From fd8772f44276ce2cc2489f4ed228b72da2447e6c Mon Sep 17 00:00:00 2001 From: Mike Cowgill Date: Mon, 18 Jan 2016 17:12:48 -0800 Subject: [PATCH] Update quick start AWS Terraform This change started out as a quick update to RHEL 7 support (aka systemd), in the process I realized most of the other platforms could use an update. While trying to cleanup there I discovered I was repeating of bunch of information that might be better maintained in one place - as a result: * consolidated server.sh and install.sh * removed upstart-join.conf in a favor of join flag in the consul start * removed platform specific folders and increased complexity of install.sh to include handling the differences * updated and extracted consul version * added a consistent ip_table.sh file to open ports on firewalls * updating consul service management configurations to enable proper restarting behavior for each platform * the configuration naming convention is _file_name * added platform to the security group name so you can easily launch multpile platforms at once * fixes #1304 --- terraform/README.md | 2 +- terraform/aws/consul.tf | 16 +++--- terraform/aws/scripts/centos6/install.sh | 39 -------------- terraform/aws/scripts/centos6/server.sh | 15 ------ terraform/aws/scripts/centos6/service.sh | 5 -- .../aws/scripts/centos6/upstart-join.conf | 25 --------- .../upstart.conf => debian_upstart.conf} | 3 +- terraform/aws/scripts/install.sh | 53 +++++++++++++++++++ terraform/aws/scripts/ip_tables.sh | 12 +++++ terraform/aws/scripts/rhel6/install.sh | 37 ------------- terraform/aws/scripts/rhel6/server.sh | 15 ------ terraform/aws/scripts/rhel6/service.sh | 5 -- terraform/aws/scripts/rhel6/upstart-join.conf | 25 --------- terraform/aws/scripts/rhel_consul.service | 14 +++++ .../{rhel6/upstart.conf => rhel_upstart.conf} | 2 +- terraform/aws/scripts/service.sh | 12 +++++ terraform/aws/scripts/ubuntu/install.sh | 35 ------------ terraform/aws/scripts/ubuntu/server.sh | 14 ----- terraform/aws/scripts/ubuntu/service.sh | 5 -- .../aws/scripts/ubuntu/upstart-join.conf | 25 --------- terraform/aws/scripts/ubuntu/upstart.conf | 28 ---------- terraform/aws/variables.tf | 40 ++++++++++---- 22 files changed, 131 insertions(+), 296 deletions(-) delete mode 100644 terraform/aws/scripts/centos6/install.sh delete mode 100755 terraform/aws/scripts/centos6/server.sh delete mode 100755 terraform/aws/scripts/centos6/service.sh delete mode 100644 terraform/aws/scripts/centos6/upstart-join.conf rename terraform/aws/scripts/{centos6/upstart.conf => debian_upstart.conf} (95%) create mode 100644 terraform/aws/scripts/install.sh create mode 100644 terraform/aws/scripts/ip_tables.sh delete mode 100644 terraform/aws/scripts/rhel6/install.sh delete mode 100755 terraform/aws/scripts/rhel6/server.sh delete mode 100755 terraform/aws/scripts/rhel6/service.sh delete mode 100644 terraform/aws/scripts/rhel6/upstart-join.conf create mode 100644 terraform/aws/scripts/rhel_consul.service rename terraform/aws/scripts/{rhel6/upstart.conf => rhel_upstart.conf} (95%) create mode 100755 terraform/aws/scripts/service.sh delete mode 100644 terraform/aws/scripts/ubuntu/install.sh delete mode 100755 terraform/aws/scripts/ubuntu/server.sh delete mode 100755 terraform/aws/scripts/ubuntu/service.sh delete mode 100644 terraform/aws/scripts/ubuntu/upstart-join.conf delete mode 100644 terraform/aws/scripts/ubuntu/upstart.conf diff --git a/terraform/README.md b/terraform/README.md index 41c1ff489..484b4d738 100644 --- a/terraform/README.md +++ b/terraform/README.md @@ -2,4 +2,4 @@ This folder contains modules for Terraform that can setup Consul for various systems. The infrastructure provider that is used is designated -by the folder above. See the `variables.tf` file in each for more documentation. +by the folder above. See the `variables.tf` file in each for more documentation. diff --git a/terraform/aws/consul.tf b/terraform/aws/consul.tf index d1c57d9bb..ce5d6f0a7 100644 --- a/terraform/aws/consul.tf +++ b/terraform/aws/consul.tf @@ -16,14 +16,10 @@ resource "aws_instance" "server" { } provisioner "file" { - source = "${path.module}/scripts/${var.platform}/upstart.conf" - destination = "/tmp/upstart.conf" + source = "${path.module}/scripts/${lookup(var.service_conf, var.platform)}" + destination = "/tmp/${lookup(var.service_conf_dest, var.platform)}" } - provisioner "file" { - source = "${path.module}/scripts/${var.platform}/upstart-join.conf" - destination = "/tmp/upstart-join.conf" - } provisioner "remote-exec" { inline = [ @@ -34,15 +30,15 @@ resource "aws_instance" "server" { provisioner "remote-exec" { scripts = [ - "${path.module}/scripts/${var.platform}/install.sh", - "${path.module}/scripts/${var.platform}/server.sh", - "${path.module}/scripts/${var.platform}/service.sh", + "${path.module}/scripts/install.sh", + "${path.module}/scripts/service.sh", + "${path.module}/scripts/ip_tables.sh", ] } } resource "aws_security_group" "consul" { - name = "consul" + name = "consul_${var.platform}" description = "Consul internal traffic + maintenance." // These are for internal traffic diff --git a/terraform/aws/scripts/centos6/install.sh b/terraform/aws/scripts/centos6/install.sh deleted file mode 100644 index 9bd7e984c..000000000 --- a/terraform/aws/scripts/centos6/install.sh +++ /dev/null @@ -1,39 +0,0 @@ -#!/bin/bash -set -e - -# Read the address to join from the file we provisioned -JOIN_ADDRS=$(cat /tmp/consul-server-addr | tr -d '\n') - -# consul version to install -CONSUL_VERSION=0.5.2 - -echo "Installing dependencies..." -yum update -y -yum install -y unzip wget - -echo "Fetching Consul..." -cd /tmp -wget "https://releases.hashicorp.com/consul/${CONSUL_VERSION}/consul_${CONSUL_VERSION}_linux_amd64.zip" -O consul.zip - -echo "Installing Consul..." -unzip consul.zip >/dev/null -chmod +x consul -mv consul /usr/local/bin/consul -mkdir -p /etc/consul.d -mkdir -p /mnt/consul -mkdir -p /etc/service - -#Enable consul port in iptables -echo "Allow port 8301 in iptables" -iptables -I INPUT -s 0/0 -p tcp --dport 8301 -j ACCEPT - -# Setup the join address -cat >/tmp/consul-join << EOF -export CONSUL_JOIN="${JOIN_ADDRS}" -EOF -mv /tmp/consul-join /etc/service/consul-join -chmod 0644 /etc/service/consul-join - -echo "Installing Upstart service..." -mv /tmp/upstart.conf /etc/init/consul.conf -mv /tmp/upstart-join.conf /etc/init/consul-join.conf diff --git a/terraform/aws/scripts/centos6/server.sh b/terraform/aws/scripts/centos6/server.sh deleted file mode 100755 index 64e9cadfa..000000000 --- a/terraform/aws/scripts/centos6/server.sh +++ /dev/null @@ -1,15 +0,0 @@ -#!/bin/bash -set -e - -# Read from the file we created -SERVER_COUNT=$(cat /tmp/consul-server-count | tr -d '\n') - -# Write the flags to a temporary file -cat >/tmp/consul_flags << EOF -export CONSUL_FLAGS="-server -bootstrap-expect=${SERVER_COUNT} -data-dir=/mnt/consul" -EOF - -# Write it to the full service file -mv /tmp/consul_flags /etc/service/consul -chown root:root /etc/service/consul -chmod 0644 /etc/service/consul diff --git a/terraform/aws/scripts/centos6/service.sh b/terraform/aws/scripts/centos6/service.sh deleted file mode 100755 index c7ae0e2ae..000000000 --- a/terraform/aws/scripts/centos6/service.sh +++ /dev/null @@ -1,5 +0,0 @@ -#!/bin/bash -set -e - -echo "Starting Consul..." -start consul diff --git a/terraform/aws/scripts/centos6/upstart-join.conf b/terraform/aws/scripts/centos6/upstart-join.conf deleted file mode 100644 index 16343d875..000000000 --- a/terraform/aws/scripts/centos6/upstart-join.conf +++ /dev/null @@ -1,25 +0,0 @@ -description "Join the consul cluster" - -start on started consul -stop on stopped consul - -task - -script - if [ -f "/etc/service/consul-join" ]; then - . /etc/service/consul-join - fi - - # Keep trying to join until it succeeds - set +e - while :; do - logger -t "consul-join" "Attempting join: ${CONSUL_JOIN}" - /usr/local/bin/consul join \ - ${CONSUL_JOIN} \ - >>/var/log/consul-join.log 2>&1 - [ $? -eq 0 ] && break - sleep 5 - done - - logger -t "consul-join" "Join success!" -end script diff --git a/terraform/aws/scripts/centos6/upstart.conf b/terraform/aws/scripts/debian_upstart.conf similarity index 95% rename from terraform/aws/scripts/centos6/upstart.conf rename to terraform/aws/scripts/debian_upstart.conf index 7c050dc01..7c57a0efc 100644 --- a/terraform/aws/scripts/centos6/upstart.conf +++ b/terraform/aws/scripts/debian_upstart.conf @@ -1,6 +1,6 @@ description "Consul agent" -start on runlevel [2345] +start on started networking stop on runlevel [!2345] respawn @@ -24,3 +24,4 @@ script ${CONSUL_FLAGS} \ >>/var/log/consul.log 2>&1 end script + diff --git a/terraform/aws/scripts/install.sh b/terraform/aws/scripts/install.sh new file mode 100644 index 000000000..5fc2b417a --- /dev/null +++ b/terraform/aws/scripts/install.sh @@ -0,0 +1,53 @@ +#!/bin/bash +set -e + +echo "Installing dependencies..." +if [ -x "$(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..." +CONSUL=0.6.3 +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 + 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 + 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 diff --git a/terraform/aws/scripts/ip_tables.sh b/terraform/aws/scripts/ip_tables.sh new file mode 100644 index 000000000..d2fc87cf8 --- /dev/null +++ b/terraform/aws/scripts/ip_tables.sh @@ -0,0 +1,12 @@ +#!/bin/bash +set -e + +sudo iptables -I INPUT -s 0/0 -p tcp --dport 8300 -j ACCEPT +sudo iptables -I INPUT -s 0/0 -p tcp --dport 8301 -j ACCEPT +sudo iptables -I INPUT -s 0/0 -p tcp --dport 8302 -j ACCEPT + +if [ -d /etc/sysconfig ]; then + sudo iptables-save | sudo tee /etc/sysconfig/iptables +else + sudo iptables-save | sudo tee /etc/iptables.rules +fi diff --git a/terraform/aws/scripts/rhel6/install.sh b/terraform/aws/scripts/rhel6/install.sh deleted file mode 100644 index 43f71a94e..000000000 --- a/terraform/aws/scripts/rhel6/install.sh +++ /dev/null @@ -1,37 +0,0 @@ -#!/bin/bash -set -e - -# Read the address to join from the file we provisioned -JOIN_ADDRS=$(cat /tmp/consul-server-addr | tr -d '\n') - -# consul version to install -CONSUL_VERSION=0.5.2 - -echo "Installing dependencies..." -sudo yum update -y -sudo yum install -y unzip wget - -echo "Fetching Consul..." -cd /tmp -wget "https://releases.hashicorp.com/consul/${CONSUL_VERSION}/consul_${CONSUL_VERSION}_linux_amd64.zip" -O consul.zip - -echo "Installing Consul..." -unzip consul.zip >/dev/null -sudo chmod +x consul -sudo mv consul /usr/local/bin/consul -sudo mkdir -p /etc/consul.d -sudo mkdir -p /mnt/consul -sudo mkdir -p /etc/service - -# Setup the join address -cat >/tmp/consul-join << EOF -export CONSUL_JOIN="${JOIN_ADDRS}" -EOF -sudo mv /tmp/consul-join /etc/service/consul-join -chmod 0644 /etc/service/consul-join - -echo "Installing Upstart service..." -sudo chown root:root /tmp/upstart.conf -sudo chown root:root /tmp/upstart-join.conf -sudo mv /tmp/upstart.conf /etc/init/consul.conf -sudo mv /tmp/upstart-join.conf /etc/init/consul-join.conf diff --git a/terraform/aws/scripts/rhel6/server.sh b/terraform/aws/scripts/rhel6/server.sh deleted file mode 100755 index 80057cbf8..000000000 --- a/terraform/aws/scripts/rhel6/server.sh +++ /dev/null @@ -1,15 +0,0 @@ -#!/bin/bash -set -e - -# Read from the file we created -SERVER_COUNT=$(cat /tmp/consul-server-count | tr -d '\n') - -# Write the flags to a temporary file -cat >/tmp/consul_flags << EOF -export CONSUL_FLAGS="-server -bootstrap-expect=${SERVER_COUNT} -data-dir=/mnt/consul" -EOF - -# Write it to the full service file -sudo mv /tmp/consul_flags /etc/service/consul -sudo chown root:root /etc/service/consul -sudo chmod 0644 /etc/service/consul diff --git a/terraform/aws/scripts/rhel6/service.sh b/terraform/aws/scripts/rhel6/service.sh deleted file mode 100755 index 7c186e97a..000000000 --- a/terraform/aws/scripts/rhel6/service.sh +++ /dev/null @@ -1,5 +0,0 @@ -#!/bin/bash -set -e - -echo "Starting Consul..." -sudo start consul diff --git a/terraform/aws/scripts/rhel6/upstart-join.conf b/terraform/aws/scripts/rhel6/upstart-join.conf deleted file mode 100644 index 16343d875..000000000 --- a/terraform/aws/scripts/rhel6/upstart-join.conf +++ /dev/null @@ -1,25 +0,0 @@ -description "Join the consul cluster" - -start on started consul -stop on stopped consul - -task - -script - if [ -f "/etc/service/consul-join" ]; then - . /etc/service/consul-join - fi - - # Keep trying to join until it succeeds - set +e - while :; do - logger -t "consul-join" "Attempting join: ${CONSUL_JOIN}" - /usr/local/bin/consul join \ - ${CONSUL_JOIN} \ - >>/var/log/consul-join.log 2>&1 - [ $? -eq 0 ] && break - sleep 5 - done - - logger -t "consul-join" "Join success!" -end script diff --git a/terraform/aws/scripts/rhel_consul.service b/terraform/aws/scripts/rhel_consul.service new file mode 100644 index 000000000..250c9b1eb --- /dev/null +++ b/terraform/aws/scripts/rhel_consul.service @@ -0,0 +1,14 @@ +[Unit] +Description=consul agent +Requires=network-online.target +After=network-online.target + +[Service] +EnvironmentFile=-/etc/sysconfig/consul +Restart=on-failure +ExecStart=/usr/local/bin/consul agent $CONSUL_FLAGS -config-dir=/etc/systemd/system/consul.d +ExecReload=/bin/kill -HUP $MAINPID +KillSignal=SIGINT + +[Install] +WantedBy=multi-user.target diff --git a/terraform/aws/scripts/rhel6/upstart.conf b/terraform/aws/scripts/rhel_upstart.conf similarity index 95% rename from terraform/aws/scripts/rhel6/upstart.conf rename to terraform/aws/scripts/rhel_upstart.conf index 7c050dc01..424e87783 100644 --- a/terraform/aws/scripts/rhel6/upstart.conf +++ b/terraform/aws/scripts/rhel_upstart.conf @@ -1,6 +1,6 @@ description "Consul agent" -start on runlevel [2345] +start on started network stop on runlevel [!2345] respawn diff --git a/terraform/aws/scripts/service.sh b/terraform/aws/scripts/service.sh new file mode 100755 index 000000000..be67ed090 --- /dev/null +++ b/terraform/aws/scripts/service.sh @@ -0,0 +1,12 @@ +#!/bin/bash +set -e + +echo "Starting Consul..." +if [ -x "$(command -v systemctl)" ]; then + echo "using systemctl" + sudo systemctl enable consul.service + sudo systemctl start consul +else + echo "using upstart" + sudo start consul +fi diff --git a/terraform/aws/scripts/ubuntu/install.sh b/terraform/aws/scripts/ubuntu/install.sh deleted file mode 100644 index 8ec0773f8..000000000 --- a/terraform/aws/scripts/ubuntu/install.sh +++ /dev/null @@ -1,35 +0,0 @@ -#!/bin/bash -set -e - -# Read the address to join from the file we provisioned -JOIN_ADDRS=$(cat /tmp/consul-server-addr | tr -d '\n') - -# consul version to install -CONSUL_VERSION=0.5.2 - -echo "Installing dependencies..." -sudo apt-get update -y -sudo apt-get install -y unzip - -echo "Fetching Consul..." -cd /tmp -wget "https://releases.hashicorp.com/consul/${CONSUL_VERSION}/consul_${CONSUL_VERSION}_linux_amd64.zip" -O consul.zip - -echo "Installing Consul..." -unzip consul.zip >/dev/null -sudo chmod +x consul -sudo mv consul /usr/local/bin/consul -sudo mkdir -p /etc/consul.d -sudo mkdir -p /mnt/consul -sudo mkdir -p /etc/service - -# Setup the join address -cat >/tmp/consul-join << EOF -export CONSUL_JOIN="${JOIN_ADDRS}" -EOF -sudo mv /tmp/consul-join /etc/service/consul-join -chmod 0644 /etc/service/consul-join - -echo "Installing Upstart service..." -sudo mv /tmp/upstart.conf /etc/init/consul.conf -sudo mv /tmp/upstart-join.conf /etc/init/consul-join.conf diff --git a/terraform/aws/scripts/ubuntu/server.sh b/terraform/aws/scripts/ubuntu/server.sh deleted file mode 100755 index 779114e28..000000000 --- a/terraform/aws/scripts/ubuntu/server.sh +++ /dev/null @@ -1,14 +0,0 @@ -#!/bin/bash -set -e - -# Read from the file we created -SERVER_COUNT=$(cat /tmp/consul-server-count | tr -d '\n') - -# Write the flags to a temporary file -cat >/tmp/consul_flags << EOF -export CONSUL_FLAGS="-server -bootstrap-expect=${SERVER_COUNT} -data-dir=/mnt/consul" -EOF - -# Write it to the full service file -sudo mv /tmp/consul_flags /etc/service/consul -chmod 0644 /etc/service/consul diff --git a/terraform/aws/scripts/ubuntu/service.sh b/terraform/aws/scripts/ubuntu/service.sh deleted file mode 100755 index 7c186e97a..000000000 --- a/terraform/aws/scripts/ubuntu/service.sh +++ /dev/null @@ -1,5 +0,0 @@ -#!/bin/bash -set -e - -echo "Starting Consul..." -sudo start consul diff --git a/terraform/aws/scripts/ubuntu/upstart-join.conf b/terraform/aws/scripts/ubuntu/upstart-join.conf deleted file mode 100644 index 16343d875..000000000 --- a/terraform/aws/scripts/ubuntu/upstart-join.conf +++ /dev/null @@ -1,25 +0,0 @@ -description "Join the consul cluster" - -start on started consul -stop on stopped consul - -task - -script - if [ -f "/etc/service/consul-join" ]; then - . /etc/service/consul-join - fi - - # Keep trying to join until it succeeds - set +e - while :; do - logger -t "consul-join" "Attempting join: ${CONSUL_JOIN}" - /usr/local/bin/consul join \ - ${CONSUL_JOIN} \ - >>/var/log/consul-join.log 2>&1 - [ $? -eq 0 ] && break - sleep 5 - done - - logger -t "consul-join" "Join success!" -end script diff --git a/terraform/aws/scripts/ubuntu/upstart.conf b/terraform/aws/scripts/ubuntu/upstart.conf deleted file mode 100644 index bf1a69332..000000000 --- a/terraform/aws/scripts/ubuntu/upstart.conf +++ /dev/null @@ -1,28 +0,0 @@ -description "Consul agent" - -start on runlevel [2345] -stop on runlevel [!2345] - -respawn -# This is to avoid Upstart re-spawning the process upon `consul leave` -normal exit 0 INT -# stop consul will not mark node as failed but left -kill signal INT - -script - if [ -f "/etc/service/consul" ]; then - . /etc/service/consul - fi - - # Make sure to use all our CPUs, because Consul can block a scheduler thread - export GOMAXPROCS=`nproc` - - # Get the public IP - BIND=`ifconfig eth0 | grep "inet addr" | awk '{ print substr($2,6) }'` - - exec /usr/local/bin/consul agent \ - -config-dir="/etc/consul.d" \ - -bind=$BIND \ - ${CONSUL_FLAGS} \ - >>/var/log/consul.log 2>&1 -end script diff --git a/terraform/aws/variables.tf b/terraform/aws/variables.tf index d6e66bd01..c1e3f760b 100644 --- a/terraform/aws/variables.tf +++ b/terraform/aws/variables.tf @@ -5,29 +5,49 @@ variable "platform" { variable "user" { default = { - ubuntu = "ubuntu" - rhel6 = "ec2-user" - centos6 = "root" + ubuntu = "ubuntu" + rhel6 = "ec2-user" + centos6 = "centos" + rhel7 = "ec2-user" } } variable "ami" { - description = "AWS AMI Id, if you change, make sure it is compatible with instance type, not all AMIs allow all instance types " + description = "AWS AMI Id, if you change, make sure it is compatible with instance type, not all AMIs allow all instance types " default = { - us-east-1-ubuntu = "ami-83c525e8" - us-west-2-ubuntu = "ami-57e8d767" + us-east-1-ubuntu = "ami-fce3c696" + us-west-2-ubuntu = "ami-9abea4fb" eu-west-1-ubuntu = "ami-47a23a30" eu-central-1-ubuntu = "ami-accff2b1" ap-northeast-1-ubuntu = "ami-90815290" ap-southeast-1-ubuntu = "ami-0accf458" ap-southeast-2-ubuntu = "ami-1dc8b127" - us-east-1-rhel6 = "ami-b0fed2d8" - us-west-2-rhel6 = "ami-2faa861f" - us-east-1-centos6 = "ami-c2a818aa" - us-west-2-centos6 = "ami-81d092b1" + us-east-1-rhel6 = "ami-0d28fe66" + us-west-2-rhel6 = "ami-3d3c0a0d" + us-east-1-centos6 = "ami-57cd8732" + us-west-2-centos6 = "ami-1255b321" + us-east-1-rhel7 = "ami-2051294a" + us-west-2-rhel7 = "ami-775e4f16" } } +variable "service_conf" { + default = { + ubuntu = "debian_upstart.conf" + rhel6 = "rhel_upstart.conf" + centos6 = "rhel_upstart.conf" + rhel7 = "rhel_consul.service" + } +} +variable "service_conf_dest" { + default = { + ubuntu = "upstart.conf" + rhel6 = "upstart.conf" + centos6 = "upstart.conf" + rhel7 = "consul.service" + } +} + variable "key_name" { description = "SSH key name in your AWS account for AWS instances." }