mirror of
https://github.com/Rudd-O/ansible-qubes.git
synced 2025-03-01 14:22:33 +01:00
update Ansible connection plugin to be compatible with Ansible 2.0
This commit is contained in:
Manuel Amador (Rudd-O)
parent
4ec736212b
commit
3347647e79
@ -11,8 +11,16 @@ import subprocess
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import pipes
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from ansible import errors
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from ansible import utils
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from ansible.callbacks import vvv
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from ansible.utils.display import Display
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display = Display()
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from ansible.plugins.connection import ConnectionBase
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from ansible.inventory import Inventory
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from ansible.utils.vars import combine_vars
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from ansible.utils.unicode import to_bytes, to_unicode, to_str
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from ansible import constants as C
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BUFSIZE = 1024*1024
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class QubesRPCError(subprocess.CalledProcessError):
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@ -26,138 +34,148 @@ class QubesRPCError(subprocess.CalledProcessError):
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return r
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class Connection(object):
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class Connection(ConnectionBase):
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''' Qubes based connections '''
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def __init__(self, runner, host, port, *args, **kwargs):
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self.runner = runner
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host_vars = self.runner.inventory.get_host(host).get_variables()
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self.proxy = host_vars.get("management_proxy")
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self.has_pipelining = False
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transport = "qubes"
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has_pipelining = False
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become_from_methods = frozenset(["sudo"])
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_management_proxy = None
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self.chroot_cmd = distutils.spawn.find_executable('qrun')
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if not self.chroot_cmd:
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self.chroot_cmd = os.path.join(
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def set_host_overrides(self, host):
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host_vars = combine_vars(host.get_group_vars(), host.get_vars())
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_management_proxy = host_vars.get("_management_proxy", None)
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def __init__(self, play_context, new_stdin, *args, **kwargs):
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super(Connection, self).__init__(play_context, new_stdin, *args, **kwargs)
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self.chroot = self._play_context.remote_addr
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self.qrun = distutils.spawn.find_executable('qrun')
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if not self.qrun:
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self.qrun = os.path.join(
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os.path.dirname(__file__),
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os.path.pardir,
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os.path.pardir,
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"bin",
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"qrun",
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)
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if not os.path.exists(self.chroot_cmd):
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self.chroot_cmd = None
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if not self.chroot_cmd:
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if not os.path.exists(self.qrun):
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self.qrun = None
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if not self.qrun:
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raise errors.AnsibleError("qrun command not found in PATH")
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self.host = host
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if self.proxy:
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self.chroot = ".".join(self.host.split(".")[:-1])
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else:
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self.chroot = None
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# port is unused, since this is local
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self.port = port
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if self._management_proxy:
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assert 0, "still do not know how to deal with management proxy"
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def connect(self, port=None):
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def _connect(self):
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"""Connect to the host we've been initialized with"""
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# Check if PE is supported
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if self._play_context.become:
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self._become_method_supported()
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def connect(self):
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''' connect to the chroot; nothing to do here '''
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vvv("THIS IS A QUBES VM", host=self.chroot)
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super(Connection, self)._connect()
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display.vvv("THIS IS A QUBES VM", host=self.chroot)
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return self
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def produce_command(self, cmd, executable='/bin/sh'):
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proxy = ["--proxy=%s" % self.proxy] if self.proxy else []
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chroot = self.chroot if self.chroot else self.host
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def _produce_command(self, cmd):
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# FIXME
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# proxy = ["--proxy=%s" % self._management_proxy] if self._management_proxy else []
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chroot = self.chroot
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if isinstance(cmd, basestring):
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cmd = ["bash", "-c", cmd]
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if proxy:
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local_cmd = [self.chroot_cmd] + proxy + [chroot] + cmd
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else:
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local_cmd = [self.chroot_cmd] + [chroot] + cmd
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if executable:
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local_cmd = [executable, "-c", " ".join(pipes.quote(x) for x in local_cmd)]
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vvv("EXEC (with %s) %s" % (executable, local_cmd), host=self.chroot)
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else:
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vvv("EXEC (without executable) %s" % (local_cmd), host=self.chroot)
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assert 0, "cannot deal with basestrings like " + cmd
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#if proxy:
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# local_cmd = [self.qrun] + proxy + [chroot] + cmd
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#else:
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local_cmd = [self.qrun, self.chroot] + cmd
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local_cmd = map(to_bytes, local_cmd)
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return local_cmd
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def exec_command(self, cmd, tmp_path, become_user=None, sudoable=False, executable='/bin/sh', in_data=None):
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def _buffered_exec_command(self, cmd, stdin=subprocess.PIPE):
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''' run a command on the chroot. This is only needed for implementing
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put_file() get_file() so that we don't have to read the whole file
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into memory.
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compared to exec_command() it looses some niceties like being able to
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return the process's exit code immediately.
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'''
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local_cmd = self._produce_command(["/bin/sh", "-c", cmd])
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display.vvv("EXEC %s" % (local_cmd), host=self.chroot)
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return subprocess.Popen(local_cmd, shell=False, stdin=stdin,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE)
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def exec_command(self, cmd, in_data=None, sudoable=False):
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''' run a command on the chroot '''
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if become_user is not None and sudoable:
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if isinstance(cmd, basestring):
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cmd = "sudo -H -u %s bash -c %s" % (pipes.quote(become_user), pipes.quote(cmd))
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else:
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assert 0, "is not basestring: %r" % cmd
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local_cmd = self.produce_command(cmd, executable)
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p = subprocess.Popen(local_cmd, shell=False,
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cwd=self.runner.basedir,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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if in_data is None:
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stdout, stderr = p.communicate()
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else:
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stdout, stderr = p.communicate(in_data)
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return (p.returncode, '', stdout, stderr)
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super(Connection, self).exec_command(cmd, in_data=in_data, sudoable=sudoable)
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p = self._buffered_exec_command(cmd)
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stdout, stderr = p.communicate(in_data)
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return (p.returncode, stdout, stderr)
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def put_file(self, in_path, out_path):
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''' transfer a file from local to VM '''
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super(Connection, self).put_file(in_path, out_path)
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display.vvv("PUT %s TO %s" % (in_path, out_path), host=self.chroot)
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if not out_path.startswith(os.path.sep):
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out_path = os.path.join(os.path.sep, out_path)
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normpath = os.path.normpath(out_path)
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out_path = os.path.join("/", normpath[1:])
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vvv("PUT %s TO %s" % (in_path, out_path), host=self.chroot)
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if not os.path.exists(in_path):
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raise errors.AnsibleFileNotFound("file or module does not exist: %s" % in_path)
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cmd = self.produce_command("cat > %s" % pipes.quote(out_path))
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out_path = pipes.quote(self._prefix_login_path(out_path))
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try:
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p = subprocess.Popen(
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cmd,
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stdin=subprocess.PIPE,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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)
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out, _ = p.communicate(file(in_path).read())
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retval = p.wait()
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if retval != 0:
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raise QubesRPCError(retval, cmd, out)
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except subprocess.CalledProcessError:
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traceback.print_exc()
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raise errors.AnsibleError("failed to transfer file to %s" % out_path)
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with open(in_path, 'rb') as in_file:
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try:
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p = self._buffered_exec_command('dd of=%s bs=%s' % (out_path, BUFSIZE), stdin=in_file)
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except OSError:
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raise AnsibleError("chroot connection requires dd command in the chroot")
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try:
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stdout, stderr = p.communicate()
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except:
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traceback.print_exc()
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raise AnsibleError("failed to transfer file %s to %s" % (in_path, out_path))
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if p.returncode != 0:
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raise AnsibleError("failed to transfer file %s to %s:\n%s\n%s" % (in_path, out_path, stdout, stderr))
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except IOError:
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raise AnsibleError("file or module does not exist at: %s" % in_path)
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def _prefix_login_path(self, remote_path):
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''' Make sure that we put files into a standard path
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If a path is relative, then we need to choose where to put it.
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ssh chooses $HOME but we aren't guaranteed that a home dir will
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exist in any given chroot. So for now we're choosing "/" instead.
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This also happens to be the former default.
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Can revisit using $HOME instead if it's a problem
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'''
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if not remote_path.startswith(os.path.sep):
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remote_path = os.path.join(os.path.sep, remote_path)
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return os.path.normpath(remote_path)
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def fetch_file(self, in_path, out_path):
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''' fetch a file from VM to local '''
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super(Connection, self).fetch_file(in_path, out_path)
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display.vvv("FETCH %s TO %s" % (in_path, out_path), host=self.chroot)
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if not in_path.startswith(os.path.sep):
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in_path = os.path.join(os.path.sep, in_path)
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normpath = os.path.normpath(in_path)
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in_path = os.path.join("/", normpath[1:])
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in_path = pipes.quote(self._prefix_login_path(in_path))
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vvv("FETCH %s TO %s" % (in_path, out_path), host=self.chroot)
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f = pipes.quote(in_path)
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cmd = self.produce_command("test -f %s && cat %s || exit 7" % (f,f))
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try:
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p = subprocess.Popen(
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cmd,
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stdout = subprocess.PIPE
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)
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out, err = p.communicate("")
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retval = p.wait()
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if retval == 7:
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raise errors.AnsibleFileNotFound("file or module does not exist: %s" % in_path)
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elif retval != 0:
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raise subprocess.CalledProcessError(retval, cmd)
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file(out_path, "wb").write(out)
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except subprocess.CalledProcessError:
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traceback.print_exc()
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raise errors.AnsibleError("failed to transfer file to %s" % out_path)
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except IOError:
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traceback.print_exc()
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raise errors.AnsibleError("failed to transfer file to %s" % out_path)
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p = self._buffered_exec_command('dd if=%s bs=%s' % (in_path, BUFSIZE))
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except OSError:
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raise AnsibleError("Qubes connection requires dd command in the chroot")
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with open(out_path, 'wb+') as out_file:
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try:
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chunk = p.stdout.read(BUFSIZE)
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while chunk:
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out_file.write(chunk)
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chunk = p.stdout.read(BUFSIZE)
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except:
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traceback.print_exc()
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raise AnsibleError("failed to transfer file %s to %s" % (in_path, out_path))
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stdout, stderr = p.communicate()
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if p.returncode != 0:
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raise AnsibleError("failed to transfer file %s to %s:\n%s\n%s" % (in_path, out_path, stdout, stderr))
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def close(self):
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''' terminate the connection; nothing to do here '''
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