apache spark kubernets 部署试用
spark 是一个不错的平台，支持rdd 分析stream 机器学习。。。
以下为使用kubernetes 部署的说明，以及注意的地方
具体的容器镜像使用别人已经构建好的
deploy yaml 文件
deploy-k8s.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: spark-master
namespace: big-data
labels:
app: spark-master
spec:
replicas: 1
template:
metadata:
labels:
app: spark-master
spec:
containers:
- name: spark-master
image: bde2020/spark-master:2.3.1-hadoop2.7
imagePullPolicy: IfNotPresent
ports:
- containerPort: 7077
- containerPort: 8080
env:
- name: ENABLE_INIT_DAEMON
value: "false"
- name: SPARK_MASTER_PORT
value: "7077"
---
apiVersion: v1
kind: Service
metadata:
name: spark-master-service
namespace: big-data
spec:
type: NodePort
ports:
- port: 7077
targetPort: 7077
protocol: TCP
name: master
selector:
app: spark-master
---
apiVersion: v1
kind: Service
metadata:
name: spark-webui-service
namespace: big-data
spec:
ports:
- port: 8080
targetPort: 8080
protocol: TCP
name: ui
selector:
app: spark-master
type: NodePort
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: spark-webui-ingress
namespace: big-data
spec:
rules:
- host:
http:
paths:
- backend:
serviceName: spark-webui-service
servicePort: 8080
path: /
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: spark-worker
namespace: big-data
labels:
app: spark-worker
spec:
replicas: 1
template:
metadata:
labels:
app: spark-worker
spec:
containers:
- name: spark-worker
image: bde2020/spark-worker:2.3.1-hadoop2.7
imagePullPolicy: IfNotPresent
env:
- name: SPARK_MASTER
value: spark://spark-master-service:7077
- name: ENABLE_INIT_DAEMON
value: "false"
- name: SPARK_WORKER_WEBUI_PORT
value: "8081"
ports:
- containerPort: 8081
---
apiVersion: v1
kind: Service
metadata:
name: spark-worker-service
namespace: big-data
spec:
type: NodePort
ports:
- port: 8081
targetPort: 8081
protocol: TCP
name: worker
selector:
app: spark-worker
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: spark-worker-ingress
namespace: big-data
spec:
rules:
- host:
http:
paths:
- backend:
serviceName: spark-worker-service
servicePort: 8081
path: /部署&&运行
- 部署
kubectl apply -f deploy-k8s.yaml- 效果
使用ingress 访问，访问域名
说明
- 命名的问题
平时的习惯是deploy service 命名为一样的，但是就是这个就有问题的，因为k8s 默认会进行环境变量的注入，所以居然冲突的。
解决方法，修改名称，重新发布
具体问题：
dockerfile 中的以下环境变量
ENV SPARK_MASTER_PORT 7077- spark 任务运行
具体的运行可以参考官方demo，后期也会添加
