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Add initial docs on k8s healthchecks #775

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@planetf1 planetf1 commented May 18, 2023

Draft doc on api healthchecks

Signed-off-by: Nigel Jones <nigel.l.jones+git@gmail.com>
Signed-off-by: Nigel Jones <nigel.l.jones+git@gmail.com>
…r status

Signed-off-by: Nigel Jones <nigel.l.jones+git@gmail.com>
@planetf1 planetf1 marked this pull request as ready for review May 19, 2023 10:00
Signed-off-by: Nigel Jones <nigel.l.jones+git@gmail.com>
@planetf1 planetf1 marked this pull request as draft May 19, 2023 10:10
@planetf1 planetf1 marked this pull request as ready for review June 29, 2023 09:53
@planetf1 planetf1 requested review from mandy-chessell, lpalashevski and juergenhemelt and removed request for mandy-chessell and cmgrote June 29, 2023 09:53
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Hopefully this doc contribution is useful - if it looks ok, please consider merging :-)

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Useful content - just need to correct calls away from deprecated REST API calls.

### Platform
This checks if the *platform* is available.

#### Platform is not running
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This call is deprecated. Should be https://44623abc-eu-gb.lb.appdomain.cloud:9443/open-metadata/platform-services/users/admin/server-platform/origin


#### Platform is not running
➜ ~ curl -k -X GET --connect-timeout 5 --max-time 5 "https://44623abc-eu-gb.lb.appdomain.cloud:9443/open-metadata/admin-services/users/admin/server-origin"
Egeria OMAG Server Platform (version 4.1-SNAPSHOT)
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I am not sure how the platform returns a version if it is not running.

Egeria OMAG Server Platform (version 4.1-SNAPSHOT)

#### Platform is running
➜ ~ http --verify=no --pretty=format GET "https://44623abc-eu-gb.lb.appdomain.cloud:9443/open-metadata/admin-services/users/admin/server-origin"
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Again - deprecated request

This API call was introduced in [release 3.4](/release-notes/3-4.md)

#### Server is not known
```
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This call indicates whether the server is running or not - the call to determine whether the server is known on the platform is {baseURL}/open-metadata/platform-services/users/{user}/server-platform/servers/{serverName}/is-known

```
#### No permission for api call
```
➜ ~ http --verify=no --pretty=format GET "https://44623abc-eu-gb.lb.appdomain.cloud:9443/open-metadata/admin-services/users/admin/servers/cocoMDS5/instance/status"
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This call is deprecated - should use the platform services request {baseURL}/open-metadata/platform-services/users/{user}/server-platform/servers/{serverName}/instance/status

}
```
### Server is available
```
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There is also a simpler call to test if the server is active ... {baseURL}/open-metadata/platform-services/users/{user}/server-platform/servers/{serverName}/is-active


For example
```
curl -k -o - -X GET --connect-timeout 5 --max-time 5 "https://44623abc-eu-gb.lb.appdomain.cloud:9443/open-metadata/admin-services/users/admin/servers/cocoMDS5/instance/status" | grep '.*\"relatedHTTPCode\": 200'
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Update for latest request

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Thanks for the review comments. will try and propose an update

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2 participants