I installed Docker on my Windows Server 2012 R2 machine and tried to use the Keycloak Docker image.  I ran  "docker run -it -p 8080:8080 -p 9090:9090 jboss/keycloak" and received the following error:

java.lang.IllegalArgumentException: Failed to instantiate class "org.jboss.logma
nager.handlers.PeriodicRotatingFileHandler" for handler "FILE"
        at org.jboss.logmanager.config.AbstractPropertyConfiguration$ConstructAc
tion.validate(AbstractPropertyConfiguration.java:119)
.
.
.
        at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
        at org.jboss.logmanager.config.AbstractPropertyConfiguration$ConstructAc
tion.validate(AbstractPropertyConfiguration.java:117)
        ... 19 more
Caused by: java.io.FileNotFoundException: /opt/wildfly/standalone/log/server.log
 (No such file or directory)
        at java.io.FileOutputStream.open(Native Method)
        at java.io.FileOutputStream.<init>(FileOutputStream.java:221)

Any ideas?