Add skeleton devstack task

Currently only installs devstack on one node, and creates some pools on
the ceph cluster.

Signed-off-by: Zack Cerza <zack.cerza@inktank.com>

diff --git a/teuthology/task/devstack.py b/teuthology/task/devstack.py
new file mode 100644 (file)
index 0000000..009c75d
--- /dev/null
+++ b/teuthology/task/devstack.py
@@ -0,0 +1,69 @@
+#!/usr/bin/env python
+import contextlib
+import logging
+
+from ..orchestra import run
+from teuthology import misc
+
+"""
+https://github.com/openstack-dev/devstack/blob/master/README.md
+http://ceph.com/docs/master/rbd/rbd-openstack/
+"""
+log = logging.getLogger(__name__)
+
+DEVSTACK_GIT_REPO = 'https://github.com/openstack-dev/devstack.git'
+is_devstack_node = lambda role: role.startswith('devstack')
+is_osd_node = lambda role: role.startswith('osd')
+
+
+@contextlib.contextmanager
+def task(ctx, config):
+    """
+    Install OpenStack DevStack and configure it to use a Ceph cluster for
+    Glance and Cinder.
+
+    Requires one node with a role 'devstack'
+    """
+    if config is None:
+        config = {}
+    if not isinstance(config, dict):
+        raise TypeError("config must be a dict")
+    pool_size = config.get('pool_size', 128)
+
+    # SETUP
+    devstack_node = ctx.cluster.only(is_devstack_node).remotes[0]
+    an_osd_node = ctx.cluster.only(is_osd_node).remotes[0]
+    install_devstack(devstack_node)
+    try:
+        # OTHER STUFF
+
+        # Create pools on Ceph cluster
+        for pool_name in ['volumes', 'images', 'backups']:
+            args = ['ceph', 'osd', 'pool', 'create', pool_name, pool_size]
+            an_osd_node.run(args=args)
+
+        # Copy ceph.conf to OpenStack node
+        misc.copy_file(an_osd_node, '/etc/ceph/ceph.conf', devstack_node)
+        # This is where we would install python-ceph and ceph-common but it
+        # appears the ceph task will do that for us.
+        # ceph auth get-or-create client.cinder mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=volumes, allow rx pool=images'
+        # ceph auth get-or-create client.glance mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=images'
+        # ceph auth get-or-create client.cinder-backup mon 'allow r' osd 'allow class-read object_prefix rbd_children, allow rwx pool=backups'
+
+        yield
+    #except Exception as e:
+        # FAIL
+        #pass
+    finally:
+        # CLEANUP
+        pass
+
+
+def install_devstack(devstack_node):
+    log.info("Cloning devstack repo...")
+    args = ['git', 'clone', DEVSTACK_GIT_REPO]
+    devstack_node.run(args=args)
+
+    log.info("Installing devstack...")
+    args = ['cd', 'devstack', run.Raw('&&'), './stack.sh']
+    devstack_node.run(args=args)