Checkmk werks level1 March 2024

checkmk-werks-lvl1@lists.checkmk.com

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[2.2.0] Checkmk Werk 16584 adapted: REST API: Fix httpie examples

by Checkmk werks level 1

Werk 16584 was adapted. The following is the new Werk, a diff is shown at the end of the message. Title: REST API: Fix httpie examples Class: fix Compatible: compat Component: rest-api Date: 1710939092 Edition: cre Level: 1 Version: 2.2.0p25 Some httpie examples had a backslash at the end of the last line causing these examples to fail when executed. This Werk fixes the way REST API examples are generated to prevent backslashes at the end of the last line. ------------------------------------<diff>------------------------------------------- Title: REST API: Fix httpie examples Class: fix Compatible: compat Component: rest-api Date: 1710939092 Edition: cre Level: 1 - Version: 2.2.0p24 ? ^ + Version: 2.2.0p25 ? ^ Some httpie examples had a backslash at the end of the last line causing these examples to fail when executed. This Werk fixes the way REST API examples are generated to prevent backslashes at the end of the last line.

6 months

[2.2.0] Checkmk Werk 16629 adapted: Virtual host tree links work for more than three host tag groups

by Checkmk werks level 1

Werk 16629 was adapted. The following is the new Werk, a diff is shown at the end of the message. Title: Virtual host tree links work for more than three host tag groups Class: fix Compatible: compat Component: multisite Date: 1710494682 Edition: cre Level: 1 Version: 2.2.0p25 A virtual host tree (Setup > General > Global settings > User interface > Virtual host trees) can be configured with more than three host tag tree levels. Yet, the corresponding views that are linked to from the sidebar element "Virtual host trees" were not able to display more than three rows in the "Host tags" filter and thus only filtered for the first three. This is fixed. A virtual host tree link as described above now leads to a properly filtered view with all the given host tag filters shown in the filter popup. ------------------------------------<diff>------------------------------------------- Title: Virtual host tree links work for more than three host tag groups Class: fix Compatible: compat Component: multisite Date: 1710494682 Edition: cre Level: 1 - Version: 2.2.0p24 ? ^ + Version: 2.2.0p25 ? ^ A virtual host tree (Setup > General > Global settings > User interface > Virtual host trees) can be configured with more than three host tag tree levels. Yet, the corresponding views that are linked to from the sidebar element "Virtual host trees" were not able to display more than three rows in the "Host tags" filter and thus only filtered for the first three. This is fixed. A virtual host tree link as described above now leads to a properly filtered view with all the given host tag filters shown in the filter popup.

6 months

[2.2.0] Checkmk Werk 16550 adapted: Linux remote alert handlers not running under non-root user

by Checkmk werks level 1

Werk 16550 was adapted. The following is the new Werk, a diff is shown at the end of the message. Title: Linux remote alert handlers not running under non-root user Class: fix Compatible: compat Component: agents Date: 1710234878 Edition: cee Level: 1 Version: 2.2.0p25 In the ruleset Remote alert handlers (Linux), you have to specify a user under that the remote alert handler will be executed on agent side. This user is set to root by default, but it's possible to choose an arbitrary user. But, when choosing a non-root user, the alert handlers previously failed to execute, because the handler files got deployed with root-ownership and were not readable by others. To fix the problem, the ownership of the files now get changed to the specified user. Security note: In general, it's important that all internal files of the Checkmk agent have root ownership, as they might be read/executed by the Checkmk agent under root. However, this is not the case for remote alert handlers, as they always get executed under the specified user. As an additional security measure, the dispatcher on agent side checks the ownership of installed remote alert handlers, and refuses to execute non-root owned handlers when called via SSH with root rights. ------------------------------------<diff>------------------------------------------- Title: Linux remote alert handlers not running under non-root user Class: fix Compatible: compat Component: agents Date: 1710234878 Edition: cee Level: 1 - Version: 2.2.0p24 ? ^ + Version: 2.2.0p25 ? ^ In the ruleset Remote alert handlers (Linux), you have to specify a user under that the remote alert handler will be executed on agent side. This user is set to root by default, but it's possible to choose an arbitrary user. But, when choosing a non-root user, the alert handlers previously failed to execute, because the handler files got deployed with root-ownership and were not readable by others. To fix the problem, the ownership of the files now get changed to the specified user. Security note: In general, it's important that all internal files of the Checkmk agent have root ownership, as they might be read/executed by the Checkmk agent under root. However, this is not the case for remote alert handlers, as they always get executed under the specified user. As an additional security measure, the dispatcher on agent side checks the ownership of installed remote alert handlers, and refuses to execute non-root owned handlers when called via SSH with root rights.

6 months

[2.2.0] Checkmk Werk 16497 adapted: agent_aws: Use proxy for connections to 'STS' client

by Checkmk werks level 1

Werk 16497 was adapted. The following is the new Werk, a diff is shown at the end of the message. Title: agent_aws: Use proxy for connections to 'STS' client Class: fix Compatible: compat Component: checks Date: 1709804740 Edition: cre Level: 1 Version: 2.2.0p25 Previously, if configured, proxy was used to connect to all clients except for the 'STS' client. This led to a crash in the agent if 'STS' client was only accessible via proxy. Now, the configured proxy will be used for the 'STS' client as well. ------------------------------------<diff>------------------------------------------- Title: agent_aws: Use proxy for connections to 'STS' client Class: fix Compatible: compat Component: checks Date: 1709804740 Edition: cre Level: 1 - Version: 2.2.0p24 ? ^ + Version: 2.2.0p25 ? ^ Previously, if configured, proxy was used to connect to all clients except for the 'STS' client. This led to a crash in the agent if 'STS' client was only accessible via proxy. Now, the configured proxy will be used for the 'STS' client as well.

6 months

[2.2.0] Checkmk Werk 16498 adapted: cisco_redundancy: handle new swact reasons

by Checkmk werks level 1

Werk 16498 was adapted. The following is the new Werk, a diff is shown at the end of the message. Title: cisco_redundancy: handle new swact reasons Class: fix Compatible: compat Component: checks Date: 1709890474 Edition: cre Level: 1 Version: 2.2.0p25 Fixes a crash in the check plugin, caused by not handling two recently added switch of activity reasons. ------------------------------------<diff>------------------------------------------- Title: cisco_redundancy: handle new swact reasons Class: fix Compatible: compat Component: checks Date: 1709890474 Edition: cre Level: 1 - Version: 2.2.0p24 ? ^ + Version: 2.2.0p25 ? ^ Fixes a crash in the check plugin, caused by not handling two recently added switch of activity reasons.

6 months

[2.2.0] Checkmk Werk 16579 adapted: downtimes: Added 'modify downtimes' endpoint

by Checkmk werks level 1

Werk 16579 was adapted. The following is the new Werk, a diff is shown at the end of the message. Title: downtimes: Added 'modify downtimes' endpoint Class: feature Compatible: compat Component: rest-api Date: 1709289998 Edition: cre Level: 1 Version: 2.2.0p25 With this Werk a new endpoint for modifying downtimes is incorporated. It is possible to modify the comment and the end timestamp as in the GUI. The selection of downtimes to modify can be done by id, by query, or by hostname and service description. Method: PUT URL: domain-types/downtime/actions/modify/invoke ------------------------------------<diff>------------------------------------------- Title: downtimes: Added 'modify downtimes' endpoint Class: feature Compatible: compat Component: rest-api Date: 1709289998 Edition: cre Level: 1 - Version: 2.2.0p24 ? ^ + Version: 2.2.0p25 ? ^ With this Werk a new endpoint for modifying downtimes is incorporated. It is possible to modify the comment and the end timestamp as in the GUI. The selection of downtimes to modify can be done by id, by query, or by hostname and service description. Method: PUT URL: domain-types/downtime/actions/modify/invoke

6 months

[2.2.0] Checkmk Werk 16494 adapted: netapp_ontap_temp: restore check of list of sensors

by Checkmk werks level 1

Werk 16494 was adapted. The following is the new Werk, a diff is shown at the end of the message. Title: netapp_ontap_temp: restore check of list of sensors Class: fix Compatible: compat Component: checks Date: 1708967815 Edition: cre Level: 1 Version: 2.2.0p25 The above-mentioned plugin now monitors the list of ambient and internal temperature sensors, sticking to the logic of the netapp_api_temp plugin (old Netapp API). A re-discovery is needed to monitor the new services. ------------------------------------<diff>------------------------------------------- Title: netapp_ontap_temp: restore check of list of sensors Class: fix Compatible: compat Component: checks Date: 1708967815 Edition: cre Level: 1 - Version: 2.2.0p24 ? ^ + Version: 2.2.0p25 ? ^ The above-mentioned plugin now monitors the list of ambient and internal temperature sensors, sticking to the logic of the netapp_api_temp plugin (old Netapp API). A re-discovery is needed to monitor the new services.

6 months

[2.2.0] Checkmk Werk 16176 created: postfix: Fix Postfix status monitoring for agents run in Docker

by Checkmk werks level 1

Title: postfix: Fix Postfix status monitoring for agents run in Docker Class: fix Compatible: compat Component: checks Date: 1710323821 Edition: cre Level: 1 Version: 2.2.0p24 Previously, Checkmk agent used the data from /proc to determine if Postfix instance is running. Since docker containers don't have permissions to read /proc, the agent always reported the Postfix instance as 'not running'. This resulted in CRIT 'Postfix status' service even if Postfix instance was running correctly.

6 months

[2.2.0] Checkmk Werk 16584 created: REST API: Fix httpie examples

by Checkmk werks level 1

Title: REST API: Fix httpie examples Class: fix Compatible: compat Component: rest-api Date: 1710939092 Edition: cre Level: 1 Version: 2.2.0p24 Some httpie examples had a backslash at the end of the last line causing these examples to fail when executed. This Werk fixes the way REST API examples are generated to prevent backslashes at the end of the last line.

6 months

[2.2.0] Checkmk Werk 16179 created: size_trend: Treat negative free space as 0 in all cases

by Checkmk werks level 1

Title: size_trend: Treat negative free space as 0 in all cases Class: fix Compatible: compat Component: checks Date: 1710929049 Edition: cre Level: 1 Version: 2.2.0p24 Before the version 2.2.0p21, 'Time left until full' was reported to be 0 in case of devices reporting negative free space. With werk 16330, we stopped reporting the metric in case of very small size changes because it lead to infinite values. With this change the behavior was unintentionally also changed for negative free space values. This werk restores the same functionality in case of negative free space.

6 months

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Checkmk werks level1 March 2024