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There are two approaches to transmitting logs from a Docker image to CloudWatch when deploying a new EC2 Docker container:

1. Use the AWS Log Driver for Docker: AWS provides a built-in log driver for Docker that allows you to send container logs directly to CloudWatch. To use this log driver, you need to update your Docker run command to include the awslogs log driver along with the necessary parameters for configuring the log group, log stream, and AWS region.

2. Use a third-party logging agent: There are third-party logging agents available, such as Fluentd, that can be used to collect and forward logs from Docker containers to CloudWatch. These agents can be installed as part of your Docker image or deployed as a separate container within your EC2 instances. The logs are then collected by the agent and forwarded to CloudWatch.