REST API - Delete Method not working for HostGroup

[scomdco]

Nagios Version: 5.5.7

When i make this call through powershell, i get a HTTP 200 response from Nagios stating that it's removing the hostgroup, but the hostgroup is still there. I've toggled the applyconfig to see if that would change this, like forcing me to do a apply config but that did not change the result. Please help!

To note i have a delete method call for hosts coming from the same computer that is working successfully. Also in the Audit Log i do not see this call ever logged, but i do see the other one get logged.

The $AutoScalingGroup variable is inputted by the user who runs the script using the Read-Host command, which has the hostgroups name as a System.String (same type that is of the values in the other script i mentioned that works successfully)

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Invoke-WebRequest -Method Delete -Uri "https://nagios.prod02.aws.local/nagiosxi/api/v1/config/hostgroup?apikey=XXXX&pretty=1&hostgroup_name=$AutoScalingGroup&alias=HostGroup&applyconfig=1"

Here's the verbose response (I have the rest of the address chopped off for the sake of the API key. it ends with "with 0-byte payload"

DeleteMethod.png

Here's the output from the call when using Invoke-WebRequest,

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Removing BRIDGE_2019.14.6720.3671 From Nagios


StatusCode        : 200
StatusDescription : OK
Content           : null
                    
RawContent        : HTTP/1.1 200 OK
                    Access-Control-Allow-Orgin: *
                    Access-Control-Allow-Methods: *
                    Keep-Alive: timeout=5, max=100
                    Connection: Keep-Alive
                    Content-Length: 5
                    Content-Type: application/json
                    Date: Sat, 0...
Forms             : {}
Headers           : {[Access-Control-Allow-Orgin, *], [Access-Control-Allow-Methods, *], [Keep-Alive, timeout=5, max=100], [Connection, Keep-Alive]...}
Images            : {}
InputFields       : {}
Links             : {}
ParsedHtml        : System.__ComObject
RawContentLength  : 5

Here's the output from the call when using Invoke-RestMethod,

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Removing BRIDGE_2019.14.6720.3671 From Nagios
null

[mbellerue]

Could you post, or PM me your Powershell script? Also, if you could run through the script and try to remove a host group, then get a system profile from Nagios and PM that to me as well, that will help.

[scomdco]

Just seeing this, i'll collect the info and send it to you shortly!

EDIT: i sent the PM with the files now.

[mbellerue]

Your script looks great, I only changed one thing. What you had looked right, and I'm going to check to see if it's supposed to work that way, but line 15 I changed the Invoke-WebRequest inside the foreach loop to be this.

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Invoke-WebRequest -Method Delete -Uri "http://nagios.prod02.aws.local/nagiosxi/api/v1/config/host/${instance}?apikey=XXXX&pretty=1&applyconfig=0"

Let me know if this works on your side as well.

[scomdco]

Thanks!

Did you happen to mean to suggest to do this with the hostgroup instead? Because the issue i'm having is only with the hostgroup API call on line 19.

When i run the command with the host name put in the suggested place in the command the output looks to prefer the placement i have in the script currently on line 15

i ran it two ways:

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Invoke-WebRequest -Method Delete -Uri "https://nagios.prod02.aws.local/nagiosxi/api/v1/config/host/POSTALA-95B2CB?apikey=XXXX&pretty=1&applyconfig=0"

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Invoke-WebRequest -Method Delete -Uri "https://nagios.prod02.aws.local/nagiosxi/api/v1/config/host/{POSTALA-95B2CB}?apikey=XXXX&pretty=1&applyconfig=0"

Here's the output:

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StatusCode        : 200
StatusDescription : OK
Content           : {
                       [b] "error": "Missing required variables",
                        "missing": [
                            "host_name"[/b]
                        ]
                    }
                    
RawContent        : HTTP/1.1 200 OK
                    Access-Control-Allow-Orgin: *
                    Access-Control-Allow-Methods: *
                    Keep-Alive: timeout=5, max=100
                    Connection: Keep-Alive
                    Content-Length: 90
                    Content-Type: application/json
                    Date: Wed, ...
Forms             : {}
Headers           : {[Access-Control-Allow-Orgin, *], [Access-Control-Allow-Methods, *], [Keep-Alive, timeout=5, max=100], [Connection, Keep-Alive]...}
Images            : {}
InputFields       : {}
Links             : {}
ParsedHtml        : System.__ComObject
RawContentLength  : 90

Here's the code as it's currently configured on Line 15: the way you see the host_name value is what the value looks like when entered from the $instance variable

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Invoke-WebRequest -Method Delete -Uri "https://nagios.prod02.aws.local/nagiosxi/api/v1/config/host?apikey=XXXX&pretty=1&host_name=POSTALA-95B2CB&applyconfig=0"

Here's the output:

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StatusCode        : 200
StatusDescription : OK
Content           : {
                        "success": "Removed POSTALA-95B2CB from the system. Config imported but not yet applied."
                    }
                    
RawContent        : HTTP/1.1 200 OK
                    Access-Control-Allow-Orgin: *
                    Access-Control-Allow-Methods: *
                    Keep-Alive: timeout=5, max=100
                    Connection: Keep-Alive
                    Content-Length: 98
                    Content-Type: application/json
                    Date: Wed, ...
Forms             : {}
Headers           : {[Access-Control-Allow-Orgin, *], [Access-Control-Allow-Methods, *], [Keep-Alive, timeout=5, max=100], [Connection, Keep-Alive]...}
Images            : {}
InputFields       : {}
Links             : {}
ParsedHtml        : System.__ComObject
RawContentLength  : 98

i ran it with the hostgroup API in case that's what you meant and that didn't work either. It's still the same output as i reported originally,

i ran the code two ways:

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Invoke-WebRequest -Method Delete -Uri "https://nagios.prod02.aws.local/nagiosxi/api/v1/config/hostgroup/SWSIM_2019.15.6954.9533?apikey=XXXX&pretty=1&alias=HostGroup&applyconfig=0"

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Invoke-WebRequest -Method Delete -Uri "https://nagios.prod02.aws.local/nagiosxi/api/v1/config/hostgroup/{SWSIM_2019.15.6954.9533}?apikey=XXXX&pretty=1&alias=HostGroup&applyconfig=0"

Here's the output:

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StatusCode        : 200
StatusDescription : OK
Content           : null
                    
RawContent        : HTTP/1.1 200 OK
                    Access-Control-Allow-Orgin: *
                    Access-Control-Allow-Methods: *
                    Content-Length: 5
                    Content-Type: application/json
                    Date: Wed, 09 Oct 2019 18:45:48 GMT
                    Server: Apache/2.4.6 (CentOS) O...
Forms             : {}
Headers           : {[Access-Control-Allow-Orgin, *], [Access-Control-Allow-Methods, *], [Content-Length, 5], [Content-Type, application/json]...}
Images            : {}
InputFields       : {}
Links             : {}
ParsedHtml        : System.__ComObject
RawContentLength  : 5

[mbellerue]

My apologies, I misread your post. When I ran the script, it had issues removing the hosts, but successfully removed the host group. What version of Powershell are you running?

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PS C:\> $PSVersionTable

Name                           Value                                                                                                         
----                           -----                                                                                                         
PSVersion                      5.1.14393.3053                                                                                                
PSEdition                      Desktop                                                                                                       
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}                                                                                       
BuildVersion                   10.0.14393.3053                                                                                               
CLRVersion                     4.0.30319.42000                                                                                               
WSManStackVersion              3.0                                                                                                           
PSRemotingProtocolVersion      2.3                                                                                                           
SerializationVersion           1.1.0.1

Can you show me the last few entries in /usr/local/nagiosxi/var/load_url.log after you try to run the Powershell script.

[scomdco]

No problem! I appreciate you looking into my post regardless,

Here's my current powershell version:

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PS C:\Scripts> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      5.1.14409.1005
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.14409.1005
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

It looks like the file hasn't had data logged in it since last year,

load_url.png

Here's what it logged last:

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CURL ERROR
 TIME: 2018-11-16T21:14:16+00:00
Array
(
    [url] => https://api.nagios.com/versioncheck/
    [content_type] => 
    [http_code] => 0
    [header_size] => 0
    [request_size] => 0
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 15.00112
    [namelookup_time] => 0.004115
    [connect_time] => 0
    [pretransfer_time] => 0
    [size_upload] => 0
    [size_download] => 0
    [speed_download] => 0
    [speed_upload] => 0
    [download_content_length] => -1
    [upload_content_length] => -1
    [starttransfer_time] => 0
    [redirect_time] => 0
    [certinfo] => Array
        (
        )

    [primary_ip] => 50.116.21.73 - [b]IP resolves to newvs1.nagios.com[/b]
    [primary_port] => 443
    [local_ip] => 
    [local_port] => 0
    [redirect_url] => 
)

URL:
 https://api.nagios.com/versioncheck/?product=nagiosxi&version=5.5.7&build=1542046651&stableonly=1&output=xml&met=1&k5=ba4ef84789c97177eb507b69cd0ba0ca 
 OPTIONS: 
Array
(
    [return_info] => 1
    [method] => post
    [timeout] => 15
)

END LOGENTRY

I loaded the url in my browser and i see it's possibly related to a check or something similar that would let us know if there is a newer version? Is this correct?

[scottwilkerson]

Sorry about leading you astray, the DELETE methods were fixed in XI 5.6.6 I see you are running 5.5.7

[scomdco]

No problem, i still appreciate the insight!

Are there any issues to note when upgrading versions, specifically from 5.5.* to 5.6.*? If not great, but if there's documentation on this please provide me a link to review.

[scottwilkerson]

No problem, i still appreciate the insight!

Are there any issues to note when upgrading versions, specifically from 5.5.* to 5.6.*? If not great, but if there's documentation on this please provide me a link to review.

Nope, should be straight forward
https://assets.nagios.com/downloads/nag ... ctions.pdf