Kubernetes command、args的各种写法

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  stratgy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 1
    type: RollingUpdate
  replicas: 2 # 告知 Deployment 运行 2 个与该模板匹配的 Pod
  template:
    metadata:
      labels:
        app: nginx
    spec:
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: gcs
                operator: In
                values:
                - gcs
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - nginx
            topologyKey: kubernetes.io/hostname
      automountServiceAccountToken: false
      containers:
      - args: 
        - ip=`hostname -i` ; server_name="nginx" ; port="8080" ; /etc/jre/bin/java -jar -Dhwenvironment=pro -Dspring.config.additional-location=file:/opt/configmap/application.yml -Xmx1344M -Xms1344M -Xmn448M -XX:MaxMetaspaceSize=192M -XX:MetaspaceSize=192M -XX:+UseG1GC -Duser.timezone=GMT+08 /opt/xxxx.jar
        command:
        - /bin/sh
        - -c
        env:
        - name: HOSTIP
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.hostIP
        - name: PODIP
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.podIP
        name: nginx
        image: nginx:1.14.2
        ports:
        - containerPort: 8080
          protocol: TCP
        resources:
          limits:
            cpu: "1"
            memory: 4Gi
          requests:
            cpu: 300m
            memory: 2000Mi

      containers:
      - command:
        - /etc/jre/bin/java
        - -jar
        - -Dhwenvironment=pro
        - -Dspring.config.additional-location=file:/opt/configmap/application.yml 
        - -Duser.timezone=GMT+08 
        - /opt/xxxx.jar
        env:
        - name: HOSTIP
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.hostIP
        name: nginx
        image: nginx:1.14.2
        imagePullPolicy: Always   

      containers:
      - command:
        - bash
        - -c 
        - /etc/jre/bin/java -jar -Dhwenvironment=pro -Dspring.config.additional-location=file:/opt/configmap/application.yml -Xmx1344M -Xms1344M -Xmn448M -XX:MaxMetaspaceSize=192M -XX:MetaspaceSize=192M -XX:+UseG1GC -Duser.timezone=GMT+08 /opt/xxxx.jar
        env:
        - name: HOSTIP
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.hostIP