added a docker container file for content planner agent

[CHARLIE1210-A]

Description

In these commit , i added a docker file for content plannner agent example. Docker image helps for easy deployment.

[gemini-code-assist]

Summary of Changes

Hello @CHARLIE1210-A, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request focuses on containerizing the content_planner agent by adding the necessary Docker configuration files. This change aims to streamline the deployment process and enhance the agent's portability across different environments, making it easier to set up and run.

Highlights

• Dockerization: Introduced Docker support for the content_planner agent, allowing it to be containerized for easier deployment and portability.
• Build Optimization: Added a .dockerignore file to exclude unnecessary files and directories from the Docker build context, improving build efficiency and reducing image size.
• Dependency Management: The Dockerfile utilizes uv for efficient dependency synchronization and running the Python agent.

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[gemini-code-assist]

Code Review

This pull request introduces a Dockerfile and .dockerignore for the content planner agent. The setup is a good start. My review includes suggestions to improve the Dockerfile by enhancing security (running as a non-root user), ensuring build reproducibility (pinning versions), and optimizing build times with layer caching. I've also included a minor style fix for the .dockerignore file.

[gemini-code-assist]

Using the :latest tag for uv can lead to non-reproducible builds, as the tag can be updated to point to a new version at any time, potentially introducing breaking changes. It's a best practice to pin to a specific version tag or, for maximum reproducibility, a digest.

COPY --from=ghcr.io/astral-sh/uv:0.2.2 /uv /uvx /bin/

[gemini-code-assist]

I have two suggestions for this section:

1. Security (High): For security reasons, it's a best practice to run containers with a non-root user. You should create a dedicated user for the application and switch to it before the ENTRYPOINT. You can add the following lines before the ENTRYPOINT:

   # Create a non-root user and switch to it
   RUN addgroup --system app && adduser --system --ingroup app app
   USER app

2. Flexibility (Low): Hardcoding the port makes the container less flexible. Consider using an environment variable to allow runtime configuration. This is also consistent with other Dockerfiles in the repository (e.g., adk_facts/Dockerfile).

   ENTRYPOINT ["sh", "-c", "uv run . --host 0.0.0.0 --port ${PORT:-10001}"]

[gemini-code-assist]

To leverage Docker's layer caching more effectively and speed up build times, you should copy only the dependency manifest files (pyproject.toml, requirements.txt) and install dependencies before copying the rest of the application code. This prevents re-installing dependencies on every code change.

COPY pyproject.toml requirements.txt ./
RUN uv sync
COPY . ./

[gemini-code-assist]

It's a common convention for text files to end with a newline character. This avoids potential issues with file concatenation and some command-line tools.

.env