Consume API from DXUIM

[Miller Echagarreta]

Hi Everyone.

With DXUIM I can consume from an API another monitoring system like Redhat's Prometheus. I understand that with DXOI I can make this a little easier, but we don't have DXOI. Redhat Ing can publish Prometheus monitoring information with an API, can I consume this information with UIM to publish alarms and dashboards in UIM?

[David Michel]

Does it has a REST API available to be polled by UIM?

[Miller Echagarreta]

Hi @David Michel yes they have an API. Any idea?

[David Michel]

UIM RESTMon starter guide
Article ID: 244146
https://knowledge.broadcom.com/external/article?articleId=244146

[Miller Echagarreta]

Hey... @David Michel is possible to use the probe rhev for monitoring the VM of Redhat Openshit Container Platform?​

[David Michel]

It does have a lot of VM metrics. 
https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/ca-unified-infrastructure-management-probes/GA/alphabetical-probe-articles/rhev-red-hat-enterprise-virtualization/rhev-metrics.html

[Matthias Gruber]

Hi!
We had the same "problem", a Prometheus monitoring our K8s and UIM as Lead-Monitoring-System.
I simply wrote a WebHook, since polling is not the right way in my point of view. I develped  a little Python-Skript which works behind a nginx-webserver and converts the webhook I receive from Prometheus and make a Alarm (via UIMRest) out of it. Thats not so tricky, and no polling. 
Since Prometheus simply sends a JSON it took only to extract the needed values and got that "alarms/create"-UIMRest satisfied. The Login an "mutlithreading" does the nginx for me.. therefore you can use any Language which is "CGI"-able :-)

cheers

Matthias

[Miller Echagarreta]

Hi Mattias how are you, thanks for this comment.
Is possible that you send me an example of this configuration? i am new with this of API and i don't know how to start.
Regards.

M.E

[Matthias Gruber]

Hi!
sure...not a beauty, but should give you an idea ... dont get messed up it will not run, because you are missing my PyToolsMG3-Lib (there is all my cypher/decyper-Stuff for passwords etc. in it, so I can not post it ^^, furthermore some shortcuts for the REST-Handling ;->)

I simply set up an nginx-Web-Server which listens at a specific port and has a fastcgi-python include
thats the simple fcgiwrap.conf
location ~* (^/prometheus)/(.+\.py)$ {
gzip off;
root /opt/UIMWebhook/lib;
auth_basic "Authentication required";
auth_basic_user_file /etc/nginx/.htpasswd;
fastcgi_pass unix:/var/run/fcgiwrap/fcgiwrap-nginx.sock;
include /etc/nginx/fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root/$2;
}

but the simple idea is, the nginx got the webhook with the json-payload and deliver it via "stdin" to the python-script, who parses the json, fetches the needed parameters for the alarm (or clear) and send a REST-alarm, quite straight forward...

cheers

Matthias

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