I am trying to deploy the zalenium helm chart in my newly deployed aks Kuberbetes (1.9.6) cluster in Azure. But I don't get it to work. The pod is giving the log below:
[bram@xforce zalenium]$ kubectl logs -f zalenium-zalenium-hub-6bbd86ff78-m25t2 Kubernetes service account found. Copying files for Dashboard... cp: cannot create regular file '/home/seluser/videos/index.html': Permission denied cp: cannot create directory '/home/seluser/videos/css': Permission denied cp: cannot create directory '/home/seluser/videos/js': Permission denied Starting Nginx reverse proxy... Starting Selenium Hub... ..........08:49:14.052 [main] INFO o.o.grid.selenium.GridLauncherV3 - Selenium build info: version: '3.12.0', revision: 'unknown' 08:49:14.120 [main] INFO o.o.grid.selenium.GridLauncherV3 - Launching Selenium Grid hub on port 4445 ...08:49:15.125 [main] INFO d.z.e.z.c.k.KubernetesContainerClient - Initialising Kubernetes support ..08:49:15.650 [main] WARN d.z.e.z.c.k.KubernetesContainerClient - Error initialising Kubernetes support. io.fabric8.kubernetes.client.KubernetesClientException: Operation: [get] for kind: [Pod] with name: [zalenium-zalenium-hub-6bbd86ff78-m25t2] in namespace: [default] failed. at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:62) at io.fabric8.kubernetes.client.KubernetesClientException.launderThrowable(KubernetesClientException.java:71) at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:206) at io.fabric8.kubernetes.client.dsl.base.BaseOperation.get(BaseOperation.java:162) at de.zalando.ep.zalenium.container.kubernetes.KubernetesContainerClient.(KubernetesContainerClient.java:87) at de.zalando.ep.zalenium.container.ContainerFactory.createKubernetesContainerClient(ContainerFactory.java:35) at de.zalando.ep.zalenium.container.ContainerFactory.getContainerClient(ContainerFactory.java:22) at de.zalando.ep.zalenium.proxy.DockeredSeleniumStarter.(DockeredSeleniumStarter.java:59) at de.zalando.ep.zalenium.registry.ZaleniumRegistry.(ZaleniumRegistry.java:74) at de.zalando.ep.zalenium.registry.ZaleniumRegistry.(ZaleniumRegistry.java:62) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at java.lang.Class.newInstance(Class.java:442) at org.openqa.grid.web.Hub.(Hub.java:93) at org.openqa.grid.selenium.GridLauncherV3$2.launch(GridLauncherV3.java:291) at org.openqa.grid.selenium.GridLauncherV3.launch(GridLauncherV3.java:122) at org.openqa.grid.selenium.GridLauncherV3.main(GridLauncherV3.java:82) Caused by: javax.net.ssl.SSLPeerUnverifiedException: Hostname kubernetes.default.svc not verified: certificate: sha256/OyzkRILuc6LAX4YnMAIGrRKLmVnDgLRvCasxGXDhSoc= DN: CN=client, O=system:masters subjectAltNames: [10.0.0.1] at okhttp3.internal.connection.RealConnection.connectTls(RealConnection.java:308) at okhttp3.internal.connection.RealConnection.establishProtocol(RealConnection.java:268) at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:160) at okhttp3.internal.connection.StreamAllocation.findConnection(StreamAllocation.java:256) at okhttp3.internal.connection.StreamAllocation.findHealthyConnection(StreamAllocation.java:134) at okhttp3.internal.connection.StreamAllocation.newStream(StreamAllocation.java:113) at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:42) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:125) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at io.fabric8.kubernetes.client.utils.ImpersonatorInterceptor.intercept(ImpersonatorInterceptor.java:56) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at io.fabric8.kubernetes.client.utils.HttpClientUtils$2.intercept(HttpClientUtils.java:107) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:147) at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:121) at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:200) at okhttp3.RealCall.execute(RealCall.java:77) at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:379) at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleResponse(OperationSupport.java:344) at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:313) at io.fabric8.kubernetes.client.dsl.base.OperationSupport.handleGet(OperationSupport.java:296) at io.fabric8.kubernetes.client.dsl.base.BaseOperation.handleGet(BaseOperation.java:770) at io.fabric8.kubernetes.client.dsl.base.BaseOperation.getMandatory(BaseOperation.java:195) ... 16 common frames omitted 08:49:15.651 [main] INFO d.z.e.z.c.k.KubernetesContainerClient - About to clean up any left over selenium pods created by Zalenium Usage: [options] Options: --debug, -debug : enables LogLevel.FINE. Default: false --version, -version Displays the version and exits. Default: false -browserTimeout in seconds : number of seconds a browser session is allowed to hang while a WebDriver command is running (example: driver.get(url)). If the timeout is reached while a WebDriver command is still processing, the session will quit. Minimum value is 60. An unspecified, zero, or negative value means wait indefinitely. -matcher, -capabilityMatcher class name : a class implementing the CapabilityMatcher interface. Specifies the logic the hub will follow to define whether a request can be assigned to a node. For example, if you want to have the matching process use regular expressions instead of exact match when specifying browser version. ALL nodes of a grid ecosystem would then use the same capabilityMatcher, as defined here. -cleanUpCycle in ms : specifies how often the hub will poll running proxies for timed-out (i.e. hung) threads. Must also specify "timeout" option -custom : comma separated key=value pairs for custom grid extensions. NOT RECOMMENDED -- may be deprecated in a future revision. Example: -custom myParamA=Value1,myParamB=Value2 -host IP or hostname : usually determined automatically. Most commonly useful in exotic network configurations (e.g. network with VPN) Default: 0.0.0.0 -hubConfig filename: a JSON file (following grid2 format), which defines the hub properties -jettyThreads, -jettyMaxThreads : max number of threads for Jetty. An unspecified, zero, or negative value means the Jetty default value (200) will be used. -log filename : the filename to use for logging. If omitted, will log to STDOUT -maxSession max number of tests that can run at the same time on the node, irrespective of the browser used -newSessionWaitTimeout in ms : The time after which a new test waiting for a node to become available will time out. When that happens, the test will throw an exception before attempting to start a browser. An unspecified, zero, or negative value means wait indefinitely. Default: 600000 -port : the port number the server will use. Default: 4445 -prioritizer class name : a class implementing the Prioritizer interface. Specify a custom Prioritizer if you want to sort the order in which new session requests are processed when there is a queue. Default to null ( no priority = FIFO ) -registry class name : a class implementing the GridRegistry interface. Specifies the registry the hub will use. Default: de.zalando.ep.zalenium.registry.ZaleniumRegistry -role options are [hub], [node], or [standalone]. Default: hub -servlet, -servlets : list of extra servlets the grid (hub or node) will make available. Specify multiple on the command line: -servlet tld.company.ServletA -servlet tld.company.ServletB. The servlet must exist in the path: /grid/admin/ServletA /grid/admin/ServletB -timeout, -sessionTimeout in seconds : Specifies the timeout before the server automatically kills a session that hasn't had any activity in the last X seconds. The test slot will then be released for another test to use. This is typically used to take care of client crashes. For grid hub/node roles, cleanUpCycle must also be set. -throwOnCapabilityNotPresent true or false : If true, the hub will reject all test requests if no compatible proxy is currently registered. If set to false, the request will queue until a node supporting the capability is registered with the grid. -withoutServlet, -withoutServlets : list of default (hub or node) servlets to disable. Advanced use cases only. Not all default servlets can be disabled. Specify multiple on the command line: -withoutServlet tld.company.ServletA -withoutServlet tld.company.ServletB org.openqa.grid.common.exception.GridConfigurationException: Error creating class with de.zalando.ep.zalenium.registry.ZaleniumRegistry : null at org.openqa.grid.web.Hub.(Hub.java:97) at org.openqa.grid.selenium.GridLauncherV3$2.launch(GridLauncherV3.java:291) at org.openqa.grid.selenium.GridLauncherV3.launch(GridLauncherV3.java:122) at org.openqa.grid.selenium.GridLauncherV3.main(GridLauncherV3.java:82) Caused by: java.lang.ExceptionInInitializerError at de.zalando.ep.zalenium.registry.ZaleniumRegistry.(ZaleniumRegistry.java:74) at de.zalando.ep.zalenium.registry.ZaleniumRegistry.(ZaleniumRegistry.java:62) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at java.lang.Class.newInstance(Class.java:442) at org.openqa.grid.web.Hub.(Hub.java:93) ... 3 more Caused by: java.lang.NullPointerException at java.util.TreeMap.putAll(TreeMap.java:313) at io.fabric8.kubernetes.client.dsl.base.BaseOperation.withLabels(BaseOperation.java:411) at io.fabric8.kubernetes.client.dsl.base.BaseOperation.withLabels(BaseOperation.java:48) at de.zalando.ep.zalenium.container.kubernetes.KubernetesContainerClient.deleteSeleniumPods(KubernetesContainerClient.java:393) at de.zalando.ep.zalenium.container.kubernetes.KubernetesContainerClient.initialiseContainerEnvironment(KubernetesContainerClient.java:339) at de.zalando.ep.zalenium.container.ContainerFactory.createKubernetesContainerClient(ContainerFactory.java:38) at de.zalando.ep.zalenium.container.ContainerFactory.getContainerClient(ContainerFactory.java:22) at de.zalando.ep.zalenium.proxy.DockeredSeleniumStarter.(DockeredSeleniumStarter.java:59) ... 11 more ...........................................................................................................................................................................................GridLauncher failed to start after 1 minute, failing... % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 182 100 182 0 0 36103 0 --:--:-- --:--:-- --:--:-- 45500
A describe pod gives: Warning Unhealthy 4m (x12 over 6m) kubelet, aks-agentpool-93668098-0 Readiness probe failed: HTTP probe failed with statuscode: 502
Zalenium Image Version(s): dosel/zalenium:3
If using Kubernetes, specify your environment, and if relevant your manifests: I use the templates as is from https://github.com/zalando/zalenium/tree/master/docs/k8s/helm
I guess it has to do something with rbac because of this part "Error initialising Kubernetes support. io.fabric8.kubernetes.client.KubernetesClientException: Operation: [get] for kind: [Pod] with name: [zalenium-zalenium-hub-6bbd86ff78-m25t2] in namespace: [default] failed. at "
I created a clusterrole and clusterrolebinding for the service account zalenium-zalenium that is automatically created by the Helm chart.
kubectl create clusterrole zalenium --verb=get,list,watch,update,delete,create,patch --resource=pods,deployments,secrets
kubectl create clusterrolebinding zalenium --clusterrole=zalnium --serviceaccount=zalenium-zalenium --namespace=default
If the typo, mentioned by Ignacio, is not the case why don't you just do
kubectl create clusterrolebinding zalenium --clusterrole=cluster-admin serviceaccount=zalenium-zalenium
Note: no need to specify a namespace if creating cluster role binding, as it is cluster wide (role binding goes with namespaces).
Issue had to do with Azure's AKS and Kubernetes. It has been fixed. See github issue 399