Effective DevOps with AWS

Making changes to provide the version and saving the console log

Our upstart configuration is located in the subdirectory scripts. With your code editor, open the file scripts/helloworld.conf.

We will edit the script section of the file as follows:

script 
    set -a 
    . /usr/local/helloworld/version 
    mkdir -p /var/log/helloworld/ 
    chown ec2-user:ec2-user /var/log/helloworld/ 
    exec su --session-command="/usr/bin/node /usr/local/helloworld/helloworld.js >> /var/log/helloworld/helloworld.log 2>&1" ec2-user 
end script 

The first set of changes will allow us to define the HELLOWORLD_VERSION environment variable. To get there, we will add a call to set -a to force our variables to be exported and source a new file, /usr/local/helloworld/version, which ...