[FIXED] Import .cer to cacerts using image openjdk - java.io.FileNotFoundException

Issue

Trying to import my cert into cacerts using openjdk docker image. Getting error java.io.FileNotFoundException.

Dockerfile

FROM openjdk:17.0.2-jdk
COPY target/classes/cert/mycert.cer mycert.cer
COPY entrypoint.sh entrypoint.sh

ENTRYPOINT ["sh", "./entrypoint.sh"]

EXPOSE 8888

entrypoint.sh

echo "Installing certs to JDK" && \
keytool -importcert -file mycert.cer -alias mycert -keystore $JAVA_HOME/jre/lib/security/cacerts -storepass changeit

docker build -f Dockerfile -t java_test2 .

docker run java_test2

Installing certs to JDK
Certificate was added to keystore
keytool error: java.io.FileNotFoundException: /usr/java/openjdk-17/jre/lib/security/cacerts (No such file or directory)

Solution

To use cacerts in OPENJDK use:

$JAVA_HOME/lib/security/cacerts 

instead

$JAVA_HOME/jre/lib/security/cacerts

Answered By - Dilitand
Answer Checked By - David Goodson (JavaFixing Volunteer)