Difference between revisions of "GLExec Environment Wrap and Unwrap scripts"
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= gLExec wrapper scripts: glexec_wrapenv.pl and glexec_unwrapenv.pl) = | = gLExec wrapper scripts: glexec_wrapenv.pl and glexec_unwrapenv.pl) = | ||
| − | Helper | + | Helper scripts to restore the environment variables previously wrapped into the environment variable GLEXEC_ENV using the glexec_wrapenv.pl script. |
| − | Intended usage | + | = Intended usage = |
export GLEXEC_ENV=`glexec_wrapenv.pl` | export GLEXEC_ENV=`glexec_wrapenv.pl` | ||
/opt/glite/sbin/glexec glexec_unwrapenv.pl -- <YOUR-COMMAND> | /opt/glite/sbin/glexec glexec_unwrapenv.pl -- <YOUR-COMMAND> | ||
| + | == Important details == | ||
By default the following environment variables are NOT unwrapped: | By default the following environment variables are NOT unwrapped: | ||
* HOME | * HOME | ||
| Line 27: | Line 28: | ||
--exclude=A,B,... | --exclude=A,B,... | ||
| + | == Examples == | ||
Example 1: | Example 1: | ||
export GLEXEC_ENV=`glexec_wrapenv.pl --exclude=MYVAR` | export GLEXEC_ENV=`glexec_wrapenv.pl --exclude=MYVAR` | ||
Revision as of 09:14, 10 June 2009
GLExec Wrap and Unwrap environment variables] describes how you can wrap environment variables in such a way that they don't get wipe and unwrap them (safely) in the target account (pilot job payload) process.
Where to find packages and sources
We provide a new packages named glexec-wrapper-scripts (at the moment primarily) through the Etics system.
The sources can be found in our SVN repository.
gLExec wrapper scripts: glexec_wrapenv.pl and glexec_unwrapenv.pl)
Helper scripts to restore the environment variables previously wrapped into the environment variable GLEXEC_ENV using the glexec_wrapenv.pl script.
Intended usage
export GLEXEC_ENV=`glexec_wrapenv.pl` /opt/glite/sbin/glexec glexec_unwrapenv.pl -- <YOUR-COMMAND>
Important details
By default the following environment variables are NOT unwrapped:
- HOME
- LOGNAME
- USER
- X509_USER_PROXY
- _ (yes that's '_' !)
A user can add more env vars to be excluded using either
--exclude=A --exclude=B
or
--exclude=A,B,...
Examples
Example 1:
export GLEXEC_ENV=`glexec_wrapenv.pl --exclude=MYVAR` /opt/glite/sbin/glexec glexec_unwrapenv.pl -- <YOUR-COMMAND>
Example 2:
export GLEXEC_ENV=`glexec_wrapenv.pl` /opt/glite/sbin/glexec glexec_unwrapenv.pl --exclude=MYVAR -- <YOUR-COMMAND>
Example 3:
export GLEXEC_ENV=`glexec_wrapenv.pl --exclude=MYVAR` /opt/glite/sbin/glexec glexec_unwrapenv.pl -- <YOUR-COMMAND>
