Securing thorntail service with KEYCLOAK - vuejs2

Question

I see a lot of topics about this but it seems that all of them access KEYCLOAK with the same URL.
Explanation. I try to set up a frontend+microservice secured by KC architecture.
See the drawing:
Everything work well if keycloak (kc) is seen by everybody with the same url, that is for JS:
const keycloakURL = "http://test-kc-keycloak:8080/auth";
const keycloakParams = {
url: keycloakURL,
realm: "Test",
clientId: "IHM"
};
const keycloak = Keycloak(keycloakParams);
...
For the service (project-default.yml):
thorntail:
keycloak:
secure-deployments:
kc.war:
auth-server-url: "http://test-kc-keycloak:8080/auth"
realm: Test
resource: service
bearer-only: true
ssl-required: external
microprofile:
jwtauth:
realm: Test
token:
issuedBy: "http://test-kc-keycloak:8080/auth/realms/Test"
logging:
loggers:
kc:
level: DEBUG
See https://github.com/lbroque/test-kc
But in the real world, the frontend is in the dark side of the net while KC and the service is supposed to be in a protected environment. So the frontend see KC through a reverse proxy and a HTTPS scheme, while the service see it with an HTTP scheme.
As far as I can see, the service try to access KC with SSL:
10:37:51,102 ERROR [adapters.rotation.JWKPublicKeyLocator] (default task-1) :
>>> Error when sending request to retrieve realm keys: org.keycloak.adapters.HttpClientAdapterException: IO error
at org.keycloak.adapters.HttpAdapterUtils.sendJsonHttpRequest(HttpAdapterUtils.java:57)
at org.keycloak.adapters.rotation.JWKPublicKeyLocator.sendRequest(JWKPublicKeyLocator.java:99)
at org.keycloak.adapters.rotation.JWKPublicKeyLocator.getPublicKey(JWKPublicKeyLocator.java:63)
at org.keycloak.adapters.rotation.AdapterTokenVerifier.getPublicKey(AdapterTokenVerifier.java:121)
at org.keycloak.adapters.rotation.AdapterTokenVerifier.createVerifier(AdapterTokenVerifier.java:111)
at org.keycloak.adapters.rotation.AdapterTokenVerifier.verifyToken(AdapterTokenVerifier.java:47)
at org.wildfly.swarm.keycloak.mpjwt.deployment.KeycloakJWTCallerPrincipalFactory.parse(KeycloakJWTCallerPrincipalFactory.java:26)
at org.wildfly.swarm.microprofile.jwtauth.deployment.auth.jaas.JWTLoginModule.validate(JWTLoginModule.java:100)
at org.wildfly.swarm.microprofile.jwtauth.deployment.auth.jaas.JWTLoginModule.login(JWTLoginModule.java:65)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at javax.security.auth.login.LoginContext.invoke(LoginContext.java:755)
at javax.security.auth.login.LoginContext.access$000(LoginContext.java:195)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:682)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
at javax.security.auth.login.LoginContext.login(LoginContext.java:587)
at org.jboss.security.authentication.JBossCachedAuthenticationManager.defaultLogin(JBossCachedAuthenticationManager.java:406)
at org.jboss.security.authentication.JBossCachedAuthenticationManager.proceedWithJaasLogin(JBossCachedAuthenticationManager.java:345)
at org.jboss.security.authentication.JBossCachedAuthenticationManager.authenticate(JBossCachedAuthenticationManager.java:323)
at org.jboss.security.authentication.JBossCachedAuthenticationManager.isValid(JBossCachedAuthenticationManager.java:146)
at org.wildfly.extension.undertow.security.JAASIdentityManagerImpl.verifyCredential(JAASIdentityManagerImpl.java:123)
at org.wildfly.extension.undertow.security.JAASIdentityManagerImpl.verify(JAASIdentityManagerImpl.java:96)
at org.wildfly.swarm.microprofile.jwtauth.deployment.auth.JWTAuthMechanism.authenticate(JWTAuthMechanism.java:77)
at org.wildfly.extension.undertow.security.jaspi.modules.HTTPSchemeServerAuthModule.validateRequest(HTTPSchemeServerAuthModule.java:88)
at org.jboss.security.auth.message.config.JBossServerAuthContext.invokeModules(JBossServerAuthContext.java:157)
at org.jboss.security.auth.message.config.JBossServerAuthContext.validateRequest(JBossServerAuthContext.java:135)
at org.jboss.security.plugins.auth.JASPIServerAuthenticationManager.isValid(JASPIServerAuthenticationManager.java:115)
at org.wildfly.extension.undertow.security.jaspi.JASPICAuthenticationMechanism.authenticate(JASPICAuthenticationMechanism.java:125)
at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.transition(SecurityContextImpl.java:245)
at io.undertow.security.impl.SecurityContextImpl$AuthAttempter.access$100(SecurityContextImpl.java:231)
at io.undertow.security.impl.SecurityContextImpl.attemptAuthentication(SecurityContextImpl.java:125)
at io.undertow.security.impl.SecurityContextImpl.authTransition(SecurityContextImpl.java:99)
at io.undertow.security.impl.SecurityContextImpl.authenticate(SecurityContextImpl.java:92)
at io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:55)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:46)
at io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:64)
at io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:60)
at io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:77)
at io.undertow.security.handlers.NotificationReceiverHandler.handleRequest(NotificationReceiverHandler.java:50)
at io.undertow.security.handlers.AbstractSecurityContextAssociationHandler.handleRequest(AbstractSecurityContextAssociationHandler.java:43)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at org.wildfly.extension.undertow.security.jaspi.JASPICSecureResponseHandler.handleRequest(JASPICSecureResponseHandler.java:48)
at org.wildfly.extension.undertow.deployment.GlobalRequestControllerHandler.handleRequest(GlobalRequestControllerHandler.java:68)
at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:269)
at io.undertow.servlet.handlers.ServletInitialHandler.access$100(ServletInitialHandler.java:78)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:133)
at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:130)
at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48)
at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43)
at org.wildfly.extension.undertow.security.SecurityContextThreadSetupAction.lambda$create$0(SecurityContextThreadSetupAction.java:105)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentInfoService$UndertowThreadSetupAction.lambda$create$0(UndertowDeploymentInfoService.java:1504)
at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:249)
at io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:78)
at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:99)
at io.undertow.server.Connectors.executeRootHandler(Connectors.java:376)
at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:830)
at org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
at java.lang.Thread.run(Thread.java:748)
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1946)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:316)
at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:310)
at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1639)
at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:223)
at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1037)
at sun.security.ssl.Handshaker.process_record(Handshaker.java:965)
at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1064)
at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1367)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1395)
at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1379)
at org.apache.http.conn.ssl.SSLSocketFactory.createLayeredSocket(SSLSocketFactory.java:573)
at org.keycloak.adapters.SniSSLSocketFactory.createLayeredSocket(SniSSLSocketFactory.java:114)
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:557)
at org.keycloak.adapters.SniSSLSocketFactory.connectSocket(SniSSLSocketFactory.java:109)
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:414)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180)
at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144)
at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445)
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835)
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 org.keycloak.adapters.HttpAdapterUtils.sendJsonHttpRequest(HttpAdapterUtils.java:36)
... 72 more
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:397)
at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:302)
at sun.security.validator.Validator.validate(Validator.java:262)
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:1621)
... 94 more
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
at sun.security.provider.certpath.SunCertPathBuilder.build(SunCertPathBuilder.java:141)
at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(SunCertPathBuilder.java:126)
at java.security.cert.CertPathBuilder.build(CertPathBuilder.java:280)
at sun.security.validator.PKIXValidator.doBuild(PKIXValidator.java:392)
... 100 more
meaning it tries with the https scheme, No? so I suppose it uses the URL found in the TOKEN sent by frontend which got it with the HTTPS scheme, because I configured my service (so it should use HTTP scheme):
thorntail:
keycloak:
secure-deployments:
model4xxx.war:
auth-server-url: "http://keycloak.hnr:9090/auth"
realm: xxx
resource: model4xxx
bearer-only: true
ssl-required: external
microprofile:
jwtauth:
realm: xxx
token:
issuedBy: "http://keycloak.hnr:9090/auth/realms/xxxx"
Last point : KC is in a DOCKER container. I tried several combinations of env variables KEYCLOAK_FRONTEND_URL, KEYCLOAK_HOSTNAME. It doesn't seem to have any effect.
I think I didn't understand the purpose of auth-server-url. What the use if the information could be found in the token ????
I'm sure it is something very very obvious that I don't see or understood ... please help.

Answer 1

You can't access the Keycloak instance both from HTTP and HTTPS (or different urls) for clients in the same realm. The auth-server-url, which belongs to the token issuer needs to be the same, this is checked by the different adapters.
THIS SEEMS TO BE UNTIL KEYCLOAK VERSION 8, HOWEVER
Your question seems to be mirrored in this JIRA ticket and the Keycloak team does have a solution for this, which is documented in this draft and here. Probably you can tune your keycloak docker image a bit and add this configuration, so think if it deserves for you doing that or accessing the Keycloak server externally from your service.
See also:
Invalid token issuer when running keycloak behind proxy
Keycloak issuer validation and multi-tenancy approach
HTTP and HTTPS with keycloack + spring

Answer 2

Champagne !
With this conf (project-defauls.yml) :
thorntail:
keycloak:
secure-deployments:
model4geo3d.war:
auth-server-url: "http://keycloak.hnr:9090/auth"
realm: xxxx
resource: model4xxx
bearer-only: true
ssl-required: external
microprofile:
jwtauth:
realm: xxx
token:
issuedBy: "https://keycloak.hnr/auth/realms/xxxx"
And :
- "KEYCLOAK_FRONTEND_URL=https://keycloak.hnr/auth/"
- "PROXY_ADDRESS_FORWARDING=true"
in docker-compose of the keycloak container (keycloak.environment)
And
keytool -import -trustcacerts -keystore /etc/ssl/certs/java/cacerts -storepass 'changeit' -file /home/core/dota/keycloak.hnr.crt -alias keycloak
in the container of the data service, it works great.
2020-05-06 17:41:56,582 INFO [org.keycloak.adapters.KeycloakDeployment] (default task-1) Loaded URLs from http://keycloak.hnr:9090/auth/realms/xxxx/.well-known/openid-configuration
got a correct config that it could use :)
Thanks to Xtreme Biker for his help and time.