I have deployed my service as headless server and did follow the kubernetes configuration as mentioned in this link (http://vertx.io/docs/vertx-hazelcast/java/#_using_this_cluster_manager). My service is load balanced and proxied using ambassador. Everything was working fine as long as the service was not headless. Once the service changed to headless, ambassador is not able to discover my services. Which means it was looking for clusterIP and it is missing now as the services are headless. What is that I need to include in my deployment.yaml so these services are discovered by ambassador.
Error I see " upstream connect error or disconnect/reset before headers. reset reason: connection failure"
I need these services to be headless because that is the only way to create a cluster using hazelcast. And I am creating web socket connection and vertx eventbus.
apiVersion: v1
kind: Service
metadata:
name: abt-login-service
labels:
chart: "abt-login-service-0.1.0-SNAPSHOT"
annotations:
fabric8.io/expose: "true"
fabric8.io/ingress.annotations: 'kubernetes.io/ingress.class: nginx'
getambassador.io/config: |
---
apiVersion: ambassador/v1
name: login_mapping
ambassador_id: default
kind: Mapping
prefix: /login/
service: abt-login-service.default.svc.cluster.local
use_websocket: true
spec:
type: ClusterIP
clusterIP: None
selector:
app: RELEASE-NAME-abt-login-service
ports:
- port: 80
targetPort: 8080
protocol: TCP
name: http
- name: hz-port-name
port: 5701
protocol: TCP```
```Deployment.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: RELEASE-NAME-abt-login-service
labels:
draft: draft-app
chart: "abt-login-service-0.1.0-SNAPSHOT"
spec:
replicas: 2
selector:
matchLabels:
app: RELEASE-NAME-abt-login-service
minReadySeconds: 30
strategy:
type: RollingUpdate
rollingUpdate:
maxSurge: 1
maxUnavailable: 0
template:
metadata:
labels:
draft: draft-app
app: RELEASE-NAME-abt-login-service
component: abt-login-service
spec:
serviceAccountName: vault-auth
containers:
- name: abt-login-service
env:
- name: SPRING_PROFILES_ACTIVE
value: "dev"
- name: _JAVA_OPTIONS
value: "-XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=2 -Dsun.zip.disableMemoryMapping=true -XX:+UseParallelGC -XX:Min
HeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 -XX:GCTimeRatio=4 -XX:AdaptiveSizePolicyWeight=90 -Dhazelcast.diagnostics.enabled=true
"
image: "draft:dev"
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8080
ports:
- containerPort: 5701
livenessProbe:
httpGet:
path: /health
port: 8080
initialDelaySeconds: 60
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
readinessProbe:
httpGet:
path: /health
port: 8080
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
resources:
limits:
cpu: 500m
memory: 1024Mi
requests:
cpu: 400m
memory: 512Mi
terminationGracePeriodSeconds: 10```
How can I make these services discoverable by ambassador?