Does bashrc work in ARC runner image?

[kimxogus]

I built my own runner image based on https://github.com/actions-runner-controller/actions-runner-controller/tree/master/runner which adding cmd to install linuxbrew as below

ENV NVM_DIR /home/runner/.nvm
RUN echo 'eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"' | sudo tee -a /etc/profile; \
    echo 'eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"' >> /home/runner/.bashrc; \
    echo 'eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"' >> /home/runner/.profile; \
    echo 'eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"' >> /home/runner/.bash_profile; \
    eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"; \
    brew install yarn mysql awscli docker-compose nvm; \
    brew cleanup --prune=all; \
    pip3 install -U pip setuptools wheel

And tested with this step.

    - shell: bash
      run: |
        brew install curl || echo 'failed'
        echo $PATH
        eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
        echo $PATH
        brew install curl

It seems none of /etc/profile, bashrc, profile, bash_profile works, because shell could recognize brew bin and after eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)" which is already in bashrc and profile.

I wonder if this is a bug, or an intended behavior.