Get error: permission denied when building docker image using jenkins - docker

Question

I configed a jenkins pipeline to build a project that get from github. But I got an error at step 2 - Build image. Then, I tried to add user admin (of jenkins) to group "docker", and I can run build command successfully without error when login by user admin in the kubernetes master vm, however still error with jenkins. I used blueocean plugin for creating the pipeline. Do you know how to fix this ?
UPDATE: Please see my jenkinsfile
pipeline {
environment {
registry = "192.168.64.162:5000/justme/myweb"
dockerImage = ""
}
agent any
stages {
stage('Checkout Source') {
steps {
git 'https://github.com/taibc/playjenkins.git'
}
}
stage('Build image') {
steps{
script {
dockerImage = docker.build registry + ":$BUILD_NUMBER"
}
}
}
stage('Push Image') {
steps{
script {
docker.withRegistry( "" ) {
dockerImage.push()
}
}
}
}
stage('Deploy App') {
steps {
script {
kubernetesDeploy(configs: "myweb.yaml", kubeconfigId: "mykubeconfig")
}
}
}
}
}

Answer 1

I resolve this problem by installing Jenkins to another server (not belong to kubernetes cluster). But, I got another problem when deploying app as the link: https://github.com/jenkinsci/kubernetes-cd-plugin/issues/122
Here my yaml file
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
labels:
app: myweb
name: myweb
spec:
replicas: 1
selector:
matchLabels:
app: myweb
template:
metadata:
labels:
app: myweb
spec:
containers:
- image: 192.168.94.162:5000/justme/myweb:1
imagePullPolicy: Always
name: myweb
---
apiVersion: v1
kind: Service
metadata:
labels:
app: myweb
name: myweb
spec:
ports:
- nodePort: 32223
port: 80
protocol: TCP
targetPort: 80
selector:
app: myweb
type: NodePort
Here my jenkinsscript
pipeline {
environment {
registry = "192.168.94.162:5000/justme/myweb"
dockerImage = ""
}
agent any
stages {
stage('Checkout Source') {
steps {
git 'https://github.com/taibc/playjenkins.git'
}
}
stage('Build image') {
steps{
script {
dockerImage = docker.build registry + ":$BUILD_NUMBER"
}
}
}
stage('Push Image') {
steps{
script {
docker.withRegistry( "" ) {
dockerImage.push()
}
}
}
}
stage('Deploy App') {
steps {
script {
kubernetesDeploy(configs: "myweb.yaml", kubeconfigId: "mykubeconfig")
}
}
}
}
}