如果不满足某些条件，如何跳过 ansible 剧本中的所有其他剧本?

I have end_play in Play1 but it only skips Play1 and it still executes Play2 and Play3---- name: Play 1 hosts: 127.0.0.1 tasks: - name: find the latest file find: paths=/var/lib/jenkins/jobs/process/workspace/files file_type=file age=-1m age_stamp=mtime register: files - meta: end_play when: files.files|count == 0 - name: Copy file, if found copy: src: "some stuff here" dest: "some other stuff here" when: files.files|count > 0- name: Play 2 hosts: all serial: 5 tasks: - name: copy latest file copy: src=data_init/goldy.init.qa dest=/data01/admin/files/goldy.init.qa owner=golden group=golden - name: copy latest file copy: src=data_init/goldy.init.qa dest=/data02/admin/files/goldy.init.qa owner=golden group=golden- name: Play 3 hosts: 127.0.0.1 tasks: - name: execute command shell: ./data_init --init_file ./goldy.init.qa args: chdir: /var/lib/jenkins/jobs/process/workspace/data_init/更新:所以块模块解决方案看起来不起作用，因为你不能像那样在块中使用嵌套播放..So block module solution doesn't work looks like because you cannot use nested play in block like that..推荐答案有两种方法可以解决您的问题:There are two ways to approach your issue:尽管您尝试定义一个 hosts: localhost 来在控制器上运行一些任务是可以理解的，但您实际上并不需要它.使用 delegate_to: localhost 和run_once: true在控制器上运行的步骤是一个更好的方法.如果你真的想走这条路(使用hosts: localhost)，出于某种原因，那么你需要保存你的find的返回，用set_fact 按顺序在全局 hostvarsAlthough it is understandable that you tried defining a hosts: localhost to run some tasks on the controller, you don't really need this. Using delegate_to: localhost and run_once: true on the steps you want to run on your controller is a far better approach.If you really want to go this way (using hosts: localhost), for some reason, then you'll need to save the return of your find, with set_fact in order to reuse it in other hosts with the help of the global hostvars使用委托剧中的任何任务都可以委托给其他主持人.这很简单，只需在您的任务中使用一个额外的 delegate_to 选项:- name: Delegate a find to localhost find: path: /test file_type: any register: localhost_find delegate_to: localhost run_once: true这样做时，我建议您也使用 run_once: true，因为如果您将任务委托给另一个主机，则没有必要，假设您运行十次您的主机组中有十个主机.When doing so, I would advice you to also use run_once: true, because, if you delegate the task to another host, there is no need to, let's say run it ten times if you have ten hosts in your host group.这里有一个关于这个的小例子Here is a little example about that---- hosts: hosts become: true gather_facts: false tasks: - name: Delegate directory creation to localhost file: path: /test state: directory delegate_to: localhost run_once: true - name: Create directory on hosts file: path: /test state: directory - name: Delegate file creation to localhost file: path: /test/localhost.txt state: touch delegate_to: localhost run_once: true - name: Create file on hosts file: path: /test/host.txt state: touch - name: Delegate a find to localhost find: path: /test file_type: any register: localhost_find delegate_to: localhost run_once: true - name: Find in the hosts for comparison find: path: /test file_type: any register: host_find - name: List /test of localhost debug: msg: "{{ localhost_find.files | map(attribute='path') | list }}" - name: List /test of host debug: msg: "{{ host_find.files | map(attribute='path') | list }}" - name: Remove /test folder on localhost file: path: /test state: absent delegate_to: localhost run_once: true - name: Delegate an empty find to localhost find: path: /test file_type: any register: empty_find delegate_to: localhost run_once: true - name: Here are our hostnames from the inventory debug: msg: "{{ inventory_hostname }}" - name: I am the evil host killer meta: end_host when: empty_find.files | count == 0 and inventory_hostname != 'host1' - debug: msg: "I am a sad message, because I will never display :'( But hopefully host1 likes me :')" - name: I am the evil playbook killer meta: end_play when: empty_find.files | count == 0 - debug: msg: "I am a sad message, because I will never display :'( No one likes me..."你可以看到，当我结束前一步主机组中的三个主机中的两个时，我通过结束播放跳过了最后一条调试消息.Where you can see, that, I am skipping the very last debug message by ending the play, when I ended two out of the three hosts I have in my hosts group on the step before.该剧本的输出:PLAY [hosts] **************************************************************************************************************************TASK [Delegate directory creation to localhost] ***************************************************************************************ok: [host1 -> localhost]TASK [Create directory on hosts] ****************************************************************************************************ok: [host3]ok: [host2]ok: [host1]TASK [Delegate file creation to localhost] ********************************************************************************************changed: [host1 -> localhost]TASK [Create file on hosts] ****************************************************************************************************changed: [host2]changed: [host1]changed: [host3]TASK [Delegate a find to localhost] ***************************************************************************************************ok: [host1 -> localhost]TASK [Find in the host for comparison] ************************************************************************************************ok: [host1]ok: [host3]ok: [host2]TASK [List /test of localhost] ********************************************************************************************************ok: [host1] => { "msg": [ "/test/localhost.txt" ]}ok: [host2] => { "msg": [ "/test/localhost.txt" ]}ok: [host3] => { "msg": [ "/test/localhost.txt" ]}TASK [List /test of host] *************************************************************************************************************ok: [host1] => { "msg": [ "/test/host.txt" ]}ok: [host2] => { "msg": [ "/test/host.txt" ]}ok: [host3] => { "msg": [ "/test/host.txt" ]}TASK [Remove /test folder on localhost] ***********************************************************************************************changed: [host1 -> localhost]TASK [Delegate an empty find to localhost] ********************************************************************************************ok: [host1 -> localhost]TASK [Here are our hostnames from the inventory] **************************************************************************************ok: [host1] => { "msg": "host1"}ok: [host2] => { "msg": "host2"}ok: [host3] => { "msg": "host3"}TASK [debug] **************************************************************************************************************************ok: [host1] => { "msg": "I am a sad message, because I will never display :'( But hopefully host1 likes me :')"}PLAY RECAP ****************************************************************************************************************************host1 : ok=12 changed=3 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 host2 : ok=6 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 host3 : ok=6 changed=1 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 在输出中，您可以很容易地发现委托，就像输出一样In the output, you can easily spot the delegation, as is will output changed: [host1 -> localhost]当一个非委派的任务会去时When a non-delegated task would just gochanged: [host1]使用主机变量我想说这种方法不太先进，但如果您想委托处理边缘情况，可能会很方便.我以前用过它，所以它并不是没有最终无法解决的情况.Using hostvarsI would say the approach is a little bit less state of the art, but could become handy if you would like to delegate on edge cases. I have used it before, so it is not like there is no situation where it could not end up has being the right solution.这是例子---- hosts: localhost gather_facts: false tasks: - name: Find in localhost find: path: /not/existing/folder file_type: any register: find - name: This will register the list under find.files as a variable on the host, making it accessible via hostvars set_fact: find_result: "{{ find.files }}" - meta: end_play when: find.files | count == 0 - debug: msg: I am the sanity check message, proving the end_play did happen- hosts: hosts gather_facts: false tasks: - name: Just to show we are not cheating with an empty host group, we display the hosts names debug: msg: "{{ inventory_hostname }}" - name: To show it is really our empty list and not an empty string or a null variable debug: msg: "{{ hostvars['localhost']['find_result'] }}" - meta: end_play when: "hostvars['localhost']['find_result'] | count == 0" - debug: msg: I am a first sanity check message, proving the end_play did happen - debug: msg: I am a second sanity check message, proving the end_play did happen- hosts: localhost gather_facts: false tasks: - name: To show it is really our empty list and not an empty string or a null variable debug: msg: "{{ hostvars['localhost']['find_result'] }}" - meta: end_play when: "hostvars['localhost']['find_result'] | count == 0" - debug: msg: I am a first sanity check message, proving the end_play did happen - debug: msg: I am a second sanity check message, proving the end_play did happen您可以看到，在主机的每个新任务组开始时，我只是根据变量 find_result 运行 meta 来结束播放注册出find结果Where you can see that, at the beginning of each new tasks group for a host, I just run the meta to end the play, based on the variable find_result registered out of the find result这是这个的输出PLAY [localhost] **********************************************************************************************************************TASK [Find in localhost] **************************************************************************************************************ok: [localhost]TASK [This will register the list under find.files as a variable on the host, making it accessible via hostvars] *********************ok: [localhost]PLAY [hosts] **************************************************************************************************************************TASK [Just to show we are not cheating with an empty host group, we display the hosts names] ******************************************ok: [host1] => { "msg": "host1"}ok: [host2] => { "msg": "host2"}ok: [host3] => { "msg": "host3"}TASK [To show it is really our empty list and not an empty string or a null variable] ************************************************ok: [host1] => { "msg": []}ok: [host2] => { "msg": []}ok: [host3] => { "msg": []}PLAY [localhost] **********************************************************************************************************************TASK [To show it is really our empty list and not an empty string or a null variable] ************************************************ok: [localhost] => { "msg": []}PLAY RECAP ****************************************************************************************************************************host1 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 host2 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 host3 : ok=2 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 localhost : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 这篇关于如果不满足某些条件，如何跳过 ansible 剧本中的所有其他剧本?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！