Help Center/ Cloud Container Instance (CCI)/ Best Practices/ Workload Creation/ Configuring Dockerfile Parameters for CCI
Updated on 2025-08-12 GMT+08:00
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Configuring Dockerfile Parameters for CCI

Scenario

A Dockerfile is often used to build an image. A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.

This topic describes how to apply the Dockerfile configurations in CCI.

Using Dockerfile Parameters in CCI

The following uses an example to describe the relationship between Dockerfile parameters and CCI.

FROM ubuntu:16.04

ENV VERSION 1.0

VOLUME /var/lib/app

EXPOSE 80

ENTRYPOINT ["./entrypoint.sh"]
CMD ["start"]

In this example, the Dockerfile contains common parameters, including ENV, VOLUME, EXPOSE, ENTRYPOINT, and CMD. These parameters can be configured for CCI as follows:

kind: Deployment
apiVersion: cci/v2
metadata:
  name: wordpress
spec:
  replicas: 1
  selector:
    matchLabels:
      app: wordpress
  template:
    metadata:
      labels:
        app: wordpress
    spec:
      containers:
      - name: wordpress
        image: wordpress:latest
        command: [."/entrypoint.sh"] # ENTRYPOINT
        args: ["start"] # CMD
        ports: # EXPOSE
        - containerPort: 80
        env: # ENV
        - name: VERSION
          value: "1.0"
        resources:
          limits:
            cpu: 500m
            memory: 1Gi
          requests:
            cpu: 500m
            memory: 1Gi
        volumeMounts: # VOLUME
        - name: cache-volume
          mountPath: /cache
      volumes:
      - name: cache-volume
        emptyDir:
          sizeLimit: 1Gi
          medium: Memory
      dnsPolicy: Default
Parent topic: Workload Creation