systemd: how to redirect stdout to logfile
I have a systemd service:
[Unit]
Description=My application
[Service]
ExecStart=/bin/java myapp.jar
Type=simple
User=photo
There is an option: StandardOutput= but I don't understand how to use it to write to a file.
https://www.freedesktop.org/software/systemd/man/systemd.exec.html
I was expecting to put a filepath somehere but the documentation talks about sockets and file descriptors. seems it needs more configuration than just that keyword.
Where to put the filepath ?
I can't find any examples of that use
Thanks
systemd logs services stdout
asked Dec 5 '17 at 13:11
exeralexeral
16114
bumped to the homepage by Community♦ 2 days ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
I have a systemd service:
[Unit]
Description=My application
[Service]
ExecStart=/bin/java myapp.jar
Type=simple
User=photo
There is an option: StandardOutput= but I don't understand how to use it to write to a file.
https://www.freedesktop.org/software/systemd/man/systemd.exec.html
I was expecting to put a filepath somehere but the documentation talks about sockets and file descriptors. seems it needs more configuration than just that keyword.
Where to put the filepath ?
I can't find any examples of that use
Thanks
systemd logs services stdout
asked Dec 5 '17 at 13:11
exeralexeral
16114
bumped to the homepage by Community♦ 2 days ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
This is a duplicate of Redirect systemd service logs to file... However, the answer there does not answer your question (it doesn't answer the duplicate question either). You might find this answer useful...
– don_crissti
Dec 5 '17 at 13:16
my workaround: create a shell launcher that redirect stdout to file and launch that script through systemd.
– exeral
Dec 13 '17 at 13:23
add a comment |
I have a systemd service:
[Unit]
Description=My application
[Service]
ExecStart=/bin/java myapp.jar
Type=simple
User=photo
There is an option: StandardOutput= but I don't understand how to use it to write to a file.
https://www.freedesktop.org/software/systemd/man/systemd.exec.html
I was expecting to put a filepath somehere but the documentation talks about sockets and file descriptors. seems it needs more configuration than just that keyword.
Where to put the filepath ?
I can't find any examples of that use
Thanks
systemd logs services stdout
asked Dec 5 '17 at 13:11
exeralexeral
16114
I have a systemd service:
[Unit]
Description=My application
[Service]
ExecStart=/bin/java myapp.jar
Type=simple
User=photo
There is an option: StandardOutput= but I don't understand how to use it to write to a file.
https://www.freedesktop.org/software/systemd/man/systemd.exec.html
I was expecting to put a filepath somehere but the documentation talks about sockets and file descriptors. seems it needs more configuration than just that keyword.
Where to put the filepath ?
I can't find any examples of that use
Thanks
systemd logs services stdout
systemd logs services stdout
asked Dec 5 '17 at 13:11
exeralexeral
16114
asked Dec 5 '17 at 13:11
exeralexeral
16114
asked Dec 5 '17 at 13:11
exeralexeral
16114
asked Dec 5 '17 at 13:11
exeralexeral
16114
asked Dec 5 '17 at 13:11
exeralexeral
16114
16114
bumped to the homepage by Community♦ 2 days ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 2 days ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
1
This is a duplicate of Redirect systemd service logs to file... However, the answer there does not answer your question (it doesn't answer the duplicate question either). You might find this answer useful...
– don_crissti
Dec 5 '17 at 13:16
my workaround: create a shell launcher that redirect stdout to file and launch that script through systemd.
– exeral
Dec 13 '17 at 13:23
add a comment |
1
This is a duplicate of Redirect systemd service logs to file... However, the answer there does not answer your question (it doesn't answer the duplicate question either). You might find this answer useful...
– don_crissti
Dec 5 '17 at 13:16
my workaround: create a shell launcher that redirect stdout to file and launch that script through systemd.
– exeral
Dec 13 '17 at 13:23
1
1
This is a duplicate of Redirect systemd service logs to file... However, the answer there does not answer your question (it doesn't answer the duplicate question either). You might find this answer useful...
– don_crissti
Dec 5 '17 at 13:16
This is a duplicate of Redirect systemd service logs to file... However, the answer there does not answer your question (it doesn't answer the duplicate question either). You might find this answer useful...
– don_crissti
Dec 5 '17 at 13:16
my workaround: create a shell launcher that redirect stdout to file and launch that script through systemd.
– exeral
Dec 13 '17 at 13:23
my workaround: create a shell launcher that redirect stdout to file and launch that script through systemd.
– exeral
Dec 13 '17 at 13:23
add a comment |
1 Answer
1
active
oldest
votes
Use:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/java -jar myapp.jar
Type=simple
User=photo
StandardOutput=file:/var/log/logfile
as documented here: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#StandardOutput=
Note that this way log files contents will be overwritten each time service restarts. StandardOutput/Error systemd directives do not support appending to files.
If you want to maintain file log between service restarts and just append new logged lines to it, use instead:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/sh -c 'exec /usr/bin/java -jar myapp.jar'
Type=simple
User=photo
exec means that shell program will be substituted with /bin/java program after setting up redirections without forking. So there will be no difference from running /bin/java directly after ExecStart=.
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
add a comment |
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1 Answer
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active
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votes
1 Answer
1
active
oldest
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oldest
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votes
Use:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/java -jar myapp.jar
Type=simple
User=photo
StandardOutput=file:/var/log/logfile
as documented here: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#StandardOutput=
Note that this way log files contents will be overwritten each time service restarts. StandardOutput/Error systemd directives do not support appending to files.
If you want to maintain file log between service restarts and just append new logged lines to it, use instead:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/sh -c 'exec /usr/bin/java -jar myapp.jar'
Type=simple
User=photo
exec means that shell program will be substituted with /bin/java program after setting up redirections without forking. So there will be no difference from running /bin/java directly after ExecStart=.
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
add a comment |
Use:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/java -jar myapp.jar
Type=simple
User=photo
StandardOutput=file:/var/log/logfile
as documented here: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#StandardOutput=
Note that this way log files contents will be overwritten each time service restarts. StandardOutput/Error systemd directives do not support appending to files.
If you want to maintain file log between service restarts and just append new logged lines to it, use instead:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/sh -c 'exec /usr/bin/java -jar myapp.jar'
Type=simple
User=photo
exec means that shell program will be substituted with /bin/java program after setting up redirections without forking. So there will be no difference from running /bin/java directly after ExecStart=.
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
add a comment |
Use:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/java -jar myapp.jar
Type=simple
User=photo
StandardOutput=file:/var/log/logfile
as documented here: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#StandardOutput=
Note that this way log files contents will be overwritten each time service restarts. StandardOutput/Error systemd directives do not support appending to files.
If you want to maintain file log between service restarts and just append new logged lines to it, use instead:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/sh -c 'exec /usr/bin/java -jar myapp.jar'
Type=simple
User=photo
exec means that shell program will be substituted with /bin/java program after setting up redirections without forking. So there will be no difference from running /bin/java directly after ExecStart=.
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
Use:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/java -jar myapp.jar
Type=simple
User=photo
StandardOutput=file:/var/log/logfile
as documented here: https://www.freedesktop.org/software/systemd/man/systemd.exec.html#StandardOutput=
Note that this way log files contents will be overwritten each time service restarts. StandardOutput/Error systemd directives do not support appending to files.
If you want to maintain file log between service restarts and just append new logged lines to it, use instead:
[Unit]
Description=My application
[Service]
ExecStart=/usr/bin/sh -c 'exec /usr/bin/java -jar myapp.jar'
Type=simple
User=photo
exec means that shell program will be substituted with /bin/java program after setting up redirections without forking. So there will be no difference from running /bin/java directly after ExecStart=.
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
edited Dec 7 '18 at 17:31
Evgeny Lebedev
14715
14715
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
answered Nov 4 '18 at 0:42
Piotr JurkiewiczPiotr Jurkiewicz
744512
744512
add a comment |
add a comment |
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1
This is a duplicate of Redirect systemd service logs to file... However, the answer there does not answer your question (it doesn't answer the duplicate question either). You might find this answer useful...
– don_crissti
Dec 5 '17 at 13:16
my workaround: create a shell launcher that redirect stdout to file and launch that script through systemd.
– exeral
Dec 13 '17 at 13:23