DTM tutorial

Online deployment

The number of dtm replicas

dtm itself behaves similarly to an ordinary stateless application, where the data is stored in the database. Therefore, dtm can be deployed with multiple replicas just like an ordinary application. The recommended number of replicas is 2 or 3, which is sufficient for high availability. As the load rises, the number of replicas of dtm can be increased to improve the processing capacity of dtm.

K8S Deployment

Currently, since dtm supports http protocol, you can achieve the K8S deployment by adding the deployment configuration of K8S to the previous docker deployment. A reference of deployment.yml is given below:

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: dtm
  name: dtm
  namespace: default
spec:
  progressDeadlineSeconds: 600
  replicas: 4
  revisionHistoryLimit: 5
  selector:
    matchLabels:
      app: dtm
  minReadySeconds: 3
  strategy:
    rollingUpdate:
      maxSurge: 10%
      maxUnavailable: 0
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: dtm
    spec:
      containers:
        - env:
            - name: DB_HOST
              value: your-host
            - name: DB_PORT
              value: 3306
            - name: DB_USER
              value: root
            - name: DB_PASSWORD
              value: ''
            - name: TRANS_CRON_INTERVAL
              value: 10
            - name: IS_DOCKER
              value: '1'
          image: yedf/dtm:latest
          imagePullPolicy: Always
          livenessProbe:
            failureThreshold: 30
            httpGet:
              path: /api/ping
              port: 8080
              scheme: HTTP
            initialDelaySeconds: 150
            periodSeconds: 2
            successThreshold: 1
            timeoutSeconds: 3
          readinessProbe:
            failureThreshold: 5
            httpGet:
              path: /api/ping
              port: 8080
              scheme: HTTP
            initialDelaySeconds: 150
            periodSeconds: 3
            successThreshold: 1
            timeoutSeconds: 2
          name: dtm
          ports:
            - containerPort: 8080
          resources:
            requests:
              cpu: 200m
              memory: 200Mi
          stdin: true
          tty: true
---
apiVersion: v1
kind: Service
metadata:
  name: dtm-svc
  namespace: default
spec:
  ports:
    - port: 80
      targetPort: 8080
      name: dtm-svc-port
  selector:
    app: dtm
  type: ClusterIP
---

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: dtm-ingress
  namespace: default
spec:
  rules:
    - host: 'your-domain'
      http:
        paths:
          - backend:
              serviceName: dtm-svc
              servicePort: 80
            path: /api/dtmsvr/