在ansible中，如何在同一台远程计算机上同步2个文件夹？

我有以下简单的任务：

将文件夹A中的所有内容复制到文件夹B.由于组中有许多主机，因此我使用以下yaml任务定义：

- name: Sync /etc/spark/conf to $SPARK_HOME/conf
  synchronize: src=/etc/spark/conf dest={{spark_home}}/conf
  delegate_to: "{{item}}"
  with_items: "{{play_hosts}}"
  tags: spark

但是，运行ansible-playbook给了我以下错误：

TASK [cloudera : Sync /etc/spark/conf to $SPARK_HOME/conf] *********************
failed: [52.53.220.119 -> 52.53.200.0] (item=52.53.200.0) => {"cmd": "/usr/bin/rsync --delay-updates -F --compress --archive --rsh 'ssh -i /home/peng/.ssh/saphana.pem -S none -o StrictHostKeyChecking=no' --rsync-path=\"sudo rsync\" --out-format='<<CHANGED>>%i %n%L' \"/etc/spark/conf\" \"52.53.220.119:/opt/spark/spark-1.6.2-bin-hadoop2.4/conf\"", "failed": true, "item": "52.53.200.0", "msg": "Warning: Identity file /home/peng/.ssh/saphana.pem not accessible: No such file or directory.\nPermission denied (publickey).\r\nrsync: connection unexpectedly closed (0 bytes received so far) [sender]\nrsync error: unexplained error (code 255) at io.c(226) [sender=3.1.0]\n", "rc": 255}
failed: [52.53.200.193 -> 52.53.200.0] (item=52.53.200.0) => {"cmd": "/usr/bin/rsync --delay-updates -F --compress --archive --rsh 'ssh -i /home/peng/.ssh/saphana.pem -S none -o StrictHostKeyChecking=no' --rsync-path=\"sudo rsync\" --out-format='<<CHANGED>>%i %n%L' \"/etc/spark/conf\" \"52.53.200.193:/opt/spark/spark-1.6.2-bin-hadoop2.4/conf\"", "failed": true, "item": "52.53.200.0", "msg": "Warning: Identity file /home/peng/.ssh/saphana.pem not accessible: No such file or directory.\nPermission denied (publickey).\r\nrsync: connection unexpectedly closed (0 bytes received so far) [sender]\nrsync error: unexplained error (code 255) at io.c(226) [sender=3.1.0]\n", "rc": 255}
ok: [52.53.200.0 -> 52.53.200.0] => (item=52.53.200.0)
ok: [52.53.220.119 -> 52.53.220.119] => (item=52.53.220.119)
failed: [52.53.200.193 -> 52.53.220.119] (item=52.53.220.119) => {"cmd": "/usr/bin/rsync --delay-updates -F --compress --archive --rsh 'ssh -i /home/peng/.ssh/saphana.pem -S none -o StrictHostKeyChecking=no' --rsync-path=\"sudo rsync\" --out-format='<<CHANGED>>%i %n%L' \"/etc/spark/conf\" \"52.53.200.193:/opt/spark/spark-1.6.2-bin-hadoop2.4/conf\"", "failed": true, "item": "52.53.220.119", "msg": "Warning: Identity file /home/peng/.ssh/saphana.pem not accessible: No such file or directory.\nPermission denied (publickey).\r\nrsync: connection unexpectedly closed (0 bytes received so far) [sender]\nrsync error: unexplained error (code 255) at io.c(226) [sender=3.1.0]\n", "rc": 255}
failed: [52.53.200.0 -> 52.53.220.119] (item=52.53.220.119) => {"cmd": "/usr/bin/rsync --delay-updates -F --compress --archive --rsh 'ssh -i /home/peng/.ssh/saphana.pem -S none -o StrictHostKeyChecking=no' --rsync-path=\"sudo rsync\" --out-format='<<CHANGED>>%i %n%L' \"/etc/spark/conf\" \"52.53.200.0:/opt/spark/spark-1.6.2-bin-hadoop2.4/conf\"", "failed": true, "item": "52.53.220.119", "msg": "Warning: Identity file /home/peng/.ssh/saphana.pem not accessible: No such file or directory.\nPermission denied (publickey).\r\nrsync: connection unexpectedly closed (0 bytes received so far) [sender]\nrsync error: unexplained error (code 255) at io.c(226) [sender=3.1.0]\n", "rc": 255}
ok: [52.53.200.193 -> 52.53.200.193] => (item=52.53.200.193)
failed: [52.53.220.119 -> 52.53.200.193] (item=52.53.200.193) => {"cmd": "/usr/bin/rsync --delay-updates -F --compress --archive --rsh 'ssh -i /home/peng/.ssh/saphana.pem -S none -o StrictHostKeyChecking=no' --rsync-path=\"sudo rsync\" --out-format='<<CHANGED>>%i %n%L' \"/etc/spark/conf\" \"52.53.220.119:/opt/spark/spark-1.6.2-bin-hadoop2.4/conf\"", "failed": true, "item": "52.53.200.193", "msg": "Warning: Identity file /home/peng/.ssh/saphana.pem not accessible: No such file or directory.\nPermission denied (publickey).\r\nrsync: connection unexpectedly closed (0 bytes received so far) [sender]\nrsync error: error in rsync protocol data stream (code 12) at io.c(226) [sender=3.1.0]\n", "rc": 12}
failed: [52.53.200.0 -> 52.53.200.193] (item=52.53.200.193) => {"cmd": "/usr/bin/rsync --delay-updates -F --compress --archive --rsh 'ssh -i /home/peng/.ssh/saphana.pem -S none -o StrictHostKeyChecking=no' --rsync-path=\"sudo rsync\" --out-format='<<CHANGED>>%i %n%L' \"/etc/spark/conf\" \"52.53.200.0:/opt/spark/spark-1.6.2-bin-hadoop2.4/conf\"", "failed": true, "item": "52.53.200.193", "msg": "Warning: Identity file /home/peng/.ssh/saphana.pem not accessible: No such file or directory.\nPermission denied (publickey).\r\nrsync: connection unexpectedly closed (0 bytes received so far) [sender]\nrsync error: unexplained error (code 255) at io.c(226) [sender=3.1.0]\n", "rc": 255}

显然，似乎ansible试图在我的所有3个主机之间创建交换对并在每对之间进行同步（因此执行了9个rsync），如何避免这种情况并命令ansible仅在本地执行rsync？

UPDATE ：我已将我的任务定义更改为使用delegate.host：

- name: Sync /etc/spark/conf to $SPARK_HOME/conf
  synchronize: src=/etc/spark/conf dest={{spark_home}}/conf
  delegate_to: delegate.host
  tags: spark

但是ansible引擎显然没有正确解释它，调试日志显示它没有被主机IP地址替代：

为用户 Build SSH连接：无SSH：EXEC ssh -C -q -o ControlMaster = auto -o ControlPersist = 60s -o KbdInteractiveAuthentication = no -o PreferredAuthentications = gssapi-with-mic，gssapi-keyex，hostbased，publickey -o PasswordAuthentication = no -o ConnectTimeout = 10 -o ControlPath = / home / peng / .ansible / cp / ansible-ssh-％h-％p-％r delegate.host'/ bin / sh -c'“'”'（ umask 77 && mkdir -p“echo $ HOME / .ansible / tmp / ansible-tmp-1470667606.38-157157938048153”&& echo ansible-tmp-1470667606.38-157157938048153 =“echo $ HOME / .ansible / tmp / ansible-tmp-1470667606.38- 157157938048153“）&& sleep 0'”''''

这看起来像一个弃用的功能，我使用ansible 2.1.0.0