# Use a minimal base image with Perl
FROM alpine:latest

# Set a working directory
WORKDIR /app

# Install system dependencies and Perl
RUN apk update && \
    apk add --no-cache \
        perl \
        perl-app-cpanminus \
        perl-lwp-useragent-determined \
        perl-io-socket-ssl \
        perl-net-ssleay \
        perl-lwp-protocol-https \
        make \
        gcc \
        musl-dev \
        curl && \
    \
    # Install required Perl modules via CPAN
    cpanm --notest \
        JSON::Tiny \
        LWP::UserAgent \
        LWP::Protocol::https \
        Time::Duration \
        URI::Escape \
        Getopt::Std && \
    \
    # Clean up build dependencies and cache
    apk del make gcc musl-dev && \
    rm -rf /var/cache/apk/* /root/.cpanm

# Copy the Perl script into the container
COPY poller.pl /app/poller.pl

# Fix line endings and make the script executable
RUN sed -i 's/\r$//' /app/poller.pl && \
    chmod +x /app/poller.pl

# Define the default command
# Using perl explicitly and forcing unbuffered output
CMD ["perl", "-u", "/app/poller.pl"]