141 lines
3.3 KiB
YAML
141 lines
3.3 KiB
YAML
apiVersion: v1
|
|
kind: ConfigMap
|
|
metadata:
|
|
name: nats-config
|
|
namespace: todo
|
|
labels:
|
|
kiamol: ch21-lab
|
|
data:
|
|
nats.conf: |
|
|
pid_file: "/var/run/nats/nats.pid"
|
|
http: 8222
|
|
---
|
|
apiVersion: v1
|
|
kind: Service
|
|
metadata:
|
|
name: message-queue
|
|
namespace: todo
|
|
labels:
|
|
app: nats
|
|
kiamol: ch21-lab
|
|
spec:
|
|
selector:
|
|
app: nats
|
|
clusterIP: None
|
|
ports:
|
|
- name: client
|
|
port: 4222
|
|
- name: cluster
|
|
port: 6222
|
|
- name: monitor
|
|
port: 8222
|
|
- name: metrics
|
|
port: 7777
|
|
- name: leafnodes
|
|
port: 7422
|
|
- name: gateways
|
|
port: 7522
|
|
---
|
|
apiVersion: apps/v1
|
|
kind: StatefulSet
|
|
metadata:
|
|
name: nats
|
|
namespace: todo
|
|
labels:
|
|
app: nats
|
|
kiamol: ch21-lab
|
|
spec:
|
|
selector:
|
|
matchLabels:
|
|
app: nats
|
|
replicas: 1
|
|
serviceName: "nats"
|
|
template:
|
|
metadata:
|
|
labels:
|
|
app: nats
|
|
spec:
|
|
# Common volumes for the containers
|
|
volumes:
|
|
- name: config-volume
|
|
configMap:
|
|
name: nats-config
|
|
- name: pid
|
|
emptyDir: {}
|
|
|
|
# Required to be able to HUP signal and apply config reload
|
|
# to the server without restarting the pod.
|
|
shareProcessNamespace: true
|
|
|
|
#################
|
|
# #
|
|
# NATS Server #
|
|
# #
|
|
#################
|
|
terminationGracePeriodSeconds: 60
|
|
containers:
|
|
- name: nats
|
|
image: nats:2.1.0-alpine3.10
|
|
ports:
|
|
- containerPort: 4222
|
|
name: client
|
|
hostPort: 4222
|
|
- containerPort: 7422
|
|
name: leafnodes
|
|
hostPort: 7422
|
|
- containerPort: 6222
|
|
name: cluster
|
|
- containerPort: 8222
|
|
name: monitor
|
|
- containerPort: 7777
|
|
name: metrics
|
|
command:
|
|
- "nats-server"
|
|
- "--config"
|
|
- "/etc/nats-config/nats.conf"
|
|
|
|
# Required to be able to define an environment variable
|
|
# that refers to other environment variables. This env var
|
|
# is later used as part of the configuration file.
|
|
env:
|
|
- name: POD_NAME
|
|
valueFrom:
|
|
fieldRef:
|
|
fieldPath: metadata.name
|
|
- name: POD_NAMESPACE
|
|
valueFrom:
|
|
fieldRef:
|
|
fieldPath: metadata.namespace
|
|
- name: CLUSTER_ADVERTISE
|
|
value: $(POD_NAME).nats.$(POD_NAMESPACE).svc
|
|
volumeMounts:
|
|
- name: config-volume
|
|
mountPath: /etc/nats-config
|
|
- name: pid
|
|
mountPath: /var/run/nats
|
|
|
|
# Liveness/Readiness probes against the monitoring
|
|
#
|
|
livenessProbe:
|
|
httpGet:
|
|
path: /
|
|
port: 8222
|
|
initialDelaySeconds: 10
|
|
timeoutSeconds: 5
|
|
readinessProbe:
|
|
httpGet:
|
|
path: /
|
|
port: 8222
|
|
initialDelaySeconds: 10
|
|
timeoutSeconds: 5
|
|
|
|
# Gracefully stop NATS Server on pod deletion or image upgrade.
|
|
#
|
|
lifecycle:
|
|
preStop:
|
|
exec:
|
|
# Using the alpine based NATS image, we add an extra sleep that is
|
|
# the same amount as the terminationGracePeriodSeconds to allow
|
|
# the NATS Server to gracefully terminate the client connections.
|
|
#
|
|
command: ["/bin/sh", "-c", "/nats-server -sl=ldm=/var/run/nats/nats.pid && /bin/sleep 60"] |