Re: [ansible-project] Re: Need help about Ansible block syntax

[Brian Coca]

'tasks' is a property of a play, it should ONLY appear at the play level





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Brian Coca

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[ansible-project] Re: Need help about Ansible block syntax

[JiElPe-Fr38]

Thanks all for your help.
I have been really bored with the block... but I finally succeed. The 
ansible / yaml syntax is not always straightforward to understand (or I 
lack some skills).

I went back to the ansible block documentation 
, and make a 
trial replacing my main.yml file with the example on the page, i.e.  :
cat roles/devTools/tasks/main.yml
tasks:
  - name: Install Apache
block:
  - yum: name={{ item }} state=installed
with_items:
  - httpd
  - memcached
  - template: src=templates/src.j2 dest=/etc/foo.conf
  - service: name=bar state=started enabled=True
when: ansible_distribution == 'CentOS'
become: true
become_user: root

And I still get an error saying that the role must contain a list of task :
ERROR! The tasks/main.yml file for role 'devTools' must contain a list of 
tasks

The error appears to have been in 
'/home/jeanlupi/centos_test/myKnowledge/devOps/playbook/roles/devTools/tasks/main.yml'
: line 1, column 1, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:


tasks:
^ here

Ok... I removed "tasks" (don't clearly understand why it must not be 
there...) and the problem disappeared.
After several other syntax errors (probably not totally sticked to block), 
I succeeded with :

cat roles/devTools/tasks/RedHat.yml
  - name: Update Red Hat machine
block:
  - yum: update_cache=yes name="*" state=latest
notify: "restart {{ ansible_os_family }} host"
  - yum: name="{{item}}" state=present
with_items: "{{ toolList }}"
notify: "restart {{ ansible_os_family }} host"
when: ansible_pkg_mgr == 'yum'
become: true
become_user: root



As mentioned in the answers, notify must not be set at block level, but 
after each enclosed task.

Thanks for your help.
Have a nice day.
JiElPe

Le mercredi 31 janvier 2018 16:29:00 UTC+1, JiElPe-Fr38 a écrit :
>
> Dear all,
>
> I am quite new to Ansible and try to "make a tour"...
> I am using ansible 2.4.2.0 with cygwin64 on Win7.
>
>
> I am currently make a personal training and find that I could use a block 
> to "enclose" (ok, perhaps wrong term) a couple of task that have some 
> common "properties" (like become_user: root ...).
> The idea is to change this :
>
> ---
> - name: Update Red Hat machine
>   yum:
> update_cache: yes
> name: '*'
> state: latest
>   when: ansible_pkg_mgr == 'yum'
>   become: true
>   become_user: root
>   ignore_errors: yes
>   notify: "restart {{ ansible_os_family }} host"
>
> - name: Install RedHat tools
>   yum:
> name: "{{ item }}"
> state: present
>   with_items: "{{ toolList }}"
>   when: ansible_pkg_mgr == 'yum'
>   become: true
>   become_user: root
>   ignore_errors: yes
>   notify: "restart {{ ansible_os_family }} host"
>
>
>
> into a block based syntax so that I can factorize the become / notify and 
> when statement.
> II have made several trials without any success.
> Playing the file below :
> ---
> -block:
>   - name: Update Red Hat machine
> yum:
>   update_cache: yes
>   name: '*'
>   state: latest
>
>   - name: Install RedHat tools
> yum:
>   name: "{{ item }}"
>   state: present
>   with_items: "{{ toolList }}"
>
>   when: ansible_pkg_mgr == 'yum'
>   become: true
>   become_user: root
>   ignore_errors: yes
>   notify: "restart {{ ansible_os_family }} host"
>
> I get this error :
> fatal: [ci-server]: FAILED! => {"reason": "Syntax Error while loading 
> YAML.\n\n\nThe error appears to have been in 
> '/home/jeanlupi/centos_test/myKnowledge/devOps/playbook/roles/devTools/tasks/RedHat.yml':
>  
> line 16, column 3, but may\nbe elsewhere in the file depending on the exact 
> syntax problem.\n\nThe offending line appears to be:\n\n\n  when: 
> ansible_pkg_mgr == 'yum'\n  ^ here\n\nexception type:  'yaml.parser.ParserError'>\nexception: while parsing a block collection\n  
> in \"\", line 3, column 3:\n  - name: Update Red Hat 
> machine\n  ^\nexpected , but found '?'\n  in \" string>\", line 16, column 3:\n  when: ansible_pkg_mgr == 'yum'\n  
> ^"}
>
>
>
> If someone could help I would be very glad ! 
>
> Thanks !
> JiElPe
>
>

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[ansible-project] Re: Need help about Ansible block syntax

[Malcolm Hussain-Gambles]

Notify should go after each of the tasks.
You could set a fact in the block then check that and notify afterwards though

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[ansible-project] Re: Need help about Ansible block syntax

[ZillaYT]

block does not support ALL the features of a simple task so this may be 
your issue. For example, it may not support notify, but you'll need to look 
at this.

On Wednesday, January 31, 2018 at 10:29:00 AM UTC-5, JiElPe-Fr38 wrote:
>
> Dear all,
>
> I am quite new to Ansible and try to "make a tour"...
> I am using ansible 2.4.2.0 with cygwin64 on Win7.
>
>
> I am currently make a personal training and find that I could use a block 
> to "enclose" (ok, perhaps wrong term) a couple of task that have some 
> common "properties" (like become_user: root ...).
> The idea is to change this :
>
> ---
> - name: Update Red Hat machine
>   yum:
> update_cache: yes
> name: '*'
> state: latest
>   when: ansible_pkg_mgr == 'yum'
>   become: true
>   become_user: root
>   ignore_errors: yes
>   notify: "restart {{ ansible_os_family }} host"
>
> - name: Install RedHat tools
>   yum:
> name: "{{ item }}"
> state: present
>   with_items: "{{ toolList }}"
>   when: ansible_pkg_mgr == 'yum'
>   become: true
>   become_user: root
>   ignore_errors: yes
>   notify: "restart {{ ansible_os_family }} host"
>
>
>
> into a block based syntax so that I can factorize the become / notify and 
> when statement.
> II have made several trials without any success.
> Playing the file below :
> ---
> -block:
>   - name: Update Red Hat machine
> yum:
>   update_cache: yes
>   name: '*'
>   state: latest
>
>   - name: Install RedHat tools
> yum:
>   name: "{{ item }}"
>   state: present
>   with_items: "{{ toolList }}"
>
>   when: ansible_pkg_mgr == 'yum'
>   become: true
>   become_user: root
>   ignore_errors: yes
>   notify: "restart {{ ansible_os_family }} host"
>
> I get this error :
> fatal: [ci-server]: FAILED! => {"reason": "Syntax Error while loading 
> YAML.\n\n\nThe error appears to have been in 
> '/home/jeanlupi/centos_test/myKnowledge/devOps/playbook/roles/devTools/tasks/RedHat.yml':
>  
> line 16, column 3, but may\nbe elsewhere in the file depending on the exact 
> syntax problem.\n\nThe offending line appears to be:\n\n\n  when: 
> ansible_pkg_mgr == 'yum'\n  ^ here\n\nexception type:  'yaml.parser.ParserError'>\nexception: while parsing a block collection\n  
> in \"\", line 3, column 3:\n  - name: Update Red Hat 
> machine\n  ^\nexpected , but found '?'\n  in \" string>\", line 16, column 3:\n  when: ansible_pkg_mgr == 'yum'\n  
> ^"}
>
>
>
> If someone could help I would be very glad ! 
>
> Thanks !
> JiElPe
>
>

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