Undefined How to reproduce:
Spin up OCP 4.1.0
Install Maistra 0.11 from https://github.com/Maistra/istio-operator/tree/maistra-0.11
Install knative-serving Operator from web console
See the logs of knative-serving-operator pod:
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{"level":"info","ts":1559827002.3735862,"logger":"openshift","msg":"Setting","map":"config-network","istio.sidecar.includeOutboundIPRanges":"172.30.0.0/16"}
{"level":"info","ts":1559827002.3788729,"logger":"openshift","msg":"Ensuring Istio is installed in OpenShift"}
{"level":"info","ts":1559827002.3815267,"logger":"openshift","msg":"Maistra Operator already installed"}
{"level":"info","ts":1559827002.3838506,"logger":"openshift","msg":"Installing Maistra ControlPlane"}
{"level":"info","ts":1559827002.3838696,"logger":"manifestival","msg":"Reading file","name":"deploy/resources/maistra/maistra-controlplane-0.10.0.yaml"}
{"level":"info","ts":1559827002.3929372,"logger":"manifestival","msg":"Creating","name":"istio-system/minimal-istio","type":"istio.openshift.com/v1alpha3, Kind=ControlPlane"}
{"level":"info","ts":1559827002.5135388,"logger":"manifestival","msg":"Updating","name":"/knative-serving","type":"/v1, Kind=Namespace"}
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Even though there is Maistra 0.11 installed, it won't use it and tries installing Maistra ControlPlane 0.10 in the istio-system ns.
Two pods will fail to start in istio-system:
istio-ingressgateway-d7b59588c-2n2jd 0/1 ImagePullBackOff 0 5m14s istio-pilot-bffd855c8-qlbtw 0/1 ImagePullBackOff 0 5m17s
Logs from istio-ingressgateway pod:
Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 6m42s default-scheduler Successfully assigned istio-system/istio-ingressgateway-d7b59588c-2n2jd to ip-10-0-158-79.us-west-2.compute.internal Normal Pulling 5m4s (x4 over 6m35s) kubelet, ip-10-0-158-79.us-west-2.compute.internal Pulling image "maistra/proxyv2-ubi8:0.10.0" Warning Failed 5m2s (x4 over 6m33s) kubelet, ip-10-0-158-79.us-west-2.compute.internal Failed to pull image "maistra/proxyv2-ubi8:0.10.0": rpc error: code = Unknown desc = Error reading manifest 0.10.0 in docker.io/maistra/proxyv2-ubi8: manifest unknown: manifest unknown Warning Failed 5m2s (x4 over 6m33s) kubelet, ip-10-0-158-79.us-west-2.compute.internal Error: ErrImagePull Normal BackOff 4m36s (x7 over 6m33s) kubelet, ip-10-0-158-79.us-west-2.compute.internal Back-off pulling image "maistra/proxyv2-ubi8:0.10.0" Warning Failed 85s (x21 over 6m33s) kubelet, ip-10-0-158-79.us-west-2.compute.internal Error: ImagePullBackOff
It seems that it took the original image "maistra/proxyv2-ubi8:0.11.0" and changed the version to 0.10, resulting in image "maistra/proxyv2-ubi8:0.10.0", which is not found.