Contents

rsync module to add salt

Contents

 In salt development version already has this function.

Salt version of me in my server used above is 2015.5.8 (Lithium), state module does not rsync, and you know it is crazy  update all server to development version, So I ported this function to the current version. It’s very simple.

Add a custom module and state module,Copy the files from the development version over, only need a simple modification.

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# mkdir /srv/salt/_modules  
# mkdir /srv/salt/_states  
# vim /srv/salt/_modules/rsync.py  
    # -*- coding: utf-8 -*-  
    '''  
    Wrapper for rsync  
  
    .. versionadded:: 2014.1.0  
  
    This data can also be passed into :doc:`pillar </topics/tutorials/pillar>`.  
    Options passed into opts will overwrite options passed into pillar.  
    '''  
    from __future__ import absolute_import  
  
    # Import python libs  
    import errno  
    import logging  
  
    # Import salt libs  
    import salt.utils  
    from salt.exceptions import CommandExecutionError, SaltInvocationError  
  
    log = logging.getLogger(__name__)  
  
  
    def _check(delete, force, update, passwordfile, exclude, excludefrom):  
        '''  
        Generate rsync options  
        '''  
        options = ['-avz']  
  
        if delete:  
            options.append('--delete')  
        if force:  
            options.append('--force')  
        if update:  
            options.append('--update')  
        if passwordfile:  
            options.extend(['--password-file', passwordfile])  
        if excludefrom:  
            options.extend(['--exclude-from', excludefrom])  
            if exclude:  
                exclude = False  
        if exclude:  
            options.extend(['--exclude', exclude])  
        return options  
  
  
    def rsync(src,  
              dst,  
              delete=False,  
              force=False,  
              update=False,  
              passwordfile=None,  
              exclude=None,  
              excludefrom=None):  
        '''  
        .. versionchanged:: Boron  
            Return data now contains just the output of the rsync command, instead  
            of a dictionary as returned from :py:func:`cmd.run_all  
            <salt.modules.cmdmod.run_all>`.  
  
        Rsync files from src to dst  
  
        CLI Example:  
  
        .. code-block:: bash  
  
            salt '*' rsync.rsync {src} {dst} {delete=True} {update=True} {passwordfile=/etc/pass.crt} {exclude=xx}  
            salt '*' rsync.rsync {src} {dst} {delete=True} {excludefrom=/xx.ini}  
        '''  
        if not src:  
            src = __salt__['config.option']('rsync.src')  
        if not dst:  
            dst = __salt__['config.option']('rsync.dst')  
        if not delete:  
            delete = __salt__['config.option']('rsync.delete')  
        if not force:  
            force = __salt__['config.option']('rsync.force')  
        if not update:  
            update = __salt__['config.option']('rsync.update')  
        if not passwordfile:  
            passwordfile = __salt__['config.option']('rsync.passwordfile')  
        if not exclude:  
            exclude = __salt__['config.option']('rsync.exclude')  
        if not excludefrom:  
            excludefrom = __salt__['config.option']('rsync.excludefrom')  
        if not src or not dst:  
            raise SaltInvocationError('src and dst cannot be empty')  
  
        option = _check(delete, force, update, passwordfile, exclude, excludefrom)  
        cmd = ['rsync'] + option + [src, dst]  
        try:  
            return __salt__['cmd.run_all'](cmd, python_shell=False)  
        except (IOError, OSError) as exc:  
            raise CommandExecutionError(exc.strerror)  
  
  
    def version():  
        '''  
        .. versionchanged:: Boron  
            Return data now contains just the version number as a string, instead  
            of a dictionary as returned from :py:func:`cmd.run_all  
            <salt.modules.cmdmod.run_all>`.  
  
        Returns rsync version  
  
        CLI Example:  
  
        .. code-block:: bash  
  
            salt '*' rsync.version  
        '''  
        try:  
            out = __salt__['cmd.run_stdout'](  
                ['rsync', '--version'],  
                python_shell=False)  
        except (IOError, OSError) as exc:  
            raise CommandExecutionError(exc.strerror)  
        try:  
            return out.split('n')[0].split()[2]  
        except IndexError:  
            raise CommandExecutionError('Unable to determine rsync version')  
  
  
    def config(conf_path='/etc/rsyncd.conf'):  
        '''  
        .. versionchanged:: Boron  
            Return data now contains just the contents of the rsyncd.conf as a  
            string, instead of a dictionary as returned from :py:func:`cmd.run_all  
            <salt.modules.cmdmod.run_all>`.  
  
        Returns the contents of the rsync config file  
  
        conf_path : /etc/rsyncd.conf  
            Path to the config file  
  
        CLI Example:  
  
        .. code-block:: bash  
  
            salt '*' rsync.config  
        '''  
        ret = ''  
        try:  
            with salt.utils.fopen(conf_path, 'r') as fp_:  
                for line in fp_:  
                    ret += line  
        except IOError as exc:  
            if exc.errno == errno.ENOENT:  
                raise CommandExecutionError('{0} does not exist'.format(conf_path))  
            elif exc.errno == errno.EACCES:  
                raise CommandExecutionError(  
                    'Unable to read {0}, access denied'.format(conf_path)  
                )  
            elif exc.errno == errno.EISDIR:  
                raise CommandExecutionError(  
                    'Unable to read {0}, path is a directory'.format(conf_path)  
                )  
            else:  
                raise CommandExecutionError(  
                    'Error {0}: {1}'.format(exc.errno, exc.strerror)  
                )  
        else:  
            return ret  
  
  
# vim /srv/salt/_states/rsync.py  
    # -*- coding: utf-8 -*-  
    #  
    # Copyright 2015 SUSE LLC  
    #  
    # Licensed under the Apache License, Version 2.0 (the "License");  
    # you may not use this file except in compliance with the License.  
    # You may obtain a copy of the License at  
    #  
    # http://www.apache.org/licenses/LICENSE-2.0  
    #  
    # Unless required by applicable law or agreed to in writing, software  
    # distributed under the License is distributed on an "AS IS" BASIS,  
    # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
    # See the License for the specific language governing permissions and  
    # limitations under the License.  
    '''  
    Rsync state.  
  
    .. versionadded:: Boron  
    '''  
  
    from __future__ import absolute_import  
    import salt.utils  
    import os  
  
  
    def __virtual__():  
        '''  
        Only if Rsync is available.  
  
        :return:  
        '''  
        return salt.utils.which('rsync') and 'rsync' or False  
  
  
    def _get_summary(rsync_out):  
        '''  
        Get summary from the rsync successfull output.  
  
        :param rsync_out:  
        :return:  
        '''  
  
        return "- " + "n- ".join([elm for elm in rsync_out.split("nn")[-1].replace("  ", "n").split("n") if elm])  
  
  
    def _get_changes(rsync_out):  
        '''  
        Get changes from the rsync successfull output.  
  
        :param rsync_out:  
        :return:  
        '''  
        copied = list()  
        deleted = list()  
  
        for line in rsync_out.split("nn")[0].split("n")[1:]:  
            if line.startswith("deleting "):  
                deleted.append(line.split(" ", 1)[-1])  
            else:  
                copied.append(line)  
  
        return {  
            'copied': os.linesep.join(sorted(copied)) or "N/A",  
            'deleted': os.linesep.join(sorted(deleted)) or "N/A",  
        }  
  
  
    def synchronized(name, source,  
                     delete=False,  
                     force=False,  
                     update=False,  
                     passwordfile=None,  
                     exclude=None,  
                     excludefrom=None,  
                     prepare=False):  
        '''  
        Guarantees that the source directory is always copied to the target.  
  
        :param name: Name of the target directory.  
        :param source: Source directory.  
        :param prepare: Create destination directory if it does not exists.  
        :param delete: Delete extraneous files from the destination dirs (True or False)  
        :param force: Force deletion of dirs even if not empty  
        :param update: Skip files that are newer on the receiver (True or False)  
        :param passwordfile: Read daemon-access password from the file (path)  
        :param exclude: Exclude files, that matches pattern.  
        :param excludefrom: Read exclude patterns from the file (path)  
        :return:  
  
        .. code-block:: yaml  
  
            /opt/user-backups:  
              rsync.synchronized:  
                - source: /home  
                - force: True  
        '''  
        ret = {'name': name, 'changes': {}, 'result': True, 'comment': ''}  
  
    #    if not os.path.exists(source):  
    #        ret['result'] = False  
    #        ret['comment'] = "Source directory {src} was not found.".format(src=source)  
    #    elif not os.path.exists(name) and not force and not prepare:  
        if not os.path.exists(name) and not force and not prepare:  
            ret['result'] = False  
            ret['comment'] = "Destination directory {dest} was not found.".format(dest=name)  
        else:  
            if not os.path.exists(name) and prepare:  
                os.makedirs(name)  
  
            result = __salt__['rsync.rsync'](src=source, dst=name, delete=delete, force=force, update=update,  
                                             passwordfile=passwordfile, exclude=exclude, excludefrom=excludefrom)  
            if result.get('retcode'):  
                ret['result'] = False  
                ret['comment'] = result['stderr']  
                ret['changes'] = result['stdout']  
            else:  
                ret['comment'] = _get_summary(result['stdout'])  
                ret['changes'] = _get_changes(result['stdout'])  
  
        return ret  
  

Update minion module.

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# salt '*' saltutil.sync_modules  
# salt "*" saltutil.sync_states  

Sync file to minion:```

salt “*” state.sls sync/

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My sls file:```
  
# cat /srv/salt/sync/init.sls  
sync_file:  
    rsync.synchronized:  
        - name: '/home/test/'  
        - source: '[email protected]::test'  
        - delete: False  
        - force: True  
        - prepare: True  
        - passwordfile: '/etc/rsyncd/rsyncd_secrets'