Multiple host ips #36
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Ops, just wanted to update my own repo. But check if you like it |
aszlig
requested changes
Jun 20, 2020
| @@ -1,3 +1,4 @@ | |||
| *.pyc | |||
| /build/ | |||
| /result | |||
| .idea | |||
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I'd like to keep out all editor-specific ignores, so can you please drop this hunk?
| @@ -45,16 +48,60 @@ def set(self, ip, new_destination): | |||
| "Invalid IP address '%s'. Failover IP addresses are %s" | |||
| % (ip, failovers.keys())) | |||
| failover = failovers.get(ip) | |||
| if new_destination == failover.active_server_ip: | |||
| dest_list = new_destination.split(' ') | |||
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Please don't stringly-type things, I'd rather prefer the function signature to be something like:
def set(self, ip: str, *destinations: str) -> None:
...| @@ -233,35 +233,36 @@ class Failover(SubCommand): | |||
| make_option('-s', '--set', dest='setfailover', action='store_true', | |||
| default=False, | |||
| help="Assign failover IP address to server"), | |||
| make_option('-m', '--monitor', dest='monitorfailover', | |||
| action='store_true', default=False, | |||
| help="Assign failover IP address to server"), | |||
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| def monitor(self): | ||
| """Check if container with failover IP is running on host | ||
| and if IP is not mapped to host change settings | ||
| """ | ||
| msgs = [] | ||
| failovers = self.list() | ||
| if len(failovers) > 0: | ||
| ips = self._get_active_ips() | ||
| host_ip = self._get_host_ip() | ||
| for failover_ip, failover in failovers.items(): | ||
| if failover_ip in ips and failover.active_server_ip != host_ip: | ||
| new_failover = self.set(failover_ip, host_ip) | ||
| if new_failover: | ||
| msgs.append("Failover IP successfully assigned to new" | ||
| " destination") | ||
| msgs.append(str(failover)) | ||
| return msgs | ||
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| def _get_active_ips(self): | ||
| ips = [] | ||
| try: | ||
| out = subprocess.check_output(["lxc-ls", "--active", "-fF", "IPV4"]) | ||
| except subprocess.CalledProcessError as e: | ||
| raise RobotError(str(e)) | ||
| except Exception as e: | ||
| raise RobotError(str(e)) | ||
| else: | ||
| [ips.extend([ip.strip() for ip in line.strip().split(',')]) | ||
| for line in out.split('\n') | ||
| if re.search(r'\d+\.\d+\.\d+\.\d', line)] | ||
| return ips | ||
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| def _get_host_ip(self): | ||
| try: | ||
| host_ip = subprocess.check_output(["hostname", "--ip-address"]) | ||
| except subprocess.CalledProcessError as e: | ||
| raise RobotError(str(e)) | ||
| except Exception as e: | ||
| raise RobotError(str(e)) | ||
| else: | ||
| return host_ip.strip() | ||
|
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IIUC, these are lxc-specific methods which clearly have nothing to do with the library. If we really want people to extend the hetznerctl tool, we should instead introduce a plugin system, where people can introduce such changes without becoming a maintenance burden upstream.
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