docker-entrypoint-vc.sh

#!/usr/bin/env bash
set -Eeuo pipefail

if [ "$(id -u)" = '0' ]; then
  chown -R prysmvalidator:prysmvalidator /var/lib/prysm
  exec gosu prysmvalidator docker-entrypoint.sh "$@"
fi

if [[ "${NETWORK}" =~ ^https?:// ]]; then
  echo "Custom testnet at ${NETWORK}"
  repo=$(awk -F'/tree/' '{print $1}' <<< "${NETWORK}")
  branch=$(awk -F'/tree/' '{print $2}' <<< "${NETWORK}" | cut -d'/' -f1)
  config_dir=$(awk -F'/tree/' '{print $2}' <<< "${NETWORK}" | cut -d'/' -f2-)
  echo "This appears to be the ${repo} repo, branch ${branch} and config directory ${config_dir}."
  # For want of something more amazing, let's just fail if git fails to pull this
  set -e
  if [ ! -d "/var/lib/prysm/testnet/${config_dir}" ]; then
    mkdir -p /var/lib/prysm/testnet
    cd /var/lib/prysm/testnet
    git init --initial-branch="${branch}"
    git remote add origin "${repo}"
    git config core.sparseCheckout true
    echo "${config_dir}" > .git/info/sparse-checkout
    git pull origin "${branch}"
  fi
  set +e
  __network="--chain-config-file=/var/lib/prysm/testnet/${config_dir}/config.yaml"
else
  __network="--${NETWORK}"
fi

# Check whether we should use MEV Boost
if [ "${MEV_BOOST}" = "true" ]; then
  __mev_boost="--enable-builder"
  echo "MEV Boost enabled"
else
  __mev_boost=""
fi

# Check whether we should enable doppelganger protection
if [ "${DOPPELGANGER}" = "true" ]; then
  __doppel="--enable-doppelganger"
  echo "Doppelganger protection enabled, VC will pause for 2 epochs"
else
  __doppel=""
fi

# Web3signer URL
if [ "${WEB3SIGNER}" = "true" ]; then
  __w3s_url="--validators-external-signer-url http://web3signer:9000 \
  --validators-external-signer-public-keys http://web3signer:9000/api/v1/eth2/publicKeys \
  --validators-external-signer-key-file=/var/lib/prysm/w3s-keys.txt"

  if [ ! -f /var/lib/prysm/w3s-keys.txt ]; then
    touch /var/lib/prysm/w3s-keys.txt
  fi
else
  __w3s_url="--web --wallet-password-file /var/lib/prysm/password.txt"
fi

# Distributed attestation aggregation
if [ "${ENABLE_DIST_ATTESTATION_AGGR}" =  "true" ]; then
  __att_aggr="--distributed"
else
  __att_aggr=""
fi

if [ "${DEFAULT_GRAFFITI}" = "true" ]; then
# Word splitting is desired for the command line parameters
# shellcheck disable=SC2086
  exec "$@" ${__network} ${__w3s_url} ${__mev_boost} ${__doppel} ${__att_aggr} ${VC_EXTRAS}
else
# Word splitting is desired for the command line parameters
# shellcheck disable=SC2086
  exec "$@" ${__network} "--graffiti" "${GRAFFITI}" ${__w3s_url} ${__mev_boost} ${__doppel} ${__att_aggr} ${VC_EXTRAS}
fi