The script adds mirrors for the Alpine apk

Dockerfile example

FROM alpine

# You shoud install openssl for download from https host
...

# Adding mirrors
RUN wget https://raw.githubusercontent.com/xtimon/add_alpine_mirrors/master/add_mirrors.sh \
    && chmod +x add_mirrors.sh \
    && ./add_mirrors.sh

Note:

You can use your own repositories list by the environment MIRRORS_LIST (default value: http://rsync.alpinelinux.org/alpine/MIRRORS.txt)

You can limit repositories from the mirrors list by the environment MIRRORS_COUNT (default value: 5)

Dockerfile with environments example

FROM alpine

ENV MIRRORS_LIST="http://your_repo_list_address" \
    MIRRORS_COUNT=10

# You shoud install openssl for download from https host
...

# Adding mirrors
RUN wget https://raw.githubusercontent.com/xtimon/add_alpine_mirrors/master/add_mirrors.sh \
    && chmod +x add_mirrors.sh \
    && ./add_mirrors.sh