joesan's questions

Tenho um projeto onde construo um plugin de configurações sbt que pretendo usar em todos os meus outros projetos. Neste projeto de plugin sbt, defino várias configurações comuns como resolvers, informações scm, outras configurações estáticas.

Em seguida, publico essa configuração no meu pacote de organizações no GitHub e posso até vê-la disponível, conforme mostrado aqui: https://github.com/orgs/open-electrons/packages

Eu então uso esse plugin de configurações sbt em meus outros projetos adicionando-o assim no projeto plugins.sbt:

addSbtPlugin("com.openelectrons" % "openelectrons-sbt-settings" % "0.0.1")

Quando executo este projeto (digamos Projeto A) que tem este build.sbt:

import SharedSettings._

lazy val commonSettings = SharedSettings.settings

// Build definition for the ocpp-gateway-server project
lazy val ocppGatewayServer = (project in file("."))
  .enablePlugins(PlayScala, DockerPlugin)
  .settings(
    commonSettings,
    ....
    ....

O SharedSettings vem do plugin de configurações sbt que está disponível nos pacotes do GitHub. Então incluo todas essas configurações neste projeto como acima. O SharedSettings na verdade contém os resolvers definidos assim:

  // Dependency resolvers
  val sharedResolvers: Seq[Resolver] = Seq(
    Resolver.mavenCentral,
    "Typesafe Releases" at "https://repo.typesafe.com/typesafe/releases/",
    "Typesafe Snapshots" at "https://repo.typesafe.com/typesafe/snapshots/",
    "GitHub Packages" at "https://maven.pkg.github.com/open-electrons/open-electrons-templates"
  ) ++ Resolver.sonatypeOssRepos("snapshots") ++ Resolver.sonatypeOssRepos("releases")

Quando executo meu Projeto A, não consigo ver que o GitHub Packages está resolvido. A compilação procura pela dependência openelectrons-sbt-settings no repo1 e nestes 3 locais:

[error]   not found: https://repo1.maven.org/maven2/com/openelectrons/openelectrons-sbt-settings_2.12_1.0/0.0.1/openelectrons-sbt-settings-0.0.1.pom
[error]   not found: /home/runner/.ivy2/localcom.openelectrons/openelectrons-sbt-settings/scala_2.12/sbt_1.0/0.0.1/ivys/ivy.xml
[error]   not found: https://repo.scala-sbt.org/scalasbt/sbt-plugin-releases/com.openelectrons/openelectrons-sbt-settings/scala_2.12/sbt_1.0/0.0.1/ivys/ivy.xml
[error]   not found: https://repo.typesafe.com/typesafe/ivy-releases/com.openelectrons/openelectrons-sbt-settings/scala_2.12/sbt_1.0/0.0.1/ivys/ivy.xml

Não vejo nenhuma linha de log onde ele tentou baixá-lo do GitHub Packages. Como faço para corrigir isso?

No meu projeto, estou encontrando um erro de sufixos de versão conflitantes para bibliotecas cats. Executei sbt evicted, mas não consegui entender completamente como interpretá-lo para resolver esse erro. Aqui está a saída evicted:

    * org.scala-lang:scala-library:2.13.12 is selected over {2.13.10, 2.13.8, 2.13.5}
[warn]      +- org.scala-lang:scala3-library_3:3.4.0              (depends on 2.13.12)
[warn]      +- org.typelevel:cats-kernel_2.13:2.9.0               (depends on 2.13.10)
[warn]      +- org.typelevel:cats-core_2.13:2.9.0                 (depends on 2.13.10)
[warn]      +- org.scala-lang.modules:scala-java8-compat_2.13:1.0.0 (depends on 2.13.5)
[warn]      +- com.typesafe.akka:akka-stream_2.13:2.6.21          (depends on 2.13.8)
[warn]      +- com.typesafe.akka:akka-slf4j_2.13:2.6.21           (depends on 2.13.8)
[warn]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.13.8)
[warn]      +- com.typesafe.akka:akka-parsing_2.13:10.2.10        (depends on 2.13.8)
[warn]      +- com.typesafe.akka:akka-http-core_2.13:10.2.10      (depends on 2.13.8)
[warn]      +- com.typesafe.akka:akka-actor_2.13:2.6.21           (depends on 2.13.8)
[warn]      +- com.typesafe.akka:akka-actor-typed_2.13:2.6.21     (depends on 2.13.8)
[warn]      +- com.typesafe:ssl-config-core_2.13:0.6.1            (depends on 2.13.8)
[warn]      +- com.fasterxml.jackson.module:jackson-module-scala_2.13:2.14.3 (depends on 2.13.10)
[warn] To force scalaVersion, add the following:
[warn]  scalaModuleInfo ~= (_.map(_.withOverrideScalaVersion(true)))
[warn] Found version conflict(s) in library dependencies; some are suspected to be binary incompatible:
[warn]  * com.fasterxml.jackson.module:jackson-module-scala_2.13:2.14.3 is selected over 2.11.4
[warn]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 2.14.3)
[warn]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[warn]  * com.typesafe:ssl-config-core_2.13:0.6.1 is selected over 0.4.3
[warn]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 0.6.1)
[warn]      +- com.typesafe.akka:akka-stream_2.13:2.6.21          (depends on 0.4.3)
[info] Here are other dependency conflicts that were resolved:
[info]  * com.typesafe:config:1.4.3 is selected over {1.4.2}
[info]      +- com.typesafe.play:play-configuration_3:2.9.6       (depends on 1.4.3)
[info]      +- com.typesafe.akka:akka-actor_2.13:2.6.21           (depends on 1.4.2)
[info]      +- com.typesafe:ssl-config-core_2.13:0.6.1            (depends on 1.4.2)
[info]  * com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.14.3 is selected over 2.11.4
[info]      +- org.playframework:play-json_3:3.0.4                (depends on 2.14.3)
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 2.14.3)
[info]      +- com.typesafe.play:play-json_3:2.10.6               (depends on 2.14.3)
[info]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[info]  * org.reactivestreams:reactive-streams:1.0.4 is selected over {1.0.3}
[info]      +- com.typesafe.play:play-streams_3:2.9.6             (depends on 1.0.4)
[info]      +- com.hivemq:hivemq-mqtt-client:1.3.3                (depends on 1.0.4)
[info]      +- io.reactivex.rxjava2:rxjava:2.2.21                 (depends on 1.0.3)
[info]      +- io.monix:monix-execution_3:3.4.0                   (depends on 1.0.3)
[info]      +- com.typesafe.akka:akka-stream_2.13:2.6.21          (depends on 1.0.3)
[info]  * org.postgresql:postgresql:42.6.0 is selected over 42.3.1
[info]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 42.6.0)
[info]      +- org.tpolecat:doobie-postgres_3:1.0.0-RC4           (depends on 42.6.0)
[info]      +- org.postgresql:postgresql:42.3.1                   (depends on 42.3.1)
[info]  * com.h2database:h2:1.4.200 is selected over 1.4.199
[info]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 1.4.200)
[info]      +- org.tpolecat:doobie-h2_3:1.0.0-RC4                 (depends on 1.4.200)
[info]      +- com.h2database:h2:1.4.199                          (depends on 1.4.199)
[info]  * ch.qos.logback:logback-classic:1.5.12 is selected over 1.2.6
[info]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 1.5.12)
[info]      +- com.typesafe.play:play-logback_3:2.9.6             (depends on 1.5.12)
[info]      +- ch.qos.logback:logback-classic:1.2.6               (depends on 1.2.6)
[info]  * org.checkerframework:checker-qual:3.37.0 is selected over {3.31.0}
[info]      +- org.postgresql:postgresql:42.3.1                   (depends on 3.37.0)
[info]      +- org.postgresql:postgresql:42.6.0                   (depends on 3.31.0)
[info]  * co.fs2:fs2-core_3:3.9.1 is selected over {3.7.0}
[info]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 3.9.1)
[info]      +- org.tpolecat:doobie-free_3:1.0.0-RC4               (depends on 3.7.0)
[info]      +- co.fs2:fs2-io_3:3.7.0                              (depends on 3.7.0)
[info]  * com.fasterxml.jackson.core:jackson-annotations:2.14.3 is selected over {2.11.4}
[info]      +- org.playframework:play-json_3:3.0.4                (depends on 2.14.3)
[info]      +- com.fasterxml.jackson.module:jackson-module-scala_2.13:2.14.3 (depends on 2.14.3)
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 2.14.3)
[info]      +- com.typesafe.play:play-json_3:2.10.6               (depends on 2.14.3)
[info]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[info]  * com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:2.14.3 is selected over 2.11.4
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 2.14.3)
[info]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[info]  * com.fasterxml.jackson.core:jackson-core:2.14.3 is selected over {2.11.4}
[info]      +- org.playframework:play-json_3:3.0.4                (depends on 2.14.3)
[info]      +- com.fasterxml.jackson.module:jackson-module-scala_2.13:2.14.3 (depends on 2.14.3)
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 2.14.3)
[info]      +- com.typesafe.play:play-json_3:2.10.6               (depends on 2.14.3)
[info]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[info]  * org.typelevel:cats-core_3:2.12.0 is selected over {2.10.0, 2.9.0}
[info]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 2.12.0)
[info]      +- org.typelevel:cats-free_3:2.9.0                    (depends on 2.9.0)
[info]      +- org.typelevel:cats-effect-kernel_3:3.5.7           (depends on 2.9.0)
[info]      +- org.tpolecat:doobie-free_3:1.0.0-RC4               (depends on 2.9.0)
[info]      +- com.comcast:ip4s-core_3:3.3.0                      (depends on 2.9.0)
[info]      +- co.fs2:fs2-core_3:3.9.1                            (depends on 2.10.0)
[info]  * org.typelevel:cats-effect_3:3.5.7 is selected over {3.5.1, 3.4.8, 3.5.0}
[info]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 3.5.7)
[info]      +- org.tpolecat:doobie-free_3:1.0.0-RC4               (depends on 3.5.0)
[info]      +- com.comcast:ip4s-core_3:3.3.0                      (depends on 3.4.8)
[info]      +- co.fs2:fs2-core_3:3.9.1                            (depends on 3.5.1)
[info]  * com.fasterxml.jackson.module:jackson-module-parameter-names:2.14.3 is selected over 2.11.4
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 2.14.3)
[info]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[info]  * com.fasterxml.jackson.core:jackson-databind:2.14.3 is selected over {2.11.4}
[info]      +- org.playframework:play-json_3:3.0.4                (depends on 2.14.3)
[info]      +- com.fasterxml.jackson.module:jackson-module-scala_2.13:2.14.3 (depends on 2.14.3)
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 2.14.3)
[info]      +- com.typesafe.play:play-json_3:2.10.6               (depends on 2.14.3)
[info]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[info]  * com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.14.3 is selected over 2.11.4
[info]      +- org.playframework:play-json_3:3.0.4                (depends on 2.14.3)
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 2.14.3)
[info]      +- com.typesafe.play:play-json_3:2.10.6               (depends on 2.14.3)
[info]      +- com.typesafe.akka:akka-serialization-jackson_2.13:2.6.21 (depends on 2.11.4)
[info]  * org.scala-lang:scala3-library_3:3.4.0 is selected over {3.3.0, 3.2.2, 3.3.4, 3.3.3, 3.0.0, 3.2.1, 3.1.3}
[info]      +- com.openelectrons:ocpp-gateway-server_3:1.0-SNAPSHOT (depends on 3.4.0)
[info]      +- com.openelectrons:ocpiv22-api_3:0.0.1-SNAPSHOT     (depends on 3.4.0)
[info]      +- com.openelectrons:ocpp-messages_3:0.0.1-SNAPSHOT   (depends on 3.4.0)
[info]      +- com.openelectrons:ocpiv22-messages_3:0.0.1-SNAPSHOT (depends on 3.4.0)
[info]      +- com.openelectrons:ocpp-j-api_3:0.0.1-SNAPSHOT      (depends on 3.4.0)
[info]      +- org.typelevel:literally_3:1.1.0                    (depends on 3.1.3)
[info]      +- org.typelevel:cats-kernel_3:2.12.0                 (depends on 3.3.3)
[info]      +- org.typelevel:cats-free_3:2.9.0                    (depends on 3.2.1)
[info]      +- org.typelevel:cats-effect_3:3.5.7                  (depends on 3.2.2)
[info]      +- org.typelevel:cats-effect-std_3:3.5.7              (depends on 3.2.2)
[info]      +- org.typelevel:cats-effect-kernel_3:3.5.7           (depends on 3.2.2)
[info]      +- org.typelevel:cats-core_3:2.12.0                   (depends on 3.3.3)
[info]      +- org.tpolecat:typename_3:1.1.0                      (depends on 3.2.2)
[info]      +- org.tpolecat:doobie-postgres_3:1.0.0-RC4           (depends on 3.3.0)
[info]      +- org.tpolecat:doobie-hikari_3:1.0.0-RC4             (depends on 3.3.0)
[info]      +- org.tpolecat:doobie-h2_3:1.0.0-RC4                 (depends on 3.3.0)
[info]      +- org.tpolecat:doobie-free_3:1.0.0-RC4               (depends on 3.3.0)
[info]      +- org.tpolecat:doobie-core_3:1.0.0-RC4               (depends on 3.3.0)
[info]      +- org.scodec:scodec-bits_3:1.1.37                    (depends on 3.2.2)
[info]      +- org.scala-lang.modules:scala-xml_3:2.2.0           (depends on 3.3.0)
[info]      +- org.scala-lang.modules:scala-parser-combinators_3:2.3.0 (depends on 3.2.2)
[info]      +- org.playframework:play-json_3:3.0.4                (depends on 3.3.3)
[info]      +- org.playframework:play-functional_3:3.0.4          (depends on 3.3.3)
[info]      +- io.monix:monix-execution_3:3.4.0                   (depends on 3.0.0)
[info]      +- io.monix:implicitbox_3:0.3.4                       (depends on 3.0.0)
[info]      +- com.typesafe.play:twirl-api_3:1.6.8                (depends on 3.3.3)
[info]      +- com.typesafe.play:play_3:2.9.6                     (depends on 3.3.4)
[info]      +- com.typesafe.play:play-streams_3:2.9.6             (depends on 3.3.4)
[info]      +- com.typesafe.play:play-server_3:2.9.6              (depends on 3.3.4)
[info]      +- com.typesafe.play:play-logback_3:2.9.6             (depends on 3.3.4)
[info]      +- com.typesafe.play:play-json_3:2.10.6               (depends on 3.3.3)
[info]      +- com.typesafe.play:play-json-joda_3:2.10.6          (depends on 3.3.3)
[info]      +- com.typesafe.play:play-functional_3:2.10.6         (depends on 3.3.3)
[info]      +- com.typesafe.play:play-filters-helpers_3:2.9.6     (depends on 3.3.4)
[info]      +- com.typesafe.play:play-configuration_3:2.9.6       (depends on 3.3.4)
[info]      +- com.typesafe.play:play-akka-http-server_3:2.9.6    (depends on 3.3.4)
[info]      +- com.comcast:ip4s-core_3:3.3.0                      (depends on 3.2.2)
[info]      +- co.fs2:fs2-io_3:3.7.0                              (depends on 3.2.2)
[info]      +- co.fs2:fs2-core_3:3.9.1                            (depends on 3.3.0)

Este é o erro que enfrento:

[error] java.lang.RuntimeException: Conflicting cross-version suffixes in: org.typelevel:cats-kernel, org.typelevel:cats-core
[error]     at scala.sys.package$.error(package.scala:30)
[error]     at sbt.librarymanagement.ConflictWarning$.processCrossVersioned(ConflictWarning.scala:39)
[error]     at sbt.librarymanagement.ConflictWarning$.apply(ConflictWarning.scala:19)
[error]     at sbt.Classpaths$.$anonfun$ivyBaseSettings$71(Defaults.scala:3403)
[error]     at scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error]     at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:63)
[error]     at sbt.std.Transform$$anon$4.work(Transform.scala:69)
[error]     at sbt.Execute.$anonfun$submit$2(Execute.scala:283)
[error]     at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:24)
[error]     at sbt.Execute.work(Execute.scala:292)
[error]     at sbt.Execute.$anonfun$submit$1(Execute.scala:283)
[error]     at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:265)
[error]     at sbt.CompletionService$$anon$2.call(CompletionService.scala:65)
[error]     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
[error]     at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
[error]     at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
[error]     at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
[error]     at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
[error]     at java.base/java.lang.Thread.run(Thread.java:1583)
[error] (update) Conflicting cross-version suffixes in: org.typelevel:cats-kernel, org.typelevel:cats-core

Estas são minhas dependências:

libraryDependencies ++= Seq(
      // Add explicit Cats dependencies
      "org.typelevel" %% "cats-core" % catsVersion,
      "org.typelevel" %% "cats-kernel" % catsVersion,
      "org.typelevel" %% "cats-effect" % "3.5.7",

      // Database libraries
      "org.postgresql" %  "postgresql" % "42.3.1",
      "com.h2database" % "h2" % "1.4.199",

      "org.tpolecat" %% "doobie-core"     % doobieVersion exclude ("org.typelevel", "cats-core"),
      "org.tpolecat" %% "doobie-postgres" % doobieVersion,
      "org.tpolecat" %% "doobie-h2"       % doobieVersion,
      "org.tpolecat" %% "doobie-hikari"   % doobieVersion,

      "ch.qos.logback" % "logback-classic" % "1.2.6",

      "org.playframework" %% "play-json" % "3.0.4",
      "com.typesafe.play" %% "play-json-joda" % "2.10.6",

      // For caching and distributed caching
      //"com.github.cb372" %% "scalacache-core" % "0.28.0",
      //"com.github.cb372" %% "scalacache-guava" % "0.28.0",

      // For application Metrics
      "io.dropwizard.metrics" % "metrics-core" % dropWizardMetricsVersion,
      "io.dropwizard.metrics" % "metrics-jvm" % dropWizardMetricsVersion,

      // Threading & Streaming libraries (https://monix.io/docs/current/intro/usage.html)
      "io.monix" %% "monix-execution" % "3.4.0",
      "co.fs2" %% "fs2-core" % "3.9.1",

      // MQTT client
      "com.hivemq" % "hivemq-mqtt-client" % "1.3.3",

      // OCPP & OCPI Core libraries
      "com.openelectrons" %% "ocpp-j-api" % "0.0.1-SNAPSHOT",
      "com.openelectrons" %% "ocpp-messages" % "0.0.1-SNAPSHOT",
      "com.openelectrons" %% "ocpiv22-messages" % "0.0.1-SNAPSHOT",
      "com.openelectrons" %% "ocpiv22-api" % "0.0.1-SNAPSHOT",

      // Test libraries
      "org.scalatestplus.play" %% "scalatestplus-play" % "7.0.1" % Test exclude ("org.slf4j", "slf4j-simple"),
      "org.specs2" %% "specs2-core" % "4.20.0" % Test,
      "org.scalacheck" %% "scalacheck" % "1.18.1" % Test,
      "org.testcontainers" % "hivemq" % "1.19.7" % Test,
      "com.dimafeng" %% "testcontainers-scala-scalatest" % "0.41.3" % Test,
      "com.dimafeng" %% "testcontainers-scala-postgresql" % "0.41.0" % Test
      // https://github.com/DanielaSfregola/random-data-generator
      //"com.danielasfregola" %% "random-data-generator" % "2.9" % Test
    )

Eu tenho uma imagem Postgres executando meu banco de dados e executo-a como um contêiner Docker e posso me conectar a ela a partir do psql, mas quando me conecto a ela a partir do meu servidor de aplicativos, recebo o seguinte erro:

org.postgresql.util.PSQLException: Connection to localhost:5432 refused. Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
cpo-platform-server-cpo-platform-1  |   at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:342)
cpo-platform-server-cpo-platform-1  |   at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:54)
cpo-platform-server-cpo-platform-1  |   at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:263)
cpo-platform-server-cpo-platform-1  |   at org.postgresql.Driver.makeConnection(Driver.java:443)
cpo-platform-server-cpo-platform-1  |   at org.postgresql.Driver.connect(Driver.java:297)
cpo-platform-server-cpo-platform-1  |   at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:677)
cpo-platform-server-cpo-platform-1  |   at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:228)
cpo-platform-server-cpo-platform-1  |   at doobie.util.transactor$Transactor$FromDriverManagerUnapplied.$anonfun$apply$19(transactor.scala:378)
cpo-platform-server-cpo-platform-1  |   at doobie.util.transactor$Transactor$FromDriverManagerUnapplied.$anonfun$create$2(transactor.scala:347)
cpo-platform-server-cpo-platform-1  |   at blocking @ doobie.util.transactor$Transactor$FromDriverManagerUnapplied.$anonfun$create$1(transactor.scala:347)
cpo-platform-server-cpo-platform-1  |   at fromAutoCloseable @ doobie.util.transactor$Transactor$FromDriverManagerUnapplied.$anonfun$create$1(transactor.scala:347)
cpo-platform-server-cpo-platform-1  |   at fromAutoCloseable @ doobie.util.transactor$Transactor$FromDriverManagerUnapplied.$anonfun$create$1(transactor.scala:347)
cpo-platform-server-cpo-platform-1  |   at use @ doobie.util.transactor$Transactor$$anon$4.apply(transactor.scala:164)

Há algo que devo observar ao conectar-me de um contêiner Docker onde meu servidor de aplicativos está sendo executado para outro contêiner Docker onde meu banco de dados está sendo executado? Eu uso o docker compose para iniciar os dois assim:

services:
  my-app:
    image: me/my-app-server:1.1-SNAPSHOT
    ports:
      - 127.0.0.1:9000:9000
    environment:
      configEnv: test

  my-db:
    image: my-db-postgres-test-container
    ports:
      - 127.0.0.1:5432:5432

Depois de iniciar, posso me conectar ao banco de dados usando o psql, mas a conexão por meio do meu servidor de aplicativos falha. As credenciais, servidor de banco de dados etc. estão todos configurados corretamente, mas ainda assim não se conectam.

Alguma ideia?