container-packing.sh

#!/bin/bash

settings() {
    rootdir="/export"
    excludes="/dev /proc /sys /corex ${rootdir}"

    ZFLIST_MNT="${rootdir}/flist"
    ZFLIST_HUB="https://playground.hub.grid.tf"
    # ZFLIST_BACKEND='{"host": "playground.hub.grid.tf", "port": 9910}'
    ZFLIST_HUB_TOKEN=kiUTd9jRjgt7QB6lRh2bcpNiC2UqvTLI

}

initialize() {
    mkdir -p "${rootdir}"
}

zflist() {
    wget https://github.com/threefoldtech/corex/releases/download/2.1.1/zflist-2.1.1-linux-amd64 -O ${rootdir}/zflist
    chmod +x ${rootdir}/zflist
}

prepare() {
    # closing any potential existing db
    # and creating a new one
    "${rootdir}/zflist" close
    "${rootdir}/zflist" init
}

packroot() {
    # pack root filesystem and exclude
    # local temporary directories or system directories
    for entry in /*; do
        if [[ " ${excludes[@]} " =~ " ${entry} " ]]; then
            # skip excluded directory
            continue
        fi

        if [ -d "${entry}" ]; then
            echo "Adding directory: ${entry}"
            "${rootdir}/zflist" mkdir "${entry}"

            if [ -z "$(ls -A ${entry})" ]; then
                # empty directory, skipping content
                continue
            fi

            "${rootdir}/zflist" prefetch "${entry}"
            "${rootdir}/zflist" putdir "${entry}" "${entry}"
        else
            echo "Adding file: ${entry}"
            "${rootdir}/zflist" put ${entry} /
        fi
    done
}

commit() {
    # commit flist
    "${rootdir}/zflist" commit "${rootdir}/export.flist"
}

settings
initialize
zflist
prepare
packroot
commit