45 lines
1.8 KiB
Python
45 lines
1.8 KiB
Python
import docker
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from Controller import Controller, ControllerType
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import utils
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class SwarmController(Controller) :
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def __init__(self, api_uri) :
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super().__init__(ControllerType.SWARM, api_uri=api_uri, lock=Lock())
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# TODO : honor env vars like DOCKER_HOST
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self.__client = docker.DockerClient(base_url='unix:///var/run/docker.sock')
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def __get_instances(self) :
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return self.__client.services.list(filters={"label" : "bunkerized-nginx.AUTOCONF"})
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def __get_services(self) :
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return self.__client.services.list(filters={"label" : "bunkerized-nginx.SERVER_NAME"})
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def get_env(self) :
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env = {}
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for instance in self.__get_instances() :
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for variable in instance.attrs["Spec"]["TaskTemplate"]["ContainerSpec"]["Env"] :
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env[variable.split("=")[0]] = variable.replace(variable.split("=")[0] + "=", "", 1)
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first_servers = []
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if "SERVER_NAME" in env :
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first_servers = env["SERVER_NAME"].split(" ")
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for service in self.__get_services() :
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first_server = service.attrs["Spec"]["Labels"]["bunkerized-nginx.SERVER_NAME"].split(" ")[0]
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first_servers.append(first_server)
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for variable, value in service.attrs["Spec"]["Labels"].items() :
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if variable.startswith("bunkerized-nginx.") :
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env[first_server + "_" + variable.replace("bunkerized-nginx.", "", 1)] = value
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env["SERVER_NAME"] = " ".join(first_servers)
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return self._fix_env(env)
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def process_events(self, current_env) :
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old_env = current_env
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for event in client.events(decode=True, filter={"type": "service", "label": ["bunkerized-nginx.AUTOCONF", "bunkerized-nginx.SERVER_NAME"]}) :
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new_env = self.get_env()
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if new_env != old_env :
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self.lock.acquire()
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if self.gen_conf(new_env) :
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old_env.copy(new_env)
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utils.log("[*] Successfully generated new configuration")
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self.lock.release()
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