Hacky fix for weaveworks/weave#2797

Dockerfile

FROM mirror-hub.docker.tech.lastmile.com/alpine:3.5

RUN apk add --no-cache curl jq

RUN curl -o /usr/local/bin/kubectl https://storage.googleapis.com/kubernetes-release/release/v1.5.3/bin/linux/amd64/kubectl && chmod +x /usr/local/bin/kubectl

COPY rmpeers /

CMD ["/rmpeers"]

rmpeers

#!/bin/sh

set -e
set -u
set -x
# Ensure that a failure to reach the API server short-circuits the reconciliation loop
set -o pipefail

while true; do
  curl -H "Accept: application/json" http://localhost:6784/report | jq -r .IPAM.Entries[].Nickname > /tmp/nicknames
  kubectl get node -o custom-columns=name:.metadata.name --no-headers > /tmp/node-names
  grep -v -f /tmp/node-names /tmp/nicknames | xargs -n 1 -I '{}' curl -H "Accept: application/json" -X DELETE 'http://localhost:6784/peer/{}'
  sleep 60
done

weave-net-rmpeers.yaml

---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: weave-net-rmpeers
  namespace: kube-system
spec:
  replicas: 1
  strategy:
    rollingUpdate:
      maxSurge: 0
      maxUnavailable: 1
  template:
    metadata:
      labels:
        app: weave-net-rmpeers
    spec:
      containers:
      - name: rmpeers
        image: hub.docker.tech.lastmile.com/mikebryant/rmpeers:v6
        resources:
          requests:
            cpu: "0.01"
            memory: "20Mi"
          limits:
            cpu: "0.1"
            memory: "20Mi"
        volumeMounts:
        - name: fence
          mountPath: /unused
      hostNetwork: true
      volumes:
      - name: fence
        persistentVolumeClaim:
          claimName: weave-net-rmpeers-fence
---
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: weave-net-rmpeers-fence
  namespace: kube-system
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 10Gi