Starting nexus for the first time via docker generates the below warn. No adverse behavior is noted so far but keeping for record and to avoid log spam.
2016-04-05 19:14:32,950+0000 WARN [pool-4-thread-1] org.apache.karaf.features.internal.service.FeaturesServiceImpl - Can't update cfg file java.io.FileNotFoundException: /opt/sonatype/nexus/etc/org.apache.karaf.command.acl.feature.cfg (Permission denied) at java.io.FileOutputStream.open0(Native Method) [na:1.8.0_77] at java.io.FileOutputStream.open(FileOutputStream.java:270) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:162) [na:1.8.0_77] at org.apache.felix.utils.properties.Properties.save(Properties.java:152) [org.apache.karaf.features.core:4.0.4] at org.apache.felix.utils.properties.Properties.save(Properties.java:148) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.updateStorage(FeatureConfigInstaller.java:292) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.installFeatureConfigs(FeatureConfigInstaller.java:107) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:1166) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:778) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985) [org.apache.karaf.features.core:4.0.4] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_77] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_77] 2016-04-05 19:14:33,057+0000 WARN [pool-4-thread-1] org.apache.karaf.features.internal.service.FeaturesServiceImpl - Can't update cfg file java.io.FileNotFoundException: /opt/sonatype/nexus/etc/org.apache.karaf.command.acl.bundle.cfg (Permission denied) at java.io.FileOutputStream.open0(Native Method) [na:1.8.0_77] at java.io.FileOutputStream.open(FileOutputStream.java:270) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:162) [na:1.8.0_77] at org.apache.felix.utils.properties.Properties.save(Properties.java:152) [org.apache.karaf.features.core:4.0.4] at org.apache.felix.utils.properties.Properties.save(Properties.java:148) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.updateStorage(FeatureConfigInstaller.java:292) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.installFeatureConfigs(FeatureConfigInstaller.java:107) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:1166) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:778) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985) [org.apache.karaf.features.core:4.0.4] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_77] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_77] 2016-04-05 19:14:33,091+0000 WARN [pool-4-thread-1] org.apache.karaf.features.internal.service.FeaturesServiceImpl - Can't update cfg file java.io.FileNotFoundException: /opt/sonatype/nexus/etc/org.apache.karaf.command.acl.system.cfg (Permission denied) at java.io.FileOutputStream.open0(Native Method) [na:1.8.0_77] at java.io.FileOutputStream.open(FileOutputStream.java:270) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:162) [na:1.8.0_77] at org.apache.felix.utils.properties.Properties.save(Properties.java:152) [org.apache.karaf.features.core:4.0.4] at org.apache.felix.utils.properties.Properties.save(Properties.java:148) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.updateStorage(FeatureConfigInstaller.java:292) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.installFeatureConfigs(FeatureConfigInstaller.java:107) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:1166) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:778) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985) [org.apache.karaf.features.core:4.0.4] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_77] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_77] 2016-04-05 19:14:33,106+0000 WARN [pool-4-thread-1] org.apache.karaf.features.internal.service.FeaturesServiceImpl - Can't update cfg file java.io.FileNotFoundException: /opt/sonatype/nexus/etc/org.apache.karaf.command.acl.shell.cfg (Permission denied) at java.io.FileOutputStream.open0(Native Method) [na:1.8.0_77] at java.io.FileOutputStream.open(FileOutputStream.java:270) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:162) [na:1.8.0_77] at org.apache.felix.utils.properties.Properties.save(Properties.java:152) [org.apache.karaf.features.core:4.0.4] at org.apache.felix.utils.properties.Properties.save(Properties.java:148) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.updateStorage(FeatureConfigInstaller.java:292) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.installFeatureConfigs(FeatureConfigInstaller.java:107) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:1166) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:773) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985) [org.apache.karaf.features.core:4.0.4] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_77] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_77] 2016-04-05 19:14:33,120+0000 WARN [pool-4-thread-1] org.apache.karaf.features.internal.service.FeaturesServiceImpl - Can't update cfg file java.io.FileNotFoundException: /opt/sonatype/nexus/etc/org.apache.karaf.command.acl.jaas.cfg (Permission denied) at java.io.FileOutputStream.open0(Native Method) [na:1.8.0_77] at java.io.FileOutputStream.open(FileOutputStream.java:270) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:162) [na:1.8.0_77] at org.apache.felix.utils.properties.Properties.save(Properties.java:152) [org.apache.karaf.features.core:4.0.4] at org.apache.felix.utils.properties.Properties.save(Properties.java:148) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.updateStorage(FeatureConfigInstaller.java:292) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.installFeatureConfigs(FeatureConfigInstaller.java:107) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:1166) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:778) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985) [org.apache.karaf.features.core:4.0.4] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_77] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_77] 2016-04-05 19:14:33,167+0000 WARN [pool-4-thread-1] org.apache.karaf.features.internal.service.FeaturesServiceImpl - Can't update cfg file java.io.FileNotFoundException: /opt/sonatype/nexus/etc/org.apache.karaf.command.acl.config.cfg (Permission denied) at java.io.FileOutputStream.open0(Native Method) [na:1.8.0_77] at java.io.FileOutputStream.open(FileOutputStream.java:270) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:213) [na:1.8.0_77] at java.io.FileOutputStream.<init>(FileOutputStream.java:162) [na:1.8.0_77] at org.apache.felix.utils.properties.Properties.save(Properties.java:152) [org.apache.karaf.features.core:4.0.4] at org.apache.felix.utils.properties.Properties.save(Properties.java:148) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.updateStorage(FeatureConfigInstaller.java:292) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeatureConfigInstaller.installFeatureConfigs(FeatureConfigInstaller.java:107) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.installFeature(FeaturesServiceImpl.java:1166) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.Deployer.deploy(Deployer.java:778) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl.doProvision(FeaturesServiceImpl.java:1089) [org.apache.karaf.features.core:4.0.4] at org.apache.karaf.features.internal.service.FeaturesServiceImpl$1.call(FeaturesServiceImpl.java:985) [org.apache.karaf.features.core:4.0.4] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_77] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_77] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_77]
This file is new to 3.0.0. Did not check NX2 at this time.