test(ami-test): basic script for testing ami and bootstrapping

oem/ami/test_ami.sh

@@ -0,0 +1,117 @@
+#!/bin/bash
+#
+# This expects to run on an EC2 instance.
+#
+# mad props to Eric Hammond for the initial script
+#  https://github.com/alestic/alestic-hardy-ebs/blob/master/bin/alestic-hardy-ebs-build-ami
+
+# This script will launch three ec2 nodes with shared user-data, and then 
+# then test of the cluster is bootstrapped
+
+# Set pipefail along with -e in hopes that we catch more errors
+set -e -o pipefail
+
+USAGE="Usage: $0 -a ami-id
+    -a ami-id   ID of the AMI to be tests (required)
+    -K KEY      Path to Amazon API private key.
+    -C CERT     Path to Amazon API key certificate.
+    -h          this ;-)
+    -v          Verbose, see all the things!
+
+This script must be run from an ec2 host with the ec2 tools installed.
+"
+
+while getopts "a:K:C:hv" OPTION
+do
+    case $OPTION in
+        a) AMI="$OPTARG";;
+        K) export EC2_PRIVATE_KEY="$OPTARG";;
+        C) export EC2_CERT="$OPTARG";;
+        h) echo "$USAGE"; exit;;
+        v) set -x;;
+        *) exit 1;;
+    esac
+done
+
+if [[ $(id -u) -eq 0 ]]; then
+    echo "$0: This command should not be ran run as root!" >&2
+    exit 1
+fi
+
+if [ -z "$AMI" ]; then
+    echo "AMI required" >&2
+    echo "$USAGE" >&2
+    exit 1
+fi
+
+# check to make sure this is a valid image
+if ! ec2-describe-images -F image-id="$AMI" | grep -q "$AMI"; then
+    echo "Unknown image: $AMI" >&2
+    exit 1
+fi
+
+key_name="autotest-`date +%s`"
+key_file="/tmp/$key_name"
+ec2-create-keypair $key_name | grep -v KEYPAIR > $key_file
+chmod 600 $key_file
+
+sg_name=$key_name
+sg=$(ec2-create-group $sg_name --description "$sg_name" | cut -f2)
+ec2-authorize "$sg_name" -P tcp -p 4001 > /dev/null
+ec2-authorize "$sg_name" -P tcp -p 7001 > /dev/null
+ec2-authorize "$sg_name" -P tcp -p 22 > /dev/null
+
+# might be needed later for multi-zone tests
+zoneurl=http://instance-data/latest/meta-data/placement/availability-zone
+zone=$(curl --fail -s $zoneurl)
+region=$(echo $zone | sed 's/.$//')
+
+token=$(dd if=/dev/urandom bs=8 count=1 2> /dev/null| sha1sum|cut -d' ' -f1)
+
+instances=$(ec2-run-instances \
+    --user-data "$token" \
+    --instance-type "t1.micro" \
+    --instance-count 3 \
+    --group "$sg_name" \
+    --key "$key_name" $AMI | \
+       grep INSTANCE | cut -f2)
+
+# little hack to create a describe instances command that only 
+# pulls data for these instances
+ec2_cmd=$(echo $instances | sed 's/ / --filter instance-id=/g')
+ec2_cmd="ec2-describe-instances --filter instance-id=$ec2_cmd"
+
+while $ec2_cmd | grep INSTANCE | grep -q pending
+  do sleep 10; done
+
+declare -a ips=($($ec2_cmd | grep INSTANCE | cut -f4))
+
+# sleep until all the sockets we need come up
+for host in ${ips[@]}; do
+    timeout 30 perl -MIO::Socket::INET -e "
+        until(new IO::Socket::INET('$host:22')){sleep 1}"
+    timeout 30 perl -MIO::Socket::INET -e "
+        until(new IO::Socket::INET('$host:4001')){sleep 1}"
+    timeout 30 perl -MIO::Socket::INET -e "
+        until(new IO::Socket::INET('$host:7001')){sleep 1}"
+done
+
+test_key="v1/keys/test"
+# XXX: the sleeps *should never* be required, this is a bug in etcd
+sleep 1
+curl --fail -s -L "${ips[0]}:4001/$test_key" -d value="$token" > /dev/null
+sleep 1
+for host in ${ips[@]}; do
+    if ! curl --fail -s -L "${host}:4001/$test_key" | grep -q $token; then
+        echo "etcd bootstrap appears to have failed for $host" >&2
+	exit 1
+    fi
+done
+
+ec2-terminate-instances $instances > /dev/null
+while ! $ec2_cmd | grep INSTANCE | grep -q terminated
+  do sleep 10; done
+
+ec2-delete-group $sg_name > /dev/null
+ec2-delete-keypair $key_name > /dev/null
+rm $key_file