AWS CodeDeploy AfterInstall script is being run from code-deploy agent dir

Question

I'm trying to run AfterInstall script in AWS code deploy, but it is being run from the /opt/codedeploy-agent/ dir instead of my app directory.

This is how appspec.yml file looks like:

version: 0.0

os: linux

files:
  - source: /
    destination: /tmp/epub

hooks:
  AfterInstall:
    - location: server/install-packages.sh
      runas: root

As you can see it's a basic example.

Now, the bash script looks like this:

#!/bin/bash
npm install

I just want to npm install and that's it.

Unfortunately I'm getting the error:

LifecycleEvent - AfterInstall
Script - server/install-packages.sh
[stderr]npm ERR! install Couldn't read dependencies
[stderr]npm ERR! Linux 3.13.0-48-generic
[stderr]npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install"
[stderr]npm ERR! node v4.2.1
[stderr]npm ERR! npm  v2.14.7
[stderr]npm ERR! path /opt/codedeploy-agent/package.json
[stderr]npm ERR! code ENOPACKAGEJSON
[stderr]npm ERR! errno -2
[stderr]npm ERR! syscall open
[stderr]
[stderr]npm ERR! package.json ENOENT: no such file or directory, open '/opt/codedeploy-agent/package.json'
[stderr]npm ERR! package.json This is most likely not a problem with npm itself.
[stderr]npm ERR! package.json npm can't find a package.json file in your current directory.
[stderr]
[stderr]npm ERR! Please include the following file with any support request:
[stderr]npm ERR!     /opt/codedeploy-agent/npm-debug.log

I was trying different appspec.yml configs like adding runas or adding "/" at the beginning of the location path. All the time it's trying to run from /opt/codedeoploy-agent/ directory.

In desperation, I've set absolute path to the script, but then I got :

Script does not exist at specified location: /tmp/epub/server/install-packages.sh

It's really annoying as I'm doing everything according to docs, but probably I'm missing something very very small !

Thanks

Answer 1

Ok,

So I've found out, that codedeoloy-agent is running AfterInstall (and probably all the other steps) from the temporary directory created by the agent on deploy instance, so in my case I had to modify the bash script by cd-ing to the proper directory:

#!/bin/bash
cd /tmp/epub/server/
npm install