trust existing datasource in modules or single

This fixes a bug where modules mode was not passing a 'existing'
flag to fetch.  fetch had existing default to 'check'.
The DataSourceNoCloud when fed with data from a disk will return
False to check() as it is not a guarantee'd hit.

That caused fetch to go looking for a new datasource.

That would have actually worked, but modules and single create
the Init with deps=[].  So it went looking for Datasources
that matched those deps, and only found DataSourceNone.

I'm going to keep having modules and single specify deps=[]
as that will prevent them from going to look for a DS and
further making things worse.

1 files changed, 2 insertions, 2 deletions

diff --git a/bin/cloud-init b/bin/cloud-init
index 8875d2f6..341359e3 100755
--- a/bin/cloud-init
+++ b/bin/cloud-init
@@ -329,7 +329,7 @@ def main_modules(action_name, args):
     init.read_cfg(extract_fns(args))
     # Stage 2
     try:
-        init.fetch()
+        init.fetch(existing="trust")
     except sources.DataSourceNotFoundException:
         # There was no datasource found, theres nothing to do
         msg = ('Can not apply stage %s, no datasource found! Likely bad '
@@ -383,7 +383,7 @@ def main_single(name, args):
     init.read_cfg(extract_fns(args))
     # Stage 2
     try:
-        init.fetch()
+        init.fetch(existing="trust")
     except sources.DataSourceNotFoundException:
         # There was no datasource found,
         # that might be bad (or ok) depending on