Hi christoph, Was very excited to see your solution to this problem. I've been struggling to find a way to work around ansible replacing dictionaries.
Are you still using this approach? How has it been working for you? Have you made any changes? On Wednesday, June 6, 2018 at 7:00:46 AM UTC-7, christoph...@netresearch.de wrote: > > Hi Kai, > > >> Ansible has an option hash_behavior(default is replace) that you can set >> to merge, it will then merge hashes/dictonaries instead of replacing >> them. >> > > Unfortunately, DEFAULT_HASH_BEHAVIOUR (Ansible Docs) > <http://docs.ansible.com/ansible/latest/reference_appendices/config.html?highlight=hash_behaviour#default-hash-behaviour> > > states that it is not a recommended practice. But luckely, I found a way > that seems to be pretty straight-forward: > > role/default/main.yml > myapp_defaults: > component1: > feature1: defaultA > feature2: defaultB > component2: > feature1: defaultC > feature2: defaultD > > role/vars/main.yml > myapp_vars: | > {%- if myapp is defined and myapp is iterable -%} > {{ myapp_defaults | combine (myapp, recursive=True) }} > {%- else -%} > {{ myapp_defaults }} > {%- endif -%} > > The usage in the role/tasks/xyz.yml then is e.g. > - name: Some task > XXX: > YYY: "{{ myapp_vars.component2.feature1 }}" > ... > ... > > Applying the role e.g. with play vars > # My Playbook > > - name: setup MyApp > vars: > myapp: > component2: > feature1: "foo" > feature2: "bar" > tasks: > - include_role: > name: myapp > > Variable precedence is important, e.g. the following wouldn't work: > # My Playbook > > - name: setup MyApp > tasks: > - include_role: > name: myapp > vars: > myapp: > component2: ... > ... > > since role/vars/main.yml is already read in when include_vars are applied. > > > > > > -- You received this message because you are subscribed to the Google Groups "Ansible Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to ansible-project+unsubscr...@googlegroups.com. To post to this group, send email to ansible-project@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/aec5cfb4-9d48-420a-b8df-d44009af3815%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
