function kns() {
    local cache="$XDG_CACHE_HOME/${FUNCNAME[0]}"
    local conf="${KUBECONFIG:-"$HOME/.kube/config"}"

    if [ "$1" == - ]; then
        echo "not implemented" >&2
        return 1
    elif [ -n "$1" ]; then
        if ! kubectl get namespace -oname | grep -q "^namespace/$1\$"; then
            echo "error: no namespace exists with the name: \"$1\"" >&2
            return 1
        fi
        kubectl config set-context --current --namespace "$1" > /dev/null
    else
        if [ "$conf" -nt "$cache" ]; then
            set -- "$(kubectl config view --minify -ojsonpath='{..namespace}')"
        else
            cat "$cache"
            return
        fi
    fi
    tee "$cache" <<< "$1"
}

function kctx() {
    local cache="$XDG_CACHE_HOME/${FUNCNAME[0]}"
    local conf="${KUBECONFIG:-"$HOME/.kube/config"}"

    if [ "$1" == - ]; then
        echo "not implemented" >&2
        return 1
    elif [ -n "$1" ]; then
        kubectl config use-context "$1" > /dev/null || return
    else
        if [ "$conf" -nt "$cache" ]; then
            set -- "$(kubectl config current-context)"
        else
            cat "$cache"
            return
        fi
    fi
    tee "$cache" <<< "$1"
}

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

. /usr/share/bash-completion/completions/kubectl
compalias k=kubectl \
          ka='kubectl apply --recursive -f' \
          kd='kubectl describe' \
          kex='kubectl exec -i -t' \
          kg='kubectl get' \
          kgno='kubectl get node' \
          klo='kubectl logs -f' \
          kpf='kubectl port-forward' \
          krm='kubectl delete' \

function _k8salias() {
    local name short

    for a in "$@"; do
        name="${a#*=}" short="${a%%=*}"
        compalias "kd${short}=kubectl describe $name" \
                  "kd${short}alloname=kubectl describe $name --all-namespaces -oname" \
                  "kd${short}allowide=kubectl describe $name --all-namespaces -owide" \
                  "kd${short}alloyaml=kubectl describe $name --all-namespaces -oyaml" \
                  "kd${short}oname=kubectl describe $name -oname" \
                  "kd${short}owide=kubectl describe $name -owide" \
                  "kd${short}oyaml=kubectl describe $name -oyaml" \
                  "kg${short}=kubectl get $name" \
                  "kg${short}alloname=kubectl get $name --all-namespaces -oname" \
                  "kg${short}allowide=kubectl get $name --all-namespaces -owide" \
                  "kg${short}alloyaml=kubectl get $name --all-namespaces -oyaml" \
                  "kg${short}oname=kubectl get $name -oname" \
                  "kg${short}owide=kubectl get $name -owide" \
                  "kg${short}oyaml=kubectl get $name -oyaml" \
                  "krm${short}=kubectl delete $name" \
                  "krm${short}alloname=kubectl delete $name --all-namespaces -oname" \
                  "krm${short}allowide=kubectl delete $name --all-namespaces -owide" \
                  "krm${short}alloyaml=kubectl delete $name --all-namespaces -oyaml" \
                  "krm${short}oname=kubectl delete $name -oname" \
                  "krm${short}owide=kubectl delete $name -owide" \
                  "krm${short}oyaml=kubectl delete $name -oyaml"
    done
}
_k8salias cj=cronjob \
          cm=configmap \
          dep=deployment \
          ing=ingress \
          j=job \
          ns=namespace \
          po=pod \
          pvc=persistentvolumeclaim \
          pv=persistentvolume \
          sec=secret \
          sts=statefulset \
          svc=service
unset -f _k8salias