WIP: first implementation of functional tests

Signed-off-by: Sébastien Han <sebastien.han@enovance.com>

tests/README.md

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+Functional tests
+================
+
+These playbooks aim to individually validate each Ceph component.
+Some of them require packages to be installed.
+Ideally you will run these tests from a client machine or from the Ansible server.

tests/validate-ceph.yml

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+# This playbook tests a Ceph
+
+- hosts:
+  - osds
+
+  vars:
+    foo: bar
+
+  tasks:
+
+  - name: foo
+    command: bar
+    delegate_to: foobar

tests/validate-mds.yml

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+---
+# This playbook tests a Ceph Metadata server
+
+- hosts:
+  - mdds
+
+  vars:
+    foo: bar
+
+  tasks:
+
+  - name: foo
+    command: bar
+    delegate_to: foobar

tests/validate-mon.yml

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+---
+# This playbook tests a Ceph monitor
+
+- hosts:
+  - mons
+
+  vars:
+    foo: bar
+
+  tasks:
+
+  - name: foo
+    command: bar
+    delegate_to: foobar

tests/validate-rados.yml

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+---
+# This playbook tests a Ceph object storage daemon
+
+- hosts:
+  - 127.0.0.1
+  roles: ceph-common
+  sudo: True
+
+  vars:
+    foo: bar
+
+  tasks:
+
+  - name: Fetch ceph.conf and admin keyring
+    fetch: >
+      src=/etc/ceph/ceph.client.admin.keyring
+      dest=/etc/ceph/ceph.client.admin.keyring
+      fail_on_missing=yes
+
+  - name: Create working directory
+    command: mktemp
+    register: tmp_work_dir
+
+  - name: Create a file
+    command: dd if=/dev/zero of={{ tmp_work_dir.stdout }}/foobar count=1 bs=1M
+
+  - name: Create an object
+    command: rados -p rbd put foobar.object {{ tmp_work_dir.stdout }}/foobar
+    delegate_to: foobar
+
+  - name: Get an object
+    command: rados -p rbd get foobar.object {{ tmp_work_dir.stdout }}/foobar.file

tests/validate-rbd.yml

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+---
+# This playbook tests a Ceph object storage daemon
+
+- hosts:
+  - osds
+
+  vars:
+    foo: bar
+
+  tasks:
+
+  - name: Create a RBD image
+    command: rbd create -s 10240 foobar

tests/validate-rgw.yml

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+---
+# This playbook tests a Ceph monitor
+
+- hosts:
+  - rgws
+
+  vars:
+    foo: bar
+
+  tasks:
+
+  - name: foo
+    command: bar
+    delegate_to: foobar