Error testing lock: daemonsets.extensions \"kube-system\" not found" about kured

[bboreham]

From your logs, and this line in the code, it is trying to access a DaemonSet called kube-system in the kured namespace.

Which suggests you have some parameters the wrong way round?

[garethmorris78]

error was due to me passing in the defaults within the args instead of leaving them commented out.

i.e.
Yaml causing the error:

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kured            
  namespace: kube-system
spec:
  selector:
    matchLabels:
      name: kured
  updateStrategy:
   type: RollingUpdate
  template:
    metadata:
      labels:
        name: kured
    spec:
      serviceAccountName: kured
      containers:
        - name: kured
          image: quay.io/weaveworks/kured:1.0.0
          imagePullPolicy: IfNotPresent
          command:
            - /usr/bin/kured
          args:
#            - --alert-filter-regexp=^RebootRequired$
            - --ds-name=kured
            - --ds-namespace=kube-system
            - --lock-annotation=weave.works/kured-node-lock
            - --period=24h
#            - --prometheus-url=http://prometheus.monitoring.svc.cluster.local
            - --reboot-sentinel=/var/run/reboot-required
            - --slack-hook-url=https://hooks.slack.com/[redacted]
            - --slack-username=dev
# NO USER SERVICEABLE PARTS BEYOND THIS POINT
          env:
            # Pass in the name of the node on which this pod is scheduled
            # for use with drain/uncordon operations and lock acquisition
            - name: KURED_NODE_ID
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
          volumeMounts:
            # Needed for two purposes:
            # * Testing for the existence of /var/run/reboot-required
            # * Accessing /var/run/dbus/system_bus_socket to effect reboot
            - name: hostrun
              mountPath: /var/run
      restartPolicy: Always
      volumes:
        - name: hostrun
          hostPath:
            path: /var/run

comment out defaults and now working yaml:

apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: kured            
  namespace: kube-system
spec:
  selector:
    matchLabels:
      name: kured
  updateStrategy:
   type: RollingUpdate
  template:
    metadata:
      labels:
        name: kured
    spec:
      serviceAccountName: kured
      containers:
        - name: kured
          image: quay.io/weaveworks/kured:1.0.0
          imagePullPolicy: IfNotPresent
          command:
            - /usr/bin/kured
          args:
#           - --alert-filter-regexp=^RebootRequired$
#           - --ds-name=kured
#           - --ds-namespace=kube-system
#           - --lock-annotation=weave.works/kured-node-lock
            - --period=24h
#           - --prometheus-url=http://prometheus.monitoring.svc.cluster.local
#           - --reboot-sentinel=/var/run/reboot-required
            - --slack-hook-url=https://hooks.slack.com/[redacted]
            - --slack-username=dev
# NO USER SERVICEABLE PARTS BEYOND THIS POINT
          env:
            # Pass in the name of the node on which this pod is scheduled
            # for use with drain/uncordon operations and lock acquisition
            - name: KURED_NODE_ID
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
          volumeMounts:
            # Needed for two purposes:
            # * Testing for the existence of /var/run/reboot-required
            # * Accessing /var/run/dbus/system_bus_socket to effect reboot
            - name: hostrun
              mountPath: /var/run
      restartPolicy: Always
      volumes:
        - name: hostrun
          hostPath:
            path: /var/run

[awh]

Fixed by #5.