Blueprint changed by Antonio Rosales:
Whiteboard changed:
- --- User Stories ---
-
- --- Risks ---
-
- --- Test Plans ---
-
- --- Release Note ---
-
- --- Blog Post ---
-
- (Needs spec and WI definition) -[a.rosales; 12-DEC-2012]
+ [USER STORIES]
+ [ASSUMPTIONS]
+ [RISKS]
+ [IN SCOPE]
+ [OUT OF SCOPE]
+ [USER ACCEPTANCE]
+ [RELEASE NOTE/BLOG]
--- UDS Discussion ---
We've learned a lot since the creation of charm helper. Debian packagers
took 7 iterations before boiling all of debhelper's goodness into a
declarative system. We can learn from them, and get there in our second
iteration.
Discussion:
Charm-helper is not easily discoverable, poorly documented, and not as
awesome as it could be.
dannf likes to write makefiles
sources list
config settings with meaning
want common things to go in a declarative charm
get rid of copied lib files/folder
Maintain charm-helper seperately from juju, calling it at the top of the hook
vs included in juju trunk
What happens during upgrade-charm or if a pakcage gets removed?
Juju can't help with leader election across units of a service, but
charm-helper could)
Work:
- describe how to handle lifecycle changes for packages in
charm-helper/packages (also thinkof: upgrade-charm)
- install packages
- debconf preseeding too
- templating and/or building config files with dotd/concat partials
(erb_template _and_ cheetah_template helpers)?
- remote_files
- deploy from {distro,ppa,upstream?} ?
- Manage config files (dynamic, static, etc)
- Sanitize relation settings (potential risk of SQL Ejection, highjacking,
terror)
- Plugin based for easy extension of charm-helper
- leader election (perhaps somewhere other than charmhelper)
- private files (SSL certs) ... no clue...
- Collaborate on files that no charm "owns"
--
Charm Helper 2 - Declarative Charming
https://blueprints.launchpad.net/ubuntu/+spec/servercloud-s-juju-charmhelper2
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