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Re: BuildConfigs failedBuildsHistoryLimit and successfulBuildsHistoryLimit fields being defaulted in OpenShift v3.11 cluster





On Wed, Mar 27, 2019 at 11:58 AM Andrew Feller <afeller bandwidth com> wrote:
Using a simple documented BuildConfig, we're seeing every newly created BuildConfig resource defaulting failedBuildsHistoryLimit and successfulBuildsHistoryLimit when documentation specifies BuildConfig not having default values and honoring preserving all builds.

i'm assuming you're basing your statement on the api doc:
https://github.com/openshift/api/blob/release-3.11/build/v1/types.go#L904

(if you saw it somewhere else, please let us know).

Unfortunately that doc is wrong...  when we moved from legacy resource types to grouped resource types, we introduced a default retention of 5 for each type(successful and failed).  If you created a buildconfig via the legacy resource you got no limit, but if you create it via the grouped resource (which is the default and what everyone should be doing now), you got a default of 5 applied to your object.  If you look at the buildconfig.yaml (oc get bc/foo -o yaml) you will see that value appear because it's actually applied to your object during creation. 

you can edit the bc and delete the field to switch to no retention, or you can create your BCs with a very high retention.  I don't think you can actually create a BC w/ no retention limit, though, given how the system works.



 

My knee jerk thought was to talk with my OCP administrators to see whether nodes were configured to default aspects of specific resource types, however we didn't see anything readily within master-config.yaml file on one of the masters.

Any assistance is appreciated!
 
me me-mbp ~ $ oc version
oc v3.11.0+0cbc58b
kubernetes v1.11.0+d4cacc0
features: Basic-Auth

Server ...
openshift v3.11.43
kubernetes v1.11.0+d4cacc0 
 
me me-mbp ~ $ oc new-project ruby-sample 

me me-mbp ~ $ cat << EOF | oc apply -f - -n ruby-sample
> kind: "BuildConfig"
> apiVersion: "v1"
> metadata:
>   name: "ruby-sample-build" 
> spec:
>   runPolicy: "Serial" 
>   triggers: []
>   source: 
>     git:
>       uri: "https://github.com/openshift/ruby-hello-world"
>   strategy: 
>     sourceStrategy:
>       from:
>         kind: "ImageStreamTag"
>         name: "ruby-20-centos7:latest"
> EOF
buildconfig.build.openshift.io/ruby-sample-build created 

me me-mbp ~ $ oc get -o yaml bc ruby-sample-build
apiVersion: build.openshift.io/v1
kind: BuildConfig
metadata:
  annotations:
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"build.openshift.io/v1","kind":"BuildConfig","metadata":{"annotations":{},"name":"ruby-sample-build","namespace":"ruby-sample"},"spec":{"runPolicy":"Serial","source":{"git":{"uri":"https://github.com/openshift/ruby-hello-world"}},"strategy":{"sourceStrategy":{"from":{"kind":"ImageStreamTag","name":"ruby-20-centos7:latest"}}},"triggers":[]}}
  creationTimestamp: 2019-03-27T15:49:28Z
  name: ruby-sample-build
  namespace: ruby-sample
  resourceVersion: "268668901"
  selfLink: /apis/build.openshift.io/v1/namespaces/ruby-sample/buildconfigs/ruby-sample-build
  uid: e7a55eaa-50a7-11e9-982c-001a4aa86606
spec:
  failedBuildsHistoryLimit: 5
  nodeSelector: null
  output: {}
  postCommit: {}
  resources: {}
  runPolicy: Serial
  source:
    git:
      uri: https://github.com/openshift/ruby-hello-world
    type: Git
  strategy:
    sourceStrategy:
      from:
        kind: ImageStreamTag
        name: ruby-20-centos7:latest
    type: Source
  successfulBuildsHistoryLimit: 5
  triggers: []
status:
  lastVersion: 0


--

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Andy Feller    Sr DevOps Engineer

900 Main Campus Drive, Suite 500, Raleigh, NC 27606



e: afeller bandwidth com

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