We pull our server inventory from a Netscaler. Servers that are binded to a
specific LB group is considered active and we deploy code and/or restart
services at when needed. I've written a Python script that outputs the
hosts into JSON format for Ansible to work with. This works fine except I'm
at a lost as to how I can handle multiple environments.
It could be the way I output the JSON because I query for ALL servers
across the three environments we have (stagec, stagef and prod). Do I need
a separate script for each environment in order to generate a "web" group
for a particular environment? In my "restart.yml" file, you'll notice I
intend to run the task against the server group called "webs."
A simple task to restart Apache on just the web servers:
# restart.yml
- name: Graceful restarts on web servers
hosts: webs
remote_user: deployment
sudo_user: deployment
gather_facts: no
roles:
- { role: restarts }
# roles/restarts/tasks/main.yml
- name: Restart web servers
command: sudo /usr/local/apache/bin/apachectl restart
Here's the JSON output from my inventory script:
{
"stagec-webs": {
"hosts": [
"webstage3",
"webstage4"
]
},
"stagec-perl": {
"hosts": [
"perlstage3",
"perlstage4"
]
},
"stagef-webs": {
"hosts": [
"webstage9",
"webstage5",
"webstage1",
"webstage2"
]
},
}
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