105 lines
2.7 KiB
Bash
105 lines
2.7 KiB
Bash
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#!/usr/bin/env bash
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# When VMs are deleted, IPs remain allocated in dhcpdb
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# IP reclaim: https://discourse.ubuntu.com/t/is-it-possible-to-either-specify-an-ip-address-on-launch-or-reset-the-next-ip-address-to-be-used/30316
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ARG=$1
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set -euo pipefail
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RED="\033[1;31m"
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YELLOW="\033[1;33m"
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GREEN="\033[1;32m"
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BLUE="\033[1;34m"
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NC="\033[0m"
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echo -e "${BLUE}Checking system compatibility${NC}"
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MEM_GB=$(( $(sysctl hw.memsize | cut -d ' ' -f 2) / 1073741824 ))
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SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )/scripts
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if [ $MEM_GB -lt 12 ]
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then
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echo -e "${RED}System RAM is ${MEM_GB}GB. This is insufficient to deploy a working cluster.${NC}"
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exit 1
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fi
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if ! command -v multipass > /dev/null
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then
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echo -e "${RED}Cannot find multipass. Did you install it as per the instructions?${NC}"
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exit 1
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fi
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if ! command -v jq > /dev/null
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then
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echo -e "${RED}Cannot find jq. Did you install it as per the instructions?${NC}"
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exit 1
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fi
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specs=/tmp/vm-specs
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cat <<EOF > $specs
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controlplane01,2,2048M,10G
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controlplane02,2,2048M,5G
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loadbalancer,1,512M,5G
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node01,2,2048M,5G
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node02,2,2048M,5G
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EOF
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echo -e "${GREEN}System OK!${NC}"
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# If the nodes are running, reset them
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for spec in $(cat $specs)
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do
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node=$(cut -d ',' -f 1 <<< $spec)
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if multipass list --format json | jq -r '.list[].name' | grep $node > /dev/null
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then
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echo -n -e $RED
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read -p "VMs are running. Delete and rebuild them (y/n)? " ans
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echo -n -e $NC
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[ "$ans" != 'y' ] && exit 1
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break
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fi
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done
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# Boot the nodes
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for spec in $(cat $specs)
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do
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node=$(cut -d ',' -f 1 <<< $spec)
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cpus=$(cut -d ',' -f 2 <<< $spec)
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ram=$(cut -d ',' -f 3 <<< $spec)
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disk=$(cut -d ',' -f 4 <<< $spec)
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if multipass list --format json | jq -r '.list[].name' | grep $(cut -d ',' -f 1 <<< $node) > /dev/null
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then
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echo -e "${YELLOW}Deleting $node${NC}"
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multipass delete $node
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multipass purge
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fi
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echo -e "${BLUE}Launching ${node}${NC}"
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multipass launch --disk $disk --memory $ram --cpus $cpus --name $node jammy
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echo -e "${GREEN}$node booted!${NC}"
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done
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# Create hostfile entries
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echo -e "${BLUE}Provisioning...${NC}"
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hostentries=/tmp/hostentries
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[ -f $hostentries ] && rm -f $hostentries
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for spec in $(cat $specs)
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do
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node=$(cut -d ',' -f 1 <<< $spec)
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ip=$(multipass info $node --format json | jq -r 'first( .info[] | .ipv4[0] )')
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echo "$ip $node" >> $hostentries
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done
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for spec in $(cat $specs)
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do
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node=$(cut -d ',' -f 1 <<< $spec)
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multipass transfer $hostentries $node:/tmp/
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multipass transfer $SCRIPT_DIR/01-setup-hosts.sh $node:/tmp/
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multipass transfer $SCRIPT_DIR/cert_verify.sh $node:/home/ubuntu/
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multipass exec $node -- /tmp/01-setup-hosts.sh
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done
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echo -e "${GREEN}Done!${NC}"
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