Listing all resources in a namespace

I ended up needing this same functionality due to failed Helm deployments that left remnants in a specific namespace. Here's a function you can put in your bash profile:

function kubectlgetall {
  for i in $(kubectl api-resources --verbs=list --namespaced -o name | grep -v "events.events.k8s.io" | grep -v "events" | sort | uniq); do
    echo "Resource:" $i
    
    if [ -z "$1" ]
    then
        kubectl get --ignore-not-found ${i}
    else
        kubectl -n ${1} get --ignore-not-found ${i}
    fi
  done
}

Usage: kubectlgetall <namespace>

Example: get all resources from the kafka namespace:

kubectlgetall kafka


This may not get all resources but it may be what someone is looking for

kubectl get all,cm,secret,ing -A

This seems to get most of the resources, prefixed with the type.

At least, it gets:

  • pod
  • service
  • daemonset
  • deployment
  • replicaset
  • statefulset
  • job
  • configmap
  • secret
  • ingress

This doesn't get custom resources but does get services.

Else this does something similar:

for i in `kubectl api-resources | awk '{print $1}'`; do kubectl get $i; done

Running v1.13


Answer of rcorre is correct but for N resources it make N requests to cluster (so for a lot of resources this approach is very slow). Moreover, not found resources (that have not instances) are very slow for getting with kubectl get.

There is a better way to make a request for multiple resources:

kubectl get pods,svc,secrets

instead of

kubectl get pods
kubectl get svc
kubectl get secrets

So the answer is:

#!/usr/bin/env bash

# get all names and concatenate them with comma
NAMES="$(kubectl api-resources \
                 --namespaced \
                 --verbs list \
                 -o name \
           | tr '\n' ,)"

# ${NAMES:0:-1} -- because of `tr` command added trailing comma
# --show-kind is optional
kubectl get "${NAMES:0:-1}" --show-kind

or 

#!/usr/bin/env bash

# get all names
NAMES=( $(kubectl api-resources \
                  --namespaced \
                  --verbs list \
                  -o name) )

# Now join names into single string delimited with comma
# Note *, not @
IFS=,
NAMES="${NAMES[*]}"
unset IFS

# --show-kind is enabled implicitly
kubectl get "$NAMES"

Based on this comment , the supported way to list all resources is to iterate through all the api versions listed by kubectl api-resources:

kubectl api-resources enumerates the resource types available in your cluster.

this means you can combine it with kubectl get to actually list every instance of every resource type in a namespace:

kubectl api-resources --verbs=list --namespaced -o name \
  | xargs -n 1 kubectl get --show-kind --ignore-not-found -l <label>=<value> -n <namespace>

Tags:

Kubernetes

Kubectl

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