Hello -
Can Ansible call a role from within another role, as if it's calling a
function? Could that other role be passed certain variables at runtime?
I have a few tasks that are repeated several times in my plays. Right now,
I just copy/paste the same task and tweak an object or two as needed.
However, if I want to change something about that repeated task I then have
to find all the places I put it in order for it to change. Also, the
repeated tasks pollute the readability of the task yaml. It lacks
modularity.
I dropped some sample code at the end. The yellow items pull the md5 of two
files for comparison, so I can take certain actions if they don't match. The
blue items are logged results, wherein I may want to tweak the content
later to match changing demands. Could I split out these functions into
their own roles (with passed variables) and call them within a certain
play? I could then have one task with pseudo code "Call role md5
compare(filepath, filename)" and "Call role md5 logging(copy_output)".
I'm new to Ansible and still getting my feet wet. Open to any suggestions.
Thank you! :)
Sample Code:
---
- name: Stage MHE wm.properties file from template
template:
src=wm.properties.j2
dest="{{ staged_config_dir }}/{{ inventory_hostname_short
}}/wm.properties"
backup=yes
- name: Calculate md5 of staged config
stat: path="{{ staged_config_dir }}/{{ inventory_hostname_short
}}/wm.properties"
register: staged_stat
- name: Calculate md5 of target file
stat: path="{{ WM_Home
}}/distribution/DeploymentDirector/installer/properties/wm.properties"
register: target_stat
- name: deploy staged wm.properties file when diff than target
copy:
src: "{{ staged_config_dir }}/{{ inventory_hostname_short
}}/wm.properties"
dest: "{{ WM_Home
}}/distribution/DeploymentDirector/installer/properties/wm.properties"
backup: yes
remote_src: yes
register: wm_properties_copy
when: staged_stat.stat.md5!=target_stat.stat.md5
- name: log deployed changes
copy:
content: "UPDATED wm.properties!\nSource file: {{
wm_properties_copy.src }}\nNew file: {{ wm_properties_copy.dest }}\nBackup
file: {{ wm_properties_copy.backup_file }}"
dest: "{{ staged_config_dir }}/{{ inventory_hostname_short }}/diff.txt"
when: staged_stat.stat.md5!=target_stat.stat.md5
- name: Stage MHE ILSStartup.def.xml file from template
template:
src: ILSStartup.def.xml.j2
dest: "{{ staged_config_dir }}/{{ inventory_hostname_short
}}/ILSStartup.def.xml"
backup: yes
- name: Calculate md5 of staged ILSStartup.def.xml
stat: path="{{ staged_config_dir }}/{{ inventory_hostname_short
}}/ILSStartup.def.xml"
register: staged_stat
- name: Calculate md5 of target ILSStartup.def.xml
stat: path="{{ WM_Home
}}/distribution/DeploymentDirector/installer/templates/ILSStartup.def.xml"
register: target_stat
- name: deploy staged ILSStartup.def.xml file when diff than target
copy:
src: "{{ staged_config_dir }}/{{ inventory_hostname_short
}}/ILSStartup.def.xml"
dest: "{{ WM_Home
}}/distribution/DeploymentDirector/installer/templates/ILSStartup.def.xml"
backup: yes
remote_src: yes
register: ILSStartup_def_xml_copy
when: staged_stat.stat.md5!=target_stat.stat.md5
- name: log ILSStartup.def.xml diff results
copy:
content: "UPDATED ILSStartup.def.xml!\nSource file: {{
ILSStartup_def_xml_copy.src }}\nNew file: {{ ILSStartup_def_xml_copy.dest
}}\nBackup file: {{ ILSStartup_def_xml_copy.backup_file }}"
dest: "{{ staged_config_dir }}/{{ inventory_hostname_short
}}/ILS_diff.txt"
when: staged_stat.stat.md5!=target_stat.stat.md5
Thanks
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