match_resources.sh

#!/bin/bash
set -euo pipefail
#set -x
IFS=$'\n\t'

DIRNAME=$(dirname $0)

if [ "$#" -lt 1 ]; then
  echo "Usage: `basename $0` <context> [<namespace>]"
  exit 1
fi

tempfile=$(mktemp)
function finish {
    rm -rf ${tempfile}
}
trap finish EXIT

cluster=${1}
namespace=${2:-""}
jsonpath="{range .items[*]}{.metadata.annotations.fluxcd\.io\/sync-checksum}/${cluster}/{.metadata.namespace}/{.kind}-{.metadata.name}.yaml{\"\n\"}{end}"

namespace_arg=""
if [[ ${namespace} == "_cluster" ]]; then
    types=(
        "ClusterRole"
        "ClusterRoleBinding"
        "CustomResourceDefinition"
        "MutatingWebhookConfiguration"
        "Namespace"            # Not all namespaces are created from jsonnet.
        "PodSecurityPolicy"
        "PriorityClass"
        "StorageClass"
        "ValidatingWebhookConfiguration"
    )
else
    if [[ -n ${namespace} ]]; then
        namespace_arg="-n=${namespace}"
    fi
    types=(
        "ClusterIssuer"
        "ConfigMap"
        "CronJob"
        "DaemonSet"
        "Deployment"
        "EtcdCluster"
        "Ingress"
        "Job"
        "PersistentVolumeClaim"
        "Pod"
        "PodDisruptionBudget"
        "Role"
        "RoleBinding"
        #"Secret"           # Not included in repository
        "Service"
        "ServiceAccount"
        "StatefulSet"
        "VerticalPodAutoscaler"
    )

fi

# ignoring resources managed by GKE
ignorelabels="kubernetes.io/bootstrapping!=rbac-defaults,!addonmanager.kubernetes.io/mode"

for type in ${types[@]}; do
    hasType=$(kubectl get ${type} --context ${cluster} -l ${ignorelabels} ${namespace_arg} -o=jsonpath='{.items}' 2>&1)
    if [ "${hasType}" != "[]" ]; then
        kubectl get ${type} \
            --context ${cluster} \
            -l ${ignorelabels} \
            ${namespace_arg} \
            -o=jsonpath="${jsonpath}" | \
            sed 's/^[a-z0-9]\+/.\/flux/' | \
            sed 's/\/\//\/_cluster\//' | \
            sed 's/^\//.\//'
    fi
done > ${tempfile}

set +e
for f in $(cat ${tempfile}); do 
    look=$(find $f 2>&1)
    if [ $? -ne 0 ]; then
        echo not found: $f
    fi
done