如果不满足某些条件，如何跳过ansible剧本中的所有其他剧本?

这是这一个的输出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 I have multiple plays in below playbook. I want to ignore all other plays if some condition is not met.So for below example - If I cannot find any new file in Play1 then I don't want to execute Play2 and Play3 at all (it should skip it). How can I do that?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/Update:So block module solution doesn't work looks like because you cannot use nested play in block like that.. 解决方案 There are two ways to approach your issue:Although 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 hostvarsUsing delegationAny task in the play can be delegated to another host. This is quite simple to do and would just use one extra delegate_to options on your task:- name: Delegate a find to localhost find: path: /test file_type: any register: localhost_find delegate_to: localhost run_once: trueWhen 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.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..."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.Output of that playbook: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 In the output, you can easily spot the delegation, as is will output changed: [host1 -> localhost]When a non-delegated task would just gochanged: [host1]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.Here is the example---- 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 happenWhere 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 resultHere is the output for this onePLAY [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！