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1

I'm trying to add an environment variable to my rsyslog template.

I tried using 'getenv()' function without any luck, I always get an empty string in return.

I'm attaching an example of my rsyslog config file, I'm using 'HOME' env variable as an example.

/etc/rsyslog.d/00-my_log.conf

set $.my_home=getenv("HOME");

template(name="json-template"
 type="list") 
 constant(value="")
 constant(value="","my_home":"") property(name="$.my_home")
 constant(value="","message":"") property(name="msg" format="json")
 constant(value=""n")


*.* action(type="omfile" dirCreateMode="0700" FileCreateMode="0644"
 template="json-template" File="/var/log/my_log")

/var/log/my_log

"my_home":"","message":"my log message"

rsyslogd: version 8.4.2

ubuntu logging log-files syslog rsyslog

share|improve this question

asked Apr 11 at 13:46

Hanoch GinerHanoch Giner

61

New contributor

Hanoch Giner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This works for me, but I have version 8.30.0. If you run rsyslogd -dn you will get lots of debug output. There might be an error message about getenv in there. For a normal input line I see in the debug: SET .my_home = function 'getenv' ... string 'HOME' END SET`
  
  – meuh
  Apr 12 at 18:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Sadly I can't easily update my rsyslog version, it will require me to compile rsyslog and its dependencies to my specific Debian armv7l distribution. With rsyslogd -dn, I can see the line you mentioned, it actually defines to variable 3 times but in the end it's still an empty string. Anyway, I'll just find a workaround as this issue doesn't worth getting into a compilation session. Thanks for the help!
  
  – Hanoch Giner
  2 days ago
  
  

  
  
  
  

add a comment | 

1

I'm trying to add an environment variable to my rsyslog template.

I tried using 'getenv()' function without any luck, I always get an empty string in return.

I'm attaching an example of my rsyslog config file, I'm using 'HOME' env variable as an example.

/etc/rsyslog.d/00-my_log.conf

set $.my_home=getenv("HOME");

template(name="json-template"
 type="list") 
 constant(value="")
 constant(value="","my_home":"") property(name="$.my_home")
 constant(value="","message":"") property(name="msg" format="json")
 constant(value=""n")


*.* action(type="omfile" dirCreateMode="0700" FileCreateMode="0644"
 template="json-template" File="/var/log/my_log")

/var/log/my_log

"my_home":"","message":"my log message"

rsyslogd: version 8.4.2

ubuntu logging log-files syslog rsyslog

share|improve this question

asked Apr 11 at 13:46

Hanoch GinerHanoch Giner

61

New contributor

Hanoch Giner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This works for me, but I have version 8.30.0. If you run rsyslogd -dn you will get lots of debug output. There might be an error message about getenv in there. For a normal input line I see in the debug: SET .my_home = function 'getenv' ... string 'HOME' END SET`
  
  – meuh
  Apr 12 at 18:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Sadly I can't easily update my rsyslog version, it will require me to compile rsyslog and its dependencies to my specific Debian armv7l distribution. With rsyslogd -dn, I can see the line you mentioned, it actually defines to variable 3 times but in the end it's still an empty string. Anyway, I'll just find a workaround as this issue doesn't worth getting into a compilation session. Thanks for the help!
  
  – Hanoch Giner
  2 days ago
  
  

  
  
  
  

add a comment | 

I'm trying to add an environment variable to my rsyslog template.

I tried using 'getenv()' function without any luck, I always get an empty string in return.

I'm attaching an example of my rsyslog config file, I'm using 'HOME' env variable as an example.

/etc/rsyslog.d/00-my_log.conf

set $.my_home=getenv("HOME");

template(name="json-template"
 type="list") 
 constant(value="")
 constant(value="","my_home":"") property(name="$.my_home")
 constant(value="","message":"") property(name="msg" format="json")
 constant(value=""n")


*.* action(type="omfile" dirCreateMode="0700" FileCreateMode="0644"
 template="json-template" File="/var/log/my_log")

/var/log/my_log

"my_home":"","message":"my log message"

rsyslogd: version 8.4.2

ubuntu logging log-files syslog rsyslog

share|improve this question

asked Apr 11 at 13:46

Hanoch GinerHanoch Giner

61

New contributor

Hanoch Giner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

set $.my_home=getenv("HOME");

template(name="json-template"
 type="list") 
 constant(value="")
 constant(value="","my_home":"") property(name="$.my_home")
 constant(value="","message":"") property(name="msg" format="json")
 constant(value=""n")


*.* action(type="omfile" dirCreateMode="0700" FileCreateMode="0644"
 template="json-template" File="/var/log/my_log")

"my_home":"","message":"my log message"

share|improve this question

asked Apr 11 at 13:46

Hanoch GinerHanoch Giner

61

New contributor

Hanoch Giner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked Apr 11 at 13:46

Hanoch GinerHanoch Giner

61

New contributor

Hanoch Giner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked Apr 11 at 13:46

Hanoch GinerHanoch Giner

61

New contributor

Hanoch Giner is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked Apr 11 at 13:46

Hanoch GinerHanoch Giner

61