ansible-tower-service, Start or Stop Ansible Tower
Learn Ansible : Automation with Ansible โ All You Want to Learn
Ansible Tower is a wonderful product which help to implement a central hub for IT automation. Ansible Tower is basically a web console and REST API for underlying Ansible Engine but with more features and acts as centralised system with logging and RBAC (Role Based Access Control).
Read : How to backup and restore Ansible Tower configuration ?
As we know, Ansible Tower is a multi-component system including Ansible, Tower API, RabbitMQ, Database (managed or external) etc. And will be more complicated when you install Ansible Tower Cluster (multi-node or multi-data center clusters).
So, what if you need to stop Ansible Tower gracefully, for some reason (patching or some reason) and start components again ?
ansible-tower-service utility
Simple, Ansible Tower is coming with an utility script called ansible-tower-service and you can use it for starting/stopping/restarting the Ansible Tower system.
Also read How to Install Custom Modules in Ansible.
[root@node01-ansible ~]# ansible-tower-service -h
Ansible Tower service helper utility
Usage: /bin/ansible-tower-service {start|stop|restart|status}
[root@node01-ansible ~]# whereis ansible-tower-service
ansible-tower-service: /usr/bin/ansible-tower-service We can see the status as below.
root@node01-ansible ~]# ansible-tower-service status
Showing Tower Status
Redirecting to /bin/systemctl status rabbitmq-server.service
โ rabbitmq-server.service - RabbitMQ broker
Loaded: loaded (/usr/lib/systemd/system/rabbitmq-server.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2020-02-19 14:41:57 +08; 31min ago
Main PID: 17462 (beam.smp)
Status: "Initialized"
Tasks: 85
Memory: 9.9M
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<removed>
Redirecting to /bin/systemctl status nginx.service
โ nginx.service - The nginx HTTP and reverse proxy server
Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2020-02-19 14:48:19 +08; 25min ago
Process: 29497 ExecStart=/usr/sbin/nginx (code=exited, status=0/SUCCESS)
Process: 29495 ExecStartPre=/usr/sbin/nginx -t (code=exited, status=0/SUCCESS)
Process: 29492 ExecStartPre=/usr/bin/rm -f /run/nginx.pid (code=exited, status=0/SUCCESS)
Main PID: 29500 (nginx)
Tasks: 3
Memory: 3.3M
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<removed>
Redirecting to /bin/systemctl status supervisord.service
โ supervisord.service - Process Monitoring and Control Daemon
Loaded: loaded (/usr/lib/systemd/system/supervisord.service; enabled; vendor preset: disabled)
Active: active (running) since Wed 2020-02-19 14:48:18 +08; 25min ago
Process: 29373 ExecStart=/usr/bin/supervisord -c /etc/supervisord.conf (code=exited, status=0/SUCCESS)
Main PID: 29376 (supervisord)
Tasks: 31
Memory: 1.2G
CGroup: /system.slice/supervisord.service
โโ29376 /usr/bin/python /usr/bin/supervisord -c /etc/supervisord.conf
โโ29524 python3 /usr/bin/failure-event-handler
โโ29525 python3 /usr/bin/awx-manage run_dispatcher
โโ29526 scl enable rh-postgresql10 /var/lib/awx/venv/awx/bin/uwsgi -s /var/run/tower/u...
โโ29527 python3 /usr/bin/awx-manage runworker --only-channels websocket.*
โโ29528 python3 /var/lib/awx/venv/awx/bin/daphne -u /var/run/tower/daphne.sock awx.asg...
โโ29530 python3 /usr/bin/awx-manage run_callback_receiver
โโ29544 /bin/bash /var/tmp/sclH4YNbr
โโ29553 /var/lib/awx/venv/awx/bin/uwsgi -s /var/run/tower/uwsgi.sock --module=awx.wsgi...
โโ29554 /var/lib/awx/venv/awx/bin/uwsgi -s /var/run/tower/uwsgi.sock --module=awx.wsgi...
โโ29555 /var/lib/awx/venv/awx/bin/uwsgi -s /var/run/tower/uwsgi.sock --module=awx.wsgi...
โโ29556 /var/lib/awx/venv/awx/bin/uwsgi -s /var/run/tower/uwsgi.sock --module=awx.wsgi...
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<removed>Stop or Start Ansible Tower
Stopping, Starting or Restarting Ansible Tower using ansible-tower-service is simple and straightforward.
# ansible-tower-service stop
Stopping Tower
Redirecting to /bin/systemctl stop rabbitmq-server.service
Redirecting to /bin/systemctl stop nginx.service
Redirecting to /bin/systemctl stop supervisord.serviceOnce we done our patching or activity, start the service,
# ansible-tower-service start
Starting Tower
Redirecting to /bin/systemctl start rabbitmq-server.service
Redirecting to /bin/systemctl start nginx.service
Redirecting to /bin/systemctl start supervisord.serviceYou can also achieve the same result via standard init or distribution based service management commands but above one is an easy to use utility for Ansible Tower.
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