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91 lines
1.5 KiB
Bash
91 lines
1.5 KiB
Bash
3 years ago
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#!/bin/bash
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# Nomad Bootstrap Script
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# Params:
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# client : bootstraps as client
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# exit on error
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set -e
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# create nomad dir
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mkdir -p /opt/nomad
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# create nomad user
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useradd --system --home /etc/nomad.d --shell /bin/false nomad
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nomaduser=nomad
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nomadgroup=nomad
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if [ "$#" -eq 1 ] && [ "$1" == "-client" ]; then
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echo "bootstraping as nomad client"
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nomaduser=root
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nomadgroup=root
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fi
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# write systemd conf
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cat >/etc/systemd/system/nomad.service <<EOF
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[Unit]
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Description = Nomad
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Documentation = https://nomadproject.io/docs/
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Wants = network-online.target
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After = network-online.target
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Wants = consul.service
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After = consul.service
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[Service]
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User = $nomaduser
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Group = $nomadgroup
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ExecReload=/bin/kill -HUP \$MAINPID
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ExecStart=/usr/local/bin/nomad agent -config /etc/nomad.d
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KillMode=process
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KillSignal=SIGINT
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LimitNOFILE=65536
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LimitNPROC=infinity
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Restart=on-failure
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RestartSec=2
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TasksMax=infinity
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OOMScoreAdjust=-1000
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[Install]
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WantedBy=multi-user.target
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EOF
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# create config dir
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mkdir -p /etc/nomad.d && chmod 700 /etc/nomad.d
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# write common nomad config
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cat >/etc/nomad.d/nomad.hcl <<EOF
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datacenter = "dc1"
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data_dir = "/opt/nomad"
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EOF
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if [ $nomaduser == "nomad" ]; then
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# write server config
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cat >/etc/nomad.d/server.hcl <<EOF
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server {
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enabled = true
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bootstrap_expect = 1
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}
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EOF
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else
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# write client config
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cat >/etc/nomad.d/client.hcl <<EOF
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client {
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enabled = true
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}
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EOF
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fi
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# reload systemd
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systemctl daemon-reload
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# enable and start service
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systemctl enable --now nomad.service
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echo "Done! Nomad service enabled and started."
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