separate solr tasks so it can be deployed to its own server

[Natkeeran]

search_api_solr 8.3 is not quite working, thus this PR is stuck: #123. Want to get the ansible changes to support indepndent solr server deployement in, thus this PR. Will circle back to the search_api_solr 8.3 issue later on.

GitHub Issue: (link)
Islandora/documentation#1197

What does this Pull Request do?

• Supports installing solr on its own server.

How should this be tested?

• Get the PR
• vagrant up
• Create content
• Verify that it gets indexed and returned

In addition, testing the following is helpful.

• Get the PR
• Modify or create the following playbook:

---

- include: bootstrap.yml
  tags:
    - bootstrap
- include: solr.yml

• deploy and check that solr has been correctly installed

Interested parties

@Islandora-CLAW/committers

[dannylamb]

vagrant up

[dannylamb]

@Natkeeran

I'm getting this:

TASK [webserver-app : Set default solr server host from hostvars] **************
Thursday 08 August 2019  20:19:31 -0300 (0:00:02.597)       0:41:44.839 ******* 
fatal: [default]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'ansible.vars.hostvars.HostVarsVars object' has no attribute 'ansible_ssh_host'\n\nThe error appears to be in '/home/daniel/Code/Environments/claw-playbook/roles/internal/webserver-app/tasks/solr.yml': line 7, 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- name: Set default solr server host from hostvars\n  ^ here\n"}

I checked my vagrantfile and ansible_ssh_host is not defined. Is that something we can trigger to get ansible to autocreate it or do we need to add it manually?

[Natkeeran]

@dannylamb

I assume you are merging with latest and testing.

I've updated the pr, pls try again.

[Natkeeran]

@dannylamb
Pinging you to see if you can take a another look at this. It should be reasonably straightforward.

[dannylamb]

vagrant up

[dannylamb]

I can verify this works on an all-in-one install. Searching behaves as expected. I'll spin up just a solr box for the final test. But in general, this is looking good @Natkeeran!

[dannylamb]

I've commented out all plays except solr and vagrant uping 🚀

[dannylamb]

Yep! I've got a stand-alone solr box without issue.

[dannylamb]

@Natkeeran Thx for the work... and your patience ^_^