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__rndc_key() { grep -s 'key "rndc-key" ' "$ETC_DIR/rndc.key" | grep -v 'KEY_RNDC' | sed 's|.*secret ||g;s|"||g;s|;.*||g' | grep '^' || return 1; }
__tsig_key() { tsig-keygen -a hmac-sha256 | grep 'secret' | sed 's|.*secret "||g;s|"||g;s|;||g' | grep '^' || echo 'wp/HApbthaVPjwqgp6ziLlmnkyLSNbRTehkdARBDcpI='; }
EXEC_CMD_BIN="named" # command to execute
EXEC_CMD_ARGS="-f -c $ETC_DIR/named.conf" # command arguments
VAR_DIR="/var/bind"
KEY_RNDC="${KEY_RNDC:-$(__tsig_key)}"
KEY_DHCP="${KEY_DHCP:-$(__tsig_key)}"
KEY_BACKUP="${KEY_BACKUP:-$(__tsig_key)}"
KEY_CERTBOT="${KEY_CERTBOT:-$(__tsig_key)}"
local zone_files=""
local serial="$(date +'%Y%m%d%S')"
local HOSTNAME="${SERVER_NAME:-$HOSTNAME}"
local ip_address="${CONTAINER_IP4_ADDRESS:-127.0.0.1}"
[ -f "$CONF_DIR/set_rndc.key" ] && GET_RNDC_KEY="$(<"$CONF_DIR/set_rndc.key")"
__replace "REPLACE_KEY_DHCP" "$KEY_DHCP" "$ETC_DIR/named.conf" #&>/dev/null
__replace "REPLACE_KEY_BACKUP" "$KEY_BACKUP" "$ETC_DIR/named.conf" #&>/dev/null
__replace "REPLACE_KEY_CERTBOT" "$KEY_CERTBOT" "$ETC_DIR/named.conf" #&>/dev/null
__replace "REPLACE_KEY_RNDC" "${GET_RNDC_KEY:-$KEY_RNDC}" "$ETC_DIR/rndc.key" #&>/dev/null
__replace "REPLACE_KEY_RNDC" "${GET_RNDC_KEY:-$KEY_RNDC}" "$ETC_DIR/named.conf" #&>/dev/null
[ -f "$ETC_DIR/custom.conf" ] && mv -f "$ETC_DIR/custom.conf" "$ETC_DIR/named.conf"
GET_RNDC_KEY="${GET_RNDC_KEY:-$(__rndc_key || echo '')}"
if [ -n "$GET_RNDC_KEY" ]; then
echo "$GET_RNDC_KEY" >"$CONF_DIR/set_rndc.key"
fi
zone_files="$(find "$DATA_DIR/zones/" -type f | wc -l)"
if [ $zone_files = 0 ] && [ ! -f "$DATA_DIR/zones/$HOSTNAME.zone" ]; then
cat <<EOF | tee "$DATA_DIR/zones/$HOSTNAME.zone" &>/dev/null
; config for $HOSTNAME
@ IN SOA $HOSTNAME. root.$HOSTNAME. ( $serial 10800 3600 1209600 38400)
IN NS $HOSTNAME.
$HOSTNAME. IN A $ip_address
EOF
fi
#
for dns_file in "$DATA_DIR/zones"/*; do
file_name="$(basename "$dns_file")"
domain_name="$(grep -Rs '\$ORIGIN' "$dns_file" | awk '{print $NF}' | sed 's|.$||g')"
if [ -f "$dns_file" ]; then
cp -Rf "$dns_file" "$VAR_DIR/zones/$file_name"
if [ -n "$domain_name" ] && ! grep -qs "$domain_name" "$ETC_DIR/named.conf"; then
cat <<EOF >>"$ETC_DIR/named.conf"
# ********** begin $domain_name **********
zone "$domain_name" {
type master;
file "$VAR_DIR/zones/$file_name";
notify yes;
allow-update {key "certbot."; key "dhcp-key"; trusted;};
allow-transfer { any; key "backup-key"; };
};
# ********** end $domain_name **********
EOF
grep -qs "$domain_name" "$ETC_DIR/named.conf" && echo "Added $domain_name to $ETC_DIR/named.conf"
fi
fi
done
if named-checkconf -z "$ETC_DIR/named.conf" &>/dev/null; then
echo "named-checkconf has succeeded"
else
echo "named-checkconf has failed:"
named-checkconf -z "$ETC_DIR/named.conf"
fi