From 42e5f483457a0cbea88b22039f0f79ab1ae74baa Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Sun, 20 Feb 2022 15:24:03 -0500
Subject: [PATCH] Persist backing `/data/` filesystem across container runs

---
 piker/data/_ahab.py | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/piker/data/_ahab.py b/piker/data/_ahab.py
index 9ec805a8..59bb4d55 100644
--- a/piker/data/_ahab.py
+++ b/piker/data/_ahab.py
@@ -186,6 +186,7 @@ async def open_marketstore(
     log = get_console_log('info', name=__name__)
 
     async with open_docker() as client:
+
         # create a mount from user's local piker config dir into container
         config_dir_mnt = docker.types.Mount(
             target='/etc',
@@ -193,6 +194,20 @@ async def open_marketstore(
             type='bind',
         )
 
+        # create a user config subdir where the marketstore
+        # backing filesystem database can be persisted.
+        persistent_data_dir = os.path.join(
+            config._config_dir, 'data',
+        )
+        if not os.path.isdir(persistent_data_dir):
+            os.mkdir(persistent_data_dir)
+
+        data_dir_mnt = docker.types.Mount(
+            target='/data',
+            source=persistent_data_dir,
+            type='bind',
+        )
+
         cntr: Container = client.containers.run(
             'alpacamarkets/marketstore:latest',
             # do we need this for cmds?
@@ -203,7 +218,7 @@ async def open_marketstore(
                 '5993/tcp': 5993,  # jsonrpc
                 '5995/tcp': 5995,  # grpc
             },
-            mounts=[config_dir_mnt],
+            mounts=[config_dir_mnt, data_dir_mnt],
             detach=True,
             stop_signal='SIGINT',
             init=True,