Sunday, February 9, 2020

MicroK8s - deploy sample app

MicroK8s quick start guide 



Get nodes 

[dave@localhost ~]$ microk8s.kubectl get nodes

NAME                    STATUS   ROLES    AGE   VERSION

localhost.localdomain   Ready    <none>   24h   v1.17.2

 


Get services

[dave@localhost ~]$ microk8s.kubectl get services

NAME         TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)   AGE

kubernetes   ClusterIP   10.152.183.1   <none>        443/TCP   24h

 


[dave@localhost ~]$ microk8s.kubectl create deployment kubernetes-bootcamp --image=gcr.io/google-samples/kubernetes-bootcamp:v1

deployment.apps/kubernetes-bootcamp created

 

[dave@localhost ~]$ microk8s.kubectl get pods

NAME                                   READY   STATUS    RESTARTS   AGE

kubernetes-bootcamp-69fbc6f4cf-f2vvk   1/1     Running   0          41s

 

Get deployments

[dave@localhost ~]$ kubectl get deployments

NAME                  READY   UP-TO-DATE   AVAILABLE   AGE

kubernetes-bootcamp   1/1     1            1           7m12s

 


Get pod name 

[dave@localhost ~]$ export POD_NAME=$(kubectl get pods -o go-template --template '{{range .items}}{{.metadata.name}}{{"\n"}}{{end}}')

[dave@localhost ~]$ echo Name of the Pod: $POD_NAME

Name of the Pod: kubernetes-bootcamp-69fbc6f4cf-f2vvk

 


Describe pods
[dave@localhost ~]$ kubectl describe pods

Name:         kubernetes-bootcamp-69fbc6f4cf-f2vvk

Namespace:    default

Priority:     0

Node:         localhost.localdomain/192.168.0.116

Start Time:   Sun, 09 Feb 2020 08:53:15 +0100

Labels:       app=kubernetes-bootcamp

              pod-template-hash=69fbc6f4cf

Annotations:  <none>

Status:       Running

IP:           10.1.30.34

IPs:

  IP:           10.1.30.34

Controlled By:  ReplicaSet/kubernetes-bootcamp-69fbc6f4cf

Containers:

  kubernetes-bootcamp:

    Container ID:   containerd://e1c171143d299f88fb686f83e2fa2aae1cbe59e14cff53f4f332c2ccc2fb3f2e

    Image:          gcr.io/google-samples/kubernetes-bootcamp:v1

    Image ID:       gcr.io/google-samples/kubernetes-bootcamp@sha256:0d6b8ee63bb57c5f5b6156f446b3bc3b3c143d233037f3a2f00e279c8fcc64af

    Port:           <none>

    Host Port:      <none>

    State:          Running

      Started:      Sun, 09 Feb 2020 08:53:26 +0100

    Ready:          True

    Restart Count:  0

    Environment:    <none>

    Mounts:

      /var/run/secrets/kubernetes.io/serviceaccount from default-token-msp2q (ro)

Conditions:

  Type              Status

  Initialized       True 

  Ready             True 

  ContainersReady   True 

  PodScheduled      True 

Volumes:

  default-token-msp2q:

    Type:        Secret (a volume populated by a Secret)

    SecretName:  default-token-msp2q

    Optional:    false

QoS Class:       BestEffort

Node-Selectors:  <none>

Tolerations:     node.kubernetes.io/not-ready:NoExecute for 300s

                 node.kubernetes.io/unreachable:NoExecute for 300s

Events:

  Type    Reason     Age   From                            Message

  ----    ------     ----  ----                            -------

  Normal  Scheduled  11m   default-scheduler               Successfully assigned default/kubernetes-bootcamp-69fbc6f4cf-f2vvk to localhost.localdomain

  Normal  Pulling    11m   kubelet, localhost.localdomain  Pulling image "gcr.io/google-samples/kubernetes-bootcamp:v1"

  Normal  Pulled     11m   kubelet, localhost.localdomain  Successfully pulled image "gcr.io/google-samples/kubernetes-bootcamp:v1"

  Normal  Created    11m   kubelet, localhost.localdomain  Created container kubernetes-bootcamp

  Normal  Started    11m   kubelet, localhost.localdomain  Started container kubernetes-bootcamp

 


Explore introduction https://kubernetes.io/docs/tutorials/kubernetes-basics/explore/explore-intro/

Get logs from pod

[dave@localhost ~]$ kubectl logs $POD_NAME

Kubernetes Bootcamp App Started At: 2020-02-09T07:53:26.300Z | Running On:  kubernetes-bootcamp-69fbc6f4cf-f2vvk 

 
 


Exec commands on pod

[dave@localhost ~]$ kubectl exec $POD_NAME env

PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin

HOSTNAME=kubernetes-bootcamp-69fbc6f4cf-f2vvk

NPM_CONFIG_LOGLEVEL=info

NODE_VERSION=6.3.1

KUBERNETES_PORT=tcp://10.152.183.1:443

KUBERNETES_PORT_443_TCP=tcp://10.152.183.1:443

KUBERNETES_PORT_443_TCP_PROTO=tcp

KUBERNETES_PORT_443_TCP_PORT=443

KUBERNETES_PORT_443_TCP_ADDR=10.152.183.1

KUBERNETES_SERVICE_HOST=10.152.183.1

KUBERNETES_SERVICE_PORT=443

KUBERNETES_SERVICE_PORT_HTTPS=443

HOME=/root

 


Run bash in pod
[dave@localhost ~]$ kubectl exec -ti $POD_NAME bash

root@kubernetes-bootcamp-69fbc6f4cf-f2vvk:/# cat server.js

var http = require('http');

var requests=0;

var podname= process.env.HOSTNAME;

var startTime;

var host;

var handleRequest = function(request, response) {

  response.setHeader('Content-Type', 'text/plain');

  response.writeHead(200);

  response.write("Hello Kubernetes bootcamp! | Running on: ");

  response.write(host);

  response.end(" | v=1\n");

  console.log("Running On:" ,host, "| Total Requests:", ++requests,"| App Uptime:", (new Date() - startTime)/1000 , "seconds", "| Log Time:",new Date());

}

var www = http.createServer(handleRequest);

www.listen(8080,function () {

    startTime = new Date();;

    host = process.env.HOSTNAME;

    console.log ("Kubernetes Bootcamp App Started At:",startTime, "| Running On: " ,host, "\n" );

});

root@kubernetes-bootcamp-69fbc6f4cf-f2vvk:/# curl localhost:8080

Hello Kubernetes bootcamp! | Running on: kubernetes-bootcamp-69fbc6f4cf-f2vvk | v=1

 





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Saturday, February 8, 2020

Install microk8s on Fedora

HOWTO

https://microk8s.io/#get-started


Install snap

https://snapcraft.io/docs/installing-snapd

https://www.cyberciti.biz/faq/install-snapd-on-fedora-linux-system-dnf-command/

[dave@localhost ~]$ sudo dnf install snapd

Fedora Modular 31 - x86_64 - Updates                                                                         40 kB/s |  23 kB     00:00    

Fedora 31 - x86_64 - Updates                                                                                 27 kB/s |  24 kB     00:00    

Fedora 31 - x86_64 - Updates                                                                                416 kB/s | 421 kB     00:01    

Dependencies resolved.

============================================================================================================================================

 Package                             Architecture                 Version                               Repository                     Size

============================================================================================================================================

Installing:

 snapd                               x86_64                       2.42.2-1.fc31                         updates                        16 M

Installing dependencies:

 snap-confine                        x86_64                       2.42.2-1.fc31                         updates                       2.4 M

 snapd-selinux                       noarch                       2.42.2-1.fc31                         updates                       220 k

 
Transaction Summary

============================================================================================================================================

Install  3 Packages

 
Total download size: 18 M

Installed size: 70 M

Is this ok [y/N]: y

Downloading Packages:

(1/3): snapd-selinux-2.42.2-1.fc31.noarch.rpm                                                               912 kB/s | 220 kB     00:00    

(2/3): snap-confine-2.42.2-1.fc31.x86_64.rpm                                                                2.9 MB/s | 2.4 MB     00:00    

(3/3): snapd-2.42.2-1.fc31.x86_64.rpm                                                                       7.9 MB/s |  16 MB     00:02    

--------------------------------------------------------------------------------------------------------------------------------------------

Total                                                                                                       7.3 MB/s |  18 MB     00:02     

Running transaction check

Transaction check succeeded.

Running transaction test

Transaction test succeeded.

Running transaction

  Preparing        :                                                                                                                    1/1 

  Running scriptlet: snapd-selinux-2.42.2-1.fc31.noarch                                                                                 1/3 

  Installing       : snapd-selinux-2.42.2-1.fc31.noarch                                                                                 1/3 

  Running scriptlet: snapd-selinux-2.42.2-1.fc31.noarch                                                                                 1/3 

  Installing       : snap-confine-2.42.2-1.fc31.x86_64                                                                                  2/3 

  Installing       : snapd-2.42.2-1.fc31.x86_64                                                                                         3/3 

  Running scriptlet: snapd-2.42.2-1.fc31.x86_64                                                                                         3/3 

Created symlink /etc/systemd/system/sockets.target.wants/snapd.socket → /usr/lib/systemd/system/snapd.socket.

Created symlink /etc/systemd/user/sockets.target.wants/snapd.session-agent.socket → /usr/lib/systemd/user/snapd.session-agent.socket.

 
  Running scriptlet: snapd-selinux-2.42.2-1.fc31.noarch                                                                                 3/3 

  Running scriptlet: snapd-2.42.2-1.fc31.x86_64                                                                                         3/3 

  Verifying        : snap-confine-2.42.2-1.fc31.x86_64                                                                                  1/3 

  Verifying        : snapd-2.42.2-1.fc31.x86_64                                                                                         2/3 

  Verifying        : snapd-selinux-2.42.2-1.fc31.noarch                                                                                 3/3 

 
Installed:

  snap-confine-2.42.2-1.fc31.x86_64               snapd-2.42.2-1.fc31.x86_64               snapd-selinux-2.42.2-1.fc31.noarch              

 
Complete!

[dave@localhost ~]$ sudo ln -s /var/lib/snapd/snap /snap

[dave@localhost ~]$ ls -l /snap

lrwxrwxrwx. 1 root root 19 Feb  8 07:46 /snap -> /var/lib/snapd/snap

[dave@localhost ~]$ snap version

snap    2.42.2-1.fc31

snapd   unavailable

series  -

 


Start snap service

[dave@localhost ~]$ snap search vlc

error: cannot list snaps: cannot communicate with server: Get http://localhost/v2/find?q=vlc&scope=wide: dial unix /run/snapd.socket: connect: no such file or directory

[dave@localhost ~]$ sudo systemctl start snapd.service

[dave@localhost ~]$ snap search vlc

Name            Version                 Publisher  Notes  Summary

vlc             3.0.8                   videolan✓  -      The ultimate media player

mjpg-streamer   2.0                     ogra       -      UVC webcam streaming tool

audio-recorder  3.0.5+rev1432+pkg-7b07  brlin      -      A free audio-recorder for Linux (EXTREMELY BUGGY)

dav1d           0.5.1-20-g52c7427       videolan✓  -      AV1 decoder from VideoLAN

peerflix        v0.39.0+git1.df28e20    pmagill    -      Streaming torrent client for Node.js

[dave@localhost ~]$ snap search microk8s

Name      Version  Publisher   Notes    Summary

microk8s  v1.17.2  canonical✓  classic  Kubernetes for workstations and appliances

 


Install microk8s


[dave@localhost ~]$ sudo snap install microk8s --classic

2020-02-08T07:51:58+01:00 INFO Waiting for restart...

Warning: /var/lib/snapd/snap/bin was not found in your $PATH. If you've not restarted your session

         since you installed snapd, try doing that. Please see https://forum.snapcraft.io/t/9469

         for more details.

 
microk8s v1.17.2 from Canonical✓ installed

 


List services

[dave@localhost ~]$ snap list

Name      Version    Rev   Tracking  Publisher   Notes

core      16-2.42.5  8268  stable    canonical✓  core

microk8s  v1.17.2    1173  stable    canonical✓  classic

[dave@localhost ~]$ snap services 

Service                             Startup  Current  Notes

microk8s.daemon-apiserver           enabled  active   -

microk8s.daemon-apiserver-kicker    enabled  active   -

microk8s.daemon-cluster-agent       enabled  active   -

microk8s.daemon-containerd          enabled  active   -

microk8s.daemon-controller-manager  enabled  active   -

microk8s.daemon-etcd                enabled  active   -

microk8s.daemon-flanneld            enabled  active   -

microk8s.daemon-kubelet             enabled  active   -

microk8s.daemon-proxy               enabled  active   -

microk8s.daemon-scheduler           enabled  active   -

 


Add /snap/bin into secure path into sudo

[root@localhost ~]# visudo

[root@localhost ~]# grep snap  /etc/sudoers

Defaults    secure_path = /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin

 


[dave@localhost ~]$ sudo microk8s.status --wait-ready

[sudo] password for dave: 

microk8s is running

addons:

cilium: disabled

dashboard: disabled

dns: disabled

fluentd: disabled

gpu: disabled

helm3: disabled

helm: disabled

ingress: disabled

istio: disabled

jaeger: disabled

juju: disabled

knative: disabled

kubeflow: disabled

linkerd: disabled

metallb: disabled

metrics-server: disabled

prometheus: disabled

rbac: disabled

registry: disabled

storage: disabled

 


Turn on standard services


[dave@localhost ~]$ sudo microk8s.enable dns dashboard registry

Enabling DNS

Applying manifest

serviceaccount/coredns created

configmap/coredns created

deployment.apps/coredns created

service/kube-dns created

clusterrole.rbac.authorization.k8s.io/coredns created

clusterrolebinding.rbac.authorization.k8s.io/coredns created

Restarting kubelet

DNS is enabled

Applying manifest

serviceaccount/kubernetes-dashboard created

service/kubernetes-dashboard created

secret/kubernetes-dashboard-certs created

secret/kubernetes-dashboard-csrf created

secret/kubernetes-dashboard-key-holder created

configmap/kubernetes-dashboard-settings created

role.rbac.authorization.k8s.io/kubernetes-dashboard created

clusterrole.rbac.authorization.k8s.io/kubernetes-dashboard created

rolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created

clusterrolebinding.rbac.authorization.k8s.io/kubernetes-dashboard created

deployment.apps/kubernetes-dashboard created

service/dashboard-metrics-scraper created

deployment.apps/dashboard-metrics-scraper created

service/monitoring-grafana created

service/monitoring-influxdb created

service/heapster created

deployment.apps/monitoring-influxdb-grafana-v4 created

serviceaccount/heapster created

clusterrolebinding.rbac.authorization.k8s.io/heapster created

configmap/heapster-config created

configmap/eventer-config created

deployment.apps/heapster-v1.5.2 created

 
If RBAC is not enabled access the dashboard using the default token retrieved with:

 
token=$(microk8s.kubectl -n kube-system get secret | grep default-token | cut -d " " -f1)

microk8s.kubectl -n kube-system describe secret $token

 
In an RBAC enabled setup (microk8s.enable RBAC) you need to create a user with restricted

permissions as shown in:

https://github.com/kubernetes/dashboard/blob/master/docs/user/access-control/creating-sample-user.md

 
Enabling the private registry

Enabling default storage class

deployment.apps/hostpath-provisioner created

storageclass.storage.k8s.io/microk8s-hostpath created

serviceaccount/microk8s-hostpath created

clusterrole.rbac.authorization.k8s.io/microk8s-hostpath created

clusterrolebinding.rbac.authorization.k8s.io/microk8s-hostpath created

Storage will be available soon

Applying registry manifest

namespace/container-registry created

persistentvolumeclaim/registry-claim created

deployment.apps/registry created

service/registry created

The registry is enabled

 


List services

[dave@localhost ~]$ microk8s.enable --help

Usage: microk8s.enable ADDON...

Enable one or more ADDON included with microk8s

Example: microk8s.enable dns storage

 
Available addons:

 
  cilium

  dashboard

  dns

  fluentd

  gpu

  helm

  helm3

  ingress

  istio

  jaeger

  juju

  knative

  kubeflow

  linkerd

  metallb

  metrics-server

  prometheus

  rbac

  registry

  storage

 

Add user into microk8s group

[dave@localhost ~]$ microk8s.status --wait-ready

Insufficient permissions to access MicroK8s.

You can either try again with sudo or add the user dave to the 'microk8s' group:

 
    sudo usermod -a -G microk8s dave

 
The new group will be available on the user's next login.

 
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Thursday, December 26, 2019

Continuous Deployment (CD) with Jenkins and Kubernetes on Google Cloud

Jenkins on Kubernetes Engine

https://cloud.google.com/solutions/jenkins-on-kubernetes-engine

https://cloud.google.com/solutions/jenkins-on-kubernetes-engine-tutorial

Provision a Jenkins environment on a Kubernetes Engine Cluster, using the Helm Package Manager.
Google Kubernetes Engine (GKE) is the hosted version of Kubernetes on Google Cloud Platform (GCP).

Create k8s cluster

gcloud container clusters create jenkins-cd \

  --num-nodes 2 \

  --machine-type n1-standard-2 \

  --cluster-version 1.13 \

  --service-account "jenkins-sa@$GOOGLE_CLOUD_PROJECT.iam.gserviceaccount.com"


 Jenkins Kubernetes plugin
https://wiki.jenkins-ci.org/display/JENKINS/Kubernetes+Plugin 

Scale

kubectl --namespace=production scale deployment gceme-frontend-production --replicas=4


Port forward

export DEV_POD_NAME=$(kubectl get pods -n new-feature -l "app=gceme,env=dev,role=frontend" -o jsonpath="{.items[0].metadata.name}")

kubectl port-forward -n new-feature $DEV_POD_NAME 8001:80 >> /dev/null &





export FRONTEND_SERVICE_IP=$(kubectl get -o jsonpath="{.status.loadBalancer.ingress[0].ip}" --namespace=production services gceme-frontend)



while true; do curl http://$FRONTEND_SERVICE_IP/version; sleep 1; done






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Application deployment into Google Kubernetes Engine on Google Cloud

Kubernetes https://kubernetes.io/

Google Kubernetes Engine  https://cloud.google.com/container-engine

Sample app https://github.com/kelseyhightower/app
 It's a 12-Factor application with the following Docker images:
  • Monolith: includes auth and hello services.
  • Auth microservice: generates JWT tokens for authenticated users.
  • Hello microservice: greets authenticated users.
  • nginx: frontend to the auth and hello services.
 

Tools

The gcloud command-line interface is a tool that provides the primary CLI to Google Cloud Platform.
https://cloud.google.com/sdk/gcloud/

Access the Kubernetes pods


Pods are allocated a private IP address by default that cannot be reached outside of the cluster. Use the kubectl port-forward command to map a local port to a port inside the monolith pod.

kubectl port-forward myapp  9999:80  
 
  
 
TOKEN=$(curl http://127.0.0.1:9999/login -u user|jq -r '.token') 
 
  
 
curl -H "Authorization: Bearer $TOKEN" http://127.0.0.1:9999/secure  
Run shell inside pod

kubectl exec myapp --stdin --tty -c myapp /bin/sh


This uploads cert files from the local directory tls/ and stores them in a secret called tls-certs.

kubectl create secret generic tls-certs --from-file tls/


kubectl create configmap nginx-proxy-conf --from-file nginx/proxy.conf



more nginx/proxy.conf

server {

  listen 443;

  ssl    on;

 
  ssl_certificate     /etc/tls/cert.pem;

  ssl_certificate_key /etc/tls/key.pem;

 
  location / {

    proxy_pass http://127.0.0.1:80;

  }

}


Setup firewall
gcloud compute firewall-rules create allow-myapp-nodeport --allow=tcp:31000



NAME                     NETWORK  DIRECTION  PRIORITY  ALLOW      DENY  DISABLED

allow-myapp-nodeport  default  INGRESS    1000      tcp:31000        False


Get pods with secure=enabled

kubectl get pods -l "app=myapp,secure=enabled"


Get endpoints

kubectl get endpoints monolith




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Sunday, November 17, 2019

Deploying microservices to Kubernetes using OpenLiberty


OpenLiberty sample github
https://github.com/OpenLiberty/guide-kubernetes-intro

OpenLiberty tutorial
https://openliberty.io/guides/kubernetes-intro.html#what-youll-learn

MiniKubernetes installation guide
https://github.com/kubernetes/minikube#installation

Minikube Linux install
https://minikube.sigs.k8s.io/docs/start/linux/

Fedora Getting started with virtualization
https://docs.fedoraproject.org/en-US/quick-docs/getting-started-with-virtualization/


Dependencies resolved. 
================================================================================================================================================== 
 Package                                      Architecture                Version                               Repository                   Size 
================================================================================================================================================== 
Installing group/module packages: 
 virt-install                                 noarch                      2.2.1-2.fc31                          fedora                       64 k 
 virt-manager                                 noarch                      2.2.1-2.fc31                          fedora                      543 k 
 virt-viewer                                  x86_64                      8.0-3.fc31                            fedora                      404 k 
Installing dependencies: 
 autogen-libopts                              x86_64                      5.18.16-3.fc31                        fedora                       75 k 
 gnutls-dane                                  x86_64                      3.6.10-1.fc31                         fedora                       27 k 
 gnutls-utils                                 x86_64                      3.6.10-1.fc31                         fedora                      341 k 
 libgovirt                                    x86_64                      0.3.4-9.fc30                          fedora                       71 k 
 libvirt-bash-completion                      x86_64                      5.6.0-4.fc31                          fedora                       12 k 
 libvirt-client                               x86_64                      5.6.0-4.fc31                          fedora                      343 k 
 python3-libvirt                              x86_64                      5.6.0-1.fc31                          fedora                      294 k 
 virt-manager-common                          noarch                      2.2.1-2.fc31                          fedora                      1.0 M 
Installing Groups: 
 Virtualization            


dave@localhost finish]$ sudo systemctl start libvirtd
[dave@localhost finish]$ sudo systemctl enable libvirtd
Created symlink /etc/systemd/system/sockets.target.wants/libvirtd.socket → /usr/lib/systemd/system/libvirtd.socket.
Created symlink /etc/systemd/system/sockets.target.wants/libvirtd-ro.socket → /usr/lib/systemd/system/libvirtd-ro.socket.
[dave@localhost finish]$ lsmod | grep kvm
kvm_intel             299008  0
kvm                   770048  1 kvm_intel
irqbypass              16384  1 kvm

Some errors appear in virt validation

[dave@localhost finish]$ virt-host-validate
  QEMU: Checking for hardware virtualization                                 : PASS
  QEMU: Checking if device /dev/kvm exists                                   : PASS
  QEMU: Checking if device /dev/kvm is accessible                            : PASS
  QEMU: Checking if device /dev/vhost-net exists                             : PASS
  QEMU: Checking if device /dev/net/tun exists                               : PASS
  QEMU: Checking for cgroup 'cpu' controller support                         : WARN (Enable 'cpu' in kernel Kconfig file or mount/enable cgroup controller in your system)
  QEMU: Checking for cgroup 'cpuacct' controller support                     : PASS
  QEMU: Checking for cgroup 'cpuset' controller support                      : WARN (Enable 'cpuset' in kernel Kconfig file or mount/enable cgroup controller in your system)
  QEMU: Checking for cgroup 'memory' controller support                      : PASS
  QEMU: Checking for cgroup 'devices' controller support                     : WARN (Enable 'devices' in kernel Kconfig file or mount/enable cgroup controller in your system)
  QEMU: Checking for cgroup 'blkio' controller support                       : WARN (Enable 'blkio' in kernel Kconfig file or mount/enable cgroup controller in your system)
  QEMU: Checking for device assignment IOMMU support                         : PASS
  QEMU: Checking if IOMMU is enabled by kernel                               : WARN (IOMMU appears to be disabled in kernel. Add intel_iommu=on to kernel cmdline arguments)
   LXC: Checking for Linux >= 2.6.26                                         : PASS
   LXC: Checking for namespace ipc                                           : PASS
   LXC: Checking for namespace mnt                                           : PASS
   LXC: Checking for namespace pid                                           : PASS
   LXC: Checking for namespace uts                                           : PASS
   LXC: Checking for namespace net                                           : PASS
   LXC: Checking for namespace user                                          : PASS
   LXC: Checking for cgroup 'cpu' controller support                         : FAIL (Enable 'cpu' in kernel Kconfig file or mount/enable cgroup controller in your system)
   LXC: Checking for cgroup 'cpuacct' controller support                     : PASS
   LXC: Checking for cgroup 'cpuset' controller support                      : FAIL (Enable 'cpuset' in kernel Kconfig file or mount/enable cgroup controller in your system)
   LXC: Checking for cgroup 'memory' controller support                      : PASS
   LXC: Checking for cgroup 'devices' controller support                     : FAIL (Enable 'devices' in kernel Kconfig file or mount/enable cgroup controller in your system)
   LXC: Checking for cgroup 'freezer' controller support                     : FAIL (Enable 'freezer' in kernel Kconfig file or mount/enable cgroup controller in your system)
   LXC: Checking for cgroup 'blkio' controller support                       : FAIL (Enable 'blkio' in kernel Kconfig file or mount/enable cgroup controller in your system)
   LXC: Checking if device /sys/fs/fuse/connections exists                   : PASS



[root@localhost ~]# sudo dnf config-manager --add-repo=https://download.docker.com/linux/fedora/docker-ce.repo

Adding repo from: https://download.docker.com/linux/fedora/docker-ce.repo

 


After Docker installtion all tests pass

[root@localhost ~]# virt-host-validate

  QEMU: Checking for hardware virtualization                                 : PASS

  QEMU: Checking if device /dev/kvm exists                                   : PASS

  QEMU: Checking if device /dev/kvm is accessible                            : PASS

  QEMU: Checking if device /dev/vhost-net exists                             : PASS

  QEMU: Checking if device /dev/net/tun exists                               : PASS

  QEMU: Checking for cgroup 'cpu' controller support                         : PASS

  QEMU: Checking for cgroup 'cpuacct' controller support                     : PASS

  QEMU: Checking for cgroup 'cpuset' controller support                      : PASS

  QEMU: Checking for cgroup 'memory' controller support                      : PASS

  QEMU: Checking for cgroup 'devices' controller support                     : PASS

  QEMU: Checking for cgroup 'blkio' controller support                       : PASS

  QEMU: Checking for device assignment IOMMU support                         : PASS

  QEMU: Checking if IOMMU is enabled by kernel                               : WARN (IOMMU appears to be disabled in kernel. Add intel_iommu=on to kernel cmdline arguments)

   LXC: Checking for Linux >= 2.6.26                                         : PASS

   LXC: Checking for namespace ipc                                           : PASS

   LXC: Checking for namespace mnt                                           : PASS

   LXC: Checking for namespace pid                                           : PASS

   LXC: Checking for namespace uts                                           : PASS

   LXC: Checking for namespace net                                           : PASS

   LXC: Checking for namespace user                                          : PASS

   LXC: Checking for cgroup 'cpu' controller support                         : PASS

   LXC: Checking for cgroup 'cpuacct' controller support                     : PASS

   LXC: Checking for cgroup 'cpuset' controller support                      : PASS

   LXC: Checking for cgroup 'memory' controller support                      : PASS

   LXC: Checking for cgroup 'devices' controller support                     : PASS

   LXC: Checking for cgroup 'freezer' controller support                     : PASS

   LXC: Checking for cgroup 'blkio' controller support                       : PASS

   LXC: Checking if device /sys/fs/fuse/connections exists                   : PASS

 


Install minikube
https://minikube.sigs.k8s.io/docs/start/linux/ 



 
Download and install minikube to /usr/local/bin:

 
 curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64 \

   && sudo install minikube-linux-amd64 /usr/local/bin/minikube

 
 


Start minukube

[dave@localhost ~]$ minikube start --vm-driver=kvm2

😄  minikube v1.5.2 on Fedora 31

✨  Automatically selected the 'kvm2' driver (alternates: [none])

💾  Downloading driver docker-machine-driver-kvm2:

    > docker-machine-driver-kvm2.sha256: 65 B / 65 B [-------] 100.00% ? p/s 0s

    > docker-machine-driver-kvm2: 13.87 MiB / 13.87 MiB  100.00% 8.94 MiB p/s 2

💿  Downloading VM boot image ...

    > minikube-v1.5.1.iso.sha256: 65 B / 65 B [--------------] 100.00% ? p/s 0s

    > minikube-v1.5.1.iso: 143.76 MiB / 143.76 MiB [-] 100.00% 17.68 MiB p/s 9s

🔥  Creating kvm2 VM (CPUs=2, Memory=2000MB, Disk=20000MB) ...

 

dave@localhost ~]$ minikube start

😄  minikube v1.5.2 on Fedora 31

💡  Tip: Use 'minikube start -p <name>' to create a new cluster, or 'minikube delete' to delete this one.

🏃  Using the running kvm2 "minikube" VM ...

⌛  Waiting for the host to be provisioned ...

🐳  Preparing Kubernetes v1.16.2 on Docker '18.09.9' ...

💾  Downloading kubeadm v1.16.2

💾  Downloading kubelet v1.16.2

🔄  Relaunching Kubernetes using kubeadm ... 

 

Need to work on virtual host configuration

🔄  Relaunching Kubernetes using kubeadm ... 

  
💣  Error restarting cluster: waiting for apiserver: apiserver process never appeared

 


Need to download and install Fedora 31 image

Create storage

dd if=/dev/zero of=/var/lib/libvirt/images/guest.img bs=1M count=20480


Download ISO image at https://getfedora.org/en/workstation/download/ 

 root@localhost ~]# cp /home/dave/Downloads/Fedora-Workstation-Live-x86_64-31-1.9.iso /var/lib/libvirt/images/Fedora-Workstation-31/
 root@localhost ~]# virt-install --name Fedora31 --description 'Fedora 31 Workstation' --ram 4096 --vcpus 2 --disk path=/var/lib/libvirt/images/Fedora-Workstation-31/Fedora-Workstation-31-20180518.0.x86_64.qcow2,size=20 --os-type linux --os-variant fedora31 --network bridge=virbr0 --graphics vnc,listen=127.0.0.1,port=5901 --cdrom /var/lib/libvirt/images/Fedora-Workstation-31/Fedora-Workstation-Live-x86_64-31-1.9.iso --noautoconsole

Install Kubernetes client
[root@localhost ~]# dnf install kubernetes-client

 


dave@localhost ~]$  kubectl get po -A

NAMESPACE     NAME                               READY   STATUS    RESTARTS   AGE

kube-system   coredns-5644d7b6d9-hgfrq           1/1     Running   0          3m27s

kube-system   coredns-5644d7b6d9-rh2wp           1/1     Running   0          3m27s

kube-system   etcd-minikube                      1/1     Running   0          2m24s

kube-system   kube-addon-manager-minikube        1/1     Running   0          3m37s

kube-system   kube-apiserver-minikube            1/1     Running   0          2m16s

kube-system   kube-controller-manager-minikube   1/1     Running   0          2m24s

kube-system   kube-proxy-brljs                   1/1     Running   0          3m26s

kube-system   kube-scheduler-minikube            1/1     Running   0          2m18s

kube-system   storage-provisioner                1/1     Running   0          3m25s

 

[dave@localhost guide-kubernetes-intro]$ ls

finish  LICENSE  README.adoc  scripts  start

[dave@localhost guide-kubernetes-intro]$ cd finish/

[dave@localhost finish]$ kubectl get nodes

NAME       STATUS   ROLES    AGE     VERSION

minikube   Ready    master   5m24s   v1.16.2

 


Follow the OpenLiberty guide

 https://openliberty.io/guides/kubernetes-intro.html#building-and-containerizing-the-microservices


https://openliberty.io/guides/kubernetes-intro.html#building-and-containerizing-the-microservices

[INFO] Reactor Summary for guide-kubernetes-intro 1.0-SNAPSHOT:

[INFO] 

[INFO] guide-kubernetes-intro ............................. SUCCESS [  0.114 s]

[INFO] system ............................................. SUCCESS [ 56.164 s]

[INFO] inventory .......................................... SUCCESS [  3.497 s]

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

[INFO] ------------------------------------------------------------------------

[INFO] Total time:  01:01 min

[INFO] Finished at: 2019-11-23T14:51:32+01:00

[INFO] ------------------------------------------------------------------------

 



Build Docker images

[dave@localhost finish]$ docker build -t system:1.0-SNAPSHOT system/.

Sending build context to Docker daemon  173.1MB

Step 1/2 : FROM open-liberty

latest: Pulling from library/open-liberty

7ddbc47eeb70: Pull complete 

c1bbdc448b72: Pull complete 

8c3b70e39044: Pull complete 

45d437916d57: Pull complete 

da4c04c54fa4: Pull complete 

8f6c6858a836: Pull complete 

5d00a703c295: Pull complete 

cb8753aefdab: Pull complete 

973c4edce328: Pull complete 

768f5576235d: Pull complete 

03125c94a5ec: Pull complete 

Digest: sha256:c23b036bed7bd0dec141db5bbde186fb617fd67f4d2db4c1a7793eb483354fc9

Status: Downloaded newer image for open-liberty:latest

 ---> 33db8778e38a

Step 2/2 : ADD --chown=1001:0 target/system.tar.gz /opt/ol

 ---> 63fb2879e723

Successfully built 63fb2879e723

Successfully tagged system:1.0-SNAPSHOT

 


Build inventory image
[dave@localhost finish]$ docker build -t inventory:1.0-SNAPSHOT inventory/.

Sending build context to Docker daemon    174MB

Step 1/2 : FROM open-liberty

 ---> 33db8778e38a

Step 2/2 : ADD --chown=1001:0 target/inventory.tar.gz /opt/ol

 ---> c2f7faff812d

Successfully built c2f7faff812d

Successfully tagged inventory:1.0-SNAPSHOT

 


List of Docker images

[dave@localhost finish]$ docker images

REPOSITORY                                TAG                 IMAGE ID            CREATED              SIZE

inventory                                 1.0-SNAPSHOT        c2f7faff812d        44 seconds ago       393MB

system                                    1.0-SNAPSHOT        63fb2879e723        About a minute ago   393MB

open-liberty                              latest              33db8778e38a        2 weeks ago          392MB

k8s.gcr.io/kube-proxy                     v1.16.2             8454cbe08dc9        5 weeks ago          86.1MB

k8s.gcr.io/kube-controller-manager        v1.16.2             6e4bffa46d70        5 weeks ago          163MB

k8s.gcr.io/kube-apiserver                 v1.16.2             c2c9a0406787        5 weeks ago          217MB

k8s.gcr.io/kube-scheduler                 v1.16.2             ebac1ae204a2        5 weeks ago          87.3MB

k8s.gcr.io/etcd                           3.3.15-0            b2756210eeab        2 months ago         247MB

k8s.gcr.io/coredns                        1.6.2               bf261d157914        3 months ago         44.1MB

k8s.gcr.io/kube-addon-manager             v9.0.2              bd12a212f9dc        4 months ago         83.1MB

k8s.gcr.io/kube-addon-manager             v9.0                119701e77cbc        10 months ago        83.1MB

k8s.gcr.io/kubernetes-dashboard-amd64     v1.10.1             f9aed6605b81        11 months ago        122MB

k8s.gcr.io/k8s-dns-sidecar-amd64          1.14.13             4b2e93f0133d        14 months ago        42.9MB

k8s.gcr.io/k8s-dns-kube-dns-amd64         1.14.13             55a3c5209c5e        14 months ago        51.2MB

k8s.gcr.io/k8s-dns-dnsmasq-nanny-amd64    1.14.13             6dc8ef8287d3        14 months ago        41.4MB

k8s.gcr.io/pause                          3.1                 da86e6ba6ca1        23 months ago        742kB

gcr.io/k8s-minikube/storage-provisioner   v1.8.1              4689081edb10        2 years ago          80.8MB

 


kubernetes.yaml
apiVersion: apps/v1

kind: Deployment

metadata:

  name: system-deployment

  labels:

    app: system

spec:

  selector:

    matchLabels:

      app: system

  template:

    metadata:

      labels:

        app: system

    spec:

      containers:

      - name: system-container

        image: system:1.0-SNAPSHOT

        ports:

        - containerPort: 9080

---

apiVersion: apps/v1

kind: Deployment

metadata:

  name: inventory-deployment

  labels:

    app: inventory

spec:

  selector:

    matchLabels:

      app: inventory

  template:

    metadata:

      labels:

        app: inventory

    spec:

      containers:

      - name: inventory-container

        image: inventory:1.0-SNAPSHOT

        ports:

        - containerPort: 9080

---

apiVersion: v1

kind: Service

metadata:

  name: system-service

spec:

  type: NodePort

  selector:

    app: system

  ports:

  - protocol: TCP

    port: 9080

    targetPort: 9080

    nodePort: 31000

---

apiVersion: v1

kind: Service

metadata:

  name: inventory-service

spec:

  type: NodePort

  selector:

    app: inventory

  ports:

  - protocol: TCP

    port: 9080

    targetPort: 9080

    nodePort: 32000



[dave@localhost finish]$ kubectl apply -f kubernetes.yaml

deployment.apps/system-deployment created

deployment.apps/inventory-deployment created

service/system-service created

service/inventory-service created

 



get pods

[dave@localhost finish]$ kubectl get pods

NAME                                    READY   STATUS    RESTARTS   AGE

inventory-deployment-759769c979-tzq9b   1/1     Running   0          24s

system-deployment-94895d89d-6dpp6       1/1     Running   0          24s

[dave@localhost finish]$ 

 


Describe pods
[dave@localhost finish]$ kubectl describe pods

Name:           inventory-deployment-759769c979-tzq9b

Namespace:      default

Priority:       0

Node:           minikube/192.168.39.189

Start Time:     Sat, 23 Nov 2019 14:55:44 +0100

Labels:         app=inventory

                pod-template-hash=759769c979

Annotations:    <none>

Status:         Running

IP:             172.17.0.5

Controlled By:  ReplicaSet/inventory-deployment-759769c979

Containers:

  inventory-container:

    Container ID:   docker://255c6a483511976cc861a644e3c83049411c9dfb9deb39694ed2f456f821a0bf

    Image:          inventory:1.0-SNAPSHOT

    Image ID:       docker://sha256:c2f7faff812d29712919e170acb72ce64192ba9fee543ce1b56a3f3271c59ae1

    Port:           9080/TCP

    Host Port:      0/TCP

    State:          Running

      Started:      Sat, 23 Nov 2019 14:55:45 +0100

    Ready:          True

    Restart Count:  0

    Environment:    <none>

    Mounts:

      /var/run/secrets/kubernetes.io/serviceaccount from default-token-z9cp2 (ro)

Conditions:

  Type              Status

  Initialized       True 

  Ready             True 

  ContainersReady   True 

  PodScheduled      True 

Volumes:

  default-token-z9cp2:

    Type:        Secret (a volume populated by a Secret)

    SecretName:  default-token-z9cp2

    Optional:    false

QoS Class:       BestEffort

Node-Selectors:  <none>

Tolerations:     node.kubernetes.io/not-ready:NoExecute for 300s

                 node.kubernetes.io/unreachable:NoExecute for 300s

Events:

  Type    Reason     Age        From               Message

  ----    ------     ----       ----               -------

  Normal  Scheduled  <unknown>  default-scheduler  Successfully assigned default/inventory-deployment-759769c979-tzq9b to minikube

  Normal  Pulled     49s        kubelet, minikube  Container image "inventory:1.0-SNAPSHOT" already present on machine

  Normal  Created    49s        kubelet, minikube  Created container inventory-container

  Normal  Started    48s        kubelet, minikube  Started container inventory-container

 
 
Name:           system-deployment-94895d89d-6dpp6

Namespace:      default

Priority:       0

Node:           minikube/192.168.39.189

Start Time:     Sat, 23 Nov 2019 14:55:44 +0100

Labels:         app=system

                pod-template-hash=94895d89d

Annotations:    <none>

Status:         Running

IP:             172.17.0.4

Controlled By:  ReplicaSet/system-deployment-94895d89d

Containers:

  system-container:

    Container ID:   docker://eaaaa4976cd8ec0218872276faacf9bd52dcfac125ab2a1ce372ab692d88b859

    Image:          system:1.0-SNAPSHOT

    Image ID:       docker://sha256:63fb2879e723f56f74af3ec4ad6f4672ba3dbe8db3b162a5cb80b7496703f1c2

    Port:           9080/TCP

    Host Port:      0/TCP

    State:          Running

      Started:      Sat, 23 Nov 2019 14:55:45 +0100

    Ready:          True

    Restart Count:  0

    Environment:    <none>

    Mounts:

      /var/run/secrets/kubernetes.io/serviceaccount from default-token-z9cp2 (ro)

Conditions:

  Type              Status

  Initialized       True 

  Ready             True 

  ContainersReady   True 

  PodScheduled      True 

Volumes:

  default-token-z9cp2:

    Type:        Secret (a volume populated by a Secret)

    SecretName:  default-token-z9cp2

    Optional:    false

QoS Class:       BestEffort

Node-Selectors:  <none>

Tolerations:     node.kubernetes.io/not-ready:NoExecute for 300s

                 node.kubernetes.io/unreachable:NoExecute for 300s

Events:

  Type    Reason     Age        From               Message

  ----    ------     ----       ----               -------

  Normal  Scheduled  <unknown>  default-scheduler  Successfully assigned default/system-deployment-94895d89d-6dpp6 to minikube

  Normal  Pulled     49s        kubelet, minikube  Container image "system:1.0-SNAPSHOT" already present on machine

  Normal  Created    49s        kubelet, minikube  Created container system-container

  Normal  Started    48s        kubelet, minikube  Started container system-container

 


Get ip
[dave@localhost finish]$ minikube ip 

192.168.39.189

 



Test  endpoint
[dave@localhost finish]$ curl http://192.168.39.189:31000/system/properties

{"java.vendor":"Eclipse OpenJ9","default.https.port":"9443","sun.java.launcher":"SUN_STANDARD","shared.resource.dir":"/opt/ol/wlp/usr/shared/resources/","os.name":"Linux","kernel.launch.time":"809693252842","sun.boot.class.path":"/opt/java/openjdk/lib/amd64/compressedrefs/jclSC180/vm.jar:/opt/java/openjdk/lib/se-service.jar:/opt/java/openjdk/lib/rt.jar:/opt/java/openjdk/lib/resources.jar:/opt/java/openjdk/lib/jsse.jar:/opt/java/openjdk/lib/charsets.jar:/opt/java/openjdk/lib/jce.jar","default.http.port":"9080","java.vm.specification.vendor":"Oracle Corporation","shared.app.dir":"/opt/ol/wlp/usr/shared/apps/","java.runtime.version":"1.8.0_232-b09","wlp.lib.dir":"/opt/ol/wlp/lib/","wlp.workarea.dir":"workarea/","user.name":"default","java.compiler":"j9jit29","os.encoding":"UTF-8","com.ibm.util.extralibs.properties":"","com.ibm.jcl.checkClassPath":"","server.tmp.dir":"/opt/ol/wlp/output/defaultServer/workarea/tmp/","user.language":"en","jdk.attach.allowAttachSelf":"true","com.ibm.oti.vm.bootstrap.library.path":"/opt/java/openjdk/lib/amd64/compressedrefs:/opt/java/openjdk/lib/amd64","sun.boot.library.path":"/opt/java/openjdk/lib/amd64/compressedrefs:/opt/java/openjdk/lib/amd64","wlp.install.dir":"/opt/ol/wlp/","server.output.dir":"/opt/ol/wlp/output/defaultServer/","jdk.extensions.version":"8.0.232.0","java.util.logging.manager":"com.ibm.ws.kernel.boot.logging.WsLogManager","java.version":"1.8.0_232","user.timezone":"GMT","com.ibm.system.agent.path":"/opt/java/openjdk/lib/amd64","sun.arch.data.model":"64","com.ibm.zero.version":"2","java.endorsed.dirs":"/opt/java/openjdk/lib/endorsed","com.ibm.oti.vm.library.version":"29","sun.jnu.encoding":"UTF-8","file.encoding.pkg":"sun.io","file.separator":"/","java.specification.name":"Java Platform API Specification","java.class.version":"52.0","user.country":"US","java.home":"/opt/java/openjdk","java.vm.info":"JRE 1.8.0 Linux amd64-64-Bit Compressed References 20191017_442 (JIT enabled, AOT enabled)\nOpenJ9   - 77c1cf708\nOMR      - 20db4fbc\nJCL      - 97b5ec8f383 based on jdk8u232-b09","os.version":"4.19.76","java.awt.fonts":"","path.separator":":","org.apache.aries.blueprint.preemptiveShutdown":"false","java.vm.version":"openj9-0.17.0","user.variant":"","wlp.user.dir.isDefault":"true","ibm.cds.suppresserrors":"true","java.awt.printerjob":"sun.print.PSPrinterJob","jdk.extensions.name":"Extensions for OpenJDK for Eclipse OpenJ9","sun.io.unicode.encoding":"UnicodeLittle","awt.toolkit":"sun.awt.X11.XToolkit","ibm.signalhandling.sigint":"true","org.apache.cxf.stax.allowInsecureParser":"1","user.home":"/home/default","com.ibm.cpu.endian":"little","java.specification.vendor":"Oracle Corporation","ibm.signalhandling.sigchain":"true","org.jboss.weld.xml.disableValidating":"true","java.library.path":"/opt/java/openjdk/lib/amd64/compressedrefs:/opt/java/openjdk/lib/amd64:/usr/lib64:/usr/lib","java.vendor.url":"http://www.eclipse.org/openj9","java.vm.vendor":"Eclipse OpenJ9","java.fullversion":"1.8.0_232-b09\nJRE 1.8.0 Linux amd64-64-Bit Compressed References 20191017_442 (JIT enabled, AOT enabled)\nOpenJ9   - 77c1cf708\nOMR      - 20db4fbc\nJCL      - 97b5ec8f383 based on jdk8u232-b09","java.runtime.name":"OpenJDK Runtime Environment","sun.net.http.retryPost":"false","sun.java.command":"/opt/ol/wlp/bin/tools/ws-server.jar defaultServer","java.class.path":"/opt/ol/wlp/bin/tools/ws-server.jar:/opt/ol/wlp/bin/tools/ws-javaagent.jar:/opt/ol/wlp/bin/tools/ws-javaagent.jar","server.config.dir":"/opt/ol/wlp/usr/servers/defaultServer/","wlp.user.dir":"/opt/ol/wlp/usr/","java.vm.specification.name":"Java Virtual Machine Specification","sun.java.launcher.pid":"1","java.vm.specification.version":"1.8","sun.cpu.endian":"little","java.awt.headless":"true","java.io.tmpdir":"/tmp","ibm.system.encoding":"UTF-8","shared.config.dir":"/opt/ol/wlp/usr/shared/config/","os.arch":"amd64","java.awt.graphicsenv":"sun.awt.X11GraphicsEnvironment","ibm.signalhandling.rs":"false","java.ext.dirs":"/opt/java/openjdk/lib/ext","user.dir":"/opt/ol/wlp/output/defaultServer","line.separator":"\n","java.vm.name":"Eclipse OpenJ9 VM","com.ibm.oti.shared.enabled":"true","com.ibm.vm.bitmode":"64","wlp.process.type":"server","javax.management.builder.initial":"com.ibm.ws.kernel.boot.jmx.internal.PlatformMBeanServerBuilder","file.encoding":"UTF-8","java.specification.version":"1.8","com.ibm.oti.configuration":"scar","wlp.server.name":"defaultServer"}


Scale deployment
[dave@localhost finish]$ kubectl scale deployment/system-deployment --replicas=3

deployment.apps/system-deployment scaled

[dave@localhost finish]$ kubectl get pods

NAME                                    READY   STATUS    RESTARTS   AGE

inventory-deployment-759769c979-tzq9b   1/1     Running   0          11m

system-deployment-94895d89d-58mlq       1/1     Running   0          5s

system-deployment-94895d89d-6dpp6       1/1     Running   0          11m

system-deployment-94895d89d-9q9xz       1/1     Running   0          5s

 


Run tests

[INFO] -------------------------------------------------------

[INFO]  T E S T S

[INFO] -------------------------------------------------------

[INFO] Running it.io.openliberty.guides.inventory.InventoryEndpointTest

[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.188 s - in it.io.openliberty.guides.inventory.InventoryEndpointTest

[INFO] 

[INFO] Results:

[INFO] 

[INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO] 

[INFO] 

[INFO] --- liberty-maven-plugin:3.0.M1:test-stop-server (test-stop-server) @ inventory ---

[INFO] CWWKM2102I: Using artifact based assembly archive : io.openliberty:openliberty-runtime:null:RELEASE:zip.

[INFO] CWWKM2102I: Using installDirectory : /git/guide-kubernetes-intro/finish/inventory/target/liberty/wlp.

[INFO] CWWKM2102I: Using serverName : defaultServer.

[INFO] CWWKM2102I: Using serverDirectory : /git/guide-kubernetes-intro/finish/inventory/target/liberty/wlp/usr/servers/defaultServer.

[INFO] CWWKM2152I: Stopping server defaultServer.

[INFO] CWWKM2001I: server.config.dir is /git/guide-kubernetes-intro/finish/inventory/target/liberty/wlp/usr/servers/defaultServer.

[INFO] CWWKM2001I: server.output.dir is /git/guide-kubernetes-intro/finish/inventory/target/liberty/wlp/usr/servers/defaultServer.

[INFO] CWWKM2001I: Invoke command is [/git/guide-kubernetes-intro/finish/inventory/target/liberty/wlp/bin/server, stop, defaultServer].

[INFO] 

[INFO] Stopping server defaultServer.

[INFO] Server defaultServer stopped.

[INFO] 

[INFO] --- maven-failsafe-plugin:3.0.0-M1:verify (verify-results) @ inventory ---

[INFO] ------------------------------------------------------------------------

[INFO] Reactor Summary for guide-kubernetes-intro 1.0-SNAPSHOT:

[INFO] 

[INFO] guide-kubernetes-intro ............................. SUCCESS [  0.003 s]

[INFO] system ............................................. SUCCESS [  8.917 s]

[INFO] inventory .......................................... SUCCESS [  9.144 s]

[INFO] ------------------------------------------------------------------------

[INFO] BUILD SUCCESS

 


Resource usage


Virtual machine manager

[root@localhost ~]# virt-manager




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