mega cleaunp discussion commit :-)

Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>
This commit is contained in:
Nico Schottelius 2011-02-03 13:24:56 +01:00
parent d171ad5e64
commit 4b5d7dda25
40 changed files with 84 additions and 67 deletions

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@ -9,13 +9,13 @@ Do not believe anything written in cdist, besides what's written in this file
-- Nico, 20101201
What you can do so far:
What you can do so far: (executed from top level directory)
# prepare use:
export PATH="$PATH:$(pwd -P)/bin"
# Test first level manifest execution
__cdist_config=$(pwd -P)/conf __cdist_target_host=ikq02.ethz.ch cdist-manifest-init
__cdist_config=$(pwd -P)/conf __cdist_target_host=ikq02.ethz.ch cdist-manifest-init
# See what it generated
find conf/cache

10
TODO
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@ -6,6 +6,7 @@
- cdist-push-pull
- cdist-quickstart
- cdist-types [IMPORTANT]
- cdist.text [IMPORTANT]
- add terminology
- define steps within configuration apply
- detect impossible/unsafe things:
@ -14,12 +15,11 @@
- and report location of occurence
- parse afterwards?
- multi master setups
- how to define templates
- variable substitution from shell may be problematic
- templating
- how to define templates
- variable substitution from shell may be problematic
- SHELL SCRIPTS! (executables? do not support?)
- stdout
- cleanup / integrate doc/man/cdist.text
- stdout == output of template == what will be used
- cdist-explore
- add more stuff to explore
- write manpage

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@ -1,41 +0,0 @@
#!/bin/sh
#
# 2010 Nico Schottelius (nico-cdist at schottelius.org)
#
# This file is part of cdist.
#
# cdist is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# cdist is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with cdist. If not, see <http://www.gnu.org/licenses/>.
#
#
# Apply configuration to local host
#
. cdist-config
whereiam="$(cdist_explore_hostname)"
conf="${CDIST_HOSTS}/${whereiam}"
if [ ! -d "${conf}" ]; then
echo "Sorry, ${whereiam} has no configuration"
exit 1
fi
# Run the manifest, but abort on first error
set -e
# change to config dir, to be able to use relative filenames
cd "${conf}"
# And apply the stuff
. "${conf}/manifest"

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@ -1,2 +1,4 @@
setenv PATH ${PATH}:${HOME}/cdist/bin
setenv CDIST_CONFIG ${HOME}/cdist/conf
export PATH=$PATH:$HOME/cdist/bin
export CDIST_CONFIG=$HOME/cdist/conf

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@ -8,7 +8,7 @@ conf/manifests/init
will be available for tracking in
cdist core functions
core/manifests/* (all other)
conf/manifests/* (all other)
- same function as above
- but won't be called by cdist
- method to seperate configuration parts
@ -26,9 +26,8 @@ conf/types/<name>/
but more like reusable defines
- or may implement some functionality on their own
lib/types/<name>/
- same as above, but provided by the cdist distribution
- if name exists in both, conf/ has priority
conf/explorers/<name>
- explorers to be run on the target hosts
Differences manifests vs. types

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@ -0,0 +1,22 @@
1) safer and fast version
cat blob | ssh host > tmp;
for var in ...
var=grep ^var= tmp
2) slow & secure
for var in ...
eval var=$(cat single_blob | ssh host"
3) easy & insecure
cat blob | ssh host > tmp; . tmp
4) - rsync here/explorers target/explorers
- ssh target_host for explorer in target/explorers/; do
target/explorers/$explorer > target/cache/explorers/$explorer
done
- rsync target/cache/explorers here/cache/explorers....
- MINUS RSYNC!!!!!!!!!??????????
--------------------------------------------------------------------------------
TO_MAN: EXPLORER VALUES ARE UNTRUSTED (think of webclients and webapps)

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@ -0,0 +1,50 @@
Steven:
- cdist-deploy-to = main script
- all user usable variables are defined using export __var=...
- cdist-explorer return one line of output (or empty)
- cdist-manifest-init: generates what the user defined to be configured on target host
- HACKERS_README == starting point (until 1.0)
- [12:49] kr:cdist% __cdist_config=$(pwd -P)/conf __cdist_target_host=ikq02.ethz.ch cdist-manifest-init
- cdist_tree_wrapper == non-user-binary => libexec
- conf/explorer collection of explorer
- config-layout: current status of configuration
- needs to go into manpage
- TODO: contains most up-to-date todo stuff, mid-term
- ROADMAP: next steps
- Documentation must be bit better than excellent at first release
- test/: ignore (braindump and pre-braindump)
- conf/
cache: generated
explorer: ok => contains explores
lib: deprecated (does not exist)
manifests: entry point for config2host
types: cdist-types(7)
- alternative names for explorer:
- probe
- fact
- ...
- => STEVEN TO DECIDE
- explorer / execution:
- see explorer-implementation-ideas.TO_FINISH_AND_DELETE
Todo:
- cdist-preprocess:
- fix call to cdist-build-explorer and transfer explorer to target host
- cdist-manifest-init/ cdist_tree_wrapper:
- fails on second run => use different cache! (old cache exists until new is valid!)
- .source in cdist_tree_wrapper records wrong source!
- cdist-config:
- use export to mark user available variables!
- doc/man/* => defined in TODO
Future:
- ids containing slashes for easier use in types?
- a) __file abc --source /path/from/abc --destination /path/to/abc
- b) id=abc
__file $id --source /path/from/$id --destination /path/to/$id
- c) __file abc --sourcedir /path/from/ --destination_dir /path/to/
- type file defines that id is implicitly used when --...dir variants used
- d) __file /path/to/abc --source ? --destination ?
- reusing id with slashes would be nice

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@ -1,12 +0,0 @@
1) safer and fast version
cat blob | ssh host > tmp;
for var in ...
var=grep ^var= tmp
2) slow & secure
for var in ...
eval var=$(cat single_blob | ssh host"
3) easy & insecure
cat blob | ssh host > tmp; . tmp

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@ -1,2 +0,0 @@
export PATH=$PATH:$HOME/cdist/bin
export CDIST_CONFIG=$HOME/cdist/conf

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@ -1 +0,0 @@
$0 evaluated in a sourced script returns name of the caller.