org.eclipse.linuxtools.docker.core.DockerException: com.spotify.docker.client.DockerException: java.util.concurrent.ExecutionException: javax.ws.rs.ProcessingException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: signature check failed
	at org.eclipse.linuxtools.internal.docker.core.DockerConnection.listImages(DockerConnection.java:787)
	at org.eclipse.linuxtools.internal.docker.core.DockerConnection.getImages(DockerConnection.java:750)
	at org.eclipse.linuxtools.internal.docker.ui.views.DockerExplorerContentProvider$5.run(DockerExplorerContentProvider.java:241)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: com.spotify.docker.client.DockerException: java.util.concurrent.ExecutionException: javax.ws.rs.ProcessingException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: signature check failed
	at com.spotify.docker.client.DefaultDockerClient.propagate(DefaultDockerClient.java:1141)
	at com.spotify.docker.client.DefaultDockerClient.request(DefaultDockerClient.java:1072)
	at com.spotify.docker.client.DefaultDockerClient.listImages(DefaultDockerClient.java:354)
	at org.eclipse.linuxtools.internal.docker.core.DockerConnection.listImages(DockerConnection.java:780)
	... 3 more
Caused by: java.util.concurrent.ExecutionException: javax.ws.rs.ProcessingException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: signature check failed
	at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:306)
	at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:293)
	at jersey.repackaged.com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116)
	at com.spotify.docker.client.DefaultDockerClient.request(DefaultDockerClient.java:1070)
	... 5 more
Caused by: javax.ws.rs.ProcessingException: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: signature check failed
	at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:517)
	at org.glassfish.jersey.apache.connector.ApacheConnector$1.run(ApacheConnector.java:527)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at jersey.repackaged.com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293)
	at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:49)
	at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:45)
	at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:523)
	at org.glassfish.jersey.client.ClientRuntime$1.run(ClientRuntime.java:169)
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
	at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
	at org.glassfish.jersey.internal.Errors.process(Errors.java:315)
	at org.glassfish.jersey.internal.Errors.process(Errors.java:297)
	at org.glassfish.jersey.internal.Errors.process(Errors.java:267)
	at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:320)
	at org.glassfish.jersey.client.ClientRuntime$2.run(ClientRuntime.java:201)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: signature check failed
	at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
	at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)
	at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
	at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
	at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1506)
	at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
	at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)
	at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)
	at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)
	at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)
	at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)
	at org.apache.http.conn.ssl.SSLConnectionSocketFactory.createLayeredSocket(SSLConnectionSocketFactory.java:290)
	at org.apache.http.conn.ssl.SSLConnectionSocketFactory.connectSocket(SSLConnectionSocketFactory.java:259)
	at org.apache.http.impl.conn.HttpClientConnectionOperator.connect(HttpClientConnectionOperator.java:125)
	at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:319)
	at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:363)
	at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:219)
	at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
	at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
	at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
	at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
	at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:72)
	at org.glassfish.jersey.apache.connector.ApacheConnector.apply(ApacheConnector.java:469)
	... 20 more
Caused by: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: signature check failed
	at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:352)
	at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:260)
	at sun.security.validator.Validator.validate(Validator.java:260)
	at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)
	at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)
	at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)
	at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1488)
	... 39 more
Caused by: java.security.cert.CertPathValidatorException: signature check failed
	at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:135)
	at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:219)
	at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:140)
	at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79)
	at java.security.cert.CertPathValidator.validate(CertPathValidator.java:292)
	at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:347)
	... 45 more
Caused by: java.security.SignatureException: Signature does not match.
	at sun.security.x509.X509CertImpl.verify(X509CertImpl.java:424)
	at sun.security.provider.certpath.BasicChecker.verifySignature(BasicChecker.java:166)
	at sun.security.provider.certpath.BasicChecker.check(BasicChecker.java:147)
	at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:125)
	... 50 more

$ eval "$(vagrant service-manager env docker)"
$ docker ps
An error occurred trying to connect: Get https://10.1.2.2:2376/v1.20/containers/json: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "example.com")