Stretcher の Rollback script

example.md

$ ./rollback_stretcher.sh
 1) deploy-20151112-191452.yml  14) deploy-20151029-215027.yml
 2) deploy-20151112-191236.yml  15) deploy-20151028-182546.yml
 3) deploy-20151112-190934.yml  16) deploy-20151028-175655.yml
 4) deploy-20151112-190820.yml  17) deploy-20151028-175201.yml
 5) deploy-20151112-190421.yml  18) deploy-20151028-174909.yml
 6) deploy-20151112-190254.yml  19) deploy-20151028-174155.yml
 7) deploy-20151112-190127.yml  20) deploy-20151028-171838.yml
 8) deploy-20151112-190018.yml  21) deploy-20151022-191616.yml
 9) deploy-20151112-185832.yml  22) deploy-20151022-143736.yml
10) deploy-20151112-185441.yml  23) deploy-20151022-143011.yml
11) deploy-20151112-185341.yml  24) deploy-20151022-142645.yml
12) deploy-20151112-185242.yml  25) deploy-20151022-141728.yml
13) deploy-20151110-162450.yml  26) deploy-20151022-140614.yml
Select manifest (quit q or Ctrl-C) : 1
Event ID: 7a5e80c5-27aa-973e-3328-b7093a91439f

rollback_stretcher.sh

#!/bin/bash

CONSUL_EVENT="deploy"
BUCKET="xxx-stretcher-files"
S3_BASE="s3://${BUCKET}"

MANIFESTS=$(aws s3 ls ${S3_BASE} --output text | grep \.yml$ | awk '{print $NF}' | sort | tac | tail -n +2)

PS3="Select manifest (quit q or Ctrl-C) : "
select M in $MANIFESTS; do
    if [ "${REPLY}" = "q" ]; then
        echo "Exit from system"
        exit 0
    fi

    if [ -n "${M}" ]; then
        ID=$(basename ${M} .yml)
        MANIFEST="${S3_BASE}/${M}"
        break
    else
        echo "Invalid number"
        continue
    fi
done

consul event -name "${CONSUL_EVENT}" "${MANIFEST}"