topic Re: Restart Web server in case a problem is occured in Automations

Restart Web server in case a problem is occured

kanari_naiki — Tue, 09 Feb 2021 09:21:03 GMT

We want to trigger a command automatically to restart the application service (like apache) when a host doesn't make any http response. To do so, we need to execute a command on the host.

Re: Restart Web server in case a problem is occured

Radoslaw_Szulgo — Mon, 16 Oct 2023 14:07:01 GMT

You can already achieve this by configuring a auto-remediation using alerting profiles.

You can ready here : https://www.dynatrace.com/support/help/how-to-use-dynatrace/problem-detection-and-analysis/notifications-and-alerting/alerting-profiles/?_ga=2.262503557.829344646.1612702676-1422079616.1607679033&_gac=1.51943515.1612810532.Cj0KCQiA34OBBhCcARIsAG32uvOrsadiZj-2LBaze5Aa7enuwRNQA20XmK5XroVkH9WsKb6p4BtdXHoaAimlEALw_wcB

Here's a blog post for SNOW integration: https://www.dynatrace.com/news/blog/leveraging-servicenow-dynatrace-to-automate-incident-management-and-problem-remediation-2/

I'm sure you can find a lot of different materials about this.

In short:

1. Set up an alerting profile and define either a custom event or use existing one.

2. Use Ansible Tower, SNOW, Jenkins, Keptn or whatever else that works for you to trigger a desired job - e.g. restart a host XYZ

3. Bind the notification of the event to remediation action.

Re: Restart Web server in case a problem is occured

kanari_naiki — Tue, 09 Feb 2021 09:52:47 GMT

It's helpful for me, thank you!

>2. Use Ansible Tower, SNOW, Jenkins, Keptn or whatever else that works for you to trigger a desired job - e.g. restart a host XYZ

Can I use Ansible instead of Ansible Tower?

Re: Restart Web server in case a problem is occured

Radoslaw_Szulgo — Tue, 09 Feb 2021 09:55:53 GMT

No, you cannot. Ansible is just a "scripting" language and doesn't have any REST API that Dynatrace can communicate with. But you can use Jenkins or other CI/CD you have that triggers the ansible.

Re: Restart Web server in case a problem is occured

kanari_naiki — Tue, 09 Feb 2021 10:01:55 GMT

I understand. Thank you for confirmation!

I wanted to achieve self-healing without those tools.

Can I request this?

Re: Restart Web server in case a problem is occured

kanari_naiki — Mon, 16 Oct 2023 14:06:58 GMT

Hello, I found same question! :

https://community.dynatrace.com/spaces/482/dynatrace-open-qa/questions/217913/ansible-without-tower.html

Can I do this?

Re: Restart Web server in case a problem is occured

Radoslaw_Szulgo — Tue, 09 Feb 2021 10:14:29 GMT

You can request anything... but IMHO it is not feasible.

Re: Restart Web server in case a problem is occured

Radoslaw_Szulgo — Tue, 09 Feb 2021 10:16:43 GMT

That's exactly what I write - you need sth to receive REST calls from Dynatrace. No matter if this is :

- Ansible Tower

- AWX
- Ansible Python/Webhook ... whatever else..

- You can even have your own webserver that will trigger Ansible.

Re: Restart Web server in case a problem is occured

kanari_naiki — Tue, 09 Feb 2021 10:20:02 GMT

I'm sorry I didn't understand well...

Is it possible to share with me about Ansible Webhook..?

Re: Restart Web server in case a problem is occured

Radoslaw_Szulgo — Tue, 09 Feb 2021 10:23:21 GMT

https://github.com/scalr-tutorials/ansible-webhook

Re: Restart Web server in case a problem is occured

kanari_naiki — Tue, 09 Feb 2021 10:24:38 GMT

Thank you for your kindly support. I will check.