therealmitchconnors

NAME                                                                                        SERVICE FQDN                                                         PORT      SUBSET     DIRECTION     TYPE             DESTINATION RULE
cluster/BlackHoleCluster                                                                    cluster/BlackHoleCluster                                             -         -          -             STATIC           
cluster/agent                                                                               cluster/agent                                                        -         -          -             STATIC           
cluster/outbound|7000||argocd-applicationset-controller.akuity.svc.cluster.local            argocd-applicationset-controller.akuity.svc.cluster.local            7000      -          outbound      EDS              
cluster/outbound|8080||argocd-applicationset-controller.akuity.svc.cluster.local            argocd-applicationset-controller.akuity.svc.cluster.local   

therealmitchconnors

Learn Kubernetes with Google - Istio

These files will help you follow along with our Learn Kubernetes with Google series (TODO link to YouTube). In them, you take the role of a service operator who's kubernetes application is misbehaving, and we will use Istio to help identify, mitigate, and resolve the misbehavior. Each step corresponds to one five minute episode, and teaches a core concept of Istio.

Step 1

Run the following command before starting the series to install a slightly broken version of our bookinfo service into your kubernetes cluster.

curl https://gist.githubusercontent.com/therealmitchconnors/b88965a820768e76e02b1b8e4546b64c/raw/install.sh | bash

NOTE: for platforms other than GKE, you may need to modify the gatewayClassName parameter to fit your cloud provider of choice.

therealmitchconnors

---
# Source: crds/crd-operator.yaml
# SYNC WITH manifests/charts/base/files
apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
  name: istiooperators.install.istio.io
  labels:
    release: istio
spec:

therealmitchconnors

apiVersion: install.istio.io/v1alpha1
kind: IstioOperator
spec:
  components:
    ingressGateways:
    - name: istio-egressgateway
      enabled: true
      k8s:
        hpaSpec:
          maxReplicas: 40

therealmitchconnors

cat <<EOF | kubectl apply -n istio-system -f -
apiVersion: cloud.google.com/v1beta1
kind: BackendConfig
metadata:
  name: http-hc-config
spec:
  healthCheck:
    checkIntervalSec: 2
    timeoutSec: 1
    healthyThreshold: 1

therealmitchconnors

Istio Performance Analysis

The goal of this experiment is to measure the amount of latency that is added to a simple service by the addition of various Istio Components. To isolate the contribution of each component, many combinations of avialable components were tested and recorded.

Components

• Sidecar
• Istio Ingress
• Load Balancer Ingress

Other Parameters

therealmitchconnors

// Copyright 2020 Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,

therealmitchconnors

// copyright

// standard generated code warning

package features

const (
  traffic_circuitbreakers_failgracefully = "traffic.circuit-breakers.fail-gracefully"
  observability = "observability"
  usability_introspection_status_distribution_immidatelyfalse = "usability.introspection.status.distribution.immediately-false"

therealmitchconnors

FROM golang:latest AS getter
RUN go get -u -v github.com/go-delve/delve/cmd/dlv
#COPY dlv    .

FROM docker.io/therealmitchconnors/pilot:therealmitchconnors

EXPOSE 40000
COPY --from=0 /go/bin/dlv .
ENTRYPOINT ["./dlv", "--listen=:40000", "--headless=true", "--api-version=2", "exec", "/usr/local/bin/pilot-discovery", "--"]

therealmitchconnors

// Copyright 2019 Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,