We are attempting to filter a set of AWS subnets for creating an ASG. In a VPC, we have some subnets tagged as "Network=private". When creating an ASG for worker instances, we need to set the ASG's AZs and subnets to the AZs and subnets of all private subnets in the VPC. So, being able to with_items over the subnets and filtering on tags "Network=private" is useful.
For AWS work, filtering AWS entities (hosts, IAM roles, subnets, VPC', etc...) on one or more tags seems like it would be common. --- Ted On Tuesday, November 18, 2014 3:23:11 AM UTC-5, Torsten Reinhard wrote: > > Hi, > > it´s not about "hosts" filtering - in my case it´s always "hosts: cae". > > I have some files in > group_vars/cae-1.yml > group_vars/cae-2.yml > .. > group_vars/cae-xx.yml > > > according to the group(s) defined in my /inventory/hosts file. > > Inside these group_vars there´s a list of instances, running on that > machine: > > --- > cae_instance: > - > index: _1_a > port: 8700 > ... > - > index: _1_k > port: 12700 > > > > The question is now: how to filter that list ? > > I know I can iterate the list using the "with_items" expression - but I > want to "skip" or "filter" some items, lets say by using RegEx on one (or > more) attributes of the list items. > > Any solution for that ? > > Regards, Torsten > > Am Montag, 17. November 2014 22:13:54 UTC+1 schrieb Michael DeHaan: >> >> If you are attempting to talk to only certain instances, usage of the >> host group specifier "hosts:" is the way to do it. >> >> To talk to all instances ending in that pattern >> >> - hosts: *_k >> >> The docs also show how to combine patterns and negate them. >> >> (The group_by module can also be used to create groups of arbitrary >> criteria based on facts, but is not needed here) >> >> >> >> >> >> On Thu, Nov 13, 2014 at 6:12 AM, Torsten Reinhard < >> [email protected]> wrote: >> >>> Hi all, >>> >>> like probably most of you, we have multiple servers with multiple >>> application instances (Tomcat, Apache, ..) on it, for example >>> structured like this: >>> >>> [cae:children] >>> cae-1 >>> cae-2 >>> >>> [cae-1] >>> pbdelsweb001.mydomain.com >>> [cae-2] >>> pbdelsweb002.mydomain.com >>> >>> >>> For each group we have a *.yml file at group_vars directoy in the >>> inventory: >>> >>> cae-1.yml: >>> --- >>> cae_instance: >>> - >>> index: _1_a >>> port: 8700 >>> - >>> index: _1_b >>> port: 9700 >>> - >>> index: _1_c >>> port: 10700 >>> - >>> index: _1_k >>> port: 12700 >>> >>> All these instances are setup by a simple playbook: >>> >>> - hosts: cae >>> user: myuser >>> >>> vars_files: >>> - vars/stage-{{stage}}.yml >>> >>> roles: >>> - { role: cae-tomcat, params: "{{ cae_instance }}" } >>> >>> This is all fine - but now I have to fullfill the requirement to be able >>> to address only the "_k" instances - or only the "_a" instances - that >>> meens one or more instances out of the complete list. >>> >>> Is there an option to "filter" the list of instances ? Something like >>> >>> with_items >>> - filter: (".*_k" ) >>> >>> Do I have to write my own Iterator(s) for this ? >>> >>> Thanx for any hints, Torsten >>> >>> >>> >>> >>> -- >>> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/ansible-project/fbbdc812-3908-43a8-921b-f7705a6314cc%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/ansible-project/fbbdc812-3908-43a8-921b-f7705a6314cc%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- 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 [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/2838d5ad-7fb3-43b3-be51-18fd262832f8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
