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UPSTREAM: 89885: allow to read openstack cloud provider config from a…
… secret This patch brings back the downstream changes that were introduced to allow reading openstack cloud provider config from a secret. They are available in release-4.4, but were reverted in master with openshift/origin#24719 This change includes: - Ability to read metadata values for kubelet. Since the service does not have access to the secret to read the configuration, but it needs data to download (e.g. hostname or flavor), we are trying to get it from the metadata server. - Deprecation of kubeConfig parameter. Now we read the file that was provided with --kubeconfig option. Origin-commit: f95edc26155a29769b3c5b80c03755a01a87b5fc UPSTREAM: 89885: legacy-cloud-provider/openstack: include / prefix in instance ID output When we want to read an instance ID from the metadata service, cloud provider doesn't include "/" prefix, which is required for successful parsing of provider the ID later. This commit adds the missing "/" prefix to the output. UPSTREAM: 89885: SQUASH: Fix Cinder provisioning crashing on nil cloud provider OpenStack cloud provider must not use nil when provisioning a Cinder volume. UPSTREAM: 89885: SQUASH: Report OpenStack cloud initialization errors openshift-rebase(v1.24):source=dbe70e455ee UPSTREAM: <carry>: Set informer for openstack Set informer for the openstack cloud provider to ensure it is properly initialized when reading config from a secret. Upstream 89885 was closed in favor of 96750. Co-authored-by: Hemant Kumar <hekumar@redhat.com> openshift-rebase(v1.24):source=d7ecbd903e2 UPSTREAM: 89885: SQUASH: Retry fetching clouds.conf The OpenStack secret is not guaranteed to be present at the time kube-controller-manager is initialised. Co-authored-by: Martin André <m.andre@redhat.com> Co-authored-by: Pierre Prinetti <pierreprinetti@redhat.com> openshift-rebase(v1.24):source=8bc9dd29ef0 UPSTREAM: 89885: Fix panic in openstack.InstanceExistsByProviderID() ... when provider is uninitialised. This is a fix to downstream-only code which was originally proposed upstream as kubernetes#89885 but did not merge. It is therefore not relevant upstream. Given that we will replace the openstack legacy cloud provider in 4.12 we will not re-propose kubernetes#89885 or this fix to it. Causes all openstack.Instances() methods which require more than the local metadata service to return NotImplemented instead of crashing if the provider is not initialised.
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