Apt sources configuration improvements

- keyid-only (no source statement)
- key only (no source statement)
- custom source.list template
- support long gpg key fingerprints with spaces
- fix issue with key's that were already in the local gpg keyring
- allowing a new format to specify apt_sources in a dictionary instead of a
  list to allow merging of configurations

LP: #1574113

1 files changed, 5 insertions, 0 deletions

diff --git a/cloudinit/templater.py b/cloudinit/templater.py
index a9231482..8a6ad417 100644
--- a/cloudinit/templater.py
+++ b/cloudinit/templater.py
@@ -142,6 +142,11 @@ def render_to_file(fn, outfn, params, mode=0o644):
     util.write_file(outfn, contents, mode=mode)
 
 
+def render_string_to_file(content, outfn, params, mode=0o644):
+    contents = render_string(content, params)
+    util.write_file(outfn, contents, mode=mode)
+
+
 def render_string(content, params):
     if not params:
         params = {}