open-consul/terraform/shared/scripts/install.sh

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#!/usr/bin/env bash
set -e
echo "Installing dependencies..."
if [ -x "$(command -v apt-get)" ]; then
sudo apt-get update -y
sudo apt-get install -y unzip
else
sudo yum update -y
sudo yum install -y unzip wget
fi
echo "Fetching Consul..."
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CONSUL=0.6.4
cd /tmp
wget https://releases.hashicorp.com/consul/${CONSUL}/consul_${CONSUL}_linux_amd64.zip -O consul.zip
echo "Installing Consul..."
unzip consul.zip >/dev/null
chmod +x consul
sudo mv consul /usr/local/bin/consul
sudo mkdir -p /opt/consul/data
# Read from the file we created
SERVER_COUNT=$(cat /tmp/consul-server-count | tr -d '\n')
CONSUL_JOIN=$(cat /tmp/consul-server-addr | tr -d '\n')
# Write the flags to a temporary file
cat >/tmp/consul_flags << EOF
CONSUL_FLAGS="-server -bootstrap-expect=${SERVER_COUNT} -join=${CONSUL_JOIN} -data-dir=/opt/consul/data"
EOF
if [ -f /tmp/upstart.conf ];
then
echo "Installing Upstart service..."
sudo mkdir -p /etc/consul.d
sudo mkdir -p /etc/service
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sudo chown root:root /tmp/upstart.conf
sudo mv /tmp/upstart.conf /etc/init/consul.conf
sudo chmod 0644 /etc/init/consul.conf
sudo mv /tmp/consul_flags /etc/service/consul
sudo chmod 0644 /etc/service/consul
else
echo "Installing Systemd service..."
sudo mkdir -p /etc/systemd/system/consul.d
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sudo chown root:root /tmp/consul.service
sudo mv /tmp/consul.service /etc/systemd/system/consul.service
sudo chmod 0644 /etc/systemd/system/consul.service
sudo mv /tmp/consul_flags /etc/sysconfig/consul
sudo chown root:root /etc/sysconfig/consul
sudo chmod 0644 /etc/sysconfig/consul
fi