From d95de48d4231d98e5cfe7ca6ce061004af7c68ff Mon Sep 17 00:00:00 2001
From: Brandon High <highb@users.noreply.github.com>
Date: Tue, 10 May 2022 12:22:36 -0700
Subject: [PATCH] Add kubernetes example for hotrod app (#3645)
* Add kubernetes example for hotrod app
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Remove grafana-agent optional configuration
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Add redis container to kubernetes deployment example
Also reduces the cpu/memory limits as they were excessive initially.
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Move kubernetes example into hotrod/kubernetes
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Add jaeger all-in-one to kubernetes example
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Add one-liner for port-forward to see traces
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Tracing port needs to be UDP not TCP
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Update examples/hotrod/README.md
Co-authored-by: Yuri Shkuro <yurishkuro@users.noreply.github.com>
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Move up kubernetes section in hotrod example README
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Apply suggestions from code review
Co-authored-by: Yuri Shkuro <yurishkuro@users.noreply.github.com>
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Add cleanup to k8s example READMEs
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Remove redis from hotrod example
Signed-off-by: Brandon High <highb@users.noreply.github.com>
* Use pod local/localhost for jaeger-all-in-one
Signed-off-by: Brandon High <highb@users.noreply.github.com>
Co-authored-by: Yuri Shkuro <yurishkuro@users.noreply.github.com>
Signed-off-by: Albert Teoh <see.kwang.teoh@gmail.com>
---
examples/hotrod/README.md | 14 +++++++
examples/hotrod/kubernetes/README.md | 17 ++++++++
.../kubernetes/base/hotrod/deployment.yaml | 40 +++++++++++++++++++
.../kubernetes/base/hotrod/kustomization.yaml | 6 +++
.../kubernetes/base/hotrod/service.yaml | 12 ++++++
.../base/jaeger-all-in-one/kustomization.yaml | 33 +++++++++++++++
.../base/jaeger-all-in-one/service.yaml | 16 ++++++++
examples/hotrod/kubernetes/kustomization.yaml | 12 ++++++
examples/hotrod/kubernetes/namespace.yaml | 4 ++
9 files changed, 154 insertions(+)
create mode 100644 examples/hotrod/kubernetes/README.md
create mode 100644 examples/hotrod/kubernetes/base/hotrod/deployment.yaml
create mode 100644 examples/hotrod/kubernetes/base/hotrod/kustomization.yaml
create mode 100644 examples/hotrod/kubernetes/base/hotrod/service.yaml
create mode 100644 examples/hotrod/kubernetes/base/jaeger-all-in-one/kustomization.yaml
create mode 100644 examples/hotrod/kubernetes/base/jaeger-all-in-one/service.yaml
create mode 100644 examples/hotrod/kubernetes/kustomization.yaml
create mode 100644 examples/hotrod/kubernetes/namespace.yaml
diff --git a/examples/hotrod/README.md b/examples/hotrod/README.md
index f369f87b704..305096f7fc9 100644
--- a/examples/hotrod/README.md
+++ b/examples/hotrod/README.md
@@ -28,6 +28,20 @@ to view the traces. A tutorial / walkthrough is available:
Alternatively, you can run each component separately as described below.
+### Run everything in Kubernetes
+
+```bash
+kustomize build ./kubernetes | kubectl apply -f -
+kubectl port-forward -n example-hotrod service/example-hotrod 8080:frontend
+# In another terminal
+kubectl port-forward -n example-hotrod service/jaeger 16686:frontend
+
+# To cleanup
+kustomize build ./kubernetes | kubectl delete -f -
+```
+
+Access Jaeger UI at http://localhost:16686 and HotROD app at http://localhost:8080
+
### Run Jaeger backend
An all-in-one Jaeger backend is packaged as a Docker container with in-memory storage.
diff --git a/examples/hotrod/kubernetes/README.md b/examples/hotrod/kubernetes/README.md
new file mode 100644
index 00000000000..e58aa2f93a7
--- /dev/null
+++ b/examples/hotrod/kubernetes/README.md
@@ -0,0 +1,17 @@
+# Hot R.O.D. - Rides on Demand on Kubernetes
+
+Example k8s manifests for deploying the [hotrod app](..) to your k8s environment of choice. e.g. minikube, k3s, EKS, GKE
+
+## Usage
+
+```bash
+kustomize build . | kubectl apply -f -
+kubectl port-forward -n example-hotrod service/example-hotrod 8080:frontend
+# In another terminal
+kubectl port-forward -n example-hotrod service/jaeger 16686:frontend
+
+# To cleanup
+kustomize build . | kubectl delete -f -
+```
+
+Access Jaeger UI at <http://localhost:16686> and HotROD app at <http://localhost:8080>
diff --git a/examples/hotrod/kubernetes/base/hotrod/deployment.yaml b/examples/hotrod/kubernetes/base/hotrod/deployment.yaml
new file mode 100644
index 00000000000..420f531816e
--- /dev/null
+++ b/examples/hotrod/kubernetes/base/hotrod/deployment.yaml
@@ -0,0 +1,40 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ labels:
+ app: example-hotrod
+ name: example-hotrod
+spec:
+ replicas: 1
+ selector:
+ matchLabels:
+ app: example-hotrod
+ strategy: {}
+ template:
+ metadata:
+ labels:
+ app: example-hotrod
+ spec:
+ containers:
+ - image: jaegertracing/example-hotrod:latest
+ name: example-hotrod
+ args: ["all"]
+ env:
+ - name: JAEGER_AGENT_HOST
+ value: localhost
+ - name: JAEGER_AGENT_PORT
+ value: "6831"
+ ports:
+ - containerPort: 8080
+ name: frontend
+ - containerPort: 8081
+ name: customer
+ - containerPort: 8083
+ name: route
+ resources:
+ limits:
+ cpu: 100m
+ memory: 100M
+ requests:
+ cpu: 100m
+ memory: 100M
diff --git a/examples/hotrod/kubernetes/base/hotrod/kustomization.yaml b/examples/hotrod/kubernetes/base/hotrod/kustomization.yaml
new file mode 100644
index 00000000000..5b98e944923
--- /dev/null
+++ b/examples/hotrod/kubernetes/base/hotrod/kustomization.yaml
@@ -0,0 +1,6 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+ - deployment.yaml
+ - service.yaml
diff --git a/examples/hotrod/kubernetes/base/hotrod/service.yaml b/examples/hotrod/kubernetes/base/hotrod/service.yaml
new file mode 100644
index 00000000000..7ac8a5cd705
--- /dev/null
+++ b/examples/hotrod/kubernetes/base/hotrod/service.yaml
@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Service
+metadata:
+ name: example-hotrod
+spec:
+ selector:
+ app: example-hotrod
+ ports:
+ - name: frontend
+ protocol: TCP
+ port: 8080
+ targetPort: frontend
diff --git a/examples/hotrod/kubernetes/base/jaeger-all-in-one/kustomization.yaml b/examples/hotrod/kubernetes/base/jaeger-all-in-one/kustomization.yaml
new file mode 100644
index 00000000000..e64e7bb96d3
--- /dev/null
+++ b/examples/hotrod/kubernetes/base/jaeger-all-in-one/kustomization.yaml
@@ -0,0 +1,33 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+bases:
+ - ../hotrod
+
+resources:
+ - service.yaml
+
+patches:
+ - target:
+ group: apps
+ version: v1
+ kind: Deployment
+ name: example-hotrod
+ patch: |-
+ - op: add
+ path: /spec/template/spec/containers/-
+ value:
+ image: jaegertracing/all-in-one:latest
+ name: jaeger
+ ports:
+ - containerPort: 6831
+ name: tracing-jaeger
+ - containerPort: 16686
+ name: frontend-jaeger
+ resources:
+ limits:
+ cpu: 100m
+ memory: 100M
+ requests:
+ cpu: 100m
+ memory: 100M
diff --git a/examples/hotrod/kubernetes/base/jaeger-all-in-one/service.yaml b/examples/hotrod/kubernetes/base/jaeger-all-in-one/service.yaml
new file mode 100644
index 00000000000..e893304eb17
--- /dev/null
+++ b/examples/hotrod/kubernetes/base/jaeger-all-in-one/service.yaml
@@ -0,0 +1,16 @@
+apiVersion: v1
+kind: Service
+metadata:
+ name: jaeger
+spec:
+ selector:
+ app: example-hotrod
+ ports:
+ - name: tracing
+ protocol: UDP
+ port: 6831
+ targetPort: tracing-jaeger
+ - name: frontend
+ protocol: TCP
+ port: 16686
+ targetPort: frontend-jaeger
diff --git a/examples/hotrod/kubernetes/kustomization.yaml b/examples/hotrod/kubernetes/kustomization.yaml
new file mode 100644
index 00000000000..84859ec2772
--- /dev/null
+++ b/examples/hotrod/kubernetes/kustomization.yaml
@@ -0,0 +1,12 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+bases:
+# If you only want the hotrod application, uncomment this line and comment out jaeger-all-in-one
+# - base/hotrod
+ - base/jaeger
+
+namespace: example-hotrod
+
+resources:
+ - namespace.yaml
diff --git a/examples/hotrod/kubernetes/namespace.yaml b/examples/hotrod/kubernetes/namespace.yaml
new file mode 100644
index 00000000000..e89d2e0c795
--- /dev/null
+++ b/examples/hotrod/kubernetes/namespace.yaml
@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+ name: example-hotrod