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ContainerGebSpec.download* methods fails with UnknownHostException #72

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matrei opened this issue Nov 8, 2024 · 1 comment · May be fixed by #74
Open

ContainerGebSpec.download* methods fails with UnknownHostException #72

matrei opened this issue Nov 8, 2024 · 1 comment · May be fixed by #74

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@matrei
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matrei commented Nov 8, 2024 

Caused by: java.net.UnknownHostException: host.testcontainers.internal
	at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:572)
	at java.base/java.net.Socket.connect(Socket.java:633)
	at java.base/java.net.Socket.connect(Socket.java:583)
	at java.base/sun.net.NetworkClient.doConnect(NetworkClient.java:183)
	at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:533)
	at java.base/sun.net.www.http.HttpClient.openServer(HttpClient.java:638)
	at java.base/sun.net.www.http.HttpClient.<init>(HttpClient.java:281)
	at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:386)
	at java.base/sun.net.www.http.HttpClient.New(HttpClient.java:408)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1323)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1256)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1142)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:1071)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1701)
	at java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1625)
	at geb.download.DefaultDownloadSupport.downloadStream_closure1(DefaultDownloadSupport.groovy:73)
	at geb.download.DefaultDownloadSupport.wrapInDownloadException(DefaultDownloadSupport.groovy:221)
	... 3 more
@matrei
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matrei commented Nov 11, 2024 •
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The reason for this is that the connections from the download*() methods are not made from within the container. They are made from the host system.

You can override the base and uri directly when invoking the method, to make it work:

downloadBytes([base: "http://localhost:$serverPort", uri: '/json/index'])

However, this is not the best user experience.

I have not yet found a way to switch out the default DownloadSupport implementation DefaultDownloadSupport, to another implementation that resolves the URI:s correctly when using ContainerGebSpec.

matrei added a commit that referenced this issue Nov 11, 2024
@matrei
fix: download*() methods work
848112b 
There must be a more elegant way to solve this, but this seems to work.

Resolves gh-72
matrei added a commit that referenced this issue Nov 11, 2024
@matrei
fix: download*() methods work
e421833 
There must be a more elegant way to solve this, but this seems to work.

Resolves gh-72
@matrei matrei linked a pull request Nov 11, 2024 that will close this issue
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fix: download*() methods work grails/geb
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@matrei