Multiple stop and starts results in a docker exception when port is exposed #1532
Description
Hi,
when I create a container with a fixed exposed port and call start + stop multiple times, I get an error. First things first. Here is the container for my tests (I know there is a dedicated Nginx TestContainer but this is just to reproduce the problem and Nginx is easy to use):
class MyContainer : FixedHostPortGenericContainer<MyContainer>("nginx:1.17.0-alpine") {
override fun configure() {
withFixedExposedPort(5000, 80)
}
}
and here the function using the container:
fun main() {
val container = MyContainer()
repeat(10) {
println("--> Running Container: $it")
container.start()
container.stop()
}
}
When I run this, the first iteration is ok, but in the second one I get this root cause:
... 6 more
Caused by: java.lang.reflect.InvocationTargetException
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.testcontainers.dockerclient.AuditLoggingDockerClient.lambda$wrappedCommand$14(AuditLoggingDockerClient.java:98)
... 8 more
Caused by: com.github.dockerjava.api.exception.InternalServerErrorException: {"message":"driver failed programming external connectivity on endpoint adoring_rubin (43003e9ce801010fc73cd3dbc3717f89781d2330a68cb1d918e0cfc149cd630b): Bind for 0.0.0.0:5000 failed: port is already allocated"}
at org.testcontainers.dockerclient.transport.okhttp.OkHttpInvocationBuilder.execute(OkHttpInvocationBuilder.java:276)
at org.testcontainers.dockerclient.transport.okhttp.OkHttpInvocationBuilder.execute(OkHttpInvocationBuilder.java:254)
at org.testcontainers.dockerclient.transport.okhttp.OkHttpInvocationBuilder.post(OkHttpInvocationBuilder.java:115)
at com.github.dockerjava.core.exec.StartContainerCmdExec.execute(StartContainerCmdExec.java:28)
at com.github.dockerjava.core.exec.StartContainerCmdExec.execute(StartContainerCmdExec.java:11)
at com.github.dockerjava.core.exec.AbstrSyncDockerCmdExec.exec(AbstrSyncDockerCmdExec.java:21)
at com.github.dockerjava.core.command.AbstrDockerCmd.exec(AbstrDockerCmd.java:35)
at com.github.dockerjava.core.command.StartContainerCmdImpl.exec(StartContainerCmdImpl.java:46)
... 13 more
I thought It might be a docker issue but then just tried out this:
fun main() {
repeat(10) {
println("--> Running Container: $it")
// Moved this inside the loop to create a new container each iteration
val container = MyContainer()
container.start()
container.stop()
}
}
And this works.
But shouldn't the other approach by creating one container and calling start/stop multiple times also work?