Loki operator does not start upgrade from version 5.4 to 5.7

Solution Verified - Updated -

Environment

  • Red Hat OpenShift Container Platform (RHOCP)
    • 4
  • Red Hat OpenShift on AWS (ROSA)
    • 4
  • Red Hat OpenShift Dedicated (OSD)
    • 4
  • Red Hat OpenShift on Azure (ARO)
    • 4

Issue

  • Loki operator cannot be upgraded from version 5.4 to 5.7
  • The upgrade doesn't started after changing upgrade channel to the stable-5.7
  • Loki operator version 5.4 is blocking OpenShift cluster upgrade, which would required to upgrade Loki to higher version

Resolution

  • If the current installed version of Loki operator is 5.4 then it cannot be upgraded directly to 5.7. The upgrade process needs to go as per following path 5.4 -> 5.5 (stable 5.5) -> 5.6 (stable 5.6)-> 5.7 (stable 5.7)
  • Despite the skip-version update is possible the sequential upgrade is recommended.
  • The Loki operator must be deployed to the global operator group namespace openshift-operators-redhat

Root Cause

  • Loki subscription is configured with stable-5.7 and it is not supported to be upgraded directly from version 5.4

Diagnostic Steps

  • Log into cluster and check the subscription and the current version of the Loki operator
    Note: this can be done though the OCM Web UI as well.

    $ oc get subscription,installplan -n openshift-operators-redhat

NAME                                              PACKAGE         SOURCE             CHANNEL
subscription.operators.coreos.com/loki-operator   loki-operator   redhat-operators   stable-5.7

NAME                                             CSV                    APPROVAL    APPROVED
installplan.operators.coreos.com/install-27s42   loki-operator.5.4.12   Automatic   true
installplan.operators.coreos.com/install-2wlsg   loki-operator.5.4.14   Automatic   true
installplan.operators.coreos.com/install-cq7bc   loki-operator.5.4.10   Automatic   true
installplan.operators.coreos.com/install-kw6z4   loki-operator.5.4.13   Automatic   true
installplan.operators.coreos.com/install-qrqsf   loki-operator.5.4.11   Automatic   true

    $ oc get subscription/loki-operator -o yaml -n openshift-operators-redhat | grep currentCSV

currentCSV: loki-operator.5.4.14

  1. The available starting version for particular operator-index can be identified by using opm cli which can be installed by following this solution

    $ opm alpha list bundles registry.redhat.io/redhat/redhat-operator-index:v4.11 loki-operator

PACKAGE        CHANNEL     BUNDLE                REPLACES              SKIPS  SKIP RANGE         IMAGE
loki-operator  candidate   loki-operator.5.4.14                               >=5.4.0-0 <5.4.14  
loki-operator  stable      loki-operator.v5.7.0                               >=5.5.0-0 <5.7.0  
loki-operator  stable      loki-operator.v5.7.1  loki-operator.v5.7.0         >=5.5.0-0 <5.7.1   
loki-operator  stable      loki-operator.v5.7.2  loki-operator.v5.7.1         >=5.5.0-0 <5.7.2   
loki-operator  stable      loki-operator.v5.7.3  loki-operator.v5.7.2         >=5.5.0-0 <5.7.3   
loki-operator  stable-5.5  loki-operator.5.5.13                               >=5.4.0-0 <5.5.13  
loki-operator  stable-5.6  loki-operator.v5.6.1                               >=5.4.0-0 <5.6.1   
loki-operator  stable-5.6  loki-operator.v5.6.2  loki-operator.v5.6.1         >=5.4.0-0 <5.6.2   
loki-operator  stable-5.6  loki-operator.v5.6.3  loki-operator.v5.6.2         >=5.4.0-0 <5.6.3   
loki-operator  stable-5.6  loki-operator.v5.6.4  loki-operator.v5.6.3         >=5.4.0-0 <5.6.4   
loki-operator  stable-5.6  loki-operator.v5.6.5  loki-operator.v5.6.4         >=5.4.0-0 <5.6.5   
loki-operator  stable-5.6  loki-operator.v5.6.6  loki-operator.v5.6.5         >=5.4.0-0 <5.6.6   
loki-operator  stable-5.6  loki-operator.v5.6.7  loki-operator.v5.6.6         >=5.4.0-0 <5.6.7   
loki-operator  stable-5.6  loki-operator.v5.6.8  loki-operator.v5.6.7         >=5.4.0-0 <5.6.8   
loki-operator  stable-5.7  loki-operator.v5.7.0                               >=5.5.0-0 <5.7.0   <---starts from 5.5.0
loki-operator  stable-5.7  loki-operator.v5.7.1  loki-operator.v5.7.0         >=5.5.0-0 <5.7.1  
loki-operator  stable-5.7  loki-operator.v5.7.2  loki-operator.v5.7.1         >=5.5.0-0 <5.7.2   
loki-operator  stable-5.7  loki-operator.v5.7.3  loki-operator.v5.7.2         >=5.5.0-0 <5.7.3

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