31 lines
880 B
Bash
Executable File
31 lines
880 B
Bash
Executable File
#!/bin/sh
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#
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# check available RAM and IPv4s
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RAM_BYTES_TO_ALLOCATE="$1"
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RAM_BYTES_AVAILABLE=$(grep -E "^(size|memory_available_bytes)" /proc/spl/kstat/zfs/arcstats | awk '{sum+=$3} END {printf "%.0f", sum}')
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RAM_BYTES_REMAINDER="$((RAM_BYTES_AVAILABLE - RAM_BYTES_TO_ALLOCATE))"
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if echo "$RAM_BYTES_TO_ALLOCATE" | grep -vqE "^[0-9]+$"; then
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echo "RAM_BYTES_TO_ALLOCATE \"$RAM_BYTES_TO_ALLOCATE\" must be an integer"
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exit 1
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fi
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# 20GB
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if [ "$RAM_BYTES_REMAINDER" -le $((20 * 1024 * 1024 * 1024)) ]; then
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echo "VM is requesting more RAM than $(hostname -f) has available."
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echo "Bytes requested: $RAM_BYTES_TO_ALLOCATE"
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echo "Bytes available: $RAM_BYTES_AVAILABLE"
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exit 1
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fi
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IPV4_LIMIT=60
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IPV4_COUNT=$(grep ip-add /var/lib/libvirt/dnsmasq/virbr2.status | wc -l)
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if [ "$IPV4_COUNT" -ge "$IPV4_LIMIT" ]; then
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echo "IPv4 address limit reached"
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exit 1
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fi
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echo "yes"
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