(grep </proc/meminfo MemTotal | awk '{print $2}') * 1024))
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MEM_AVAILABLE_BYTES=$(($(grep </proc/meminfo MemAvailable | awk '{print $2}') * 1024))
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MEM_USED_BYTES=$((MEM_TOTAL_BYTES - MEM_AVAILABLE_BYTES))
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# Create temporary json file
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TEMP_JSON_FILE=$(mktemp)
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echo '{ "cpu": { "load": '"${CPU_LOAD_PERCENTAGE}"' }, "memory": { "total": '"${MEM_TOTAL_BYTES}"' , "used": '"${MEM_USED_BYTES}"', "available": '"${MEM_AVAILABLE_BYTES}"' }, "disk": { "total": '"${TOTAL_DISK_SPACE_BYTES}"' , "used": '"${USED_DISK_SPACE_BYTES}"', "available": '"${AVAILABLE_DISK_SPACE_BYTES}"' } }' >"${TEMP_JSON_FILE}"
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# Write to state file
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cat "${TEMP_JSON_FILE}" >"${STATE_FOLDER}/system-info.json"
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chmod -R a+rwx "${ROOT_FOLDER}/state/system-info.json"
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