#!/bin/bash
set -e
source ${GITLAB_RUNTIME_DIR}/env-defaults

SYSCONF_TEMPLATES_DIR="${GITLAB_RUNTIME_DIR}/config"
USERCONF_TEMPLATES_DIR="${GITLAB_DATA_DIR}/config"

GITLAB_CONFIG="${GITLAB_INSTALL_DIR}/config/gitlab.yml"
GITLAB_DATABASE_CONFIG="${GITLAB_INSTALL_DIR}/config/database.yml"
GITLAB_UNICORN_CONFIG="${GITLAB_INSTALL_DIR}/config/unicorn.rb"
GITLAB_SMTP_CONFIG="${GITLAB_INSTALL_DIR}/config/initializers/smtp_settings.rb"
GITLAB_RESQUE_CONFIG="${GITLAB_INSTALL_DIR}/config/resque.yml"
GITLAB_SECRETS_CONFIG="${GITLAB_INSTALL_DIR}/config/secrets.yml"
GITLAB_ROBOTS_CONFIG="${GITLAB_INSTALL_DIR}/public/robots.txt"
GITLAB_SHELL_CONFIG="${GITLAB_SHELL_INSTALL_DIR}/config.yml"
GITLAB_NGINX_CONFIG="/etc/nginx/sites-enabled/gitlab"
GITLAB_CI_NGINX_CONFIG="/etc/nginx/sites-enabled/gitlab_ci"

## Execute a command as GITLAB_USER
exec_as_git() {
  sudo -HEu ${GITLAB_USER} "$@"
}

## Copies configuration template to the destination as the specified USER
### Looks up for overrides in ${USERCONF_TEMPLATES_DIR} before using the defaults from ${SYSCONF_TEMPLATES_DIR}
# $1: copy-as user
# $2: source file
# $3: destination location
install_template() {
  USR=${1}
  SRC=${2}
  DEST=${3}
  if [[ -f ${USERCONF_TEMPLATES_DIR}/${SRC} ]]; then
    sudo -HEu ${USR} cp ${USERCONF_TEMPLATES_DIR}/${SRC} ${DEST}
  elif [[ -f ${SYSCONF_TEMPLATES_DIR}/${SRC} ]]; then
    sudo -HEu ${USR} cp ${SYSCONF_TEMPLATES_DIR}/${SRC} ${DEST}
  fi
}

gitlab_finalize_database_parameters() {
  # is a mysql or postgresql database linked?
  # requires that the mysql or postgresql containers have exposed
  # port 3306 and 5432 respectively.
  if [[ -n ${MYSQL_PORT_3306_TCP_ADDR} ]]; then
    DB_ADAPTER=${DB_ADAPTER:-mysql2}
    DB_HOST=${DB_HOST:-${MYSQL_PORT_3306_TCP_ADDR}}
    DB_PORT=${DB_PORT:-${MYSQL_PORT_3306_TCP_PORT}}

    # support for linked sameersbn/mysql image
    DB_USER=${DB_USER:-${MYSQL_ENV_DB_USER}}
    DB_PASS=${DB_PASS:-${MYSQL_ENV_DB_PASS}}
    DB_NAME=${DB_NAME:-${MYSQL_ENV_DB_NAME}}

    # support for linked orchardup/mysql and enturylink/mysql image
    # also supports official mysql image
    DB_USER=${DB_USER:-${MYSQL_ENV_MYSQL_USER}}
    DB_PASS=${DB_PASS:-${MYSQL_ENV_MYSQL_PASSWORD}}
    DB_NAME=${DB_NAME:-${MYSQL_ENV_MYSQL_DATABASE}}
  elif [[ -n ${POSTGRESQL_PORT_5432_TCP_ADDR} ]]; then
    DB_ADAPTER=${DB_ADAPTER:-postgresql}
    DB_HOST=${DB_HOST:-${POSTGRESQL_PORT_5432_TCP_ADDR}}
    DB_PORT=${DB_PORT:-${POSTGRESQL_PORT_5432_TCP_PORT}}

    # support for linked official postgres image
    DB_USER=${DB_USER:-${POSTGRESQL_ENV_POSTGRES_USER}}
    DB_PASS=${DB_PASS:-${POSTGRESQL_ENV_POSTGRES_PASSWORD}}
    DB_NAME=${DB_NAME:-${DB_USER}}

    # support for linked sameersbn/postgresql image
    DB_USER=${DB_USER:-${POSTGRESQL_ENV_DB_USER}}
    DB_PASS=${DB_PASS:-${POSTGRESQL_ENV_DB_PASS}}
    DB_NAME=${DB_NAME:-${POSTGRESQL_ENV_DB_NAME}}

    # support for linked orchardup/postgresql image
    DB_USER=${DB_USER:-${POSTGRESQL_ENV_POSTGRESQL_USER}}
    DB_PASS=${DB_PASS:-${POSTGRESQL_ENV_POSTGRESQL_PASS}}
    DB_NAME=${DB_NAME:-${POSTGRESQL_ENV_POSTGRESQL_DB}}

    # support for linked paintedfox/postgresql image
    DB_USER=${DB_USER:-${POSTGRESQL_ENV_USER}}
    DB_PASS=${DB_PASS:-${POSTGRESQL_ENV_PASS}}
    DB_NAME=${DB_NAME:-${POSTGRESQL_ENV_DB}}
  fi

  if [[ -z ${DB_HOST} ]]; then
    echo
    echo "ERROR: "
    echo "  Please configure the database connection."
    echo "  Refer http://git.io/wkYhyA for more information."
    echo "  Cannot continue without a database. Aborting..."
    echo
    return 1
  fi

  # set default port number if not specified
  DB_ADAPTER=${DB_ADAPTER:-postgresql}
  case ${DB_ADAPTER} in
    mysql2)
      DB_ENCODING=${DB_ENCODING:-utf8}
      DB_PORT=${DB_PORT:-3306}
      ;;
    postgresql)
      DB_ENCODING=${DB_ENCODING:-unicode}
      DB_PORT=${DB_PORT:-5432}
      ;;
    *)
      echo
      echo "ERROR: "
      echo "  Please specify the database type in use via the DB_ADAPTER configuration option."
      echo "  Accepted values are \"postgresql\" or \"mysql2\". Aborting..."
      echo
      return 1
      ;;
  esac

  # set default user and database
  DB_USER=${DB_USER:-root}
  DB_NAME=${DB_NAME:-gitlabhq_production}
}

gitlab_check_database_connection() {
  case ${DB_ADAPTER} in
    mysql2)
      prog="mysqladmin -h ${DB_HOST} -P ${DB_PORT} -u ${DB_USER} ${DB_PASS:+-p$DB_PASS} status"
      ;;
    postgresql)
      prog=$(find /usr/lib/postgresql/ -name pg_isready)
      prog="${prog} -h ${DB_HOST} -p ${DB_PORT} -U ${DB_USER} -d ${DB_NAME} -t 1"
      ;;
  esac
  timeout=60
  while ! ${prog} >/dev/null 2>&1
  do
    timeout=$(expr $timeout - 1)
    if [[ $timeout -eq 0 ]]; then
      echo
      echo "Could not connect to database server. Aborting..."
      return 1
    fi
    echo -n "."
    sleep 1
  done
  echo
}

gitlab_configure_database() {
  echo -n "Configuring gitlab::database"

  gitlab_finalize_database_parameters
  gitlab_check_database_connection

  exec_as_git sed -i "s|{{DB_ADAPTER}}|${DB_ADAPTER}|" ${GITLAB_DATABASE_CONFIG}
  exec_as_git sed -i "s|{{DB_ENCODING}}|${DB_ENCODING}|" ${GITLAB_DATABASE_CONFIG}
  exec_as_git sed -i "s|{{DB_HOST}}|${DB_HOST}|" ${GITLAB_DATABASE_CONFIG}
  exec_as_git sed -i "s|{{DB_PORT}}|${DB_PORT}|" ${GITLAB_DATABASE_CONFIG}
  exec_as_git sed -i "s|{{DB_NAME}}|${DB_NAME}|" ${GITLAB_DATABASE_CONFIG}
  exec_as_git sed -i "s|{{DB_USER}}|${DB_USER}|" ${GITLAB_DATABASE_CONFIG}
  exec_as_git sed -i "s|{{DB_PASS}}|${DB_PASS}|" ${GITLAB_DATABASE_CONFIG}
  exec_as_git sed -i "s|{{DB_POOL}}|${DB_POOL}|" ${GITLAB_DATABASE_CONFIG}

  if [[ ${DB_ADAPTER} == postgresql ]]; then
    exec_as_git sed -i "/reconnect: /d" ${GITLAB_DATABASE_CONFIG}
    exec_as_git sed -i "/collation: /d" ${GITLAB_DATABASE_CONFIG}
  fi
}

gitlab_finalize_redis_parameters() {
  # is a redis container linked?
  if [[ -n ${REDISIO_PORT_6379_TCP_ADDR} ]]; then
    REDIS_HOST=${REDIS_HOST:-${REDISIO_PORT_6379_TCP_ADDR}}
    REDIS_PORT=${REDIS_PORT:-${REDISIO_PORT_6379_TCP_PORT}}
  fi

  # set default redis port if not specified
  REDIS_PORT=${REDIS_PORT:-6379}

  if [[ -z ${REDIS_HOST} ]]; then
    echo
    echo "ERROR: "
    echo "  Please configure the redis connection."
    echo "  Refer http://git.io/PMnRSw for more information."
    echo "  Cannot continue without a redis connection. Aborting..."
    echo
    return 1
  fi
}

gitlab_check_redis_connection() {
  timeout=60
  while ! redis-cli -h ${REDIS_HOST} -p ${REDIS_PORT} ping >/dev/null 2>&1
  do
    timeout=$(expr $timeout - 1)
    if [[ $timeout -eq 0 ]]; then
      echo ""
      echo "Could not connect to redis server. Aborting..."
      return 1
    fi
    echo -n "."
    sleep 1
  done
  echo
}

gitlab_configure_redis() {
  echo -n "Configuring gitlab::redis"

  gitlab_finalize_redis_parameters
  gitlab_check_redis_connection

  exec_as_git sed -i "s|{{REDIS_HOST}}|${REDIS_HOST}|g" ${GITLAB_RESQUE_CONFIG}
  exec_as_git sed -i "s|{{REDIS_PORT}}|${REDIS_PORT}|g" ${GITLAB_RESQUE_CONFIG}
}

gitlab_configure_unicorn() {
  echo "Configuring gitlab::unicorn..."
  if [[ -n ${GITLAB_RELATIVE_URL_ROOT} ]]; then
    exec_as_git sed -i "s|{{GITLAB_RELATIVE_URL_ROOT}}|${GITLAB_RELATIVE_URL_ROOT}|" ${GITLAB_UNICORN_CONFIG}
  else
    exec_as_git sed -i "/{{GITLAB_RELATIVE_URL_ROOT}}/d" ${GITLAB_UNICORN_CONFIG}
  fi

  # configure workers
  exec_as_git sed -i "s|{{GITLAB_INSTALL_DIR}}|${GITLAB_INSTALL_DIR}|g" ${GITLAB_UNICORN_CONFIG}
  exec_as_git sed -i "s|{{UNICORN_WORKERS}}|${UNICORN_WORKERS}|" ${GITLAB_UNICORN_CONFIG}

  # configure timeout
  exec_as_git sed -i "s|{{UNICORN_TIMEOUT}}|${UNICORN_TIMEOUT}|" ${GITLAB_UNICORN_CONFIG}
}

gitlab_configure_timezone() {
  echo "Configuring gitlab::timezone..."
  GITLAB_TIMEZONE="$(echo "${GITLAB_TIMEZONE}" | sed 's|[&]|\\&|g')"
  exec_as_git sed -i "s|{{GITLAB_TIMEZONE}}|${GITLAB_TIMEZONE}|" ${GITLAB_CONFIG}
}

gitlab_configure_mail_delivery() {
  if [[ ${SMTP_ENABLED} == true ]]; then
    echo "Configuring gitlab::smtp_settings..."

    if [[ -n  ${SMTP_USER} ]]; then
      exec_as_git sed -i "s|{{SMTP_USER}}|${SMTP_USER}|" ${GITLAB_SMTP_CONFIG}
      if [[ -n  ${SMTP_PASS} ]]; then
        exec_as_git sed -i "s|{{SMTP_PASS}}|${SMTP_PASS}|" ${GITLAB_SMTP_CONFIG}
      else
        exec_as_git sed -i "/{{SMTP_PASS}}/d" ${GITLAB_SMTP_CONFIG}
      fi
    else
      exec_as_git sed -i "/{{SMTP_USER}}/d" ${GITLAB_SMTP_CONFIG}
      exec_as_git sed -i "/{{SMTP_PASS}}/d" ${GITLAB_SMTP_CONFIG}
    fi

    exec_as_git sed -i "s|{{SMTP_HOST}}|${SMTP_HOST}|" ${GITLAB_SMTP_CONFIG}
    exec_as_git sed -i "s|{{SMTP_PORT}}|${SMTP_PORT}|" ${GITLAB_SMTP_CONFIG}
    exec_as_git sed -i "s|{{SMTP_DOMAIN}}|${SMTP_DOMAIN}|" ${GITLAB_SMTP_CONFIG}
    exec_as_git sed -i "s|{{SMTP_STARTTLS}}|${SMTP_STARTTLS}|" ${GITLAB_SMTP_CONFIG}
    exec_as_git sed -i "s|{{SMTP_TLS}}|${SMTP_TLS}|" ${GITLAB_SMTP_CONFIG}
    exec_as_git sed -i "s|{{SMTP_OPENSSL_VERIFY_MODE}}|${SMTP_OPENSSL_VERIFY_MODE}|" ${GITLAB_SMTP_CONFIG}

    case ${SMTP_AUTHENTICATION} in
      "") exec_as_git sed -i "/{{SMTP_AUTHENTICATION}}/d" ${GITLAB_SMTP_CONFIG} ;;
      *) exec_as_git sed -i "s|{{SMTP_AUTHENTICATION}}|${SMTP_AUTHENTICATION}|" ${GITLAB_SMTP_CONFIG} ;;
    esac

    if [[ ${SMTP_CA_ENABLED} == true ]]; then
      if [[ -d ${SMTP_CA_PATH} ]]; then
        exec_as_git sed -i "s|{{SMTP_CA_PATH}}|${SMTP_CA_PATH}|" ${GITLAB_SMTP_CONFIG}
      fi
      if [[ -f ${SMTP_CA_FILE} ]]; then
        exec_as_git sed -i "s|{{SMTP_CA_FILE}}|${SMTP_CA_FILE}|" ${GITLAB_SMTP_CONFIG}
      fi
    else
      exec_as_git sed -i "/{{SMTP_CA_PATH}}/d" ${GITLAB_SMTP_CONFIG}
      exec_as_git sed -i "/{{SMTP_CA_FILE}}/d" ${GITLAB_SMTP_CONFIG}
    fi
  fi

  exec_as_git sed -i "s|{{GITLAB_EMAIL_ENABLED}}|${GITLAB_EMAIL_ENABLED}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_EMAIL}}|${GITLAB_EMAIL}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_EMAIL_DISPLAY_NAME}}|${GITLAB_EMAIL_DISPLAY_NAME}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_EMAIL_REPLY_TO}}|${GITLAB_EMAIL_REPLY_TO}|" ${GITLAB_CONFIG}
}

gitlab_configure_mailroom() {
  if [[ ${IMAP_ENABLED} == true ]]; then
    echo "Configuring gitlab::incoming_email..."
    exec_as_git sed -i "s|{{GITLAB_INCOMING_EMAIL_ADDRESS}}|${GITLAB_INCOMING_EMAIL_ADDRESS}|" ${GITLAB_CONFIG}

    if [[ -n ${IMAP_USER} ]]; then
      exec_as_git sed -i "s|{{IMAP_USER}}|${IMAP_USER}|" ${GITLAB_CONFIG}
      if [[ -n ${IMAP_PASS} ]]; then
        exec_as_git sed -i "s|{{IMAP_PASS}}|${IMAP_PASS}|" ${GITLAB_CONFIG}
      else
        exec_as_git sed -i "/{{IMAP_PASS}}/d" ${GITLAB_CONFIG}
      fi
    else
      exec_as_git sed -i "/{{IMAP_USER}}/d" ${GITLAB_CONFIG}
      exec_as_git sed -i "/{{IMAP_PASS}}/d" ${GITLAB_CONFIG}
    fi

    exec_as_git sed -i "s|{{IMAP_HOST}}|${IMAP_HOST}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{IMAP_PORT}}|${IMAP_PORT}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{IMAP_SSL}}|${IMAP_SSL}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{IMAP_STARTTLS}}|${IMAP_STARTTLS}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{IMAP_MAILBOX}}|${IMAP_MAILBOX}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/{{IMAP_USER}}/d" ${GITLAB_CONFIG}
    exec_as_git sed -i "/{{IMAP_PASS}}/d" ${GITLAB_CONFIG}
    exec_as_git sed -i "/{{IMAP_HOST}}/d" ${GITLAB_CONFIG}
    exec_as_git sed -i "/{{IMAP_PORT}}/d" ${GITLAB_CONFIG}
    exec_as_git sed -i "/{{IMAP_SSL}}/d" ${GITLAB_CONFIG}
    exec_as_git sed -i "/{{IMAP_STARTTLS}}/d" ${GITLAB_CONFIG}
    exec_as_git sed -i "/{{IMAP_MAILBOX}}/d" ${GITLAB_CONFIG}
  fi
  exec_as_git sed -i "s|{{GITLAB_INCOMING_EMAIL_ENABLED}}|${GITLAB_INCOMING_EMAIL_ENABLED}|" ${GITLAB_CONFIG}

  # enable/disable startup of mailroom
  echo "mail_room_enabled=${GITLAB_INCOMING_EMAIL_ENABLED}" >> /etc/default/gitlab
  sed -i "s|{{GITLAB_INCOMING_EMAIL_ENABLED}}|${GITLAB_INCOMING_EMAIL_ENABLED}|" /etc/supervisor/conf.d/mail_room.conf
}

gitlab_configure_ldap() {
  echo "Configuring gitlab::ldap..."
  exec_as_git sed -i "s|{{LDAP_ENABLED}}|${LDAP_ENABLED}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_HOST}}|${LDAP_HOST}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_PORT}}|${LDAP_PORT}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_UID}}|${LDAP_UID}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_METHOD}}|${LDAP_METHOD}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_BIND_DN}}|${LDAP_BIND_DN}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_PASS}}|${LDAP_PASS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_ACTIVE_DIRECTORY}}|${LDAP_ACTIVE_DIRECTORY}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_ALLOW_USERNAME_OR_EMAIL_LOGIN}}|${LDAP_ALLOW_USERNAME_OR_EMAIL_LOGIN}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_BLOCK_AUTO_CREATED_USERS}}|${LDAP_BLOCK_AUTO_CREATED_USERS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_BASE}}|${LDAP_BASE}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s/{{LDAP_USER_FILTER}}/${LDAP_USER_FILTER}/" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{LDAP_LABEL}}|${LDAP_LABEL}|" ${GITLAB_CONFIG}
}

gitlab_configure_oauth_google() {
  if [[ -n ${OAUTH_GOOGLE_API_KEY} && -n ${OAUTH_GOOGLE_APP_SECRET} ]]; then
    echo "Configuring gitlab::oauth::google..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_GOOGLE_API_KEY}}|${OAUTH_GOOGLE_API_KEY}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_GOOGLE_APP_SECRET}}|${OAUTH_GOOGLE_APP_SECRET}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_GOOGLE_RESTRICT_DOMAIN}}|${OAUTH_GOOGLE_RESTRICT_DOMAIN}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_GOOGLE_APPROVAL_PROMPT}}||" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'google_oauth2'/,/{{OAUTH_GOOGLE_RESTRICT_DOMAIN}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth_facebook() {
  if [[ -n ${OAUTH_FACEBOOK_API_KEY} && -n ${OAUTH_FACEBOOK_APP_SECRET} ]]; then
    echo "Configuring gitlab::oauth::facebook..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_FACEBOOK_API_KEY}}|${OAUTH_FACEBOOK_API_KEY}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_FACEBOOK_APP_SECRET}}|${OAUTH_FACEBOOK_APP_SECRET}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'facebook'/,/{{OAUTH_FACEBOOK_APP_SECRET}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth_twitter() {
  if [[ -n ${OAUTH_TWITTER_API_KEY} && -n ${OAUTH_TWITTER_APP_SECRET} ]]; then
    echo "Configuring gitlab::oauth::twitter..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_TWITTER_API_KEY}}|${OAUTH_TWITTER_API_KEY}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_TWITTER_APP_SECRET}}|${OAUTH_TWITTER_APP_SECRET}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'twitter'/,/{{OAUTH_TWITTER_APP_SECRET}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth_github() {
  if [[ -n ${OAUTH_GITHUB_API_KEY} && -n ${OAUTH_GITHUB_APP_SECRET} ]]; then
    echo "Configuring gitlab::oauth::github..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_GITHUB_API_KEY}}|${OAUTH_GITHUB_API_KEY}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_GITHUB_APP_SECRET}}|${OAUTH_GITHUB_APP_SECRET}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_GITHUB_SCOPE}}|user:email|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'github'/,/{{OAUTH_GITHUB_SCOPE}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth_gitlab() {
  if [[ -n ${OAUTH_GITLAB_API_KEY} && -n ${OAUTH_GITLAB_APP_SECRET} ]]; then
    echo "Configuring gitlab::oauth::gitlab..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_GITLAB_API_KEY}}|${OAUTH_GITLAB_API_KEY}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_GITLAB_APP_SECRET}}|${OAUTH_GITLAB_APP_SECRET}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_GITLAB_SCOPE}}|api|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'gitlab'/,/{{OAUTH_GITLAB_SCOPE}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth_bitbucket() {
  if [[ -n ${OAUTH_BITBUCKET_API_KEY} && -n ${OAUTH_BITBUCKET_APP_SECRET} ]]; then
    echo "Configuring gitlab::oauth::bitbucket..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_BITBUCKET_API_KEY}}|${OAUTH_BITBUCKET_API_KEY}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_BITBUCKET_APP_SECRET}}|${OAUTH_BITBUCKET_APP_SECRET}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'bitbucket'/,/{{OAUTH_BITBUCKET_APP_SECRET}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth_saml() {
  if [[ -n ${OAUTH_SAML_ASSERTION_CONSUMER_SERVICE_URL} && \
        -n ${OAUTH_SAML_IDP_CERT_FINGERPRINT} && \
        -n ${OAUTH_SAML_IDP_SSO_TARGET_URL} && \
        -n ${OAUTH_SAML_ISSUER} && \
        -n ${OAUTH_SAML_NAME_IDENTIFIER_FORMAT} ]]; then
    echo "Configuring gitlab::oauth::saml..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_SAML_LABEL}}|${OAUTH_SAML_LABEL}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_SAML_ASSERTION_CONSUMER_SERVICE_URL}}|${OAUTH_SAML_ASSERTION_CONSUMER_SERVICE_URL}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_SAML_IDP_CERT_FINGERPRINT}}|${OAUTH_SAML_IDP_CERT_FINGERPRINT}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_SAML_IDP_SSO_TARGET_URL}}|${OAUTH_SAML_IDP_SSO_TARGET_URL}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_SAML_ISSUER}}|${OAUTH_SAML_ISSUER}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_SAML_NAME_IDENTIFIER_FORMAT}}|${OAUTH_SAML_NAME_IDENTIFIER_FORMAT}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'saml'/,/{{OAUTH_SAML_NAME_IDENTIFIER_FORMAT}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth_crowd() {
  if [[ -n ${OAUTH_CROWD_SERVER_URL} && \
        -n ${OAUTH_CROWD_APP_NAME} && \
        -n ${OAUTH_CROWD_APP_PASSWORD} ]]; then
    echo "Configuring gitlab::oauth::crowd..."
    OAUTH_ENABLED=${OAUTH_ENABLED:-true}
    exec_as_git sed -i "s|{{OAUTH_CROWD_SERVER_URL}}|${OAUTH_CROWD_SERVER_URL}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_CROWD_APP_NAME}}|${OAUTH_CROWD_APP_NAME}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{OAUTH_CROWD_APP_PASSWORD}}|${OAUTH_CROWD_APP_PASSWORD}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/name: 'crowd'/,/{{OAUTH_CROWD_APP_PASSWORD}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_oauth() {
  echo "Configuring gitlab::oauth..."

  gitlab_configure_oauth_google
  gitlab_configure_oauth_facebook
  gitlab_configure_oauth_twitter
  gitlab_configure_oauth_github
  gitlab_configure_oauth_gitlab
  gitlab_configure_oauth_bitbucket
  gitlab_configure_oauth_saml
  gitlab_configure_oauth_crowd

  OAUTH_ENABLED=${OAUTH_ENABLED:-false}
  exec_as_git sed -i "s|{{OAUTH_ENABLED}}|${OAUTH_ENABLED}|" ${GITLAB_CONFIG}

  exec_as_git sed -i "s|{{OAUTH_ALLOW_SSO}}|${OAUTH_ALLOW_SSO}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{OAUTH_BLOCK_AUTO_CREATED_USERS}}|${OAUTH_BLOCK_AUTO_CREATED_USERS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{OAUTH_AUTO_LINK_LDAP_USER}}|${OAUTH_AUTO_LINK_LDAP_USER}|" ${GITLAB_CONFIG}

  case ${OAUTH_AUTO_SIGN_IN_WITH_PROVIDER} in
    google_oauth2|facebook|twitter|github|gitlab|bitbucket|saml|crowd)
      exec_as_git sed -i "s|{{OAUTH_AUTO_SIGN_IN_WITH_PROVIDER}}|${OAUTH_AUTO_SIGN_IN_WITH_PROVIDER}|" ${GITLAB_CONFIG}
      ;;
    *)
      exec_as_git sed -i "/{{OAUTH_AUTO_SIGN_IN_WITH_PROVIDER}}/d" ${GITLAB_CONFIG}
      ;;
  esac
}

gitlab_configure_secrets() {
  echo "Configuring gitlab::secrets..."
  if [[ -z $GITLAB_SECRETS_DB_KEY_BASE ]]; then
    echo "ERROR: "
    echo "  Please configure the GITLAB_SECRETS_DB_KEY_BASE parameter."
    echo "  Cannot continue. Aborting..."
    return 1
  fi

  exec_as_git sed -i "s|{{GITLAB_SECRETS_DB_KEY_BASE}}|${GITLAB_SECRETS_DB_KEY_BASE}|" ${GITLAB_SECRETS_CONFIG}
}

gitlab_configure_sidekiq() {
  echo "Configuring gitlab::sidekiq..."
  # configure sidekiq concurrency
  sed -i "s|{{SIDEKIQ_CONCURRENCY}}|${SIDEKIQ_CONCURRENCY}|" /etc/supervisor/conf.d/sidekiq.conf

  # configure sidekiq shutdown timeout
  sed -i "s|{{SIDEKIQ_SHUTDOWN_TIMEOUT}}|${SIDEKIQ_SHUTDOWN_TIMEOUT}|" /etc/supervisor/conf.d/sidekiq.conf

  # enable SidekiqMemoryKiller
  ## The MemoryKiller is enabled by gitlab if the `SIDEKIQ_MEMORY_KILLER_MAX_RSS` is
  ## defined in the programs environment and has a non-zero value.
  ##
  ## Simply exporting the variable makes it available in the programs environment and
  ## therefore should enable the MemoryKiller.
  ##
  ## Every other MemoryKiller option specified in the docker env will automatically
  ## be exported, so why bother
  export SIDEKIQ_MEMORY_KILLER_MAX_RSS
}

gitlab_configure_backups_cron() {
  case ${GITLAB_BACKUPS} in
    daily|weekly|monthly)
      echo "Configuring gitlab::backups::cron..."
      read hour min <<< ${GITLAB_BACKUP_TIME//[:]/ }
      day_of_month=*
      month=*
      day_of_week=*
      case ${GITLAB_BACKUPS} in
        daily) ;;
        weekly) day_of_week=0 ;;
        monthly) day_of_month=01 ;;
      esac
      exec_as_git cat >> /tmp/cron.${GITLAB_USER} <<EOF
# Automatic Backups ($GITLAB_BACKUPS)
$min $hour $day_of_month $month $day_of_week /bin/bash -l -c 'cd ${GITLAB_INSTALL_DIR} && bundle exec rake gitlab:backup:create RAILS_ENV=${RAILS_ENV}'
EOF
      crontab -u ${GITLAB_USER} /tmp/cron.${GITLAB_USER}
      rm -rf /tmp/cron.${GITLAB_USER}
      ;;
  esac
}

gitlab_configure_backups_aws() {
  case ${AWS_BACKUPS} in
    true)
      echo "Configuring gitlab::backups::aws..."
      if [[ -z ${AWS_BACKUP_REGION} || -z ${AWS_BACKUP_ACCESS_KEY_ID} || -z ${AWS_BACKUP_SECRET_ACCESS_KEY} || -z ${AWS_BACKUP_BUCKET} ]]; then
        printf "\nMissing AWS options. Aborting...\n"
        return 1
      fi
      exec_as_git sed -i "s|{{AWS_BACKUP_REGION}}|${AWS_BACKUP_REGION}|" ${GITLAB_CONFIG}
      exec_as_git sed -i "s|{{AWS_BACKUP_ACCESS_KEY_ID}}|${AWS_BACKUP_ACCESS_KEY_ID}|" ${GITLAB_CONFIG}
      exec_as_git sed -i "s|{{AWS_BACKUP_SECRET_ACCESS_KEY}}|${AWS_BACKUP_SECRET_ACCESS_KEY}|" ${GITLAB_CONFIG}
      exec_as_git sed -i "s|{{AWS_BACKUP_BUCKET}}|${AWS_BACKUP_BUCKET}|" ${GITLAB_CONFIG}
      ;;
    *)
      exec_as_git sed -i "/upload:/,/remote_directory:/d" ${GITLAB_CONFIG}
      ;;
  esac
}

gitlab_configure_backups() {
  echo "Configuring gitlab::backups..."
  exec_as_git sed -i "s|{{GITLAB_BACKUP_DIR}}|${GITLAB_BACKUP_DIR}|g" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_BACKUP_EXPIRY}}|${GITLAB_BACKUP_EXPIRY}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_BACKUP_PG_SCHEMA}}|${GITLAB_BACKUP_PG_SCHEMA}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_BACKUP_ARCHIVE_PERMISSIONS}}|${GITLAB_BACKUP_ARCHIVE_PERMISSIONS}|" ${GITLAB_CONFIG}

  gitlab_configure_backups_cron
  gitlab_configure_backups_aws
}

gitlab_configure_gravatar() {
  exec_as_git sed -i "s|{{GITLAB_GRAVATAR_ENABLED}}|${GITLAB_GRAVATAR_ENABLED}|" ${GITLAB_CONFIG}

  if [[ -n ${GITLAB_GRAVATAR_HTTP_URL} ]]; then
    echo "Configuring gitlab::gravatar::http..."
    GITLAB_GRAVATAR_HTTP_URL="$(echo "${GITLAB_GRAVATAR_HTTP_URL}" | sed 's|[&]|\\&|g')"
    exec_as_git sed -i "s|{{GITLAB_GRAVATAR_HTTP_URL}}|${GITLAB_GRAVATAR_HTTP_URL}|g" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/{{GITLAB_GRAVATAR_HTTP_URL}}/d" ${GITLAB_CONFIG}
  fi

  if [[ -n ${GITLAB_GRAVATAR_HTTPS_URL} ]]; then
    echo "Configuring gitlab::gravatar::https..."
    GITLAB_GRAVATAR_HTTPS_URL="$(echo "${GITLAB_GRAVATAR_HTTPS_URL}" | sed 's|[&]|\\&|g')"
    exec_as_git sed -i "s|{{GITLAB_GRAVATAR_HTTPS_URL}}|${GITLAB_GRAVATAR_HTTPS_URL}|g" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/{{GITLAB_GRAVATAR_HTTPS_URL}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_analytics_google() {
  if [[ -n ${GOOGLE_ANALYTICS_ID} ]]; then
  echo "Configuring gitlab::analytics:google..."
    exec_as_git sed -i "s|{{GOOGLE_ANALYTICS_ID}}|${GOOGLE_ANALYTICS_ID}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/{{GOOGLE_ANALYTICS_ID}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_analytics_piwik() {
  if [[ -n ${PIWIK_URL} && -n ${PIWIK_SITE_ID} ]]; then
    echo "Configuring gitlab::analytics:piwik..."
    exec_as_git sed -i "s|{{PIWIK_URL}}|${PIWIK_URL}|" ${GITLAB_CONFIG}
    exec_as_git sed -i "s|{{PIWIK_SITE_ID}}|${PIWIK_SITE_ID}|" ${GITLAB_CONFIG}
  else
    exec_as_git sed -i "/{{PIWIK_URL}}/d" ${GITLAB_CONFIG}
    exec_as_git sed -i "/{{PIWIK_SITE_ID}}/d" ${GITLAB_CONFIG}
  fi
}

gitlab_configure_analytics() {
  gitlab_configure_analytics_google
  gitlab_configure_analytics_piwik
}

gitlab_configure_rack_attack() {
  echo "Configuring gitlab::rack_attack..."
  exec_as_git sed -i "s|{{RACK_ATTACK_ENABLED}}|${RACK_ATTACK_ENABLED}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{RACK_ATTACK_WHITELIST}}|${RACK_ATTACK_WHITELIST}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{RACK_ATTACK_MAXRETRY}}|${RACK_ATTACK_MAXRETRY}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{RACK_ATTACK_FINDTIME}}|${RACK_ATTACK_FINDTIME}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{RACK_ATTACK_BANTIME}}|${RACK_ATTACK_BANTIME}|" ${GITLAB_CONFIG}
}

gitlab_configure_ci() {
  echo "Configuring gitlab::ci..."
  exec_as_git sed -i "s|{{GITLAB_NOTIFY_ON_BROKEN_BUILDS}}|${GITLAB_NOTIFY_ON_BROKEN_BUILDS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_NOTIFY_PUSHER}}|${GITLAB_NOTIFY_PUSHER}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_BUILDS_DIR}}|${GITLAB_BUILDS_DIR}|g" ${GITLAB_CONFIG}
}

gitlab_configure_artifacts() {
  echo "Configuring gitlab::artifacts..."
  exec_as_git sed -i "s|{{GITLAB_ARTIFACTS_ENABLED}}|${GITLAB_ARTIFACTS_ENABLED}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_ARTIFACTS_DIR}}|${GITLAB_ARTIFACTS_DIR}|g" ${GITLAB_CONFIG}
}

gitlab_configure_lfs() {
  echo "Configuring gitlab::lfs..."
  exec_as_git sed -i "s|{{GITLAB_LFS_ENABLED}}|${GITLAB_LFS_ENABLED}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_LFS_OBJECTS_DIR}}|${GITLAB_LFS_OBJECTS_DIR}|g" ${GITLAB_CONFIG}
}

gitlab_configure_project_features() {
  echo "Configuring gitlab::project_features..."
  exec_as_git sed -i "s|{{GITLAB_PROJECTS_ISSUES}}|${GITLAB_PROJECTS_ISSUES}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_PROJECTS_MERGE_REQUESTS}}|${GITLAB_PROJECTS_MERGE_REQUESTS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_PROJECTS_WIKI}}|${GITLAB_PROJECTS_WIKI}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_PROJECTS_SNIPPETS}}|${GITLAB_PROJECTS_SNIPPETS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_PROJECTS_BUILDS}}|${GITLAB_PROJECTS_BUILDS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_WEBHOOK_TIMEOUT}}|${GITLAB_WEBHOOK_TIMEOUT}|" ${GITLAB_CONFIG}
}

nginx_configure_gitlab_ssl() {
  if [[ ${GITLAB_HTTPS} == true && -f ${SSL_CERTIFICATE_PATH} && -f ${SSL_KEY_PATH} && -f ${SSL_DHPARAM_PATH} ]]; then
    echo "Configuring nginx::gitlab::ssl..."
    sed -i "s|{{SSL_CERTIFICATE_PATH}}|${SSL_CERTIFICATE_PATH}|" ${GITLAB_NGINX_CONFIG}
    sed -i "s|{{SSL_KEY_PATH}}|${SSL_KEY_PATH}|" ${GITLAB_NGINX_CONFIG}
    sed -i "s|{{SSL_DHPARAM_PATH}}|${SSL_DHPARAM_PATH}|" ${GITLAB_NGINX_CONFIG}
    sed -i "s|{{SSL_VERIFY_CLIENT}}|${SSL_VERIFY_CLIENT}|" ${GITLAB_NGINX_CONFIG}
    if [[ -f ${CA_CERTIFICATES_PATH} ]]; then
      sed -i "s|{{CA_CERTIFICATES_PATH}}|${CA_CERTIFICATES_PATH}|" ${GITLAB_NGINX_CONFIG}
    else
      sed -i "/{{CA_CERTIFICATES_PATH}}/d" ${GITLAB_NGINX_CONFIG}
    fi

    if [[ ${GITLAB_HTTPS_HSTS_ENABLED} == true ]]; then
      sed -i "s|{{GITLAB_HTTPS_HSTS_MAXAGE}}|${GITLAB_HTTPS_HSTS_MAXAGE}|" ${GITLAB_NGINX_CONFIG}
    else
      sed -i "/{{GITLAB_HTTPS_HSTS_MAXAGE}}/d" ${GITLAB_NGINX_CONFIG}
    fi
  fi
}

nginx_configure_gitlab_relative_url() {
  if [[ -n ${GITLAB_RELATIVE_URL_ROOT} ]]; then
    echo "Configuring nginx::gitlab::relative_url..."
    sed -i "s|{{GITLAB_RELATIVE_URL_ROOT}}|${GITLAB_RELATIVE_URL_ROOT}|g" ${GITLAB_NGINX_CONFIG}
    sed -i "s|{{GITLAB_RELATIVE_URL_ROOT__with_trailing_slash}}|${GITLAB_RELATIVE_URL_ROOT}/|g" ${GITLAB_NGINX_CONFIG}
  else
    sed -i "s|{{GITLAB_RELATIVE_URL_ROOT}}|/|" ${GITLAB_NGINX_CONFIG}
    sed -i "s|{{GITLAB_RELATIVE_URL_ROOT__with_trailing_slash}}|/|g" ${GITLAB_NGINX_CONFIG}
  fi
}

nginx_configure_gitlab_ipv6() {
  if [[ ! -f /proc/net/if_inet6 ]]; then
    # disable ipv6 support
    sed -i "/listen \[::\]:80/d" ${GITLAB_NGINX_CONFIG}
    sed -i "/listen \[::\]:443/d" ${GITLAB_NGINX_CONFIG}
  fi
}

nginx_configure_gitlab() {
  echo "Configuring nginx::gitlab..."
  sed -i "s|{{GITLAB_INSTALL_DIR}}|${GITLAB_INSTALL_DIR}|g" ${GITLAB_NGINX_CONFIG}
  sed -i "s|{{GITLAB_LOG_DIR}}|${GITLAB_LOG_DIR}|g" ${GITLAB_NGINX_CONFIG}
  sed -i "s|{{YOUR_SERVER_FQDN}}|${GITLAB_HOST}|" ${GITLAB_NGINX_CONFIG}
  sed -i "s|{{GITLAB_PORT}}|${GITLAB_PORT}|" ${GITLAB_NGINX_CONFIG}

  sed -i "s|{{NGINX_PROXY_BUFFERING}}|${NGINX_PROXY_BUFFERING}|g" ${GITLAB_NGINX_CONFIG}
  sed -i "s|{{NGINX_ACCEL_BUFFERING}}|${NGINX_ACCEL_BUFFERING}|g" ${GITLAB_NGINX_CONFIG}
  sed -i "s|{{NGINX_MAX_UPLOAD_SIZE}}|${NGINX_MAX_UPLOAD_SIZE}|" ${GITLAB_NGINX_CONFIG}
  sed -i "s|{{NGINX_X_FORWARDED_PROTO}}|${NGINX_X_FORWARDED_PROTO}|g" ${GITLAB_NGINX_CONFIG}

  nginx_configure_gitlab_ssl
  nginx_configure_gitlab_relative_url
  nginx_configure_gitlab_ipv6
}

nginx_configure_gitlab_ci() {
  if [[ -n $GITLAB_CI_HOST ]]; then
    echo "Configuring nginx::gitlab_ci..."
    sed -i "s|{{GITLAB_LOG_DIR}}|${GITLAB_LOG_DIR}|g" ${GITLAB_CI_NGINX_CONFIG}
    sed -i "s|{{GITLAB_HOST}}|${GITLAB_HOST}|g" ${GITLAB_CI_NGINX_CONFIG}
    sed -i "s|{{GITLAB_CI_HOST}}|${GITLAB_CI_HOST}|" ${GITLAB_CI_NGINX_CONFIG}

    DNS_RESOLVERS=$(cat /etc/resolv.conf  | grep '^\s*nameserver' | awk '{print $2}' ORS=' ')
    sed -i "s|{{DNS_RESOLVERS}}|${DNS_RESOLVERS}|" ${GITLAB_CI_NGINX_CONFIG}
  fi
}

#   _|_|_|              _|        _|  _|
#   _|    _|  _|    _|  _|_|_|    _|        _|_|_|
#   _|_|_|    _|    _|  _|    _|  _|  _|  _|
#   _|        _|    _|  _|    _|  _|  _|  _|
#   _|          _|_|_|  _|_|_|    _|  _|    _|_|_|

map_uidgid() {
  USERMAP_ORIG_UID=$(id -u ${GITLAB_USER})
  USERMAP_ORIG_GID=$(id -g ${GITLAB_USER})
  USERMAP_GID=${USERMAP_GID:-${USERMAP_UID:-$USERMAP_ORIG_GID}}
  USERMAP_UID=${USERMAP_UID:-$USERMAP_ORIG_UID}
  if [[ ${USERMAP_UID} != ${USERMAP_ORIG_UID} ]] || [[ ${USERMAP_GID} != ${USERMAP_ORIG_GID} ]]; then
    echo "Mapping UID and GID for ${GITLAB_USER}:${GITLAB_USER} to $USERMAP_UID:$USERMAP_GID"
    groupmod -g ${USERMAP_GID} ${GITLAB_USER}
    sed -i -e "s|:${USERMAP_ORIG_UID}:${USERMAP_GID}:|:${USERMAP_UID}:${USERMAP_GID}:|" /etc/passwd
    find ${GITLAB_HOME} -path ${GITLAB_DATA_DIR}/\* -prune -o -print0 | xargs -0 chown -h ${GITLAB_USER}:${GITLAB_USER}
  fi
}

update_ca_certificates() {
  if [[ -f ${SSL_CERTIFICATE_PATH} || -f ${CA_CERTIFICATES_PATH} ]]; then
    echo "Updating CA certificates..."
    [[ -f ${SSL_CERTIFICATE_PATH} ]] && cp "${SSL_CERTIFICATE_PATH}" /usr/local/share/ca-certificates/gitlab.crt
    [[ -f ${CA_CERTIFICATES_PATH} ]] && cp "${CA_CERTIFICATES_PATH}" /usr/local/share/ca-certificates/ca.crt
    update-ca-certificates --fresh >/dev/null
  fi
}

initialize_logdir() {
  echo "Initializing logdir..."
  mkdir -p ${GITLAB_LOG_DIR}/supervisor
  chmod -R 0755 ${GITLAB_LOG_DIR}/supervisor
  chown -R root:root ${GITLAB_LOG_DIR}/supervisor

  mkdir -p ${GITLAB_LOG_DIR}/nginx
  chmod -R 0755 ${GITLAB_LOG_DIR}/nginx
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_LOG_DIR}/nginx

  mkdir -p ${GITLAB_LOG_DIR}/gitlab
  chmod -R 0755 ${GITLAB_LOG_DIR}/gitlab
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_LOG_DIR}/gitlab

  mkdir -p ${GITLAB_LOG_DIR}/gitlab-shell
  chmod -R 0755 ${GITLAB_LOG_DIR}/gitlab-shell
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_LOG_DIR}/gitlab-shell
}

initialize_datadir() {
  echo "Initializing datadir..."
  chmod 755 ${GITLAB_DATA_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_DATA_DIR}

  # create the ssh directory for server keys
  mkdir -p ${GITLAB_DATA_DIR}/ssh
  chown -R root:root ${GITLAB_DATA_DIR}/ssh

  # create the repositories directory and make sure it has the right permissions
  mkdir -p ${GITLAB_REPOS_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_REPOS_DIR}
  chmod ug+rwX,o-rwx ${GITLAB_REPOS_DIR}
  exec_as_git chmod g+s ${GITLAB_REPOS_DIR}

  # create build traces directory
  mkdir -p ${GITLAB_BUILDS_DIR}
  chmod u+rwX ${GITLAB_BUILDS_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_BUILDS_DIR}

  # gitlab:backup:create does not respect the builds_path configuration, so we
  # symlink ${GITLAB_INSTALL_DIR}/builds -> ${GITLAB_BUILDS_DIR}
  rm -rf ${GITLAB_INSTALL_DIR}/builds
  ln -sf ${GITLAB_BUILDS_DIR} ${GITLAB_INSTALL_DIR}/builds

  # create downloads directory
  mkdir -p ${GITLAB_DOWNLOADS_DIR}
  chmod u+rwX ${GITLAB_DOWNLOADS_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_DOWNLOADS_DIR}

  # create shared directory
  mkdir -p ${GITLAB_SHARED_DIR}
  chmod u+rwX ${GITLAB_SHARED_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_SHARED_DIR}

  mkdir -p ${GITLAB_ARTIFACTS_DIR}
  chmod u+rwX ${GITLAB_ARTIFACTS_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_ARTIFACTS_DIR}

  # symlink ${GITLAB_INSTALL_DIR}/shared -> ${GITLAB_DATA_DIR}/shared
  rm -rf ${GITLAB_INSTALL_DIR}/shared
  ln -sf ${GITLAB_SHARED_DIR} ${GITLAB_INSTALL_DIR}/shared

  # create lfs-objects directory
  mkdir -p ${GITLAB_LFS_OBJECTS_DIR}
  chmod u+rwX ${GITLAB_LFS_OBJECTS_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_LFS_OBJECTS_DIR}

  # create the backups directory
  mkdir -p ${GITLAB_BACKUP_DIR}
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_BACKUP_DIR}

  # create the uploads directory
  mkdir -p ${GITLAB_DATA_DIR}/uploads
  chmod 0750 ${GITLAB_DATA_DIR}/uploads
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_DATA_DIR}/uploads

  # create the .ssh directory
  mkdir -p ${GITLAB_DATA_DIR}/.ssh
  touch ${GITLAB_DATA_DIR}/.ssh/authorized_keys
  chmod 700 ${GITLAB_DATA_DIR}/.ssh
  chmod 600 ${GITLAB_DATA_DIR}/.ssh/authorized_keys
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_DATA_DIR}/.ssh

  # if relative_url is used the assets are compiled at runtime and placed in the
  # data volume for persistence. We set up symbolic links here to achieve this.
  if [[ -n ${GITLAB_RELATIVE_URL_ROOT} ]]; then
    # symlink ${GITLAB_INSTALL_DIR}/tmp/cache -> ${GITLAB_DATA_DIR}/tmp/cache
    rm -rf ${GITLAB_INSTALL_DIR}/tmp/cache
    exec_as_git ln -s ${GITLAB_DATA_DIR}/tmp/cache ${GITLAB_INSTALL_DIR}/tmp/cache

    # symlink ${GITLAB_INSTALL_DIR}/public/assets -> ${GITLAB_DATA_DIR}/tmp/public/assets
    rm -rf ${GITLAB_INSTALL_DIR}/public/assets
    exec_as_git ln -s ${GITLAB_DATA_DIR}/tmp/public/assets ${GITLAB_INSTALL_DIR}/public/assets
  fi
}

sanitize_datadir() {
  echo "Sanitizing datadir. Please be patient..."
  chmod -R ug+rwX,o-rwx ${GITLAB_REPOS_DIR}/
  chmod -R ug-s ${GITLAB_REPOS_DIR}/
  find ${GITLAB_REPOS_DIR}/ -type d -print0 | xargs -0 chmod g+s
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_REPOS_DIR}

  chmod -R u+rwX ${GITLAB_BUILDS_DIR}
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_BUILDS_DIR}

  chmod -R u+rwX ${GITLAB_DOWNLOADS_DIR}
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_DOWNLOADS_DIR}

  chmod -R u+rwX ${GITLAB_SHARED_DIR}
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_SHARED_DIR}

  chmod -R u+rwX ${GITLAB_ARTIFACTS_DIR}
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_ARTIFACTS_DIR}

  chmod -R u+rwX ${GITLAB_LFS_OBJECTS_DIR}
  chown -R ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_LFS_OBJECTS_DIR}

  find ${GITLAB_DATA_DIR}/uploads -type f -exec chmod 0644 {} \;
  find ${GITLAB_DATA_DIR}/uploads -type d -not -path ${GITLAB_DATA_DIR}/uploads -exec chmod 0755 {} \;
  chmod 0750 ${GITLAB_DATA_DIR}/uploads/
  chown ${GITLAB_USER}:${GITLAB_USER} ${GITLAB_DATA_DIR}/uploads/

  echo "Creating gitlab-shell hooks..."
  exec_as_git ${GITLAB_SHELL_INSTALL_DIR}/bin/create-hooks
}

generate_ssh_key() {
  echo -n "${1^^} "
  ssh-keygen -qt ${1} -N '' -f ${2}
}

generate_ssh_host_keys() {
  sed -i "s|HostKey /etc/ssh/|HostKey ${GITLAB_DATA_DIR}/ssh/|g" /etc/ssh/sshd_config
  if [[ ! -e ${GITLAB_DATA_DIR}/ssh/ssh_host_rsa_key ]]; then
    echo -n "Generating OpenSSH host keys... "
    generate_ssh_key rsa1     ${GITLAB_DATA_DIR}/ssh/ssh_host_key
    generate_ssh_key rsa      ${GITLAB_DATA_DIR}/ssh/ssh_host_rsa_key
    generate_ssh_key dsa      ${GITLAB_DATA_DIR}/ssh/ssh_host_dsa_key
    generate_ssh_key ecdsa    ${GITLAB_DATA_DIR}/ssh/ssh_host_ecdsa_key
    generate_ssh_key ed25519  ${GITLAB_DATA_DIR}/ssh/ssh_host_ed25519_key
    echo
  fi

  # ensure existing host keys have the right permissions
  chmod 0600 ${GITLAB_DATA_DIR}/ssh/*_key
  chmod 0644 ${GITLAB_DATA_DIR}/ssh/*.pub
}

initialize_system() {
  map_uidgid
  initialize_logdir
  initialize_datadir
  update_ca_certificates
  generate_ssh_host_keys
  install_configuration_templates
  rm -rf /var/run/supervisor.sock
}

install_configuration_templates() {
  echo "Installing configuration templates..."
  install_template ${GITLAB_USER} gitlabhq/gitlab.yml ${GITLAB_CONFIG}
  install_template ${GITLAB_USER} gitlabhq/database.yml ${GITLAB_DATABASE_CONFIG}
  install_template ${GITLAB_USER} gitlabhq/unicorn.rb ${GITLAB_UNICORN_CONFIG}
  install_template ${GITLAB_USER} gitlabhq/resque.yml ${GITLAB_RESQUE_CONFIG}
  install_template ${GITLAB_USER} gitlabhq/secrets.yml ${GITLAB_SECRETS_CONFIG}
  install_template ${GITLAB_USER} gitlab-shell/config.yml ${GITLAB_SHELL_CONFIG}

  if [[ ${SMTP_ENABLED} == true  ]]; then
    install_template ${GITLAB_USER} gitlabhq/smtp_settings.rb ${GITLAB_SMTP_CONFIG}
  fi

  # custom user specified robots.txt
  if [[ -f ${GITLAB_ROBOTS_PATH} ]]; then
    exec_as_git cp ${GITLAB_ROBOTS_PATH} ${GITLAB_ROBOTS_CONFIG}
  fi

  ## ${GITLAB_NGINX_CONFIG}
  if [[ ${GITLAB_HTTPS} == true ]]; then
    if [[ -f ${SSL_CERTIFICATE_PATH} && -f ${SSL_KEY_PATH} && -f ${SSL_DHPARAM_PATH} ]]; then
      install_template root nginx/gitlab-ssl ${GITLAB_NGINX_CONFIG}
    else
      echo "SSL keys and certificates were not found."
      echo "Assuming that the container is running behind a HTTPS enabled load balancer."
      install_template root nginx/gitlab ${GITLAB_NGINX_CONFIG}
    fi
  else
    install_template root nginx/gitlab ${GITLAB_NGINX_CONFIG}
  fi

  if [[ -n $GITLAB_CI_HOST ]]; then
    install_template root nginx/gitlab_ci ${GITLAB_CI_NGINX_CONFIG}
  fi
}

configure_gitlab() {
  echo "Configuring gitlab..."
  exec_as_git sed -i "s|{{GITLAB_INSTALL_DIR}}|${GITLAB_INSTALL_DIR}|g" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_SHELL_INSTALL_DIR}}|${GITLAB_SHELL_INSTALL_DIR}|g" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_DATA_DIR}}|${GITLAB_DATA_DIR}|g" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_REPOS_DIR}}|${GITLAB_REPOS_DIR}|g" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_DOWNLOADS_DIR}}|${GITLAB_DOWNLOADS_DIR}|g" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_SHARED_DIR}}|${GITLAB_SHARED_DIR}|g" ${GITLAB_CONFIG}

  exec_as_git sed -i "s|{{GITLAB_HOST}}|${GITLAB_HOST}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_PORT}}|${GITLAB_PORT}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_RELATIVE_URL_ROOT}}|${GITLAB_RELATIVE_URL_ROOT}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_HTTPS}}|${GITLAB_HTTPS}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_MAX_SIZE}}|${GITLAB_MAX_SIZE}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_SSH_HOST}}|${GITLAB_SSH_HOST}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_SSH_PORT}}|${GITLAB_SSH_PORT}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_USERNAME_CHANGE}}|${GITLAB_USERNAME_CHANGE}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_CREATE_GROUP}}|${GITLAB_CREATE_GROUP}|" ${GITLAB_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_TIMEOUT}}|${GITLAB_TIMEOUT}|" ${GITLAB_CONFIG}

  gitlab_configure_database
  gitlab_configure_redis
  gitlab_configure_secrets
  gitlab_configure_sidekiq
  gitlab_configure_unicorn
  gitlab_configure_timezone
  gitlab_configure_rack_attack
  gitlab_configure_ci
  gitlab_configure_artifacts
  gitlab_configure_lfs
  gitlab_configure_project_features
  gitlab_configure_mail_delivery
  gitlab_configure_mailroom
  gitlab_configure_oauth
  gitlab_configure_ldap
  gitlab_configure_gravatar
  gitlab_configure_analytics
  gitlab_configure_backups
}

configure_gitlab_shell() {
  echo "Configuring gitlab-shell..."
  exec_as_git sed -i "s|{{GITLAB_RELATIVE_URL_ROOT}}|${GITLAB_RELATIVE_URL_ROOT}|" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_HOME}}|${GITLAB_HOME}|g" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_LOG_DIR}}|${GITLAB_LOG_DIR}|g" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_DATA_DIR}}|${GITLAB_DATA_DIR}|g" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_BACKUP_DIR}}|${GITLAB_BACKUP_DIR}|g" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_REPOS_DIR}}|${GITLAB_REPOS_DIR}|g" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{GITLAB_SHELL_INSTALL_DIR}}|${GITLAB_SHELL_INSTALL_DIR}|g" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{SSL_SELF_SIGNED}}|${SSL_SELF_SIGNED}|" ${GITLAB_SHELL_CONFIG}

  exec_as_git sed -i "s|{{REDIS_HOST}}|${REDIS_HOST}|" ${GITLAB_SHELL_CONFIG}
  exec_as_git sed -i "s|{{REDIS_PORT}}|${REDIS_PORT}|" ${GITLAB_SHELL_CONFIG}
}

configure_nginx() {
  echo "Configuring nginx..."
  sed -i "s|worker_processes .*|worker_processes ${NGINX_WORKERS};|" /etc/nginx/nginx.conf
  nginx_configure_gitlab
  nginx_configure_gitlab_ci
}

migrate_database() {
  # run the `gitlab:setup` rake task if required
  case ${DB_ADAPTER} in
    mysql2)
      QUERY="SELECT count(*) FROM information_schema.tables WHERE table_schema = '${DB_NAME}';"
      COUNT=$(mysql -h ${DB_HOST} -P ${DB_PORT} -u ${DB_USER} ${DB_PASS:+-p$DB_PASS} -ss -e "${QUERY}")
      ;;
    postgresql)
      QUERY="SELECT count(*) FROM information_schema.tables WHERE table_schema = 'public';"
      COUNT=$(PGPASSWORD="${DB_PASS}" psql -h ${DB_HOST} -p ${DB_PORT} -U ${DB_USER} -d ${DB_NAME} -Atw -c "${QUERY}")
      ;;
  esac
  if [[ -z ${COUNT} || ${COUNT} -eq 0 ]]; then
    echo "Setting up GitLab for firstrun. Please be patient, this could take a while..."
    exec_as_git force=yes bundle exec rake gitlab:setup ${GITLAB_ROOT_PASSWORD:+GITLAB_ROOT_PASSWORD=$GITLAB_ROOT_PASSWORD} >/dev/null
  fi

  # migrate database and compile the assets if the gitlab version or relative_url has changed.
  CACHE_VERSION=
  [[ -f ${GITLAB_DATA_DIR}/tmp/VERSION ]] && CACHE_VERSION=$(cat ${GITLAB_DATA_DIR}/tmp/VERSION)
  [[ -f ${GITLAB_DATA_DIR}/tmp/GITLAB_RELATIVE_URL_ROOT ]] && CACHE_GITLAB_RELATIVE_URL_ROOT=$(cat ${GITLAB_DATA_DIR}/tmp/GITLAB_RELATIVE_URL_ROOT)
  if [[ ${GITLAB_VERSION} != ${CACHE_VERSION} || ${GITLAB_RELATIVE_URL_ROOT} != ${CACHE_GITLAB_RELATIVE_URL_ROOT} ]]; then
    echo "Migrating database..."
    exec_as_git bundle exec rake db:migrate >/dev/null

    # recreate the tmp directory
    rm -rf ${GITLAB_DATA_DIR}/tmp
    exec_as_git mkdir -p ${GITLAB_DATA_DIR}/tmp/

    # assets need to be recompiled when GITLAB_RELATIVE_URL_ROOT is used
    if [[ -n ${GITLAB_RELATIVE_URL_ROOT} ]]; then
      # create the tmp/cache and tmp/public/assets directory
      exec_as_git mkdir -p ${GITLAB_DATA_DIR}/tmp/cache/
      exec_as_git mkdir -p ${GITLAB_DATA_DIR}/tmp/public/assets/

      echo "GITLAB_RELATIVE_URL_ROOT in use, recompiling assets, this could take a while..."
      exec_as_git bundle exec rake assets:clean assets:precompile cache:clear >/dev/null 2>&1
    else
      # clear the cache
      exec_as_git bundle exec rake cache:clear >/dev/null 2>&1
    fi

    # update VERSION information
    exec_as_git echo "${GITLAB_VERSION}" > ${GITLAB_DATA_DIR}/tmp/VERSION
    exec_as_git echo "${GITLAB_RELATIVE_URL_ROOT}" > ${GITLAB_DATA_DIR}/tmp/GITLAB_RELATIVE_URL_ROOT
  fi
}

execute_raketask() {
  if [[ -z ${1} ]]; then
    echo "Please specify the rake task to execute. See https://github.com/gitlabhq/gitlabhq/tree/master/doc/raketasks"
    return 1
  fi

  if [[ ${1} == gitlab:backup:restore ]]; then
    interactive=true
    for arg in $@
    do
      if [[ $arg == BACKUP=* ]]; then
        interactive=false
        break
      fi
    done

    # user needs to select the backup to restore
    if [[ $interactive == true ]]; then
      nBackups=$(ls ${GITLAB_BACKUP_DIR}/*_gitlab_backup.tar | wc -l)
      if [[ $nBackups -eq 0 ]]; then
        echo "No backup present. Cannot continue restore process.".
        return 1
      fi

      echo
      for b in $(ls ${GITLAB_BACKUP_DIR} | grep gitlab_backup | sort -r)
      do
        echo "‣ $b"
      done
      echo

      read -p "Select a backup to restore: " file
      if [[ ! -f ${GITLAB_BACKUP_DIR}/${file} ]]; then
        echo "Specified backup does not exist. Aborting..."
        return 1
      fi
      BACKUP=$(echo $file | cut -d'_' -f1)
    fi
  elif [[ ${1} == gitlab:import:repos ]]; then
    # sanitize the datadir to avoid permission issues
    sanitize_datadir
  fi
  echo "Running raketask ${1}..."
  exec_as_git bundle exec rake $@ ${BACKUP:+BACKUP=$BACKUP}
}