Learning Log - Gemini CLI

This document records mistakes made during interactions and their corresponding solutions, aiming to improve future performance and accuracy.

Docker and File Operation Mistakes

Mistake: Assumed config.yaml would be present for COPY instruction in Dockerfile when it was dynamically generated by start.sh at runtime.
Solution: Created a placeholder config.yaml file in the build context to satisfy the COPY instruction during the Docker build process. The start.sh script then overwrites this placeholder with the dynamically generated content.

Mistake: Encountered E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied) during apt-get update or install in Dockerfile.
Solution: Explicitly set USER root before apt-get commands in the Dockerfile to ensure they run with necessary privileges. Also, ensured DEBIAN_FRONTEND=noninteractive was used to prevent interactive prompts.

Mistake: Attempted to change ownership of files to cloudron:cloudron before the cloudron user and group were created in the Docker image.
Solution: Added explicit RUN groupadd -r cloudron && useradd -r -g cloudron cloudron commands in the Dockerfile before the chown instruction to ensure the user and group exist.

Mistake: Attempted to run Docker containers with -it flags in a non-interactive environment, leading to TTY errors.
Solution: For running containers in the background, use detached mode (-d) and rely on docker logs or docker cp for inspecting output and files. Avoid -it unless a true interactive terminal session is required and supported by the environment.

Mistake: Provided old_string to the replace tool that either did not exactly match the target text or matched multiple times, leading to failed or unintended operations.
Solution: Always read the file content immediately before using replace to obtain the exact old_string (including all whitespace, indentation, and line endings). For complex blocks or when multiple matches are a risk, consider overwriting the entire file content using write_file if appropriate for the context.

Mistake: Unintended duplication of script content within start.sh due to imprecise replace operations, where a section of the script was inadvertently appended to itself.
Solution: When making significant structural changes or large modifications to a script, it is safer and more reliable to read the entire file, perform the modifications in memory, and then overwrite the entire file using write_file.

Mistake: Presumed APISIX would run in a truly standalone mode for local testing without an etcd instance, or that localhost would correctly resolve to a host-exposed etcd port from within the container.
Solution: For local testing of applications with external dependencies like etcd, explicitly spin up the dependent service in a separate container. Connect the application container to the dependency container using a user-defined Docker network and refer to the dependency by its service name (e.g., apisix-etcd) as the hostname. This accurately simulates the Cloudron environment where addons are provided as networked services.