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Re: Origin metrics ansible install failure

Hey Michael,

Here's some background on the error you're hitting in an openshift-ansible pull request I've just opened: https://github.com/openshift/openshift-ansible/pull/7331.

I'm updating the Origin docs to recommend using the release branch of openshift-ansible that corresponds to the desired Origin version. The docs should only suggest using the master branch when intending to run the version of Origin in development. Docs update pull request is here https://github.com/openshift/openshift-docs/pull/7963.

On Wed, Feb 28, 2018 at 8:22 AM, Feld, Michael (IMS) <FeldM imsweb com> wrote:

Let me begin by saying there seems to be confusion regarding which branch in the openshift-ansible github project you should be using for deploying components of OpenShift Origin. The official documentation for installing the cluster says to use the master branch, however I’ve found that the master branch never works and you must use the specific release branch for it to be successful.


With that said, it looks like the ansible scripts to deploy metrics are no longer in the release branch (I’m trying release-3.6 at the moment), and only in the master branch. When I try running the playbook from the master branch on a brand new 3.6.0 cluster, I get the following output from ansible:


TASK [openshift_master : Ensure that Heapster has nodes to run on] ******************************************************************************************************

fatal: [openshift-master]: FAILED! => {"failed": true, "msg": "Unexpected templating type error occurred on ({{  __schedulable_nodes_matching_selector['results']['results'][0]['items'] | default([]) | length != 0 }}): object of type 'builtin_function_or_method' has no len()"}

        to retry, use: --limit @/openshift-ansible/playbooks/openshift-metrics/config.retry


Any ideas?

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