function kns() {
    local cache="$XDG_CACHE_HOME/${FUNCNAME[0]}"

    if [ -n "$1" ]; then
        if ! kubectl get namespace -o name | grep -q "^namespace/$1\$"; then
            echo "error: no namespace exists with the name: \"$1\"" >&2
            return 1
        fi
        kubectl config set-context --current --namespace "$1" > /dev/null
    else
        if [ "${KUBECONFIG:-"$HOME/.kube/config"}" -nt "$cache" ]; then
            set -- "$(kubectl config view --minify -o jsonpath='{..namespace}')"
        else
            cat "$cache"
            return
        fi
    fi
    tee "$cache" <<< "$1"
}

function kctx() {
    local cache="$XDG_CACHE_HOME/${FUNCNAME[0]}"

    if [ -n "$1" ]; then
        kubectl config use-context "$1" > /dev/null || return
    else
        if [ "${KUBECONFIG:-"$HOME/.kube/config"}" -nt "$cache" ]; then
            set -- "$(kubectl config current-context)"
        else
            cat "$cache"
            return
        fi
    fi
    tee "$cache" <<< "$1"
}

alias kga='kubectl get "$(kubectl api-resources --verbs=list --namespaced -oname | grep -v event | paste -sd,)"'

. /usr/share/bash-completion/completions/kubectl
compalias k=kubectl \
          ka='kubectl apply --recursive -f' \
          kd='kubectl describe' \
          kdcj='kubectl describe cronjob' \
          kdcm='kubectl describe configmap' \
          kddep='kubectl describe deployment' \
          kding='kubectl describe ingress' \
          kdj='kubectl describe job' \
          kdno='kubectl describe node' \
          kdns='kubectl describe namespace' \
          kdpo='kubectl describe pod' \
          kdpvc='kubectl describe persistentvolumeclaim' \
          kdsec='kubectl describe secret' \
          kdsts='kubectl describe statefulset' \
          kdsvc='kubectl describe service' \
          kex='kubectl exec -i -t' \
          kg='kubectl get' \
          kgall='kubectl get --all-namespaces' \
          kgalloname='kubectl get --all-namespaces -o name' \
          kgallowide='kubectl get --all-namespaces -o wide' \
          kgalloyaml='kubectl get --all-namespaces -o yaml' \
          kgcj='kubectl get cronjob' \
          kgcjall='kubectl get cronjob --all-namespaces' \
          kgcjalloname='kubectl get cronjob --all-namespaces -o name' \
          kgcjallowide='kubectl get cronjob --all-namespaces -o wide' \
          kgcjalloyaml='kubectl get cronjob --all-namespaces -o yaml' \
          kgcjoname='kubectl get cronjob -o name' \
          kgcjowide='kubectl get cronjob -o wide' \
          kgcjoyaml='kubectl get cronjob -o yaml' \
          kgcm='kubectl get configmap' \
          kgcmall='kubectl get configmap --all-namespaces' \
          kgcmalloname='kubectl get configmap --all-namespaces -o name' \
          kgcmallowide='kubectl get configmap --all-namespaces -o wide' \
          kgcmalloyaml='kubectl get configmap --all-namespaces -o yaml' \
          kgcmoname='kubectl get configmap -o name' \
          kgcmowide='kubectl get configmap -o wide' \
          kgcmoyaml='kubectl get configmap -o yaml' \
          kgdep='kubectl get deployment' \
          kgdepall='kubectl get deployment --all-namespaces' \
          kgdepalloname='kubectl get deployment --all-namespaces -o name' \
          kgdepallowide='kubectl get deployment --all-namespaces -o wide' \
          kgdepalloyaml='kubectl get deployment --all-namespaces -o yaml' \
          kgdeponame='kubectl get deployment -o name' \
          kgdepowide='kubectl get deployment -o wide' \
          kgdepoyaml='kubectl get deployment -o yaml' \
          kging='kubectl get ingress' \
          kgingall='kubectl get ingress --all-namespaces' \
          kgingalloname='kubectl get ingress --all-namespaces -o name' \
          kgingallowide='kubectl get ingress --all-namespaces -o wide' \
          kgingalloyaml='kubectl get ingress --all-namespaces -o yaml' \
          kgingoname='kubectl get ingress -o name' \
          kgingowide='kubectl get ingress -o wide' \
          kgingoyaml='kubectl get ingress -o yaml' \
          kgj='kubectl get job' \
          kgjall='kubectl get job --all-namespaces' \
          kgjalloname='kubectl get job --all-namespaces -o name' \
          kgjallowide='kubectl get job --all-namespaces -o wide' \
          kgjalloyaml='kubectl get job --all-namespaces -o yaml' \
          kgjoname='kubectl get job -o name' \
          kgjowide='kubectl get job -o wide' \
          kgjoyaml='kubectl get job -o yaml' \
          kgno='kubectl get node' \
          kgns='kubectl get namespace' \
          kgnsoname='kubectl get namespace -o name' \
          kgnsowide='kubectl get namespace -o wide' \
          kgnsoyaml='kubectl get namespace -o yaml' \
          kgoname='kubectl get -o name' \
          kgowide='kubectl get -o wide' \
          kgoyaml='kubectl get -o yaml' \
          kgpo='kubectl get pod' \
          kgpoall='kubectl get pod --all-namespaces' \
          kgpoalloname='kubectl get pod --all-namespaces -o name' \
          kgpoallowide='kubectl get pod --all-namespaces -o wide' \
          kgpoalloyaml='kubectl get pod --all-namespaces -o yaml' \
          kgpooname='kubectl get pod -o name' \
          kgpoowide='kubectl get pod -o wide' \
          kgpooyaml='kubectl get pod -o yaml' \
          kgpvc='kubectl get persistentvolumeclaim' \
          kgpvcall='kubectl get persistentvolumeclaim --all-namespaces' \
          kgpvcalloname='kubectl get persistentvolumeclaim --all-namespaces -o name' \
          kgpvcallowide='kubectl get persistentvolumeclaim --all-namespaces -o wide' \
          kgpvcalloyaml='kubectl get persistentvolumeclaim --all-namespaces -o yaml' \
          kgpvconame='kubectl get persistentvolumeclaim -o name' \
          kgpvcowide='kubectl get persistentvolumeclaim -o wide' \
          kgpvcoyaml='kubectl get persistentvolumeclaim -o yaml' \
          kgsec='kubectl get secret' \
          kgsecall='kubectl get secret --all-namespaces' \
          kgsecalloname='kubectl get secret --all-namespaces -o name' \
          kgsecallowide='kubectl get secret --all-namespaces -o wide' \
          kgsecalloyaml='kubectl get secret --all-namespaces -o yaml' \
          kgseconame='kubectl get secret -o name' \
          kgsecowide='kubectl get secret -o wide' \
          kgsecoyaml='kubectl get secret -o yaml' \
          kgsts='kubectl get statefulset' \
          kgstsall='kubectl get statefulset --all-namespaces' \
          kgstsalloname='kubectl get statefulset --all-namespaces -o name' \
          kgstsallowide='kubectl get statefulset --all-namespaces -o wide' \
          kgstsalloyaml='kubectl get statefulset --all-namespaces -o yaml' \
          kgstsoname='kubectl get statefulset -o name' \
          kgstsowide='kubectl get statefulset -o wide' \
          kgstsoyaml='kubectl get statefulset -o yaml' \
          kgsvc='kubectl get service' \
          kgsvcall='kubectl get service --all-namespaces' \
          kgsvcalloname='kubectl get service --all-namespaces -o name' \
          kgsvcallowide='kubectl get service --all-namespaces -o wide' \
          kgsvcalloyaml='kubectl get service --all-namespaces -o yaml' \
          kgsvconame='kubectl get service -o name' \
          kgsvcowide='kubectl get service -o wide' \
          kgsvcoyaml='kubectl get service -o yaml' \
          klo='kubectl logs -f' \
          kpf='kubectl port-forward' \
          krm='kubectl delete' \
          krmcj='kubectl delete cronjob' \
          krmcm='kubectl delete configmap' \
          krmdep='kubectl delete deployment' \
          krming='kubectl delete ingress' \
          krmj='kubectl delete job' \
          krmns='kubectl delete namespace' \
          krmpo='kubectl delete pod' \
          krmpvc='kubectl delete persistentvolumeclaim' \
          krmsec='kubectl delete secret' \
          krmsts='kubectl delete statefulset' \
          krmsvc='kubectl delete service'