Dockerfile

FROM alpine:3.18.4
LABEL maintainer="Fedor Borshev <fedor@borshev.com>"

RUN apk update && \
    apk --no-cache add dumb-init curl aws-cli supercronic && \
    apk --no-cache add mysql-client mariadb-connector-c

ENV MYSQLDUMP_OPTIONS --quick --no-create-db --add-drop-table --add-locks --allow-keywords --quote-names --disable-keys --single-transaction --create-options --comments --net_buffer_length=16384
ENV MYSQLDUMP_DATABASE **None**
ENV MYSQL_HOST **None**
ENV MYSQL_PORT 3306
ENV MYSQL_USER **None**
ENV MYSQL_PASSWORD **None**
ENV S3_ACCESS_KEY_ID **None**
ENV S3_SECRET_ACCESS_KEY **None**
ENV S3_BUCKET **None**
ENV S3_REGION us-west-1
ENV S3_ENDPOINT **None**
ENV S3_S3V4 no
ENV S3_PREFIX 'backup'
ENV S3_FILENAME **None**
ENV MULTI_DATABASES no
ENV SCHEDULE **None**
ENV SUCCESS_WEBHOOK **None**

ADD entrypoint.sh backup.sh /

HEALTHCHECK CMD curl --fail http://localhost:9746/health || exit 1

ENTRYPOINT ["/usr/bin/dumb-init", "--"]
CMD ["sh", "/entrypoint.sh"]