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---
###############################################################################
# Pre upgrade checks for known data problems, if this playbook fails you should
# contact support. If you're not supported contact users@lists.openshift.com
#
# oc_objectvalidator provides these two checks
# 1 - SDN Data issues, never seen in the wild but known possible due to code audits
# https://github.com/openshift/origin/issues/12697
# 2 - Namespace protections, https://bugzilla.redhat.com/show_bug.cgi?id=1428934
#
###############################################################################
- name: Verify 3.5 specific upgrade checks
hosts: oo_first_master
roles:
- { role: lib_openshift }
tasks:
- name: Check for invalid namespaces and SDN errors
oc_objectvalidator:
# What's all this PetSet business about?
#
# 'PetSets' were ALPHA resources in Kube <= 3.4. In >= 3.5 they are
# no longer supported. The BETA resource 'StatefulSets' replaces
# them. We can't migrate clients PetSets to
# StatefulSets. Additionally, Red Hat has never officially supported
# these resource types. Sorry users, but if you were using
# unsupported resources from the Kube documentation then we can't
# help you at this time.
#
# Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1428229
- name: Check if legacy PetSets exist
oc_obj:
state: list
all_namespaces: true
kind: petsets
register: l_do_petsets_exist
- name: Fail on unsupported resource migration 'PetSets'
fail:
msg: >
PetSet objects were detected in your cluster. These are an
Alpha feature in upstream Kubernetes 1.4 and are not supported
by Red Hat. In Kubernetes 1.5, they are replaced by the Beta
feature StatefulSets. Red Hat currently does not offer support
for either PetSets or StatefulSets.
Automatically migrating PetSets to StatefulSets in OpenShift
Container Platform (OCP) 3.5 is not supported. See the
Kubernetes "Upgrading from PetSets to StatefulSets"
documentation for additional information:
https://kubernetes.io/docs/tasks/manage-stateful-set/upgrade-pet-set-to-stateful-set/
PetSets MUST be removed before upgrading to OCP 3.5. Red Hat
strongly recommends reading the above referenced documentation
in its entirety before taking any destructive actions.
If you want to simply remove all PetSets without manually
migrating to StatefulSets, run this command as a user with
cluster-admin privileges:
$ oc get petsets --all-namespaces -o yaml | oc delete -f - --cascade=false
when:
# Search did not fail, valid resource type found
- l_do_petsets_exist.results.returncode == 0
# Items do exist in the search results
- l_do_petsets_exist.results.results.0['items'] | length > 0
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