LiuZeshan created FLINK-24212: --------------------------------- Summary: kerberos krb5.conf file is mounted as empty directory for customer file name Key: FLINK-24212 URL: https://issues.apache.org/jira/browse/FLINK-24212 Project: Flink Issue Type: Bug Components: Deployment / Kubernetes Affects Versions: 1.13.2, 1.13.1, 1.12.1 Reporter: LiuZeshan Fix For: 1.14.1 Attachments: mykrb5conf.yaml
>From [FLINK-18971],we can mount kerberos krb5 conf file to pod with path >/etc/krb5.conf,however if the krb5 conf file is not named krb5.conf (e.g named >mykrb5.conf),the mount path /etc/krb5.conf in pod will be an empty directory, >not the file the we expected. {code:java} root@mykrb5-conf-test-6dd5c76f87-vfwh5:/# ls /etc/krb5.conf/ -la total 8 drwxrwxrwx 2 root root 4096 Sep 8 10:42 . drwxr-xr-x 1 root root 4096 Sep 8 10:42 ..{code} The reason is that, the code in [KerberosMountDecrator#decroateFlinkPod|https://github.com/apache/flink/blob/7e91e82fca999ddefa7ebdf198b8cfd3b6998b8b/flink-kubernetes/src/main/java/org/apache/flink/kubernetes/kubeclient/decorators/KerberosMountDecorator.java#L110], we create the deployment like this: {code:java} volumeMounts: - mountPath: /etc/krb5.conf name: my-krb5conf-volume subPath: krb5.conf ... volumes: - configMap: defaultMode: 420 items: - key: mykrb5.conf path: mykrb5.conf name: my-krb5conf name: my-krb5conf-volume {code} path: mykrb5.conf should be set to const value "krb5.conf", not the file name that user provide. we can use the yaml description file attachment to reproduce the problem. [^mykrb5conf.yaml] -- This message was sent by Atlassian Jira (v8.3.4#803005)