forked from ungleich-public/cdist
132 lines
5 KiB
Text
132 lines
5 KiB
Text
- parameter/setting default from manifest
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==> BRANCH[feature_default_parameters],
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==> PERSON[Steven or Nico]
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==> PROPOSAL(1)
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- current bug
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- proposal 1: parameter/default/$name (for optional ones)
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- new way
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- catches --state absent|present
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- needs changes of types
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- also possible for explorer
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- support for it in core?
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- handling of ${o} $o "$o" ?
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- handling which variables?
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- introduction of "templating language"
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- aka macros
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- possible problems:
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- inconsistency
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- redoing shell functionality
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- raising expectations for more templating from users
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- possible benefit
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- no need for eval
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- once in core, not everytime in type
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- OTOH: one extra word.
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- a=$(cat $__object/parameter/name) vs. $(eval $(cat $__object/parameter/name))
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- only possible for static defaults
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- --name overrides name not possible vs. object_id
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- Is this the only case????
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- if yes: don't care.
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- possible solution:
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- echo '/$__object_id' > typename/parameter/default/name
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- eval $(cat $__object/parameter/name)
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- probably allows code injection
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- is possible anyway???
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- $(cat /etc/shadow)
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- other eval side effects???
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- none: go for it
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- some: have headache
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- many: don't do
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- proposal 2: 2 dbs (user input vs. stuff changable by type)
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- explicit 2nd db [parameter_user and parameter/]
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- not very clean (both agreed)
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- proposal 3: parameter are read-only
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- breaks current types (in core probably elsewhere)
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- can't enforce, but user is on his own => breaks, her problem
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+ clean seperation between core and type (nico)
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- parameter belongs to type not core (steven)
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- proposal 4: core ignores changes in parameter/* of object
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- implicit 2nd db [see automagic below]
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- steven+++
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- does not work with divergent emulator not being in core
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- because emulators primary db __is__ fs.
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1 manifest:
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__foo bar == emulator
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echo present > $__global/object/__foo/bar/parameter/state
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# fails
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__foo bar == emulator
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! automagic / filesystem
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! fsproperty:
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- kill, write explicitly to disk
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==> BRANCH[cleanup_fsproperty]
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==> PERSON[Steven]
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==> PROPOSAL(just cleanup)
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- implicit/automatic writes/read to fs
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- explicit interfaces are better then implicit
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- same problems as in cdist 1.x to 2.x move! (environment!)
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- format on disk should not change/dictate code flow
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- degrade python to shell (nico++! steven--)
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- user should not care about python, ruby, .net or ASM implementation (steven++ nico++)
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? proposal 1: diverge emulator / core
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- emulator verifies input
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- emulator writes to fs
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- core reads/syncs from/to fs before passing control to user
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? proposal 2: emulator is dumb and passes data to core
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- core creates objects
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- no fs involved
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- core reads/syncs from/to fs before passing control to user
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- passing:
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- full objects via pickle
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- parameters only
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- how???
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- unix socket?
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- not everywhere possible?
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- tcp / ip
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- not everywhere possible
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- chroot / local only
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- rfc 1149
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- not everywhere possible
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- missing avian carriers
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- 0mq
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- not everywhere possible
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- not installed
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- shm (ipcs and friends)
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- not everywhere possible
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- no /dev/shm, different libraries? cleanups needed...
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- what speaks against FS?
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- emulator_input/.../
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- nico: to fancy probably
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! boolean implementation
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==> BRANCH[feature_boolean_parameter]
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==> PERSON[Steven]
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- nico:
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- parameters/boolean: document
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- argparse changes (consider parameters/boolean)
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- create
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- can be implemented with changes in emulator
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- use store_true, del if false => never seen by core
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- INDEPENDENT INDEPENDT OF FS.PROPERTIES!!111111!
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- emulator:
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- how much integrated into core
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- also: using CdistObject????
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- dependency on filesystem: good (nico) | bad (steven)
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- singleton / support without object_id
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- not discussed
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- __apt_ppa:
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==> BRANCH[bugfix_do_not_change_state_in_manifest]
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==> PERSON[Nico]
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- logging divergent between emulator / core
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- no problem (nico)
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- may be helpful (steven)
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