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I've added the following to my dockerfile:
USER 0
RUN command -v yum && pkgcmd=yum || pkgcmd=microdnf && ($pkgcmd update -y && $pkgcmd install -y procps-ng net-tools ncurses hostname)
USER 1001
I can verify they are present in the pod:
sh-4.4$ rpm -q net-tools
net-tools-2.0-0.52.20160912git.el8.x86_64
sh-4.4$ rpm -q procps-ng
procps-ng-3.3.15-14.el8.x86_64
sh-4.4$ rpm -q ncurses
ncurses-6.1-10.20180224.el8.x86_64
On the following base image:
icr.io/appcafe/open-liberty:kernel-slim-java11-openj9-ubi
I get java cores and errors in logs:
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.171957.1.0001.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:20:27 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172027.1.0002.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172027.1.0002.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:20:57 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172057.1.0003.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172057.1.0003.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:21:28 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172128.1.0004.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172128.1.0004.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:21:58 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172158.1.0005.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172158.1.0005.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:22:28 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172228.1.0006.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172228.1.0006.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:22:58 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172258.1.0007.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172258.1.0007.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:23:28 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172328.1.0008.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172328.1.0008.txt
JVMDUMP013I Processed dump event "user", detail "".
JVMDUMP039I Processing dump event "user", detail "" at 2025/09/04 17:23:58 - please wait.
JVMDUMP032I JVM requested Java dump using '/serviceability/javacore.20250904.172358.1.0009.txt' in response to an event
JVMDUMP012E Error in Java dump: /serviceability/javacore.20250904.172358.1.0009.txt
JVMDUMP013I Processed dump event "user", detail "".