Select domains from traefik's acme.json to delete

delete-traefik-acme-certificates.sh

#!/bin/bash

# tested with traefik v2.4.8

ACME_FILE="acme.json"

# get jq from https://stedolan.github.io/jq/
SELECTED_DOMAINS=$(jq -r '.letsencrypt.Certificates[].domain.main' "$ACME_FILE" | fzf -m --height '40%' --reverse --border)

if [[ -z "$SELECTED_DOMAINS" ]]; then
    echo "Nothing changed."
    exit
fi

cp --force -p --backup=numbered "$ACME_FILE" "$ACME_FILE"

cp -p "$ACME_FILE" "${ACME_FILE}.new"

for domain in $SELECTED_DOMAINS; do
    echo "Deleting certificate for '$domain'"
    # get sponge by installing the moreutils package
    jq "del(.letsencrypt.Certificates[] | select(.domain.main == \"$domain\"))" "${ACME_FILE}.new" | sponge "${ACME_FILE}.new"
done

cp --attributes-only --preserve=mode,ownership "$ACME_FILE" "${ACME_FILE}.new"

mv "${ACME_FILE}.new" "$ACME_FILE"