Optimize container build configurations

Configure containerized application builds to be efficient and flexible by avoiding hardcoded architecture decisions and using appropriate compiler flags. Let the build system determine architecture targeting instead of maintaining architecture-specific code blocks in your Dockerfiles. For Go applications, use appropriate build flags like CGO_ENABLED=0 to enable static linking and optimize container images.

Example: Instead of:

RUN if [ "$(uname -m)" = "aarch64" ]; then \
        CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -o webhook -a . ; \
    else \
        CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o webhook -a . ; \
    fi

Prefer:

RUN CGO_ENABLED=0 GOOS=linux go build -o webhook -ldflags "-w" -a .

This approach simplifies maintenance, allows multi-architecture builds through tools like Docker buildx (e.g., docker buildx build --platform linux/amd64,linux/arm64 ...), and produces more efficient container images.