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8 posts tagged with "docker"

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使用kind创建一个k8s集群

· 5 min read
orange
orange
programmer on jvm platform

kind是一个用于创建k8s集群的工具, 它使用docker容器作为节点, 可以快速创建一个k8s集群, 用于测试或者开发.
官方提供了相应的文档Ingress, 在使用该文档的时候出现了一些问题.
本文基于官方文档并作出了一定的修改介绍如何使用kind创建一个k8s集群, 并在集群中部署kong-ingress.最后部署一个测试应用并通过 kong-ingress访问该应用.

使用aliyundrive-webdav和rclone实现阿里云盘文件挂载到本地

· 2 min read
orange
orange
programmer on jvm platform

aliyun-webdav是一个开源的工具, 可以为阿里云盘提供WebDAV服务.
rclone是一个开源的工具, 可以将本地文件同步到各种云存储服务中, 包括但不限于

  • S3
  • WebDAV
  • FTP
  • SFTP
  • ...

以下将介绍如何使用aliyun-webdav搭配rclone实现将本地文件同步到阿里云盘.
本案例是基于ubuntu实现的, 方案使用到了docker因此理论上可以在任何支持docker的系统中实现.

在TestContainers中实现配置的容器hostname以解决容器之间访问问题

· One min read
orange
orange
programmer on jvm platform

在使用TestContainers启动容器时, 可能会存在容器之间依赖的情况.
如果其中一个容器依赖于另外一个容器, 那么需要在启动被依赖的容器时, 指定hostname.
这样有依赖需求的容器可以直接通过hostname来访问被依赖的容器.
以便于被依赖的容器能够正确的解析依赖容器的hostname. 下面将介绍如何在TestContainers中实现配置的容器hostname以解决容器之间访问问题.

在TestContainers中实现Docker registry认证

· 2 min read
orange
orange
programmer on jvm platform

在docker registry配置了认证后, 项目中CICD中运行的test case失败, 错误日志如下

Caused by: org.testcontainers.containers.ContainerFetchException: Can't get Docker image: RemoteDockerImage(imageName=hub.fastonetech.com/cce/fastone-auditing:latest, imagePullPolicy=AlwaysPullPolicy(), imageNameSubstitutor=org.testcontainers.utility.ImageNameSubstitutor$LogWrappedImageNameSubstitutor@3b68a50c)
	at app//org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:1371)
	at app//org.testcontainers.containers.GenericContainer.logger(GenericContainer.java:651)
	at app//org.testcontainers.containers.GenericContainer.doStart(GenericContainer.java:331)
	... 153 more
Caused by: org.testcontainers.containers.ContainerFetchException: Failed to pull image: hub.fastonetech.com/cce/fastone-auditing:latest
	at app//org.testcontainers.images.RemoteDockerImage.resolve(RemoteDockerImage.java:119)
	at app//org.testcontainers.images.RemoteDockerImage.resolve(RemoteDockerImage.java:28)
	at app//org.testcontainers.utility.LazyFuture.getResolvedValue(LazyFuture.java:17)
	at app//org.testcontainers.utility.LazyFuture.get(LazyFuture.java:39)
	at app//org.testcontainers.containers.GenericContainer.getDockerImageName(GenericContainer.java:1369)
	... 155 more
Caused by: com.github.dockerjava.api.exception.InternalServerErrorException: Status 500: {"message":"unauthorized: unauthorized to access repository: cce/fastone-auditing, action: pull: unauthorized to access repository: cce/fastone-auditing, action: pull"}

	at app//org.testcontainers.shaded.com.github.dockerjava.core.DefaultInvocationBuilder.execute(DefaultInvocationBuilder.java:247)
	at app//org.testcontainers.shaded.com.github.dockerjava.core.DefaultInvocationBuilder.lambda$executeAndStream$1(DefaultInvocationBuilder.java:269)
	at java.base@17.0.1/java.lang.Thread.run(Thread.java:833)

TestContainers启动完fastone-auditing容器后客户端连接报错

· 6 min read
orange
orange
programmer on jvm platform

TestContainers启动完容器后客户端连接报错

feign.RetryableException: Connection reset executing GET http://localhost:32772/javers/api/v1/snapshots?page=0&size=1&sort=commitMetadata.id%2CDESC

关键cause如下

Caused by: java.net.SocketException: Connection reset
	at java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:323)
	at java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:350)
	at java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:803)
	at java.base/java.net.Socket$SocketInputStream.read(Socket.java:966)
	at org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:137)
	at org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:153)
	at org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:280)
	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:138)
	at org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56)
	at org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259)
	at org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163)
	at org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:157)
	at org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273)
	at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
	at feign.httpclient.ApacheHttpClient.execute(ApacheHttpClient.java:81)
	at feign.SynchronousMethodHandler.executeAndDecode(SynchronousMethodHandler.java:121)
	... 101 more