brianpursley

kubectl create ns nginx-test

kubectl apply --namespace nginx-test -f - << EOF
apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-config
data:
  default.conf: |
    server {

brianpursley

Most Validate functions take no parameters, and only validate against Options:

~/go/src/k8s.io/kubernetes (master) $ grep -r ./staging/src/k8s.io/kubectl -Pe 'func.*\(.*Options\).Validate\(\)'
./staging/src/k8s.io/kubectl/pkg/cmd/set/set_resources.go:func (o *SetResourcesOptions) Validate() error {
./staging/src/k8s.io/kubectl/pkg/cmd/set/set_selector.go:func (o *SetSelectorOptions) Validate() error {
./staging/src/k8s.io/kubectl/pkg/cmd/set/set_image.go:func (o *SetImageOptions) Validate() error {
./staging/src/k8s.io/kubectl/pkg/cmd/set/set_subject.go:func (o *SubjectOptions) Validate() error {
./staging/src/k8s.io/kubectl/pkg/cmd/set/set_env.go:func (o *EnvOptions) Validate() error {
./staging/src/k8s.io/kubectl/pkg/cmd/proxy/proxy.go:func (o ProxyOptions) Validate() error {
./staging/src/k8s.io/kubectl/pkg/cmd/label/label.go:func (o *LabelOptions) Validate() error {

brianpursley

Creates a pod called echo that listens on port 8080, echoing everything it receives.

kubectl run echo --image=busybox -- nc -lk -p 8080 -e cat

To test it out, you can do this, to listen on local port 8080 and forward all connections to the echo pod:

kubectl port-forward echo 8080:8080

brianpursley

kubectl run tcpecho --image=alpine --restart=Never -- /bin/sh -c "apk add socat && socat -v tcp-listen:8080,fork EXEC:cat"

brianpursley

grep -orihEI "(https?:\/\/kubernetes.io/[-a-zA-Z0-9@:%._\+~#=>?/]*[-a-zA-Z0-9@:%_\+~#=>?])" * | sort | uniq -u | xargs -I % bash -c 'if wget --spider % 2>/dev/null; then echo "[OK] %"; else echo "[MISSING] %"; fi' > /tmp/output.txt

cat /tmp/output.txt | grep "\[MISSING\]" | cut -d " " -f2 | xargs -I % grep -riI %

brianpursley

package main

import (
	"fmt"
	"os"
	"os/signal"
	"sync"
	"syscall"
	"time"
)

brianpursley

I0802 06:18:52.492532       9 httplog.go:89] "HTTP" verb="GET" URI="/api/v1/nodes?resourceVersion=680&timeout=8m1s&timeoutSeconds=481&watch=true" latency="21.143508754s" userAgent="metrics-server/v0.0.0 (linux/amd64) kubernetes/$Format" srcIP="34.83.47.168:37848" resp=0
I0802 06:18:52.492782       9 httplog.go:89] "HTTP" verb="GET" URI="/api/v1/pods?resourceVersion=692&timeout=9m42s&timeoutSeconds=582&watch=true" latency="21.140854044s" userAgent="metrics-server/v0.0.0 (linux/amd64) kubernetes/$Format" srcIP="34.83.47.168:37848" resp=0
I0802 06:18:58.427831       9 httplog.go:89] "HTTP" verb="GET" URI="/api/v1/namespaces/kube-system/secrets?allowWatchBookmarks=true&fieldSelector=metadata.name%3Dmetrics-server-token-2jd7g&resourceVersion=416&timeout=9m52s&timeoutSeconds=592&watch=true" latency="32.681829847s" userAgent="kubelet/v1.20.0 (linux/amd64) kubernetes/766e56b" srcIP="34.83.47.168:58092" resp=0
I0802 06:18:58.428238       9 httplog.go:89] "HTTP" verb="GET" URI="/api/v1/namespaces/kube-system/configmaps

brianpursley

application-periodic-default-gke: 2h
ci-aws-ebs-csi-driver-migration-test-latest: 6h
ci-benchmark-kube-dns-master: 2h
ci-benchmark-microbenchmarks: 20m
ci-benchmark-nodelocal-dns-master: 2h
ci-benchmark-scheduler-master: 2h
ci-benchmark-scheduler-perf-master: 2h
ci-build-and-push-k8s-at-golang-tip: 8h
ci-cadvisor-canarypush: 24h
ci-cadvisor-e2e: 8h

brianpursley

package example;

import java.util.ArrayDeque;
import java.util.Arrays;

public class BstExample {

    static class Node {
        private int value;
        private Node left;

brianpursley

89 [sig-api-machinery] client-go should negotiate watch and report errors with accept \
     71 [sig-apps] DisruptionController Listing PodDisruptionBudgets for all namespaces should list and delete a collection of PodDisruptionBudgets
     69 [sig-api-machinery] Garbage collector should orphan pods created by rc if delete options say so [Conformance]
     68 [sig-storage] Subpath Atomic writer volumes should support subpaths with projected pod [LinuxOnly] [Conformance]
     67 [k8s.io] Docker Containers should use the image defaults if command and args are blank [NodeConformance] [Conformance]
     67 [k8s.io] Pods should be updated [NodeConformance] [Conformance]
     67 [k8s.io] PrivilegedPod [NodeConformance] should enable privileged commands [LinuxOnly]
     67 [k8s.io] [sig-node] Security Context should support container.SecurityContext.RunAsUser [LinuxOnly]
     67 [sig-storage] ConfigMap should be consumable from pods in volume with mappings [NodeConformance] [Conformance]
     67 [sig-storage] Projec