Tracing reference architecture

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## Emojivoto

```yaml
---
apiVersion: v1
kind: Namespace
metadata:
name: emojivoto
---
kind: ServiceAccount
apiVersion: v1
metadata:
name: emoji
namespace: emojivoto
---
kind: ServiceAccount
apiVersion: v1
metadata:
name: voting
namespace: emojivoto
---
kind: ServiceAccount
apiVersion: v1
metadata:
name: web
namespace: emojivoto
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
creationTimestamp: null
name: emoji
namespace: emojivoto
spec:
replicas: 1
selector:
matchLabels:
app: emoji-svc
strategy: {}
template:
metadata:
creationTimestamp: null
labels:
app: emoji-svc
spec:
serviceAccountName: emoji
containers:
- env:
- name: GRPC_PORT
value: "8080"
- name: OC_AGENT_HOST
value: "oc-collector.tracing:55678"
image: buoyantio/emojivoto-emoji-svc:git-254451a
name: emoji-svc
ports:
- containerPort: 8080
name: grpc
resources:
requests:
cpu: 100m
status: {}
---
apiVersion: v1
kind: Service
metadata:
name: emoji-svc
namespace: emojivoto
spec:
selector:
app: emoji-svc
clusterIP: None
ports:
- name: grpc
port: 8080
targetPort: 8080
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
creationTimestamp: null
name: voting
namespace: emojivoto
spec:
replicas: 1
selector:
matchLabels:
app: voting-svc
strategy: {}
template:
metadata:
creationTimestamp: null
labels:
app: voting-svc
spec:
serviceAccountName: voting
containers:
- env:
- name: GRPC_PORT
value: "8080"
- name: OC_AGENT_HOST
value: "oc-collector.tracing:55678"
image: buoyantio/emojivoto-voting-svc:git-254451a
name: voting-svc
ports:
- containerPort: 8080
name: grpc
resources:
requests:
cpu: 100m
status: {}
---
apiVersion: v1
kind: Service
metadata:
name: voting-svc
namespace: emojivoto
spec:
selector:
app: voting-svc
clusterIP: None
ports:
- name: grpc
port: 8080
targetPort: 8080
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
creationTimestamp: null
name: web
namespace: emojivoto
spec:
replicas: 1
selector:
matchLabels:
app: web-svc
strategy: {}
template:
metadata:
creationTimestamp: null
labels:
app: web-svc
spec:
serviceAccountName: web
containers:
- env:
- name: WEB_PORT
value: "80"
- name: OC_AGENT_HOST
value: "oc-collector.tracing:55678"
- name: EMOJISVC_HOST
value: emoji-svc.emojivoto:8080
- name: VOTINGSVC_HOST
value: voting-svc.emojivoto:8080
- name: INDEX_BUNDLE
value: dist/index_bundle.js
image: buoyantio/emojivoto-web:git-254451a
name: web-svc
ports:
- containerPort: 80
name: http
resources:
requests:
cpu: 100m
status: {}
---
apiVersion: v1
kind: Service
metadata:
name: web-svc
namespace: emojivoto
spec:
type: LoadBalancer
selector:
app: web-svc
ports:
- name: http
port: 80
targetPort: 80
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
creationTimestamp: null
name: vote-bot
namespace: emojivoto
spec:
replicas: 1
selector:
matchLabels:
app: vote-bot
strategy: {}
template:
metadata:
creationTimestamp: null
labels:
app: vote-bot
spec:
containers:
- command:
- emojivoto-vote-bot
env:
- name: WEB_HOST
value: web-svc.emojivoto:80
image: buoyantio/emojivoto-web:v8
name: vote-bot
resources:
requests:
cpu: 10m
status: {}
---
```

## Tracing System

```yaml
---
apiVersion: v1
kind: Namespace
metadata:
name: tracing
---
apiVersion: v1
kind: ConfigMap
metadata:
name: oc-collector-conf
namespace: tracing
labels:
app: opencensus
component: oc-collector-conf
data:
oc-collector-config: |
receivers:
opencensus:
port: 55678
jaeger:
jaeger-thrift-tchannel-port: 14267
jaeger-thrift-http-port: 14268
zipkin:
port: 9411
queued-exporters:
jaeger-all-in-one:
num-workers: 4
queue-size: 100
retry-on-failure: true
sender-type: jaeger-thrift-http
jaeger-thrift-http:
collector-endpoint: http://jaeger.tracing:14268/api/traces
timeout: 5s
---
apiVersion: v1
kind: Service
metadata:
name: oc-collector
namespace: tracing
labels:
app: opencensus
component: oc-collector
spec:
# This is only important for jaeger, for reasons I don't quite understand.
clusterIP: None
ports:
- name: zipkin
port: 9411
- name: opencensus
port: 55678
- name: jaeger-thrift
port: 14627
targetPort: 14627
protocol: TCP
- name: jaeger-http
port: 14628
targetPort: 14628
protocol: TCP
selector:
app: opencensus
component: oc-collector
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: oc-collector
namespace: tracing
labels:
app: opencensus
component: oc-collector
spec:
replicas: 1
template:
metadata:
annotations:
prometheus.io/path: "/metrics"
prometheus.io/port: "8888"
prometheus.io/scrape: "true"
labels:
app: opencensus
component: oc-collector
spec:
containers:
- image: alpine:3.10
name: dummy

command: ["/bin/sh", "-c"]
args:
- |-
while true; do sleep 100; done

- command:
- "/occollector_linux"
- "--config=/conf/oc-collector-config.yaml"
- "--receive-jaeger"
- "--receive-zipkin"
- "--log-level=debug"
env:
- name: GOGC
value: "80"
image: omnition/opencensus-collector:0.1.10
name: oc-collector
ports:
- containerPort: 9411
- containerPort: 55678
- containerPort: 14627
- containerPort: 14628
volumeMounts:
- name: oc-collector-config-vol
mountPath: /conf
volumes:
- configMap:
name: oc-collector-conf
items:
- key: oc-collector-config
path: oc-collector-config.yaml
name: oc-collector-config-vol
---
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
name: jaeger
namespace: tracing
labels:
app: jaeger
app.kubernetes.io/component: all-in-one
spec:
replicas: 1
template:
metadata:
labels:
app: jaeger
app.kubernetes.io/component: all-in-one
spec:
dnsPolicy: ClusterFirst
containers:
- name: jaeger
image: jaegertracing/all-in-one:1.8
ports:
- name: collection
containerPort: 14268
- name: ui
containerPort: 16686
---
apiVersion: v1
kind: Service
metadata:
name: jaeger
namespace: tracing
labels:
app: jaeger
app.kubernetes.io/component: all-in-one
spec:
selector:
app: jaeger
app.kubernetes.io/component: all-in-one
ports:
- name: collection
port: 14268
- name: ui
port: 16686
```

## Ingress

### Nginx

```bash
kubectl create ns nginx && \
helm fetch stable/nginx-ingress && \
cat <

No repository file or test is named. Start by reviewing the Emojivoto, Tracing System, and ingress YAML and shell examples, then determine the intended reference-architecture documentation scope. Done should be a clear, maintained tracing architecture covering the shown Kubernetes deployments and Nginx, Traefik, and Ambassador ingress examples.

Written by the indexing model from the issue text.