Major I set up a Jenkins master on Azure container service (Kubernetes). I got a lot of warning since the Jenkins master was set up and never end:
Sep 15, 2017 8:33:23 AM hudson.TcpSlaveAgentListener$ConnectionHandler run WARNING: Connection #600 failed java.io.EOFException at java.io.DataInputStream.readFully(DataInputStream.java:197) at java.io.DataInputStream.readFully(DataInputStream.java:169) at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:213) Sep 15, 2017 8:33:23 AM hudson.TcpSlaveAgentListener$ConnectionHandler run WARNING: Connection #602 failed java.io.EOFException at java.io.DataInputStream.readFully(DataInputStream.java:197) at java.io.DataInputStream.readFully(DataInputStream.java:169) at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:213) Sep 15, 2017 8:33:27 AM hudson.TcpSlaveAgentListener$ConnectionHandler run WARNING: Connection #603 failed java.io.EOFException at java.io.DataInputStream.readFully(DataInputStream.java:197) at java.io.DataInputStream.readFully(DataInputStream.java:169) at hudson.TcpSlaveAgentListener$ConnectionHandler.run(TcpSlaveAgentListener.java:213)
Although there is a lot of warning, but everything is OK. I can even use Azure VM plugin to set up jnlp slaves.
I think this issue related to port: 50000 because if I expose port 50000 as a cluster port, there is no error. However, if I set port 50000 as LoadBalancer (we have to do this), the errors shows above.
Here is my kube files:
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
name: azdisk
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage: 5Gi
storageClassName: azuredisk
---
kind: Deployment
apiVersion: apps/v1beta1
metadata:
name: jenkins-1
spec:
replicas: 1
template:
metadata:
name: jenkins-1
labels:
app: jenkins-1
spec:
containers:
- name: jenkins-container
image: zackliu1995/jenkins
volumeMounts:
- name: azure
mountPath: /var/jenkins_home
securityContext:
privileged: true
ports:
- name: port8080
containerPort: 8080
protocol: TCP
- name: port50000
containerPort: 50000
protocol: TCP
- name: port22
containerPort: 22
volumes:
- name: azure
persistentVolumeClaim:
claimName: azdisk
---
apiVersion: v1
kind: Service
metadata:
name: jenkins-srv
spec:
selector:
app: jenkins-1
ports:
- name: http
port: 80
protocol: TCP
targetPort: 8080
- name: slave
port: 50000
protocol: TCP
targetPort: 50000
- name: ssh
port: 22
targetPort: 22
type: LoadBalancer
I tried official Jenkins image, it caused the same issue.
