diff --git a/cloud/docker/docker.py b/cloud/docker/docker.py index 7184b22ccfa..34445f732cb 100644 --- a/cloud/docker/docker.py +++ b/cloud/docker/docker.py @@ -223,6 +223,15 @@ options: description: - Pass a dict of environment variables to the container. default: null + env_file: + version_added: "2.1" + description: + - Pass in a path to a file with environment variable (FOO=BAR). + If a key value is present in both explicitly presented (i.e. as 'env') + and in the environment file, the explicit value will override. + Requires docker-py >= 1.4.0. + default: null + required: false dns: description: - List of custom DNS servers for the container. @@ -661,7 +670,8 @@ class DockerManager(object): 'labels': ((1, 2, 0), '1.18'), 'stop_timeout': ((0, 5, 0), '1.0'), # Clientside only - 'insecure_registry': ((0, 5, 0), '0.0') + 'insecure_registry': ((0, 5, 0), '0.0'), + 'env_file': ((1, 4, 0), '0.0') } def __init__(self, module): @@ -712,7 +722,9 @@ class DockerManager(object): if self.module.params.get('links'): self.links = self.get_links(self.module.params.get('links')) - self.env = self.module.params.get('env', None) + env = self.module.params.get('env', None) + env_file = self.module.params.get('env_file', None) + self.environment = self.get_environment(env, env_file) # Connect to the docker server using any configured host and TLS settings. @@ -838,6 +850,25 @@ class DockerManager(object): '.'.join(map(str, self.docker_py_versioninfo)), api_version)) + def get_environment(self, env, env_file): + """ + If environment files are combined with explicit environment variables, the explicit environment variables will override the key from the env file. + """ + final_env = {} + + if env_file: + self.ensure_capability('env_file') + parsed_env_file = docker.utils.parse_env_file(env_file) + + for name, value in parsed_env_file.iteritems(): + final_env[name] = str(value) + + if env: + for name, value in env.iteritems(): + final_env[name] = str(value) + + return final_env + def get_links(self, links): """ Parse the links passed, if a link is specified without an alias then just create the alias of the same name as the link @@ -1203,8 +1234,8 @@ class DockerManager(object): name, value = image_env.split('=', 1) expected_env[name] = value - if self.env: - for name, value in self.env.iteritems(): + if self.environment: + for name, value in self.environment.iteritems(): expected_env[name] = str(value) actual_env = {} @@ -1545,7 +1576,7 @@ class DockerManager(object): 'command': self.module.params.get('command'), 'ports': self.exposed_ports, 'volumes': self.volumes, - 'environment': self.env, + 'environment': self.environment, 'labels': self.module.params.get('labels'), 'hostname': self.module.params.get('hostname'), 'domainname': self.module.params.get('domainname'), @@ -1788,6 +1819,7 @@ def main(): hostname = dict(default=None), domainname = dict(default=None), env = dict(type='dict'), + env_file = dict(default=None), dns = dict(), detach = dict(default=True, type='bool'), state = dict(default='started', choices=['present', 'started', 'reloaded', 'restarted', 'stopped', 'killed', 'absent', 'running']),