K8s_Deploy:
环境变量:
spec.template.spec.containers.env
常量定义,比如灰度环境定义:
- name: APP_ENV
value: GRAY
有时需要获取容器的一些信息,参数名自定义,则可参数引用:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: NODE_NAME
valueFrom:
fieldRef:
fieldPath: spec.nodeName
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: NODE_IP
valueFrom:
fieldRef:
fieldPath: status.hostIP
requests And limits
resources:
requests:
cpu: "1"
memory: "2Gi"
limits:
cpu: "2"
memory: "4Gi"
requests表示必须最小需要配置,limits表示最大可占用配置。
设置limits不设置requests默认,requests和limits一样。
设置requests不设置limits,则资源可在充沛条件下无限扩张,建议设置limits.
Ingress暴露(可通过Rancher配置):
要在原有的配置文件上添加以下信息:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: my-app-name
namespace: my-namespace
spec:
rules:
- host: my-app.ingress.local
http:
paths:
- backend:
serviceName: my-serviceName
servicePort: 80
path: /
---
apiVersion: v1
kind: Service
metadata:
labels:
app: my-app-name
name: my-app-name
namespace: my-namespace
spec:
ports:
- name: http
port: 80
protocol: TCP
targetPort: 8080
selector:
app: my-app-name
type: ClusterIP
---
※注意:“---”要保留用于区分不同部分,my[***]要替换为真实信息
PORT暴露(可通过Rancher配置)
apiVersion: v1
kind: Service
metadata:
labels:
app: my-appname
name: my-appname
namespace: my-namespace
spec:
ports:
- port: 8080
protocol: TCP
targetPort: http
name: http
selector:
app: vmagent-k8s
type: NodePort
---
※注意:“---”要保留用于区分不同部分,my[***]要替换为真实信息
Host绑定
spec:
template:
spec:
hostAliases:
- hostnames:
- www.example.local
ip: 172.00.00.00
标签:name,limits,deployConfig,app,requests,k8s,my,spec
From: https://www.cnblogs.com/DennyZhao/p/15666494.html