Dockerfile

FROM alpine:latest

# Install dependencies
RUN apk add --no-cache php5-mysqli php5-ctype php5-xml php5-gd php5-zlib php5-bz2 php5-zip php5-openssl php5-curl php5-opcache php5-json nginx php5-fpm supervisor

# Include keyring to verify download
COPY phpmyadmin.keyring /

# Calculate download URL
ENV VERSION 4.0.10.17
ENV URL https://files.phpmyadmin.net/phpMyAdmin/${VERSION}/phpMyAdmin-${VERSION}-all-languages.tar.gz

# Download tarball, verify it using gpg and extract
RUN set -x \
    && export GNUPGHOME="$(mktemp -d)" \
    && apk add --no-cache curl gnupg \
    && curl --output phpMyAdmin.tar.gz --location $URL \
    && apk del --no-cache curl gnupg \
    && rm -rf "$GNUPGHOME" \
    && tar xzf phpMyAdmin.tar.gz \
    && rm -f phpMyAdmin.tar.gz \
    && mv phpMyAdmin* /www \
    && rm -rf /www/js/jquery/src/ /www/js/openlayers/src/ /www/setup/ /www/sql/ /www/examples/ /www/test/ /www/po/

# Copy configuration
COPY config.inc.php /www/
COPY etc /etc/

# Copy main script
COPY run.sh /run.sh
RUN chmod u+rwx /run.sh

# Add volume for sessions to allow session persistence
VOLUME /sessions

# We expose phpMyAdmin on port 80
EXPOSE 80

ENTRYPOINT [ "/run.sh" ]
CMD ["phpmyadmin"]