nextcloud-docker/.examples/dockerfiles/imap/fpm-alpine/Dockerfile

FROM nextcloud:fpm-alpine

RUN set -ex; \
    \
    apk add --no-cache --virtual .build-deps \
        $PHPIZE_DEPS \
        imap-dev \
        krb5-dev \
        openssl-dev \
    ; \
    \
    docker-php-ext-configure imap --with-kerberos --with-imap-ssl; \
    docker-php-ext-install imap; \
    \
    runDeps="$( \
        scanelf --needed --nobanner --format '%n#p' --recursive /usr/local/lib/php/extensions \
            | tr ',' '\n' \
            | sort -u \
            | awk 'system("[ -e /usr/local/lib/" $1 " ]") == 0 { next } { print "so:" $1 }' \
    )"; \
    apk add --virtual .nextcloud-phpext-rundeps $runDeps; \
    apk del .build-deps