diff --git a/blogs.yaml b/blogs.yaml index 8e294e1..ec1ff63 100644 --- a/blogs.yaml +++ b/blogs.yaml @@ -1,8 +1,11 @@ --- - hosts: biff roles: - - role: lxc_guest - vm_name: blogs + - role: lxc_guest + vm_name: blogs + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: blogs - hosts: blogs roles: - role: wordpress diff --git a/firewall.yaml b/firewall.yaml index 765228d..c7d82cb 100644 --- a/firewall.yaml +++ b/firewall.yaml @@ -1,4 +1,5 @@ --- - hosts: gandalf2 roles: - - role: openvpn + - role: openvpn + - role: ssh_server diff --git a/ldap.yaml b/ldap.yaml index a316ecc..349d745 100644 --- a/ldap.yaml +++ b/ldap.yaml @@ -1,8 +1,11 @@ --- - hosts: biff roles: - - role: lxc_guest - vm_name: ldap + - role: lxc_guest + vm_name: ldap + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: ldap - hosts: ldap roles: - role: ldap diff --git a/library/lxc_ssh.py b/library/lxc_ssh.py new file mode 100644 index 0000000..48401a0 --- /dev/null +++ b/library/lxc_ssh.py @@ -0,0 +1,594 @@ +# Copyright 2016 Pierre Chifflier +# +# SSH + lxc-attach connection module for Ansible 2.0 +# +# Adapted from ansible/plugins/connection/ssh.py +# +# Ansible is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# Ansible is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with Ansible. If not, see . +# +import fcntl +import os +import pipes +import pty +import select +import shlex +import subprocess + +from ansible import constants as C +from ansible.compat.six import text_type, binary_type +from ansible.plugins.connection import ConnectionBase +from ansible.utils.path import unfrackpath, makedirs_safe +from ansible.module_utils._text import to_bytes, to_text + +try: + from __main__ import display +except ImportError: + from ansible.utils.display import Display + display = Display() + + +class Connection(ConnectionBase): + transport = 'lxc_ssh' + has_pipelining = True + + + def __init__(self, play_context, new_stdin, *args, **kwargs): + #print args + #print kwargs + super(Connection, self).__init__(play_context, new_stdin, *args, **kwargs) + self.host=self._play_context.remote_addr + self.container_name = play_context.docker_extra_args # XXX + + def _connect(self): + ''' connect to the lxc; nothing to do here ''' + display.vvv('XXX connect') + super(Connection, self)._connect() + #self.container_name = self.ssh._play_context.remote_addr + + # self._play_context.ssh_extra_args = "" + #self.container = None + + @staticmethod + def _persistence_controls(command): + ''' + Takes a command array and scans it for ControlPersist and ControlPath + settings and returns two booleans indicating whether either was found. + This could be smarter, e.g. returning false if ControlPersist is 'no', + but for now we do it simple way. + ''' + + controlpersist = False + controlpath = False + + for arg in command: + if 'controlpersist' in arg.lower(): + controlpersist = True + elif 'controlpath' in arg.lower(): + controlpath = True + + return controlpersist, controlpath + + + @staticmethod + def _split_args(argstring): + """ + Takes a string like '-o Foo=1 -o Bar="foo bar"' and returns a + list ['-o', 'Foo=1', '-o', 'Bar=foo bar'] that can be added to + the argument list. The list will not contain any empty elements. + """ + return [to_text(x.strip()) for x in shlex.split(to_bytes(argstring)) if x.strip()] + + + def _add_args(self, explanation, args): + """ + Adds the given args to self._command and displays a caller-supplied + explanation of why they were added. + """ + self._command += args + display.vvvvv('SSH: ' + explanation + ': (%s)' % ')('.join(args), host=self._play_context.remote_addr) + + + def _build_command(self, binary, *other_args): + self._command = [] + self._command += [binary] + self._command += ['-C'] + if self._play_context.verbosity > 3: + self._command += ['-vvv'] + elif binary == 'ssh': + # Older versions of ssh (e.g. in RHEL 6) don't accept sftp -q. + self._command += ['-q'] + # Next, we add [ssh_connection]ssh_args from ansible.cfg. +# if self._play_context.ssh_args: +# args = self._split_args(self._play_context.ssh_args) +# self._add_args("ansible.cfg set ssh_args", args) + # Now we add various arguments controlled by configuration file settings + # (e.g. host_key_checking) or inventory variables (ansible_ssh_port) or + # a combination thereof. + if not C.HOST_KEY_CHECKING: + self._add_args( + "ANSIBLE_HOST_KEY_CHECKING/host_key_checking disabled", + ("-o", "StrictHostKeyChecking=no") + ) + if self._play_context.port is not None: + self._add_args( + "ANSIBLE_REMOTE_PORT/remote_port/ansible_port set", + ("-o", "Port={0}".format(self._play_context.port)) + ) + key = self._play_context.private_key_file + if key: + self._add_args( + "ANSIBLE_PRIVATE_KEY_FILE/private_key_file/ansible_ssh_private_key_file set", + ("-o", "IdentityFile=\"{0}\"".format(os.path.expanduser(key))) + ) + if not self._play_context.password: + self._add_args( + "ansible_password/ansible_ssh_pass not set", ( + "-o", "KbdInteractiveAuthentication=no", + "-o", "PreferredAuthentications=gssapi-with-mic,gssapi-keyex,hostbased,publickey", + "-o", "PasswordAuthentication=no" + ) + ) + user = self._play_context.remote_user + if user: + self._add_args( + "ANSIBLE_REMOTE_USER/remote_user/ansible_user/user/-u set", + ("-o", "User={0}".format(to_bytes(self._play_context.remote_user))) + ) + self._add_args( + "ANSIBLE_TIMEOUT/timeout set", + ("-o", "ConnectTimeout={0}".format(self._play_context.timeout)) + ) + # Check if ControlPersist is enabled and add a ControlPath if one hasn't + # already been set. + controlpersist, controlpath = self._persistence_controls(self._command) + if controlpersist: + self._persistent = True + if not controlpath: + cpdir = unfrackpath('$HOME/.ansible/cp') + # The directory must exist and be writable. + makedirs_safe(cpdir, 0o700) + if not os.access(cpdir, os.W_OK): + raise AnsibleError("Cannot write to ControlPath %s" % cpdir) + args = ("-o", "ControlPath={0}".format( + to_bytes(C.ANSIBLE_SSH_CONTROL_PATH % dict(directory=cpdir))) + ) + self._add_args("found only ControlPersist; added ControlPath", args) + ## Finally, we add any caller-supplied extras. + if other_args: + self._command += other_args + return self._command + + + def _send_initial_data(self, fh, in_data): + ''' + Writes initial data to the stdin filehandle of the subprocess and closes + it. (The handle must be closed; otherwise, for example, "sftp -b -" will + just hang forever waiting for more commands.) + ''' + + display.debug('Sending initial data') + + try: + fh.write(in_data) + fh.close() + except (OSError, IOError): + raise AnsibleConnectionFailure('SSH Error: data could not be sent to the remote host. Make sure this host can be reached over ssh') + + display.debug('Sent initial data (%d bytes)' % len(in_data)) + + # Used by _run() to kill processes on failures + @staticmethod + def _terminate_process(p): + """ Terminate a process, ignoring errors """ + try: + p.terminate() + except (OSError, IOError): + pass + + # This is separate from _run() because we need to do the same thing for stdout + # and stderr. + def _examine_output(self, source, state, chunk, sudoable): + ''' + Takes a string, extracts complete lines from it, tests to see if they + are a prompt, error message, etc., and sets appropriate flags in self. + Prompt and success lines are removed. + + Returns the processed (i.e. possibly-edited) output and the unprocessed + remainder (to be processed with the next chunk) as strings. + ''' + + output = [] + for l in chunk.splitlines(True): + suppress_output = False + + #display.debug("Examining line (source=%s, state=%s): '%s'" % (source, state, l.rstrip('\r\n'))) + if self._play_context.prompt and self.check_password_prompt(l): + display.debug("become_prompt: (source=%s, state=%s): '%s'" % (source, state, l.rstrip('\r\n'))) + self._flags['become_prompt'] = True + suppress_output = True + elif self._play_context.success_key and self.check_become_success(l): + display.debug("become_success: (source=%s, state=%s): '%s'" % (source, state, l.rstrip('\r\n'))) + self._flags['become_success'] = True + suppress_output = True + elif sudoable and self.check_incorrect_password(l): + display.debug("become_error: (source=%s, state=%s): '%s'" % (source, state, l.rstrip('\r\n'))) + self._flags['become_error'] = True + elif sudoable and self.check_missing_password(l): + display.debug("become_nopasswd_error: (source=%s, state=%s): '%s'" % (source, state, l.rstrip('\r\n'))) + self._flags['become_nopasswd_error'] = True + + if not suppress_output: + output.append(l) + + # The chunk we read was most likely a series of complete lines, but just + # in case the last line was incomplete (and not a prompt, which we would + # have removed from the output), we retain it to be processed with the + # next chunk. + + remainder = '' + if output and not output[-1].endswith('\n'): + remainder = output[-1] + output = output[:-1] + + return ''.join(output), remainder + + def _run(self, cmd, in_data, sudoable=True): + ''' + Starts the command and communicates with it until it ends. + ''' + + display_cmd = map(to_text, map(pipes.quote, cmd)) + display.vvv(u'SSH: EXEC {0}'.format(u' '.join(display_cmd)), host=self.host) + + # Start the given command. If we don't need to pipeline data, we can try + # to use a pseudo-tty (ssh will have been invoked with -tt). If we are + # pipelining data, or can't create a pty, we fall back to using plain + # old pipes. + + p = None + + if isinstance(cmd, (text_type, binary_type)): + cmd = to_bytes(cmd) + else: + cmd = map(to_bytes, cmd) + + if not in_data: + try: + # Make sure stdin is a proper pty to avoid tcgetattr errors + master, slave = pty.openpty() + p = subprocess.Popen(cmd, stdin=slave, stdout=subprocess.PIPE, stderr=subprocess.PIPE) + stdin = os.fdopen(master, 'w', 0) + os.close(slave) + except (OSError, IOError): + p = None + + if not p: + p = subprocess.Popen(cmd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE) + stdin = p.stdin + + # If we are using SSH password authentication, write the password into + # the pipe we opened in _build_command. + + if self._play_context.password: + os.close(self.sshpass_pipe[0]) + os.write(self.sshpass_pipe[1], "{0}\n".format(to_bytes(self._play_context.password))) + os.close(self.sshpass_pipe[1]) + + ## SSH state machine + # + # Now we read and accumulate output from the running process until it + # exits. Depending on the circumstances, we may also need to write an + # escalation password and/or pipelined input to the process. + + states = [ + 'awaiting_prompt', 'awaiting_escalation', 'ready_to_send', 'awaiting_exit' + ] + + # Are we requesting privilege escalation? Right now, we may be invoked + # to execute sftp/scp with sudoable=True, but we can request escalation + # only when using ssh. Otherwise we can send initial data straightaway. + + state = states.index('ready_to_send') + if b'ssh' in cmd: + if self._play_context.prompt: + # We're requesting escalation with a password, so we have to + # wait for a password prompt. + state = states.index('awaiting_prompt') + display.debug('Initial state: %s: %s' % (states[state], self._play_context.prompt)) + elif self._play_context.become and self._play_context.success_key: + # We're requesting escalation without a password, so we have to + # detect success/failure before sending any initial data. + state = states.index('awaiting_escalation') + display.debug('Initial state: %s: %s' % (states[state], self._play_context.success_key)) + + # We store accumulated stdout and stderr output from the process here, + # but strip any privilege escalation prompt/confirmation lines first. + # Output is accumulated into tmp_*, complete lines are extracted into + # an array, then checked and removed or copied to stdout or stderr. We + # set any flags based on examining the output in self._flags. + + stdout = stderr = '' + tmp_stdout = tmp_stderr = '' + + self._flags = dict( + become_prompt=False, become_success=False, + become_error=False, become_nopasswd_error=False + ) + + # select timeout should be longer than the connect timeout, otherwise + # they will race each other when we can't connect, and the connect + # timeout usually fails + timeout = 2 + self._play_context.timeout + rpipes = [p.stdout, p.stderr] + for fd in rpipes: + fcntl.fcntl(fd, fcntl.F_SETFL, fcntl.fcntl(fd, fcntl.F_GETFL) | os.O_NONBLOCK) + + # If we can send initial data without waiting for anything, we do so + # before we call select. + + if states[state] == 'ready_to_send' and in_data: + self._send_initial_data(stdin, in_data) + state += 1 + + while True: + rfd, wfd, efd = select.select(rpipes, [], [], timeout) + + # We pay attention to timeouts only while negotiating a prompt. + + if not rfd: + if state <= states.index('awaiting_escalation'): + # If the process has already exited, then it's not really a + # timeout; we'll let the normal error handling deal with it. + if p.poll() is not None: + break + self._terminate_process(p) + raise AnsibleError('Timeout (%ds) waiting for privilege escalation prompt: %s' % (timeout, stdout)) + + # Read whatever output is available on stdout and stderr, and stop + # listening to the pipe if it's been closed. + + if p.stdout in rfd: + chunk = p.stdout.read() + if chunk == '': + rpipes.remove(p.stdout) + tmp_stdout += chunk + display.debug("stdout chunk (state=%s):\n>>>%s<<<\n" % (state, chunk)) + + if p.stderr in rfd: + chunk = p.stderr.read() + if chunk == '': + rpipes.remove(p.stderr) + tmp_stderr += chunk + display.debug("stderr chunk (state=%s):\n>>>%s<<<\n" % (state, chunk)) + + # We examine the output line-by-line until we have negotiated any + # privilege escalation prompt and subsequent success/error message. + # Afterwards, we can accumulate output without looking at it. + + if state < states.index('ready_to_send'): + if tmp_stdout: + output, unprocessed = self._examine_output('stdout', states[state], tmp_stdout, sudoable) + stdout += output + tmp_stdout = unprocessed + + if tmp_stderr: + output, unprocessed = self._examine_output('stderr', states[state], tmp_stderr, sudoable) + stderr += output + tmp_stderr = unprocessed + else: + stdout += tmp_stdout + stderr += tmp_stderr + tmp_stdout = tmp_stderr = '' + + # If we see a privilege escalation prompt, we send the password. + # (If we're expecting a prompt but the escalation succeeds, we + # didn't need the password and can carry on regardless.) + + if states[state] == 'awaiting_prompt': + if self._flags['become_prompt']: + display.debug('Sending become_pass in response to prompt') + stdin.write('{0}\n'.format(to_bytes(self._play_context.become_pass ))) + self._flags['become_prompt'] = False + state += 1 + elif self._flags['become_success']: + state += 1 + + # We've requested escalation (with or without a password), now we + # wait for an error message or a successful escalation. + + if states[state] == 'awaiting_escalation': + if self._flags['become_success']: + display.debug('Escalation succeeded') + self._flags['become_success'] = False + state += 1 + elif self._flags['become_error']: + display.debug('Escalation failed') + self._terminate_process(p) + self._flags['become_error'] = False + raise AnsibleError('Incorrect %s password' % self._play_context.become_method) + elif self._flags['become_nopasswd_error']: + display.debug('Escalation requires password') + self._terminate_process(p) + self._flags['become_nopasswd_error'] = False + raise AnsibleError('Missing %s password' % self._play_context.become_method) + elif self._flags['become_prompt']: + # This shouldn't happen, because we should see the "Sorry, + # try again" message first. + display.debug('Escalation prompt repeated') + self._terminate_process(p) + self._flags['become_prompt'] = False + raise AnsibleError('Incorrect %s password' % self._play_context.become_method) + + # Once we're sure that the privilege escalation prompt, if any, has + # been dealt with, we can send any initial data and start waiting + # for output. + + if states[state] == 'ready_to_send': + if in_data: + self._send_initial_data(stdin, in_data) + state += 1 + + # Now we're awaiting_exit: has the child process exited? If it has, + # and we've read all available output from it, we're done. + + if p.poll() is not None: + if not rpipes or not rfd: + break + + # When ssh has ControlMaster (+ControlPath/Persist) enabled, the + # first connection goes into the background and we never see EOF + # on stderr. If we see EOF on stdout and the process has exited, + # we're probably done. We call select again with a zero timeout, + # just to make certain we don't miss anything that may have been + # written to stderr between the time we called select() and when + # we learned that the process had finished. + + if p.stdout not in rpipes: + timeout = 0 + continue + + # If the process has not yet exited, but we've already read EOF from + # its stdout and stderr (and thus removed both from rpipes), we can + # just wait for it to exit. + + elif not rpipes: + p.wait() + break + + # Otherwise there may still be outstanding data to read. + + # close stdin after process is terminated and stdout/stderr are read + # completely (see also issue #848) + stdin.close() + + if C.HOST_KEY_CHECKING: + if cmd[0] == b"sshpass" and p.returncode == 6: + raise AnsibleError('Using a SSH password instead of a key is not possible because Host Key checking is enabled and sshpass does not support this. Please add this host\'s fingerprint to your known_hosts file to manage this host.') + + controlpersisterror = 'Bad configuration option: ControlPersist' in stderr or 'unknown configuration option: ControlPersist' in stderr + if p.returncode != 0 and controlpersisterror: + raise AnsibleError('using -c ssh on certain older ssh versions may not support ControlPersist, set ANSIBLE_SSH_ARGS="" (or ssh_args in [ssh_connection] section of the config file) before running again') + + if p.returncode == 255 and in_data: + raise AnsibleConnectionFailure('SSH Error: data could not be sent to the remote host. Make sure this host can be reached over ssh') + + return (p.returncode, stdout, stderr) + + def _exec_command(self, cmd, in_data=None, sudoable=True): + ''' run a command on the remote host ''' + + super(Connection, self).exec_command(cmd, in_data=in_data, sudoable=sudoable) + + display.vvv(u"ESTABLISH SSH CONNECTION FOR USER: {0}".format(self._play_context.remote_user), host=self._play_context.remote_addr) + + # we can only use tty when we are not pipelining the modules. piping + # data into /usr/bin/python inside a tty automatically invokes the + # python interactive-mode but the modules are not compatible with the + # interactive-mode ("unexpected indent" mainly because of empty lines) + + if in_data: + cmd = self._build_command('ssh', self.host, cmd) + else: + cmd = self._build_command('ssh', '-tt', self.host, cmd) + + (returncode, stdout, stderr) = self._run(cmd, in_data, sudoable=sudoable) + + return (returncode, stdout, stderr) + + + + def dir_print(self,obj): + for attr_name in dir(obj): + try: + attr_value = getattr(obj, attr_name) + print(attr_name, attr_value, callable(attr_value)) + except: + pass + + + + def exec_command(self, cmd, in_data=None, sudoable=False): + ''' run a command on the chroot ''' + display.vvv('XXX exec_command: %s' % cmd) + super(Connection, self).exec_command(cmd, in_data=in_data, sudoable=sudoable) + # print dir(self) + # print dir(self._play_context) + # print self._play_context._attributes + # self.dir_print(self._play_context) + # print dir(self._play_context._vars) + # print self._play_context._attributes['vars'] + # vm = self._play_context.get_ds() + # print( vm ) +# raise "blah" + h = self.container_name + lxc_cmd = 'lxc-attach --name %s -- /bin/sh -c %s' \ + % (pipes.quote(h), + pipes.quote(cmd)) + if in_data: + cmd = self._build_command('ssh', self.host, lxc_cmd) + else: + cmd = self._build_command('ssh', '-tt', self.host, lxc_cmd) + #self.ssh.exec_command(lxc_cmd,in_data,sudoable) + (returncode, stdout, stderr) = self._run(cmd, in_data, sudoable=sudoable) + return (returncode, stdout, stderr) + + + def put_file(self, in_path, out_path): + ''' transfer a file from local to lxc ''' + display.vvv('XXX put_file %s %s' % (in_path,out_path)) + super(Connection, self).put_file(in_path, out_path) + if not os.path.exists(in_path): + raise errors.AnsibleFileNotFound("file or module does not exist: %s" % in_path) + + with open(in_path,'r') as in_f: + in_data = in_f.read() + cmd = ('cat > %s; echo -n done' % pipes.quote(out_path)) + h = self.container_name + lxc_cmd = 'lxc-attach --name %s -- /bin/sh -c %s' \ + % (pipes.quote(h), + pipes.quote(cmd)) + if in_data: + cmd = self._build_command('ssh', self.host, lxc_cmd) + else: + cmd = self._build_command('ssh', '-tt', self.host, lxc_cmd) + #self.ssh.exec_command(lxc_cmd,in_data,sudoable) + (returncode, stdout, stderr) = self._run(cmd, in_data, sudoable=False) + return (returncode, stdout, stderr) + + def fetch_file(self, in_path, out_path): + ''' fetch a file from lxc to local ''' + display.vvv('XXX fetch_file %s %s' % (in_path,out_path)) + super(Connection, self).fetch_file(in_path, out_path) + cmd = ('cat %s' % pipes.quote(in_path)) + h = self.container_name + lxc_cmd = 'lxc-attach --name %s -- /bin/sh -c %s' \ + % (pipes.quote(h), + pipes.quote(cmd)) + in_data = None + if in_data: + cmd = self._build_command('ssh', self.host, lxc_cmd) + else: + cmd = self._build_command('ssh', '-tt', self.host, lxc_cmd) + (returncode, stdout, stderr) = self._run(cmd, in_data, sudoable=False) + if returncode != 0: + raise AnsibleError("failed to transfer file from {0}:\n{1}\n{2}".format(in_path, stdout, stderr)) + with open(out_path,'w') as out_f: + out_f.write(stdout) + + def close(self): + ''' terminate the connection; nothing to do here ''' + display.vvv('XXX close') + super(Connection, self).close() + #self.ssh.close() + self._connected = False diff --git a/lists.yaml b/lists.yaml index 8a678f6..cef9fc7 100644 --- a/lists.yaml +++ b/lists.yaml @@ -1,8 +1,11 @@ --- - hosts: biff roles: - - role: lxc_guest - vm_name: lists + - role: lxc_guest + vm_name: lists + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: lists - hosts: lists roles: - role: sympa diff --git a/logger.yaml b/logger.yaml index 9ec10d7..0bddab5 100644 --- a/logger.yaml +++ b/logger.yaml @@ -3,6 +3,9 @@ roles: - role: lxc_guest vm_name: logger + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: logger - hosts: all tasks: @@ -35,7 +38,7 @@ - hosts: all vars: - - log_destination: + - log_destination: tasks: - name: Configure rsyslog client template: diff --git a/mail.yaml b/mail.yaml index c8bdd0a..e25dda8 100644 --- a/mail.yaml +++ b/mail.yaml @@ -1,8 +1,11 @@ --- - hosts: biff roles: - - role: lxc_guest - vm_name: mail + - role: lxc_guest + vm_name: mail + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: mail - hosts: mail roles: - role: postfix diff --git a/projects.yaml b/projects.yaml index cddc76d..d324e1c 100644 --- a/projects.yaml +++ b/projects.yaml @@ -1,9 +1,12 @@ --- - hosts: biff roles: - - role: lxc_guest - vm_name: projects - # distro: sid + - role: lxc_guest + vm_name: projects + # distro: sid + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: projects - hosts: projects roles: - role: gitlab diff --git a/roles/lxc_guest/tasks/main.yaml b/roles/lxc_guest/tasks/main.yaml index a204821..3b184a2 100644 --- a/roles/lxc_guest/tasks/main.yaml +++ b/roles/lxc_guest/tasks/main.yaml @@ -72,96 +72,6 @@ register: container_dns_configuration changed_when: "container_dns_configuration.stdout != 'nameserver {{ hostvars[ext_gateway].ansible_host }}'" - -- name: Check if host certificate exists - container_file_exists: - name: "{{ vm_name }}" - path: "/etc/ssh/ssh_host_ed25519_key-cert.pub" - register: vm_ssh_certificate_exists - -- debug: - var: vm_ssh_certificate_exists - verbosity: 2 - -- block: - - name: Read host public key - container_file_read: - name: "{{ vm_name }}" - path: "/etc/ssh/ssh_host_ed25519_key.pub" - register: vm_public_key - - - debug: - var: vm_public_key - verbosity: 2 - - - name: generate host request - set_fact: - cert_request: - type: 'sign_request' - request: - keyType: 'ssh_host' - hostName: '{{ vm_name }}' - keyData: '{{ vm_public_key.text }}' - - - debug: - var: cert_request - verbosity: 2 - - - name: start sign request - raw: "{{ cert_request | to_json }}" - delegate_to: ca_request - delegate_facts: True - register: request_result - failed_when: "( request_result.stdout | from_json ).failed" - - - debug: - var: request_result - verbosity: 2 - - - set_fact: - request_output: "{{ request_result.results[0].stdout | from_json }}" - - - debug: - var: request_output - verbosity: 2 - - - name: generate get request - set_fact: - get_request: - type: 'get_certificate' - requestID: '{{ request_output.requestID }}' - - - debug: - var: get_request - verbosity: 2 - - - debug: - msg: "Please manualy confirm sign request with id {{ request_output.requestID }}" - - - name: wait for cert - raw: "{{ get_request | to_json }}" - delegate_to: ca_request - delegate_facts: True - register: cert_result - failed_when: "(cert_result.stdout | from_json).failed" - - - debug: - var: cert_result - verbosity: 2 - - - set_fact: - cert_key: "{{ cert_result.results[0].stdout | string | from_json }}" - - - name: Write certificate to container - container_file_write: - name: "{{ vm_name }}" - path: "/etc/ssh/ssh_host_ed25519_key-cert.pub" - text: "{{ cert_key.result }}" - register: set_pub_key - notify: restart container - when: "not vm_ssh_certificate_exists.exists" - - - name: update container network configuration shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep -F 'iface eth0 inet manual' /etc/network/interfaces || sed -i 's/iface eth0 inet dhcp/iface eth0 inet manual/' /etc/network/interfaces" register: container_network @@ -174,38 +84,10 @@ changed_when: "install_packages.stdout.find('0 newly installed') == -1" notify: restart container -- name: lookup user ca key - set_fact: - user_ca_key: "{{ lookup('file', 'test_ssh_ca.pub') }}" - -- name: Update container user CA key - container_file_write: - name: "{{ vm_name }}" - path: "/etc/ssh/user_ca.pub" - text: "ssh-rsa {{ user_ca_key }}" - -- name: trust user ca key - shell: lxc-attach -n {{ vm_name }} --clear-env -e -- bash -c "grep -F 'TrustedUserCAKeys /etc/ssh/user_ca.pub' /etc/ssh/sshd_config || echo 'TrustedUserCAKeys /etc/ssh/user_ca.pub' >> /etc/ssh/sshd_config" - register: trust_ca_key - changed_when: "trust_ca_key.stdout != 'TrustedUserCAKeys /etc/ssh/user_ca.pub'" - notify: restart container - # Restart container when one in # - container_dns_configuration # - network conf has changed - # - set_pub_key # - install_packages - # - trust_ca_key # - container_network # is changed by executing handlers now - meta: flush_handlers - -- name: "waiting for ssh on {{ vm_name }} vm to start" - wait_for: - host: "{{ hostvars[vm_name]['ansible_host'] }}" - port: 22 - timeout: 30 - delegate_to: "{{ inventory_hostname }}" - delegate_facts: True - -- pause: seconds=20 diff --git a/roles/ssh_server/handlers/main.yaml b/roles/ssh_server/handlers/main.yaml new file mode 100644 index 0000000..8e79e00 --- /dev/null +++ b/roles/ssh_server/handlers/main.yaml @@ -0,0 +1,8 @@ +--- +- include: service.yaml + # static: yes # see static include issue: https://github.com/ansible/ansible/issues/13485 + vars: + service_name: ssh + service_packages: + - openssh + diff --git a/roles/ssh_server/tasks/main.yaml b/roles/ssh_server/tasks/main.yaml new file mode 100644 index 0000000..b0350f1 --- /dev/null +++ b/roles/ssh_server/tasks/main.yaml @@ -0,0 +1,132 @@ +- include: service.yaml + # static: yes # see static include issue: https://github.com/ansible/ansible/issues/13485 + vars: + service_name: ssh + service_packages: + - openssh-server + +- name: Check if host certificate exists + stat: + path: "/etc/ssh/ssh_host_ed25519_key-cert.pub" + register: vm_ssh_certificate_exists + +- debug: + var: vm_ssh_certificate_exists + verbosity: 2 + +- block: + - name: Read host public key + slurp: + src: "/etc/ssh/ssh_host_ed25519_key.pub" + register: vm_public_key + + - debug: + var: vm_public_key['content'] + verbosity: 2 + + - name: read hostname + shell: /bin/hostname + register: hostname_result + changed_when: false + + - name: generate host request + set_fact: + cert_request: + type: 'sign_request' + request: + keyType: 'ssh_host' + hostName: '{{ hostname_result.stdout }}' + keyData: "{{ vm_public_key['content'] | b64decode | replace('\n', '')}}" + + - debug: + var: cert_request | to_json + verbosity: 2 + + - name: start sign request + raw: "{{ cert_request | to_json }}" + delegate_to: ca_request + delegate_facts: True + connection: ssh + register: request_result + failed_when: "( request_result.stdout | from_json ).failed" + + - debug: + var: request_result + verbosity: 2 + + - set_fact: + request_output: "{{ request_result.stdout | from_json }}" + + - debug: + var: request_output + verbosity: 2 + + - name: generate get request + set_fact: + get_request: + type: 'get_certificate' + requestID: '{{ request_output.requestID }}' + + - debug: + var: get_request + verbosity: 2 + + - debug: + msg: "Please manualy confirm sign request with id {{ request_output.requestID }}" + + - name: wait for cert + raw: "{{ get_request | to_json }}" + delegate_to: ca_request + delegate_facts: True + connection: ssh + register: cert_result + failed_when: "(cert_result.stdout | from_json).failed" + + - debug: + var: cert_result + verbosity: 2 + + - set_fact: + cert_key: "{{ cert_result.stdout | string | from_json }}" + + - name: Write certificate to container + copy: + content: "{{ cert_key.result }}" + dest: "/etc/ssh/ssh_host_ed25519_key-cert.pub" + register: set_pub_key + notify: restart ssh + when: "not vm_ssh_certificate_exists.stat.exists" + + +- name: lookup user ca key + set_fact: + user_ca_key: "{{ lookup('file', 'test_ssh_ca.pub') }}" + +- name: Update container user CA key + copy: + content: "ssh-rsa {{ user_ca_key }}" + dest: "/etc/ssh/user_ca.pub" + +- name: add certificate to sshd config + lineinfile: + line: 'HostCertificate /etc/ssh/ssh_host_ed25519_key-cert.pub' + dest: '/etc/ssh/sshd_config' + regexp: '^HostCertificate *' + notify: restart ssh + +- name: trust user ca key + lineinfile: + line: 'TrustedUserCAKeys /etc/ssh/user_ca.pub' + dest: '/etc/ssh/sshd_config' + regexp: '^TrustedUserCAKeys *' + notify: restart ssh + +- meta: flush_handlers + +- name: "waiting for ssh on {{ inventory_hostname }} vm to start" + wait_for: + host: "{{ hostvars[inventory_hostname]['ansible_host'] }}" + port: 22 + timeout: 30 + delegate_to: "{{ inventory_hostname }}" + delegate_facts: True diff --git a/team_server.yaml b/team_server.yaml index 792b192..aec05f8 100644 --- a/team_server.yaml +++ b/team_server.yaml @@ -1,8 +1,11 @@ --- - hosts: lilikhost roles: - - role: lxc_guest - vm_name: team + - role: lxc_guest + vm_name: team + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: team - hosts: team roles: - role: mattermost diff --git a/users.yaml b/users.yaml index 3670fd0..f055d7d 100644 --- a/users.yaml +++ b/users.yaml @@ -1,8 +1,11 @@ --- - hosts: biff roles: - - role: lxc_guest - vm_name: users + - role: lxc_guest + vm_name: users + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: users - hosts: users roles: - role: fail2ban diff --git a/webmail.yaml b/webmail.yaml index 96bb621..0884dbf 100644 --- a/webmail.yaml +++ b/webmail.yaml @@ -1,8 +1,11 @@ --- - hosts: biff roles: - - role: lxc_guest - vm_name: webmail + - role: lxc_guest + vm_name: webmail + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: webmail - hosts: webmail roles: - role: roundcube diff --git a/wiki.yaml b/wiki.yaml index e99aef9..cb7bb83 100644 --- a/wiki.yaml +++ b/wiki.yaml @@ -3,6 +3,9 @@ roles: - role: lxc_guest vm_name: wiki + - role: ssh_server + connection: lxc_ssh + ansible_docker_extra_args: wiki - hosts: wiki roles: - role: dokuwiki