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aws: Let us pull all defaults from an ASG and launch template.

This commit is contained in:
Alex Vandiver 2021-05-18 19:31:30 +00:00 committed by Tim Abbott
parent 2198dbb8c1
commit 6ef497f002
1 changed files with 34 additions and 4 deletions
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38
tools/setup/install-aws-server
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@ -55,6 +55,7 @@ SECURITY_GROUPS=$(lookup security_groups)
AMI_ID=$(lookup image_id) AMI_ID=$(lookup image_id)
INSTANCE_TYPE=$(lookup instance_type) INSTANCE_TYPE=$(lookup instance_type)
SSH_SECRET_ID=$(lookup ssh_secret_id) SSH_SECRET_ID=$(lookup ssh_secret_id)
AUTO_SCALING_GROUP=$(lookup auto_scaling_group || true)
# Verify it doesn't exist already # Verify it doesn't exist already
ZONE_NAME=$($AWS route53 get-hosted-zone --id "$AWS_ZONE_ID" | jq -r '.HostedZone.Name') ZONE_NAME=$($AWS route53 get-hosted-zone --id "$AWS_ZONE_ID" | jq -r '.HostedZone.Name')
@ -68,6 +69,31 @@ if [ "$EXISTING_RECORDS" != "0" ]; then
exit 1 exit 1
fi fi
# Find the ASG, if there is one
EXTRA_ARGS=()
if [ -n "$AUTO_SCALING_GROUP" ]; then
ASG_DESC=$(aws autoscaling describe-auto-scaling-groups --auto-scaling-group-names "$AUTO_SCALING_GROUP" | jq '.AutoScalingGroups[0]')
LAUNCH_TEMPLATE=$(echo "$ASG_DESC" | jq '.LaunchTemplate | {Version, LaunchTemplateId}')
# We have to move things _into_ the ASG after we create them, but
# can only do so if they're in one of the AZ's that the ASG is
# for. Choose the AZ that is least-full.
POSSIBLE_AZS=$(echo "$ASG_DESC" | jq -r ".AvailabilityZones[]")
CURRENT_AZS=$(echo "$ASG_DESC" | jq -r '.Instances[] | .AvailabilityZone')
CHOSEN_AZ=$(echo -e "$POSSIBLE_AZS\n$CURRENT_AZS" | sort | uniq -c | sort -n | head -n1 | awk '{print $2}')
EXTRA_ARGS+=(
--launch-template "$LAUNCH_TEMPLATE"
--placement "AvailabilityZone=$CHOSEN_AZ"
)
else
EXTRA_ARGS+=(
--iam-instance-profile "Name=\"EC2ProdInstance\""
--image-id "$AMI_ID"
--instance-type "$INSTANCE_TYPE"
--security-group-ids "$SECURITY_GROUPS"
)
fi
# Build up the provisioning script # Build up the provisioning script
BOOTDATA=$(mktemp) BOOTDATA=$(mktemp)
{ {
@ -84,11 +110,8 @@ BOOTDATA=$(mktemp)
TAG_ROLE_NAMES=$(echo "$ROLES" | perl -pe 's/\w+::profile::(\w+)/$1/g') TAG_ROLE_NAMES=$(echo "$ROLES" | perl -pe 's/\w+::profile::(\w+)/$1/g')
TAGS="[{Key=Name,Value=$SERVER},{Key=role,Value=\"$TAG_ROLE_NAMES\"}]" TAGS="[{Key=Name,Value=$SERVER},{Key=role,Value=\"$TAG_ROLE_NAMES\"}]"
INSTANCE_DATA=$($AWS ec2 run-instances \ INSTANCE_DATA=$($AWS ec2 run-instances \
--iam-instance-profile 'Name="EC2ProdInstance"' \
--image-id "$AMI_ID" \
--instance-type "$INSTANCE_TYPE" \
--security-group-ids "$SECURITY_GROUPS" \
--tag-specifications "ResourceType=instance,Tags=$TAGS" \ --tag-specifications "ResourceType=instance,Tags=$TAGS" \
"${EXTRA_ARGS[@]}" \
--user-data "file://$BOOTDATA") --user-data "file://$BOOTDATA")
INSTANCEID=$(echo "$INSTANCE_DATA" | jq -r .Instances[0].InstanceId) INSTANCEID=$(echo "$INSTANCE_DATA" | jq -r .Instances[0].InstanceId)
@ -121,6 +144,13 @@ EOF
$AWS route53 change-resource-record-sets --hosted-zone-id "$AWS_ZONE_ID" --change-batch "file://$ROUTE53_CHANGES" $AWS route53 change-resource-record-sets --hosted-zone-id "$AWS_ZONE_ID" --change-batch "file://$ROUTE53_CHANGES"
rm "$ROUTE53_CHANGES" rm "$ROUTE53_CHANGES"
# Attach to the ASG
if [ -n "$AUTO_SCALING_GROUP" ]; then
# We need to wait for it to be "running" first
aws ec2 wait instance-running --instance-ids "$INSTANCEID"
aws autoscaling attach-instances --instance-ids "$INSTANCEID" --auto-scaling-group-name "$AUTO_SCALING_GROUP"
fi
set +x set +x
echo echo
echo echo