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Properly get return value (considering errexit). Quote variables.

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This commit is contained in:
Madis Nõmme 2015-05-08 18:01:04 +03:00
parent d4d02a9028
commit eb220f05a6
1 changed files with 17 additions and 9 deletions
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26
cluster/aws/util.sh
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@ -354,7 +354,7 @@ function ensure-iam-profiles {
function wait-for-instance-running { function wait-for-instance-running {
instance_id=$1 instance_id=$1
while true; do while true; do
instance_state=$($AWS_CMD describe-instances --instance-ids $instance_id | expect_instance_states running) instance_state=$($AWS_CMD describe-instances --instance-ids ${instance_id} | expect_instance_states running)
if [[ "$instance_state" == "" ]]; then if [[ "$instance_state" == "" ]]; then
break break
else else
@ -365,6 +365,8 @@ function wait-for-instance-running {
done done
} }
# Allocates new Elastic IP from Amazon
# Output: allocated IP address
function allocate-elastic-ip { function allocate-elastic-ip {
$AWS_CMD allocate-address --domain vpc --output text | cut -f3 $AWS_CMD allocate-address --domain vpc --output text | cut -f3
} }
@ -372,23 +374,29 @@ function allocate-elastic-ip {
function assign-ip-to-instance { function assign-ip-to-instance {
local ip_address=$1 local ip_address=$1
local instance_id=$2 local instance_id=$2
local elastic_ip_allocation_id=$($AWS_CMD describe-addresses --public-ips $ip_address --output text | cut -f2) local fallback_ip=$3
$AWS_CMD associate-address --instance-id $master_instance_id --allocation-id $elastic_ip_allocation_id > /dev/null
local association_result=$?
if [[ $association_result -eq 0 ]]; then local elastic_ip_allocation_id=$($AWS_CMD describe-addresses --public-ips $ip_address --output text | cut -f2)
echo $ip_address local association_result=$($AWS_CMD associate-address --instance-id ${master_instance_id} --allocation-id ${elastic_ip_allocation_id} > /dev/null && echo "success" || echo "failure")
if [[ $association_result = "success" ]]; then
echo "${ip_address}"
else
echo "${fallback_ip}"
fi fi
} }
# Assigns elastic ip to a Amazon EC2 instance. If assigned public IP is empty,
# then will request new one.
# Output: assigned IP address
function assign-elastic-ip { function assign-elastic-ip {
local assigned_public_ip=$1 local assigned_public_ip=$1
local master_instance_id=$2 local master_instance_id=$2
if [[ -n $MASTER_RESERVED_IP ]]; then if [[ -n "${MASTER_RESERVED_IP}" ]]; then
assign-ip-to-instance $MASTER_RESERVED_IP $master_instance_id assign-ip-to-instance "${MASTER_RESERVED_IP}" "${master_instance_id}" "${assigned_public_ip}"
else else
assign-ip-to-instance $(allocate-elastic-ip) $master_instance_id assign-ip-to-instance $(allocate-elastic-ip) "${master_instance_id}" "${assigned_public_ip}"
fi fi
} }