swagger-api / swagger-api/swagger-codegen

Cli unable to pull from localhost on host machine

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Description

Description

No matter what the combination of network settings and ip/dns used there is no way to have the cli call out to the host for a swagger.json served up from the host.

Swagger-codegen version

Image latest: 85a9099f948931c7f35b15223ecc86df4be84098a44636763b1c88d3646231c0

Command line used for generation

docker run --rm --network host -v C:\dev\projects:/local swaggerapi/swagger-codegen-cli generate -i https://localhost:7111/swagger/v1/swagger.json -l typescript-angular -o /local/api-swagger-client/src

It seems like a docker network issue, but all attempts

Using host IP
Using host.docker.internal
Using bridge network
Exposing Ports
Plus many more have all failed

Steps to reproduce

Create a service on the host machine and start it.
Test the call to swagger on the host
Try running the command to swagger-codegen-cli

Error:

[main] INFO io.swagger.parser.Swagger20Parser - reading from https://localhost:7111/swagger/v1/swagger.json
[main] ERROR io.swagger.parser.util.RemoteUrl - unable to read
java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
        at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
        at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)
        at io.swagger.parser.util.RemoteUrl.urlToString(RemoteUrl.java:136)
        at io.swagger.parser.Swagger20Parser.read(Swagger20Parser.java:95)
        at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:86)
        at io.swagger.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:452)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:305)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)
[main] INFO io.swagger.parser.Swagger20Parser - reading from https://localhost:7111/swagger/v1/swagger.json
[main] ERROR io.swagger.parser.util.RemoteUrl - unable to read
java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
        at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
        at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)
        at io.swagger.parser.util.RemoteUrl.urlToString(RemoteUrl.java:136)
        at io.swagger.parser.Swagger20Parser.read(Swagger20Parser.java:95)
        at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:105)
        at io.swagger.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:452)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:305)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)
[main] ERROR io.swagger.parser.util.RemoteUrl - unable to read
java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
        at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
        at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)
        at io.swagger.parser.util.RemoteUrl.urlToString(RemoteUrl.java:136)
        at io.swagger.parser.SwaggerCompatConverter.readResourceListing(SwaggerCompatConverter.java:192)
        at io.swagger.parser.SwaggerCompatConverter.read(SwaggerCompatConverter.java:122)
        at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:105)
        at io.swagger.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:452)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:305)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)
[main] ERROR io.swagger.parser.SwaggerCompatConverter - failed to read resource listing
java.net.ConnectException: Connection refused (Connection refused)
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:589)
        at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:666)
        at sun.security.ssl.BaseSSLSocketImpl.connect(BaseSSLSocketImpl.java:173)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
        at sun.net.www.protocol.https.HttpsClient.<init>(HttpsClient.java:264)
        at sun.net.www.protocol.https.HttpsClient.New(HttpsClient.java:367)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.getNewHttpClient(AbstractDelegateHttpsURLConnection.java:191)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:177)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:162)
        at io.swagger.parser.util.RemoteUrl.urlToString(RemoteUrl.java:136)
        at io.swagger.parser.SwaggerCompatConverter.readResourceListing(SwaggerCompatConverter.java:192)
        at io.swagger.parser.SwaggerCompatConverter.read(SwaggerCompatConverter.java:122)
        at io.swagger.parser.SwaggerParser.read(SwaggerParser.java:105)
        at io.swagger.codegen.config.CodegenConfigurator.toClientOptInput(CodegenConfigurator.java:452)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:305)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)
[main] WARN io.swagger.codegen.ignore.CodegenIgnoreProcessor - Output directory does not exist, or is inaccessible. No file (.swagger-codegen-ignore) will be evaluated.
Exception in thread "main" java.lang.RuntimeException: missing swagger input or config!
        at io.swagger.codegen.DefaultGenerator.generate(DefaultGenerator.java:766)
        at io.swagger.codegen.cmd.Generate.run(Generate.java:307)
        at io.swagger.codegen.SwaggerCodegen.main(SwaggerCodegen.java:35)
Suggest a fix/enhancement
  • Add new parameters that allow the CLI to keep running to keep the container going so debugging and certificate management can be done
  • Update the Java CLI to allow adding a self signed cert to the trust store

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the Docker command against the host-served swagger.json and start with io.swagger.parser.util.RemoteUrl, SwaggerParser, and CodegenConfigurator.toClientOptInput from the reported stack trace. Compare the documented network and certificate behavior with the proposed CLI options; done means a supported host URL can be read and the requested client generation completes reliably.

Written by the indexing model from the issue text.

Assessment

Tech stack
docker, java
Domain
cli, networking
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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