terça-feira, 11 de outubro de 2011

Automating GAE's application deployment with Jenkins

Follow below the expect script I created to automate the deployment of applications on GAE. It simply invokes/spawns the appcfg.sh and sends the account's password when prompted.
Then I configured a Jenkins job which contains a "execute shell" step invoking this script.

Jenkins "execute shell" step

expect $WORKSPACE/appcfg.exp "$APPENGINE_HOME" "myuser@gmail.com" "mypassword" "update" "$WORKSPACE/war"

appcfg.exp expect script

#!/usr/bin/expect -f
# Expect script to supply GAE's account password for appcfg.sh
# This script needs four arguments:
# username = GAE's google account email
# password = GAE's google account password
# warDir = war directory to deploy to GAE
# gaeHome = GAE's SDK home dir
# For example:
#  expect appcfg.exp myemail@gmail.com mypassword ./war /usr/share/appengine-sdk-1.5.3

if {[llength $argv] == 0} {
   puts "usage: appcfg.exp {-index|#}"
   exit 1

set gaeHome [lrange $argv 0 0]
set username [lrange $argv 1 1]
set password [lrange $argv 2 2]
set cmd [lrange $argv 3 3]
set warDir [lrange $argv 4 4]

set timeout -1

# spawns appcfg.sh
spawn $gaeHome/bin/appcfg.sh --enable_jar_splitting --passin --email=$username $cmd $warDir
match_max 100000

expect {
   default {exit 0}
   # Look for passwod prompt

# Send password aka $password
send -- "$password\r"

# send blank line (\r) to make sure we get back to gui
send -- "\r"
expect eof

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