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get capacity from /proc/meminfo (via 3wordchant/capsul-flask)

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knoflook 2022-05-09 15:30:48 +02:00
parent cb8b605383
commit f578de0ef6
Signed by: knoflook
GPG Key ID: D6A1D0E8FC4FEF1C
1 changed files with 8 additions and 5 deletions
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13
capsulflask/shell_scripts/capacity-avaliable.sh
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@ -3,7 +3,7 @@
# check available RAM and IPv4s # check available RAM and IPv4s
ram_bytes_to_allocate="$1" ram_bytes_to_allocate="$1"
ram_bytes_available=$(grep -E "^(size|memory_available_bytes)" /proc/spl/kstat/zfs/arcstats | awk '{sum+=$3} END {printf "%.0f", sum}') ram_bytes_available="$(($(grep Available /proc/meminfo | grep -o '[0-9]*') * 1024))"
ram_bytes_remainder="$((ram_bytes_available - ram_bytes_to_allocate))" ram_bytes_remainder="$((ram_bytes_available - ram_bytes_to_allocate))"
if echo "$ram_bytes_to_allocate" | grep -vqE "^[0-9]+$"; then if echo "$ram_bytes_to_allocate" | grep -vqE "^[0-9]+$"; then
@ -11,8 +11,8 @@ if echo "$ram_bytes_to_allocate" | grep -vqE "^[0-9]+$"; then
exit 1 exit 1
fi fi
# 20GB # 0.25GB
if [ "$ram_bytes_remainder" -le $((20 * 1024 * 1024 * 1024)) ]; then if [ "$ram_bytes_remainder" -le $((1 * 1024 * 1024 * 1024 / 4)) ]; then
echo "VM is requesting more RAM than $(hostname -f) has available." echo "VM is requesting more RAM than $(hostname -f) has available."
echo "Bytes requested: $ram_bytes_to_allocate" echo "Bytes requested: $ram_bytes_to_allocate"
echo "Bytes available: $ram_bytes_available" echo "Bytes available: $ram_bytes_available"
@ -20,9 +20,12 @@ if [ "$ram_bytes_remainder" -le $((20 * 1024 * 1024 * 1024)) ]; then
fi fi
ipv4_limit=61 ipv4_limit=61
total_addresses_used=$(virsh net-dhcp-leases public2 | grep -E '.+' | tail -n +3 | wc -l) used_ips=$(grep ip-add "/var/lib/libvirt/dnsmasq/virbr3.status" | cut -d '"' -f 4)
reserved_ips=$(cat "/var/lib/libvirt/dnsmasq/public3.hostsfile" | cut -d ',' -f 2)
total_addresses_used=$(printf "$used_ips\n$reserved_ips" | sort | uniq | wc -l)
ipv4_count=$(printf "$total_addresses_used")
if [ "$total_addresses_used" -ge "$ipv4_limit" ]; then if [ "$ipv4_count" -ge "$ipv4_limit" ]; then
echo "IPv4 address limit reached" echo "IPv4 address limit reached"
exit 1 exit 1
fi fi