Installing pip package through .ebextensions - amazon-web-services

Question

I am having trouble installing the package psycopg2 through ebextensions.
00_software.config
packages:
yum:
git: []
htop: []
pip:
psycopg2: []
01_setup_pg_activity.config
commands:
clone:
command: git clone https://github.com/dalibo/pg_activity.git
install_psycopg2:
command: cd pg_activity && python setup.py install
Alternatively, I have also tried this to no avail
commands:
clone:
command: git clone https://github.com/dalibo/pg_activity.git
install_psycopg2:
command: pip install psycopg2
install_psycopg2:
command: cd pg_activity && python setup.py install
The other software installs but pip packages will not
Traceback (most recent call last):
File "/usr/local/bin/pg_activity", line 4, in <module>
__import__('pkg_resources').run_script('pg-activity==1.6.1', 'pg_activity')
File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 742, in run_script
self.require(requires)[0].run_script(script_name, ns)
File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1510, in run_script
exec(script_code, namespace, namespace)
File "/usr/local/lib/python2.7/site-packages/pg_activity-1.6.1-py2.7.egg/EGG-INFO/scripts/pg_activity", line 42, in <module>
ImportError: No module named psycopg2
I have to manually go in and run sudo pip install psycopg2 for it to correctly install. How can I do this in the build process?

Answer 1

If you are using a virtual environment and EB CLI, simply creating requirements.txt will be enough while the virtual environment is active. EB CLI handles the package installations on deployment.

Answer 2

Using EB with AL2 (python env; haven't tested on RoR), successfully installed pg_activity.
For packages (only psycopg2 shown) I had
packages:
yum:
python-psycopg2: []
And the commands config file was (20_setup_pg_activity.config):
commands:
05_clone:
command: git clone https://github.com/dalibo/pg_activity.git
10_install_pg_activity:
command: cd pg_activity && python setup.py install
Following the env setup, I logged into the EB instance to check if pg_activity exists (only part shown):
ec2-user#ip-172-31-82-127 ~]$ pg_activity --help
Usage: pg_activity [options]
htop like application for PostgreSQL server activity monitoring.
Options:
--version show program's version number and exit
-U USERNAME, --username=USERNAME