Migrate data directory from /home to /var

In General, /var/lib is used to store any data for server application
while /home is used by actual users. To follow that standard, all data
files for Storlet are now stored in /var/lib/storlets instead of
/home/docker_device.

Change-Id: Idef1227c0469d216c2a4bf40413b8562ad4a6a9e

devstack/plugin.sh

@@ -47,7 +47,7 @@ SWIFT_MEMBER_USER_PWD=member
 # Storlets install tunables
 STORLETS_DEFAULT_USER_DOMAIN_ID=${STORLETS_DEFAULT_USER_DOMAIN_ID:-default}
 STORLETS_DEFAULT_PROJECT_DOMAIN_ID=${STORLETS_DEFAULT_PROJECT_DOMAIN_ID:-default}
-STORLETS_DOCKER_DEVICE=${STORLETS_DOCKER_DEVICE:-/home/docker_device}
+STORLETS_DOCKER_DEVICE=${STORLETS_DOCKER_DEVICE:-/var/lib/storlets}
 STORLETS_DOCKER_BASE_IMG=${STORLETS_DOCKER_BASE_IMG:-ubuntu:22.04}
 STORLETS_DOCKER_BASE_IMG_NAME=${STORLETS_DOCKER_BASE_IMG_NAME:-ubuntu_22.04}
 STORLETS_DOCKER_SWIFT_GROUP_ID=${STORLETS_DOCKER_SWIFT_GROUP_ID:-1003}

doc/source/engine_dev_installation.rst

@@ -262,7 +262,7 @@ Create the run time directory
 
 ::
 
-    export STORLETS_HOME=/home/docker_device
+    export STORLETS_HOME=/var/lib/storlets
     sudo mkdir -p $STORLETS_HOME
     sudo chmod 777 $STORLETS_HOME
 
@@ -328,12 +328,12 @@ with the following content:
 
     [DEFAULT]
     storlet_logcontainer = storletlog
-    host_root = /home/docker_device
-    cache_dir = /home/docker_device/cache/scopes
-    log_dir = /home/docker_device/logs/scopes
-    script_dir = /home/docker_device/scripts
-    storlets_dir = /home/docker_device/storlets/scopes
-    pipes_dir = /home/docker_device/pipes/scopes
+    host_root = /var/lib/storlets
+    cache_dir = /var/lib/storlets/cache/scopes
+    log_dir = /var/lib/storlets/logs/scopes
+    script_dir = /var/lib/storlets/scripts
+    storlets_dir = /var/lib/storlets/storlets/scopes
+    pipes_dir = /var/lib/storlets/pipes/scopes
     storlet_timeout = 40
     docker_repo =
     restart_linux_container_timeout = 3

doc/source/installation.rst

@@ -75,7 +75,7 @@ storlets with EC and encryption. Valid values are true / false
 ::
 
   # A cross nodes directory for Storlets internal usage. Must exist with the same name in all proxy and storage nodes.
-  docker_device: /home/docker_device
+  docker_device: /var/lib/storlets
 
   # A pointer to this repo
   storlet_source_dir: <need to point to the repo root>

etc/storlet-docker-gateway.conf-sample

@@ -1,10 +1,10 @@
 [DEFAULT]
-host_root = /home/docker_device
-cache_dir = /home/docker_device/cache/scopes
-log_dir = /home/docker_device/logs/scopes
-script_dir = /home/docker_device/scripts
-storlets_dir = /home/docker_device/storlets/scopes
-pipes_dir = /home/docker_device/pipes/scopes
+host_root = /var/lib/storlets
+cache_dir = /var/lib/storlets/cache/scopes
+log_dir = /var/lib/storlets/logs/scopes
+script_dir = /var/lib/storlets/scripts
+storlets_dir = /var/lib/storlets/storlets/scopes
+pipes_dir = /var/lib/storlets/pipes/scopes
 docker_repo = localhost:5001
 restart_linux_container_timeout = 10
 storlet_timeout = 40

storlets/gateway/gateways/docker/runtime.py

@@ -115,7 +115,7 @@ class RunTimePaths(object):
         self.sandbox_pipe_dir = '/mnt/channels'
 
         self.sandbox_storlet_base_dir = '/home/swift'
-        self.host_root_dir = conf.get('host_root', '/home/docker_device')
+        self.host_root_dir = conf.get('host_root', '/var/lib/storlets')
         self.host_pipe_root_dir = \
             conf.get('pipes_dir',
                      os.path.join(self.host_root_dir, 'pipes', 'scopes'))

tests/unit/gateway/gateways/docker/test_runtime.py

@@ -88,7 +88,7 @@ class TestRuntimePaths(unittest.TestCase):
 
     def _initialize(self):
         # TODO(takashi): take these values from config file
-        base_dir = '/home/docker_device'
+        base_dir = '/var/lib/storlets'
         self.script_dir = os.path.join(base_dir, 'scripts')
         self.pipes_dir = os.path.join(base_dir, 'pipes', 'scopes')
         self.storlets_dir = os.path.join(base_dir, 'storlets', 'scopes')
@@ -200,16 +200,16 @@ class TestRuntimePaths(unittest.TestCase):
         storlet_id = 'Storlet-1.0.jar'
 
         # For pipe
-        self.assertEqual('/home/docker_device/pipes/scopes/account',
+        self.assertEqual('/var/lib/storlets/pipes/scopes/account',
                          runtime_paths.host_pipe_dir)
 
         # 1. host_factory_pipe_path <pipes_dir>/<scope>/factory_pipe
         self.assertEqual(
-            '/home/docker_device/pipes/scopes/account/factory_pipe',
+            '/var/lib/storlets/pipes/scopes/account/factory_pipe',
             runtime_paths.host_factory_pipe)
         # 2. host_storlet_pipe_path <pipes_dir>/<scope>/<storlet_id>
         self.assertEqual(
-            '/home/docker_device/pipes/scopes/account/Storlet-1.0.jar',
+            '/var/lib/storlets/pipes/scopes/account/Storlet-1.0.jar',
             runtime_paths.get_host_storlet_pipe(storlet_id))
         # 3. Yes, right now, we don't have the path for #3 in Python
         # 4. sandbox_storlet_pipe_path | /mnt/channels/<storlet_id>
@@ -217,10 +217,10 @@ class TestRuntimePaths(unittest.TestCase):
                          runtime_paths.get_sbox_storlet_pipe(storlet_id))
 
         # This looks like for jar load?
-        self.assertEqual('/home/docker_device/storlets/scopes/account',
+        self.assertEqual('/var/lib/storlets/storlets/scopes/account',
                          runtime_paths.host_storlet_base_dir)
         self.assertEqual(
-            '/home/docker_device/storlets/scopes/account/Storlet-1.0.jar',
+            '/var/lib/storlets/storlets/scopes/account/Storlet-1.0.jar',
             runtime_paths.get_host_storlet_dir(storlet_id))
         # And this one is a mount poit in sand box?
         self.assertEqual('/home/swift/Storlet-1.0.jar',