Merge pull request #47879 from madhusudancs/kubefed-rbac-discovery-script

Automatic merge from submit-queue Add a spin-loop that waits for RBAC API's availability. The very first thing that kubefed does when it comes up is run RBAC API discovery. We believe this sometimes fail on new clusters and as a result causes kubefed to assume that the RBAC API doesn't exist. Therefore, we are applying this workaround for now to ensure that the RBAC API is available before running kubefed. Issue: #47737 **Release note**: ```release-note NONE ``` /assign @csbell /cc @dchen1107 /sig federation

Merge pull request #47879 from madhusudancs/kubefed-rbac-discovery-script
d73a75b4 · Kubernetes Submit Queue · GitHub · 83de1a01 · 0bf61789 · d73a75b4
Commit d73a75b4 authored Jun 22, 2017 by Kubernetes Submit Queue Committed by GitHub Jun 22, 2017
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federation-up.sh federation/cluster/federation-up.sh +12 -0

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--- a/federation/cluster/federation-up.sh
+++ b/federation/cluster/federation-up.sh
@@ -81,6 +81,18 @@ function init() {
  kube::log::status "DNS_ZONE_NAME: \"${DNS_ZONE_NAME}\", DNS_PROVIDER: \"${DNS_PROVIDER}\""
  kube::log::status "Image: \"${kube_registry}/hyperkube-amd64:${kube_version}\""

+  # The very first thing that kubefed does when it comes up is run RBAC
+  # API discovery. We believe this sometimes fail on new clusters and as
+  # a result causes kubefed to assume that the RBAC API doesn't exist.
+  # Therefore, we are applying this workaround for now to ensure that the
+  # RBAC API is available before running kubefed.
+  timeout 1m bash <<EOF
+    while [[ ! "$(${KUBE_ROOT}/cluster/kubectl.sh api-versions)" =~ "rbac.authorization.k8s.io/" ]]; do
+      kube::log::status "Waiting for rbac.authorization.k8s.io API group to appear"
+      sleep 2
+    done
+EOF
+
  # Send INT after 20m and KILL 1m after that if process is still alive.
  timeout --signal=INT --kill-after=1m 20m \
      "${KUBE_ROOT}/federation/develop/kubefed.sh" init \