View source for Sysdig


{{ReviewsComments| JPR 20Dec'18: Latest action:<br/>
- Not possible with SDK, need to run with distribution.<br/>
- With distrib, need to get latest version of sysdig because of kernel driver compatibility with 4.14/4.19<br/>
- Need to have one recipe for sysdig application, and one for sysdig driver<br/>
- Need to create a new recipe for libb64<br/>
- All in /local/opt/st/stm32mp1/2.4-snapshot-openstlinux-4.14-rocko-mp1-18-11-02/<br/>
- 2 gerrits pushed to integrate the recipes, then user have only to add sysdig and sysdig-driver in the weston image: https://gerrit.st.com/#/c/119920/ and https://gerrit.st.com/#/c/119921/
}}

== Article purpose ==
This article provides basic information to start using the Linux tool: '''sysdig'''<ref name=sysdigdotorg/>.

== Introduction ==
{{:Trace_and_debug_tools_assignment_table_template}}
<onlyinclude>
 | [[Sysdig|sysdig]]
 | [[:Category:Monitoring tools|Monitoring tools]]
 | style="text-align:left;" | '''sysdig'''<ref name=sysdigdotorg>https://sysdig.com</ref> is a tool for system troubleshooting, analysis and exploration. It can be used to capture, filter and decode system calls and other OS events.
 | {{N}} || {{N}} || {{Y}}
 | {{N}} || {{N}} || {{N}}
 |-
</onlyinclude>
 |}

'''sysdig''' can be both used to inspect live systems or to generate trace files that can be analyzed at a later stage.

It includes a powerul filtering language, has customizable output, and can be extended through [http://www.lua.org/ Lua] scripts, called chisels.

'''sysdig''' aims to replace a collection of tools, as lsof, strace, iostat, ps, etc...

== Installing the trace and debug tool on your target board ==
'''sysdig''' is a user space application {{highlight|which is not part of the standard STM32MPU Embedded Software distribution image and Packages}}. It has to be integrated as an external component.

Linux kernel configuration must also enable '''CONFIG_TRACEPOINTS''' and '''CONFIG_HAVE_SYSCALL_TRACEPOINTS''':
 Symbol: '''TRACEPOINTS''' [{{green|&#61;y}}]
 Selected by: {{highlight|TRACING [&#61;y] &#124;&#124; BLK_DEV_IO_TRACE [&#61;n] && TRACING_SUPPORT [&#61;y] && FTRACE [&#61;y] && SYSFS [&#61;y] && BLOCK [&#61;y]}}
 
 Symbol: '''HAVE_SYSCALL_TRACEPOINTS''' [{{green|&#61;y}}]
 Selected by: {{highlight|ARM [&#61;y]}}

=== Using STM32MPU Embedded Software distribution ===
On STM32MPU Embedded Software distribution(weston), Linux kernel configuration already enable the required configuration options.

==== Developer Package ====
There are too many dependencies for building sysdig application and kernel driver, that's the reason why this is recommended to use the Distribution package to integrate this tool.

==== Distribution Package ====
{{UpdateNeededForNewRelease|Below InteralInfo banner to be removed when integrated after MMDV}}
{{InternalInfo|<br/>
This is NOT present on MMDV}}
Yocto recipes for building sysdig are part of the OpenSTLinux distribution.

Following steps to be done to enable sysdig and add it to the st-image-weston image:
* Add sysdig package install for the image
 {{PC$}} echo 'IMAGE_INSTALL_append += "sysdig"' >> layers/meta-st/meta-st-openstlinux/recipes-st/images/st-image-weston.bbappend
 {{PC$}} echo 'IMAGE_INSTALL_append += "sysdig-driver"' >> layers/meta-st/meta-st-openstlinux/recipes-st/images/st-image-weston.bbappend

* Regenerate the image file:
 {{PC$}} bitbake st-image-weston

* Update your board with the new image. See [[STM32MP1 Distribution Package#Flashing the built image|Flashing the built image]].

==Getting started==
Below some basics commands extracted from official sysdig website<ref name=sysdigdotorg/>:
[[File:sysdig_exemples.png|link=]]

==To go further==
{{UnderConstruction}}

== References ==
<references />

{|
|+ "External links"
|-
! scope=col | Document link
! scope=col | Document Type
! scope=col | Description
|-
| [https://github.com/draios/sysdig/blob/master/userspace/sysdig/man/sysdig.md sysdig manpage]
| Standard
| Man page from Official github
|-
| [https://github.com/draios/sysdig/wiki sysdig wiki documentation]
| User Guide
| Documentation from Official github
|}

{{ ArticleBasedOnModel | Trace and debug tools article model }}

[[Category:Linux monitoring tools]]