adleong

#!/bin/bash

pods=$(kubectl get po -A -l linkerd.io/control-plane-ns -ojsonpath="{range .items[*]}{.metadata.name} {.metadata.namespace}{'\n'}{end}")

IFS=" "

while read name namespace; do
  tcp=$(kubectl debug -n $namespace $name --image=cr.l5d.io/linkerd/debug:stable-2.12.0 -it -- cat /proc/net/tcp)
  close_wait=$(echo $tcp | awk 'BEGIN {cnt=0} $4==08 {cnt++} END {print cnt}')
  fin_wait_2=$(echo $tcp | awk 'BEGIN {cnt=0} $4==05 {cnt++} END {print cnt}')

adleong

---
apiVersion: policy.linkerd.io/v1beta1
kind: Server
metadata:
  name: proxy-admin
  labels:
    linkerd.io/extension: viz
spec:
  podSelector:
    matchExpressions:

adleong

---
apiVersion: policy.linkerd.io/v1beta1
kind: Server
metadata:
  namespace: emojivoto
  name: emoji-grpc
  labels:
    app.kubernetes.io/part-of: emojivoto
    app.kubernetes.io/name: emoji
    app.kubernetes.io/version: v11

adleong

apiVersion: v1
kind: Namespace
metadata:
  labels:
    app.kubernetes.io/instance: ingress-nginx
    app.kubernetes.io/name: ingress-nginx
  name: ingress-nginx
---
apiVersion: v1
automountServiceAccountToken: true

adleong

apiVersion: v1
kind: Namespace
metadata:
  name: emojivoto
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: emoji
  namespace: emojivoto

adleong

# Step 1: Install Linkerd
# Step 2: Install Linkerd Viz (optional, but helpful for seeing what's going on)
# Step 3: Install Linkerd Jaeger
# Step 4: Install Nginx Ingress:

linkerd inject https://gist.githubusercontent.com/adleong/f7318d9282ab99ba12c3479405882e60/raw/713daaa51f035d0d484ea79daf77cc3aaded8010/yml | kubectl apply -f -
# Notice the tracing related config in the nginx config configmap in the aboe gist: https://gist.github.com/adleong/f7318d9282ab99ba12c3479405882e60#file-yml-L340

# Step 5: Install Emojivoto 

adleong

# Two backend pods, one always failing
# and another one returning OK response
# Slowcooker is used to generate traffic
# that will be routed via traffic split
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: backend
spec: