## cac-litespeed — OpenLiteSpeed customer container, LSAPI-native.
##
## Built on top of the LiteSpeed-maintained prebuilt image rather than
## installed-from-RPM on AlmaLinux 10. Rationale:
##   - The EL10 RPM ships an empty /usr/local/lsws/cgid/ directory (the
##     lscgid suexec helper is built by the upstream tarball install.sh,
##     not packaged), which makes LSAPI unusable.
##   - The prebuilt image is Ubuntu 24.04-based and includes lsphp +
##     everything WP/WooCommerce needs out of the box (memcached, redis,
##     imagick, mbstring, mysqlnd, intl, gd, soap, bcmath, gmp, sodium,
##     opcache, ...) — saves us a dozen explicit installs and avoids the
##     libonig.so.105 packaging bug entirely.
##   - LiteSpeed Inc maintains it; OLS upgrades become a base-image bump.
##
## Tradeoff vs the rest of the CAC family: this image is Ubuntu-based,
## not AlmaLinux. The "cac" naming is now slightly misleading (it's no
## longer Cloud *Apache* Container, it's Cloud LiteSpeed Container) but
## the panel doesn't care and the customer-facing contract is identical.

## ARG before FROM is special — it can be used in the FROM line, but the
## value goes out of scope inside the image, so we re-declare ARG PHPVER
## after FROM for any RUN steps that need it.
ARG OLS_VERSION=1.8.5
ARG PHPVER=83
FROM litespeedtech/openlitespeed:${OLS_VERSION}-lsphp${PHPVER}
ARG PHPVER=83
ENV PHPVER=${PHPVER}

## Tooling we layer on top of the base:
##   - gettext-base: envsubst for runtime template rendering
##   - sudo: install-lscache-wp.sh runs wp-cli as the customer user
##   - composer: not in the base image (wp-cli is)
##   - cron: customer crontab support (mirror cac:phpXX behaviour)
##   - mariadb-server + memcached: DEV-mode parity with the existing CAC
##     entrypoints. PROD mode never starts these.
##   - lsphp83-ldap: not in base image, useful for some WP plugins
##
## All apt cache is cleaned in the same layer to keep image size down.
## lsphp${PHPVER}-ldap is the only extra ext we add (everything else WP needs
## ships in the prebuilt base). lsphp84 + lsphp85 don't ship imap or pspell
## from LiteSpeed — customers needing imap should pin to 8.3 or earlier.
RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
        gettext-base sudo cron \
        ca-certificates curl wget \
        mariadb-server memcached \
        lsphp${PHPVER}-ldap && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/* /var/cache/apt/archives/*

## Composer (matches the wp-cli pattern in the existing CAC Dockerfile —
## phar download, no `php install` pipe since lsphp's CLI mode is fine).
RUN curl -fsSL -o /usr/local/bin/composer https://getcomposer.org/download/latest-stable/composer.phar && \
    chmod +x /usr/local/bin/composer

## Our scripts + config templates layer in last (they change most often,
## keep them off the slow apt layer).
COPY ./scripts/entrypoint-litespeed.sh \
     ./scripts/create-vhost-litespeed.sh \
     ./scripts/detect-memory-litespeed.sh \
     ./scripts/install-lscache-wp.sh \
     ./scripts/log-rotate.sh \
     /scripts/
RUN chmod +x /scripts/*
COPY ./configs/litespeed/ /etc/lsws-templates/

## Apply our production lsphp ini overrides. Ask lsphp for its scan dir
## directly (varies by PHP minor version: 8.3/8.4/8.5 each have their own
## /usr/local/lsws/lsphpNN/etc/php/8.M/mods-available/). Dockerfile RUN uses
## /bin/sh so we explicitly `bash -c` for safer scripting.
RUN bash -c 'set -e; \
    SCAN_DIR=$(/usr/local/lsws/lsphp${PHPVER}/bin/lsphp -i 2>/dev/null | awk -F"=> " "/^Scan this dir/ {print \$2; exit}"); \
    mkdir -p "$SCAN_DIR"; \
    cp /etc/lsws-templates/lsphp-overrides.ini "$SCAN_DIR/99-prod-overrides.ini"; \
    echo "wrote overrides to $SCAN_DIR"'

## Disable the OLS WebAdmin port for customer-facing containers. Bind admin
## listener to loopback so it's unreachable even from the docker network.
RUN sed -i 's|^[[:space:]]*address[[:space:]]\+\*:|  address               127.0.0.1:|' \
        /usr/local/lsws/admin/conf/admin_config.conf 2>/dev/null || true

## Cron entry for log rotation (mirrors cac:phpXX).
RUN echo "15 */12 * * * root /scripts/log-rotate.sh" >> /etc/crontab

EXPOSE 80 443

## Healthcheck: the entrypoint drops a static /healthz into the customer
## docroot at boot, so this passes even before any customer files exist.
HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
  CMD curl -fsSk https://127.0.0.1/healthz || exit 1

ENTRYPOINT ["/scripts/entrypoint-litespeed.sh"]