I'm learning Vagrant and Ansible, I'm trying to setup a local development environment for a basic flask app in ubuntu20.04 with Nginx.
my vagrantfile looks like this:
Vagrant.configure("2") do |config|
config.vm.define :ubuntuserver do | ubuntuserver |
ubuntuserver.vm.box = "bento/ubuntu-20.04"
ubuntuserver.vm.hostname = "ubuntuserver"
ubuntuserver.vm.provision :ansible do | ansible |
ansible.playbook = "development.yml"
end
ubuntuserver.vm.network "private_network", ip:"10.11.1.105"
ubuntuserver.vm.network "forwarded_port", guest: 80, host: 8080
ubuntuserver.vm.network "public_network", bridge: "en1: Wi-Fi (AirPort)"
ubuntuserver.vm.provider :virtualbox do |vb|
vb.memory = "1024"
end
ubuntuserver.vm.synced_folder "./shared", "/var/www"
end
end
my ansible-playbook like so:
-
name: local env
hosts: ubuntuserver
tasks:
- name: update and upgrade apt packages
become: yes
apt:
upgrade: yes
update_cache: yes
- name: install software properties common
apt:
name: software-properties-common
state: present
- name: install nginx
become: yes
apt:
name: nginx
state: present
update_cache: yes
- name: ufw allow http
become: yes
community.general.ufw:
rule: allow
name: "Nginx HTTP"
- name: installing packages for python env
become: yes
apt:
name:
- python3-pip
- python3-dev
- build-essential
- libssl-dev
- libffi-dev
- python3-setuptools
- python3-venv
update_cache: yes
- name: Create app directory if it does not exist
ansible.builtin.file:
path: /var/www/app
state: directory
mode: '0774'
- name: Install virtualenv via pip
become: yes
pip:
name: virtualenv
executable: pip3
- name: Set python virual env
command:
cmd: virtualenv /var/www/app/ -p python3
creates: "/var/www/app/"
- name: Install requirements
pip:
requirements: /var/www/requirements.txt
virtualenv: /var/www/app/appenv
virtualenv_python: python3
My playbook fails at the next task with error:
- name: Activate /var/www/app/appenv
become: yes
command: source /var/www/app/appenv/bin/activate
fatal: [ubuntuserver]: FAILED! => {"changed": false, "cmd": "source /var/www/app/appenv/bin/activate", "msg": "[Errno 2] No such file or directory: b'source'", "rc": 2}
Rest of the playbook
- name: ufw allow 5000
become: yes
community.general.ufw:
rule: allow
to_port: 5000
- name: Run app
command: python3 /var/www/app/appenv/app.py
From what I understand from this thread, The "source" command must be used from inside the vagrant machine. (I tried solutions from the thread but couldn't get it to work) If I ssh into the vagrant machine and execute the three last commands of my playbook manually:
source /var/www/app/appenv/bin/activate
sudo ufw allow 5000
python3 /var/www/app/appenv/app.py
my basic flask app is running on port 5000 at the IP set in the vagrantfile 10.11.1.105
My questions are:
How can I get the playbook to work and not have to ssh into the machine to accomplish the same?
Is my approach even correct, knowing that my end goal is to replicate in the vagrant machine a similar environment to what would be the production environment and develop the flask app from my local machine in the synced folder?
to give a maximum of information, if one wants to reproduce this. I also have a shared/app/appenv/app.py file containing the basic flask app
from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "<h1 style='color:blue'>Hello There!</h1>"
if __name__ == "__main__":
app.run(host='0.0.0.0')
and shared/requirements.txt file
wheel
uwsgi
flask
