docker-entrypoint.sh

#!/bin/bash
set -Eeuo pipefail

# This will be started as root, so the generated files can be copied when done

# Find --uid if it exists, parse and discard. Used to chown after.
# Ditto --folder, since this now copies we need to parse it out
ARGS=()
foundu=0
uid=1000
for var in "$@"; do
  if [ "$var" = '--uid' ]; then
    foundu=1
    continue
  fi
  if [ "$foundu" = '1' ]; then
    foundu=0
    if ! [[ $var =~ ^[0-9]+$ ]] ; then
      echo "error: Passed user ID is not a number, ignoring"
      continue
    fi
    uid="$var"
    continue
  fi
  ARGS+=( "$var" )
done

__sending=0
if [[ "$*" =~ "validator credentials set" ]] && [[ ! "$*" =~ "--prepare-offline" ]]; then
  if [ -f "/app/.eth/ethdo/change-operations.json" ]; then
    __sending=1
    cp /app/.eth/ethdo/change-operations.json /app
    chown ethdo:ethdo /app/change-operations.json
    echo "Scanning addresses: "
    __address=$(jq -r .[0].message.to_execution_address < /app/change-operations.json)
    echo "${__address}"
    __count=$(jq '. | length' < /app/change-operations.json)
    __addresses=$(jq -r .[].message.to_execution_address < /app/change-operations.json)
    # Check whether they're all the same
    __unique=1
    while IFS= read -r __check_address; do
      if ! [[ ${__address} =~ ${__check_address} ]]; then
        ((__unique++))
        __address="$__address $__check_address"
        echo "${__check_address}"
      fi
    done <<< "$__addresses"
    echo

    if [ "${__unique}" -eq 1 ]; then
      echo "You are about to change the withdrawal address(es) of ${__count} validators to Ethereum address ${__address}"
      echo "Please make TRIPLY sure that you control this address."
      echo
      read -rp "I have verified that I control ${__address}, change the withdrawal address (No/Yes): " yn
      case $yn in
        [Yy][Ee][Ss] ) ;;
        * ) echo "Aborting"; exit 0;;
      esac
    else
      echo "You are about to change the withdrawal addresses of ${__count} validators to ${__unique} different Ethereum addresses"
      echo "Please make TRIPLY sure that they are all correct."
      echo
      read -rp "I have verified that the addresses are correct, change the withdrawal addresses (No/Yes): " yn
      case $yn in
        [Yy][Ee][Ss] ) ;;
        * ) echo "Aborting"; exit 0;;
      esac
    fi
  else
    echo "No change-operations.json found in ./.eth/ethdo. Aborting."
    exit 0
  fi
fi

if [[ "$*" =~ "--offline" ]]; then
  if [ ! -f "/app/.eth/ethdo/offline-preparation.json" ]; then
    echo "Offline preparation file ./.eth/ethdo/offline-preparation.json not found"
    echo "Please create it, for example with ./ethd keys prepare-address-change, and try again"
    exit 1
  else
    cp /app/.eth/ethdo/offline-preparation.json /app
    chown ethdo:ethdo /app/offline-preparation.json
  fi
else
  # Get just the first CL_NODE
  ARGS=( "${ARGS[@]:0:1}" "--connection" "$(cut -d, -f1 <<<"${CL_NODE}")" "${ARGS[@]:1}" )
fi

gosu ethdo "${ARGS[@]}"
__result=$?
if [ "${__sending}" -eq 1 ]; then
  if [ "${__result}" -eq 0 ]; then
    echo "Change sent successfully"
  else
    # We actually won't get to here because of the set -e, but just in case
    echo "Something went wrong when sending the change, error code ${__result}"
  fi
fi

if [[ "$*" =~ "--prepare-offline" ]]; then
  if [ "${NETWORK}" = "mainnet" ]; then
    __butta="https://beaconcha.in"
  else
    __butta="https://${NETWORK}.beaconcha.in"
  fi
  cp -p /app/offline-preparation.json /app/.eth/ethdo/
  chown "$uid":"$uid" /app/.eth/ethdo/offline-preparation.json
  echo "The preparation file has been copied to ./.eth/ethdo/offline-preparation.json"
  echo "It contains a list of all validators on chain, $(jq .validators[].index </app/.eth/ethdo/offline-preparation.json | wc -l) in total"
  echo "You can verify that this matches the total validator count at ${__butta}/validators"
fi