weave-net scripts compatible with k8sh. from https://github.com/weaveworks/weave/issues/3659#issuecomment-514773808

bump-weave.sh

#!/usr/bin/env bash 

# takes a weave pod name and, after confirmation, removes the
# weave db and deletes the pod

WP=$1
REPLY=$2

if [[ ! $WP =~ weave-[a-z0-9]+ ]]
then
    echo "Usage: $0 weave-podname"
    echo "Will show details of the node hosting the weave pod and then"
    echo "if confirmed, will remove the weave db and delete the weave pod"
    exit 1
fi

KUBECTL_CONTEXT=${KUBECTL_CONTEXT-"minikube"}
KUBECTL_NAMESPACE=${KUBECTL_NAMESPACE-"kube-system"}
alias kubectl="kubectl --context=${KUBECTL_CONTEXT} --namespace=${KUBECTL_NAMESPACE}"

NODE=$( kubectl get pod $WP -o wide --no-headers | awk '{ print $7 }' )
echo --------------------------------------------
echo "Weave pod $WP found on $NODE"
echo "Houses the following pods:"
kubectl describe node $NODE | sed -n -e '/^  ---------/,/Allocated/p' | sed -e '1d' -e '$d' | awk '{ print $1 "\t" $2 }'
echo --------------------------------------------
if [[ -z $REPLY ]]; then
  read -p "Enter 'YES' to bump this weave pod: "
fi
if [[ $REPLY != YES ]]
then
    echo "No action taken"
    exit
else
    echo "Deleting db file..."
    kubectl exec -ti $WP -c weave -- rm /weavedb/weave-netdata.db
    kubectl delete pod $WP
fi

verify-weave.sh

#!/usr/bin/env bash

#
# This script will iterate over all weave pods and
# determine if they are all consistent or not
#

if [[ $* ]]
then
    echo "usage: $0"
    echo "This script will pull the 'ipam status' data from each node in the"
    echo "current cluster and verify if they are all consistent.  If they are not"
    echo "consistent then the different groups of pods will be shown"
    exit
fi

KUBECTL_CONTEXT=${KUBECTL_CONTEXT-"minikube"}
KUBECTL_NAMESPACE=${KUBECTL_NAMESPACE-"kube-system"}
alias kubectl="kubectl --context=${KUBECTL_CONTEXT} --namespace=${KUBECTL_NAMESPACE}"

# Get a list of all weave pods
echo "Gathering list of weave pods..."
WEAVEPODS=$( kubectl get pod | grep weave-net | awk '{ print $1 }' )
WEAVECOUNT=$( echo "$WEAVEPODS" | wc -l )
echo "Found $WEAVECOUNT weave pods."

# Checksums will hold the list of weave pods that sum to a particular checksum value
# Unreachable will hold the list of unreachable nodes for a given checksum value
declare -A CHECKSUMS
declare -A UNREACHABLE

# Compute the checksum and unreachables for each weave pod and put the name in the appropriate list
echo "Computing status checksum for weave pods..."
for wp in $WEAVEPODS
do
    echo -n "."
    # Peerdata contains the (sanitized) output from 'status ipam' such that it should be comparable between nodes
    # Unreach contains the list of unreachables from the status output
    # Peersum is the resulting checksum of the peerdata from above
    PEERDATA=$( kubectl exec $wp -c weave -- ./weave --local status ipam | awk '{ print $1 "," $2 }' | sort )
    UNREACH=$( kubectl exec $wp -c weave -- ./weave --local status ipam | grep unreachable | sort )
    PEERSUM="sum$( echo "$PEERDATA" | sum | awk '{ print $1 }' )"

    if [[ ${CHECKSUMS[$PEERSUM]} ]]
    then
        CHECKSUMS[$PEERSUM]="${CHECKSUMS[$PEERSUM]} $wp"
    else
        #echo "Found new sum $PEERSUM..."
        CHECKSUMS[$PEERSUM]=$wp
    fi
    if [[ $UNREACH ]]
    then
        UNREACHABLES[$PEERSUM]="$UNREACH"
    fi
done
echo

# If there's more than one checksum for the cluster, then there is an inconsistency.
if [[ ${#CHECKSUMS[@]} -gt 1 ]]
then
    echo "Found ${#CHECKSUMS[@]} different peer lists..."
    for ps in ${!CHECKSUMS[@]}
    do
        echo
        echo "Group $ps has $( echo ${CHECKSUMS[$ps]} | wc -w ) nodes:"
        echo ${CHECKSUMS[$ps]}
        if [[ ${UNREACHABLES[$ps]} ]]
        then
            echo "The following unreachable peers exist:"
            echo ${UNREACHABLES[$ps]} | sed -e 's/\! */\n/g'
        fi
    done
else
    echo "All weave pods are consistent."
    if [[ ${UNREACHABLES[$PEERSUM]} ]]
    then
        echo "The following unreachable peers exist:"
        echo ${UNREACHABLES[$PEERSUM]} | sed -e 's/! */\n/g'
    fi
fi