zulip/tools/setup/install-aws-server

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#!/usr/bin/env bash
set -e
SERVER=$1
ROLES=$2
BRANCH=$3
if [ -z "$SERVER" ] || [ -z "$ROLES" ]; then
echo "USAGE: $0 server roles [branch]"
echo
echo "Installs an empty Ubuntu server in AWS with a Zulip server role."
echo
echo " * server is the local part of the hostname (e.g. postgres0)"
echo " * roles is a comma-separated list of Puppet rules to be passed to scripts/lib/install"
echo " E.g. 'zulip::profile::postgresql'"
echo " * branch is used to override the default branch to install from."
echo
echo "Reads configuration from $HOME/.zulip-install-server.conf, which should look like:"
echo
echo "[repo]"
echo "repo_url=git@github.com:zulip/zulip.git"
echo "branch=master"
echo "[aws]"
echo "zone_id=Z2U988IEXAMPLE"
echo "security_groups=sg-01234567"
echo "image_id=ami-0dc45e3d9be6ab7b5"
echo "instance_type=m4.large"
echo "ssh_secret_id=prod/git/deploy"
exit 1
fi
set -x
cd "$(dirname "$0")"
source ./bootstrap-awscli
zulip_install_config_file="$HOME/.zulip-install-server.conf"
if [ ! -f "$zulip_install_config_file" ]; then
echo "No configuration file found in $zulip_install_config_file"
exit 1
fi
REPO_URL=$(crudini --get "$zulip_install_config_file" repo repo_url)
if [ -z "$BRANCH" ]; then
BRANCH=$(crudini --get "$zulip_install_config_file" repo default_branch)
fi
AWS_ZONE_ID=$(crudini --get "$zulip_install_config_file" aws zone_id)
SECURITY_GROUPS=$(crudini --get "$zulip_install_config_file" aws security_groups)
AMI_ID=$(crudini --get "$zulip_install_config_file" aws image_id)
INSTANCE_TYPE=$(crudini --get "$zulip_install_config_file" aws instance_type)
SSH_SECRET_ID=$(crudini --get "$zulip_install_config_file" aws ssh_secret_id)
# Verify it doesn't exist already
ZONE_NAME=$($AWS route53 get-hosted-zone --id "$AWS_ZONE_ID" | jq -r '.HostedZone.Name')
HOSTNAME="$SERVER.${ZONE_NAME%?}" # Remove trailing .
EXISTING_RECORDS=$($AWS route53 list-resource-record-sets \
--hosted-zone-id "$AWS_ZONE_ID" \
--query "ResourceRecordSets[?Name == '$HOSTNAME.']" \
| jq '. | length')
if [ "$EXISTING_RECORDS" != "0" ]; then
echo "$HOSTNAME already exists!"
exit 1
fi
# Build up the provisioning script
BOOTDATA=$(mktemp)
{
echo "#!/bin/bash"
echo "SERVER=$SERVER"
echo "HOSTNAME=$HOSTNAME"
echo "ROLES=$ROLES"
echo "REPO_URL=$REPO_URL"
echo "BRANCH=$BRANCH"
echo "SSH_SECRET_ID=$SSH_SECRET_ID"
sed '/^AWS=/ r ./bootstrap-awscli' bootstrap-aws-installer
} >>"$BOOTDATA"
TAGS="[{Key=Name,Value=$SERVER},{Key=role,Value=\"$ROLES\"}]"
INSTANCE_DATA=$($AWS ec2 run-instances \
--iam-instance-profile 'Name="EC2ProdInstance"' \
--image-id "$AMI_ID" \
--instance-type "$INSTANCE_TYPE" \
--security-group-ids "$SECURITY_GROUPS" \
--tag-specifications "ResourceType=instance,Tags=$TAGS" \
--user-data "file://$BOOTDATA")
INSTANCEID=$(echo "$INSTANCE_DATA" | jq -r .Instances[0].InstanceId)
# Wait for public IP assignment
PUBLIC_DNS_NAME=""
while [ -z "$PUBLIC_DNS_NAME" ]; do
sleep 1
PUBLIC_DNS_NAME=$($AWS ec2 describe-instances --instance-ids "$INSTANCEID" \
| jq -r .Reservations[0].Instances[0].PublicDnsName)
done
# Add the hostname to the zone
ROUTE53_CHANGES=$(mktemp)
cat >"$ROUTE53_CHANGES" <<EOF
{
"Comment": "Add the $HOSTNAME CNAME record",
"Changes": [
{
"Action": "CREATE",
"ResourceRecordSet": {
"Name": "$HOSTNAME",
"Type": "CNAME",
"TTL": 300,
"ResourceRecords": [{"Value": "$PUBLIC_DNS_NAME"}]
}
}
]
}
EOF
$AWS route53 change-resource-record-sets --hosted-zone-id "$AWS_ZONE_ID" --change-batch "file://$ROUTE53_CHANGES"
rm "$ROUTE53_CHANGES"
set +x
echo
echo
echo ">>> Install started successfully! Provisioning takes 5-6min."
echo " sleep 360 && ssh root@$HOSTNAME"