Bundled libsigar-amd64-linux.so not compatible with Alpine Linux

[marklieberman]

I have a Java8 application that runs in an Ubuntu-based Docker container. It works fine but I am trying to shrink it down a bit by using an Alpine Linux-based Docker container.

From what I can gather, it seems like the standard libsigar in the JAR file isn't compatible with Alpine Linux (something about glibc vs. musl libc?) In any case, there a Sigar package that provides me with a working libsigar via the OS's package manager.

How can I tell sigar-loader or Kamon to just use the OS's version of the library rather than the JAR?

---

The error when I try to run my application in Alpine Linux is:

Oops, cannot start the server.
com.google.inject.CreationException: Unable to create injector, see the following errors:

1) Error injecting method, java.lang.UnsatisfiedLinkError: /opt/play/native/libsigar-amd64-linux.so: Error relocating /opt/play/native/libsigar-amd64-linux.so: clnttcp_create: symbol not found
  at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
  at play.libs.akka.AkkaGuiceSupport.bindActor(AkkaGuiceSupport.java:55) (via modules: com.google.inject.util.Modules$OverrideModule -> config.GuiceModule)

1 error
    at com.google.inject.internal.Errors.throwCreationExceptionIfErrorsExist(Errors.java:466)
    at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:176)
    at com.google.inject.internal.InternalInjectorCreator.build(InternalInjectorCreator.java:110)
    at com.google.inject.Guice.createInjector(Guice.java:96)
    at com.google.inject.Guice.createInjector(Guice.java:73)
    at com.google.inject.Guice.createInjector(Guice.java:62)
    at play.api.inject.guice.GuiceBuilder.injector(GuiceInjectorBuilder.scala:126)
    at play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:93)
    at play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21)
    at play.core.server.ProdServerStart$.start(ProdServerStart.scala:52)
    at play.core.server.ProdServerStart$.main(ProdServerStart.scala:27)
    at play.core.server.ProdServerStart.main(ProdServerStart.scala)
Caused by: java.lang.UnsatisfiedLinkError: /opt/play/native/libsigar-amd64-linux.so: Error relocating /opt/play/native/libsigar-amd64-linux.so: clnttcp_create: symbol not found
    at java.lang.ClassLoader$NativeLibrary.load(Native Method)
    at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1938)
    at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1821)
    at java.lang.Runtime.load0(Runtime.java:809)
    at java.lang.System.load(System.java:1086)
    at kamon.sigar.SigarProvisioner.provision(SigarProvisioner.java:179)
    at kamon.system.SystemMetricsExtension.<init>(SystemMetricsExtension.scala:52)
    at kamon.system.SystemMetrics$.createExtension(SystemMetricsExtension.scala:34)
    at kamon.system.SystemMetrics$.createExtension(SystemMetricsExtension.scala:32)
    at akka.actor.ActorSystemImpl.registerExtension(ActorSystem.scala:713)
    at akka.actor.ExtensionId$class.apply(Extension.scala:79)
    at kamon.system.SystemMetrics$.apply(SystemMetricsExtension.scala:32)
    at akka.actor.ExtensionId$class.get(Extension.scala:91)
    at kamon.system.SystemMetrics$.get(SystemMetricsExtension.scala:32)
    at kamon.ModuleLoaderExtension$$anonfun$2$$anonfun$apply$2.apply(ModuleLoader.scala:44)
    at kamon.ModuleLoaderExtension$$anonfun$2$$anonfun$apply$2.apply(ModuleLoader.scala:42)
    at scala.util.Success$$anonfun$map$1.apply(Try.scala:237)
    at scala.util.Try$.apply(Try.scala:192)
    at scala.util.Success.map(Try.scala:237)
    at kamon.ModuleLoaderExtension.<init>(ModuleLoader.scala:38)
    at kamon.ModuleLoader$.createExtension(ModuleLoader.scala:27)
    at kamon.ModuleLoader$.createExtension(ModuleLoader.scala:25)
    at akka.actor.ActorSystemImpl.registerExtension(ActorSystem.scala:713)
    at kamon.Kamon$.start(Kamon.scala:55)
    at kamon.Kamon$.ifStarted(Kamon.scala:95)
    at kamon.Kamon$.metrics(Kamon.scala:78)
    at akka.kamon.instrumentation.LookupDataAware$LookupData$.apply$default$3(DispatcherInstrumentation.scala:184)
    at akka.kamon.instrumentation.DispatcherInstrumentation.aroundDispatchersLookup(DispatcherInstrumentation.scala:83)
    at akka.dispatch.Dispatchers.lookup(Dispatchers.scala:81)
    at akka.dispatch.Dispatchers.defaultGlobalDispatcher(Dispatchers.scala:71)
    at akka.actor.ActorSystemImpl.<init>(ActorSystem.scala:599)
    at akka.actor.ActorSystem$.apply(ActorSystem.scala:142)
    at akka.actor.ActorSystem$.apply(ActorSystem.scala:126)
    at play.api.libs.concurrent.ActorSystemProvider$.start(Akka.scala:291)
    at play.api.libs.concurrent.ActorSystemProvider.get$lzycompute(Akka.scala:256)
    at play.api.libs.concurrent.ActorSystemProvider.get(Akka.scala:255)
    at play.api.libs.concurrent.ActorSystemProvider.get(Akka.scala:251)
    at com.google.inject.internal.ProviderInternalFactory.provision(ProviderInternalFactory.java:81)
    at com.google.inject.internal.BoundProviderFactory.provision(BoundProviderFactory.java:72)
    at com.google.inject.internal.ProviderInternalFactory.circularGet(ProviderInternalFactory.java:61)
    at com.google.inject.internal.BoundProviderFactory.get(BoundProviderFactory.java:62)
    at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:54)
    at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:132)
    at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:93)
    at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:80)
    at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
    at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:80)
    at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:62)
    at com.google.inject.internal.InjectorImpl.injectMembers(InjectorImpl.java:984)
    at com.google.inject.util.Providers$GuicifiedProviderWithDependencies.initialize(Providers.java:149)
    at com.google.inject.util.Providers$GuicifiedProviderWithDependencies$$FastClassByGuice$$2a7177aa.invoke(<generated>)
    at com.google.inject.internal.cglib.reflect.$FastMethod.invoke(FastMethod.java:53)
    at com.google.inject.internal.SingleMethodInjector$1.invoke(SingleMethodInjector.java:57)
    at com.google.inject.internal.SingleMethodInjector.inject(SingleMethodInjector.java:91)
    at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:132)
    at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:93)
    at com.google.inject.internal.MembersInjectorImpl$1.call(MembersInjectorImpl.java:80)
    at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
    at com.google.inject.internal.MembersInjectorImpl.injectAndNotify(MembersInjectorImpl.java:80)
    at com.google.inject.internal.Initializer$InjectableReference.get(Initializer.java:174)
    at com.google.inject.internal.Initializer.injectAll(Initializer.java:108)
    at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:174)
    ... 10 more

[Andrei-Pozolotin]

please try to use glibc based alpine and jdk, i.e.:
https://github.com/frol/docker-alpine-glibc
https://github.com/frol/docker-alpine-oraclejdk8

[zifeo]

Works with: https://github.com/frol/docker-alpine-glibc

[aleksandr-vin]

Works with https://github.com/frol/docker-alpine-oraclejdk8

[carwilki]

resurrecting this issue, glibc is not an option for us. alpine has a version of sigar that works, we have verified that it does. https://pkgs.alpinelinux.org/package/edge/community/x86/sigar

would it be possible to alter the loader so that it will NOT extract if the extract folder location is already present? this would allow for overrides if it is required.