如何将我的 play scala 应用程序 docker 化?

How to dockerize my play scala app?

这是我第一次使用 Docker。我安装正确,守护进程服务是 运行ning,正如所说,这是必要的。所以,我有一个使用 play Framework 和 scala 语言构建的简单网络应用程序。在我 运行 "sbt docker:publishLocal" 之后,我获得了 "Built image play-scala-book:1.0-SNAPSHOT" 成功。我导出 "DOCKER_HOST=tcp://192.168.0.8:2375"。我的 built.sbt 是 >>

// import NativePackagerKeys._
// setting a maintainer which is used for all packaging types
maintainer := "Felipe Oliveira Gutierrez"
// exposing the play ports
dockerExposedPorts in Docker := Seq(9000, 9443)

name := """play-scala-book"""
version := "1.0-SNAPSHOT"
lazy val root = (project in file(".")).enablePlugins(PlayScala)
scalaVersion := "2.11.7"

libraryDependencies ++= Seq(
  jdbc,
  cache,
  ws,
  evolutions,
  "com.typesafe.play" %% "anorm" % "2.4.0",
  "commons-codec" % "commons-codec" % "1.6",
  specs2 % Test
)
resolvers += "scalaz-bintray" at "http://dl.bintray.com/scalaz/releases"
// enablePlugins(JavaAppPackaging)

但是当我 运行 "docker run -p 9000:9000 play-scala-book:1.0-SNAPSHOT" 我得到这个错误 >>

[info] application - Creating Pool for datasource 'default'
[info] p.a.d.DefaultDBApi - Database [default] connected at jdbc:h2:mem:play
[error] o.j.StatementLogger - java.sql.Statement.executeQuery: select id, hash, apply_script, revert_script, state, last_problem from play_evolutions where state like 'applying_%';
throws exception: org.h2.jdbc.JdbcSQLException: Table "PLAY_EVOLUTIONS" not found; SQL statement:
select id, hash, apply_script, revert_script, state, last_problem from play_evolutions where state like 'applying_%' [42102-191]
org.h2.jdbc.JdbcSQLException: Table "PLAY_EVOLUTIONS" not found; SQL statement:
select id, hash, apply_script, revert_script, state, last_problem from play_evolutions where state like 'applying_%' [42102-191]
    at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
    at org.h2.message.DbException.get(DbException.java:179)
    at org.h2.message.DbException.get(DbException.java:155)
    at org.h2.command.Parser.readTableOrView(Parser.java:5349)
    at org.h2.command.Parser.readTableFilter(Parser.java:1245)
    at org.h2.command.Parser.parseSelectSimpleFromPart(Parser.java:1884)
    at org.h2.command.Parser.parseSelectSimple(Parser.java:2032)
    at org.h2.command.Parser.parseSelectSub(Parser.java:1878)
    at org.h2.command.Parser.parseSelectUnion(Parser.java:1699)
    at org.h2.command.Parser.parseSelect(Parser.java:1687)
[warn] p.a.d.e.ApplicationEvolutions - Your production database [default] needs evolutions! 

# --- Rev:1,Ups - 96578d1
CREATE SEQUENCE book_id_seq;

CREATE TABLE book (
id integer NOT NULL DEFAULT nextval('book_id_seq'),
label varchar(255),
added bigint
);

[warn] p.a.d.e.ApplicationEvolutions - Run with -Dplay.evolutions.db.default.autoApply=true if you want to run them automatically (be careful)
[error] p.a.l.c.CryptoConfigParser - The application secret has not been set, and we are in prod mode. Your application is not secure.
[error] p.a.l.c.CryptoConfigParser - To set the application secret, please read http://playframework.com/documentation/latest/ApplicationSecret
[error] p.a.l.c.CryptoConfigParser - The application secret has not been set, and we are in prod mode. Your application is not secure.
[error] p.a.l.c.CryptoConfigParser - To set the application secret, please read http://playframework.com/documentation/latest/ApplicationSecret
[error] p.a.l.c.CryptoConfigParser - The application secret has not been set, and we are in prod mode. Your application is not secure.
[error] p.a.l.c.CryptoConfigParser - To set the application secret, please read http://playframework.com/documentation/latest/ApplicationSecret
[info] application - ApplicationTimer demo: Starting application at 2016-05-29T15:57:43.182Z.
[error] p.a.l.c.CryptoConfigParser - The application secret has not been set, and we are in prod mode. Your application is not secure.
[error] p.a.l.c.CryptoConfigParser - To set the application secret, please read http://playframework.com/documentation/latest/ApplicationSecret
[error] p.a.l.c.CryptoConfigParser - The application secret has not been set, and we are in prod mode. Your application is not secure.
[error] p.a.l.c.CryptoConfigParser - To set the application secret, please read http://playframework.com/documentation/latest/ApplicationSecret
[error] p.a.l.c.CryptoConfigParser - The application secret has not been set, and we are in prod mode. Your application is not secure.
[error] p.a.l.c.CryptoConfigParser - To set the application secret, please read http://playframework.com/documentation/latest/ApplicationSecret
Oops, cannot start the server.
@708n7c3af: Database 'default' needs evolution!
    at play.api.db.evolutions.ApplicationEvolutions$$anonfun$play$api$db$evolutions$ApplicationEvolutions$$runEvolutions.apply$mcV$sp(ApplicationEvolutions.scala:75)
    at play.api.db.evolutions.ApplicationEvolutions.withLock(ApplicationEvolutions.scala:99)
    at play.api.db.evolutions.ApplicationEvolutions.play$api$db$evolutions$ApplicationEvolutions$$runEvolutions(ApplicationEvolutions.scala:49)
    at play.api.db.evolutions.ApplicationEvolutions$$anonfun$start.apply(ApplicationEvolutions.scala:42)
    at play.api.db.evolutions.ApplicationEvolutions$$anonfun$start.apply(ApplicationEvolutions.scala:42)
    at scala.collection.immutable.List.foreach(List.scala:381)
    at play.api.db.evolutions.ApplicationEvolutions.start(ApplicationEvolutions.scala:42)
    at play.api.db.evolutions.ApplicationEvolutions.<init>(ApplicationEvolutions.scala:150)
    at play.api.db.evolutions.ApplicationEvolutionsProvider.get$lzycompute(EvolutionsModule.scala:53)
    at play.api.db.evolutions.ApplicationEvolutionsProvider.get(EvolutionsModule.scala:53)
    at play.api.db.evolutions.ApplicationEvolutionsProvider.get(EvolutionsModule.scala:44)
    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.ProviderToInternalFactoryAdapter.call(ProviderToInternalFactoryAdapter.java:46)
    at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1103)
    at com.google.inject.internal.ProviderToInternalFactoryAdapter.get(ProviderToInternalFactoryAdapter.java:40)
    at com.google.inject.internal.SingletonScope.get(SingletonScope.java:145)
    at com.google.inject.internal.InternalFactoryToProviderAdapter.get(InternalFactoryToProviderAdapter.java:41)
    at com.google.inject.internal.InternalInjectorCreator.call(InternalInjectorCreator.java:205)
    at com.google.inject.internal.InternalInjectorCreator.call(InternalInjectorCreator.java:199)
    at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1092)
    at com.google.inject.internal.InternalInjectorCreator.loadEagerSingletons(InternalInjectorCreator.java:199)
    at com.google.inject.internal.InternalInjectorCreator.injectDynamically(InternalInjectorCreator.java:180)
    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:84)
    at play.api.inject.guice.GuiceBuilder.injector(GuiceInjectorBuilder.scala:181)
    at play.api.inject.guice.GuiceApplicationBuilder.build(GuiceApplicationBuilder.scala:123)
    at play.api.inject.guice.GuiceApplicationLoader.load(GuiceApplicationLoader.scala:21)
    at play.core.server.ProdServerStart$.start(ProdServerStart.scala:47)
    at play.core.server.ProdServerStart$.main(ProdServerStart.scala:22)
    at play.core.server.ProdServerStart.main(ProdServerStart.scala)

在我的 conf/application.conf 上我有这个 >

play.evolutions {
  # You can disable evolutions for a specific datasource if necessary
  db.default.enabled = true
  db.default.autoApply = true
}

您似乎没有将进化设置为自动应用 ups。尝试将以下行添加到您的 application.conf 并重试。

play.evolutions.db.default.autoApply=true