Fix cwl tests refs #15241

[arvados.git] / doc / _includes / _mount_types.liquid

diff --git a/doc/_includes/_mount_types.liquid b/doc/_includes/_mount_types.liquid
index 3a10349ba4afee22b415bdc1168e49a9f7f5ef50..edf8edfd4ab278ee6b134f3ba8dbe773487f3442 100644 (file)
--- a/doc/_includes/_mount_types.liquid
+++ b/doc/_includes/_mount_types.liquid
@@ -27,8 +27,7 @@ At container startup, the target path will have the same directory structure as
 |Git tree|@git_tree@|@"uuid"@ must be the UUID of an Arvados-hosted git repository.
 @"commit"@ must be a full 40-character commit hash.
 @"path"@, if provided, must be "/".
-At container startup, the target path will have the source tree indicated by the given commit. The @.git@ metadata directory _will not_ be available.
-If @"writable"@ is true, the target directory will be writable. Any changes will be discarded when the container exits.|<pre><code>{
+At container startup, the target path will have the source tree indicated by the given commit. The @.git@ metadata directory _will not_ be available.|<pre><code>{
  "kind":"git_tree",
  "uuid":"zzzzz-s0uqq-xxxxxxxxxxxxxxx",
  "commit":"f315c59f90934cccae6381e72bba59d27ba42099"
@@ -65,7 +64,7 @@ When a container's output_path is a tmp mount backed by local disk, this output
 
 1. Only mount points of kind @collection@ are supported.
 
-2. Mount points underneath output_path must not use @"writable":true@. If any of them are set as @writable@, the API will refuse to create/update the container request, and crunch-run will fail the container.
+2. Mount points underneath output_path which have @"writable":true@ are copied into output_path during container initialization and may be updated, renamed, or deleted by the running container.  The original collection is not modified.  On container completion, files remaining in the output are saved to the output collection.   The mount at output_path must be big enough to accommodate copies of the inner writable mounts.
 
 3. If any such mount points are configured as @exclude_from_output":true@, they will be excluded from the output.