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- #!/usr/bin/env bash
- set -e # Exit immediately if a command exits with a non-zero status.
- ROOT_FOLDER="$(readlink -f $(dirname "${BASH_SOURCE[0]}")/..)"
- STATE_FOLDER="${ROOT_FOLDER}/state"
- # Available disk space
- TOTAL_DISK_SPACE_BYTES=$(df -P -B 1 / | tail -n 1 | awk '{print $2}')
- AVAILABLE_DISK_SPACE_BYTES=$(df -P -B 1 / | tail -n 1 | awk '{print $4}')
- USED_DISK_SPACE_BYTES=$(($TOTAL_DISK_SPACE_BYTES - $AVAILABLE_DISK_SPACE_BYTES))
- # CPU info
- CPU_LOAD_PERCENTAGE=$(top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}')
- # Memory info
- MEM_TOTAL_BYTES=$(free -b | grep Mem | awk '{print $2}')
- MEM_AVAILABLE_BYTES=$(free -b | grep Mem | awk '{print $7}')
- MEM_USED_BYTES=$(($MEM_TOTAL_BYTES - $MEM_AVAILABLE_BYTES))
- # Create temporary json file
- TEMP_JSON_FILE=$(mktemp)
- 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}"
- # Write to state file
- echo "$(cat "${TEMP_JSON_FILE}")" > "${STATE_FOLDER}/system-info.json"
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