diff options
| -rwxr-xr-x | src/migration-scripts/dns-forwarding/1-to-2 | 83 |
1 files changed, 40 insertions, 43 deletions
diff --git a/src/migration-scripts/dns-forwarding/1-to-2 b/src/migration-scripts/dns-forwarding/1-to-2 index ba10c26f2..a8c930be7 100755 --- a/src/migration-scripts/dns-forwarding/1-to-2 +++ b/src/migration-scripts/dns-forwarding/1-to-2 @@ -16,7 +16,7 @@ # # This migration script will remove the deprecated 'listen-on' statement -# from the dns forwarding service and will add the corresponding +# from the dns forwarding service and will add the corresponding # listen-address nodes instead. This is required as PowerDNS can only listen # on interface addresses and not on interface names. @@ -37,53 +37,50 @@ with open(file_name, 'r') as f: config = ConfigTree(config_file) base = ['service', 'dns', 'forwarding'] -if not config.exists(base): +if not config.exists(base + ['listen-on']): # Nothing to do exit(0) -if config.exists(base + ['listen-on']): - listen_intf = config.return_values(base + ['listen-on']) - # Delete node with abandoned command - config.delete(base + ['listen-on']) +listen_intf = config.return_values(base + ['listen-on']) +# Delete node with abandoned command +config.delete(base + ['listen-on']) - # retrieve interface addresses for every configured listen-on interface - listen_addr = [] - for intf in listen_intf: - # we need to evaluate the interface section before manipulating the 'intf' variable - section = Interface.section(intf) - if not section: - raise ValueError(f'Invalid interface name {intf}') +# retrieve interface addresses for every configured listen-on interface +listen_addr = [] +for intf in listen_intf: + # we need to evaluate the interface section before manipulating the 'intf' variable + section = Interface.section(intf) + if not section: + raise ValueError(f'Invalid interface name {intf}') - # we need to treat vif and vif-s interfaces differently, - # both "real interfaces" use dots for vlan identifiers - those - # need to be exchanged with vif and vif-s identifiers - if intf.count('.') == 1: - # this is a regular VLAN interface - intf = intf.split('.')[0] + ' vif ' + intf.split('.')[1] - elif intf.count('.') == 2: - # this is a QinQ VLAN interface - intf = intf.split('.')[0] + ' vif-s ' + intf.split('.')[1] + ' vif-c ' + intf.split('.')[2] - - # retrieve corresponding interface addresses in CIDR format - # those need to be converted in pure IP addresses without network information - path = ['interfaces', section, intf, 'address'] - try: - for addr in config.return_values(path): - listen_addr.append( ip_interface(addr).ip ) - except: - # Some interface types do not use "address" option (e.g. OpenVPN) - # and may not even have a fixed address - print("Could not retrieve the address of the interface {} from the config".format(intf)) - print("You will need to update your DNS forwarding configuration manually") - - for addr in listen_addr: - config.set(base + ['listen-address'], value=addr, replace=False) + # we need to treat vif and vif-s interfaces differently, + # both "real interfaces" use dots for vlan identifiers - those + # need to be exchanged with vif and vif-s identifiers + if intf.count('.') == 1: + # this is a regular VLAN interface + intf = intf.split('.')[0] + ' vif ' + intf.split('.')[1] + elif intf.count('.') == 2: + # this is a QinQ VLAN interface + intf = intf.split('.')[0] + ' vif-s ' + intf.split('.')[1] + ' vif-c ' + intf.split('.')[2] + # retrieve corresponding interface addresses in CIDR format + # those need to be converted in pure IP addresses without network information + path = ['interfaces', section, intf, 'address'] try: - with open(file_name, 'w') as f: - f.write(config.to_string()) - except OSError as e: - print("Failed to save the modified config: {}".format(e)) - exit(1) + for addr in config.return_values(path): + listen_addr.append( ip_interface(addr).ip ) + except: + # Some interface types do not use "address" option (e.g. OpenVPN) + # and may not even have a fixed address + print("Could not retrieve the address of the interface {} from the config".format(intf)) + print("You will need to update your DNS forwarding configuration manually") -exit(0) +for addr in listen_addr: + config.set(base + ['listen-address'], value=addr, replace=False) + +try: + with open(file_name, 'w') as f: + f.write(config.to_string()) +except OSError as e: + print(f'Failed to save the modified config: {e}') + exit(1) |