VirtualBox で minikube を動かす
minikubeのドキュメントをもとに操作すると何が起こるか、を残す。
バージョン
このバージョンを前提に構成する。
- VirtualBox: 5.2.20
- kubectl: v1.13.3
構成
構成すると、次のようになった。
- Windows
- VirtualBox
- VM: minikube
- kubectl
- VirtualBox
ネットワーク構成
構成すると、次のようになった。
internet
|
router
|
--o-o--
|
Windows ----.
| |
| router(nat)
| |
| --o-o------ 10.0.2.0/24
| | .15
| eth0
| minikube
| eth1
| | .100
--o-----------o------ 192.168.99.0/24
仮想マシン
構成すると、次のようになった。
ハードウェア
- VM: minikube
- vMEM: 2048MB
- vCPU: 2
- ストレージ
- SATA port0: boot2docker.iso
- SATA port1: disk.vmdk (20GB)
- ネットワーク
- アダプタ1: NAT
- アダプタ2: ホストオンリーアダプタ
- 共有フォルダ
- c/Users
パスワード
- username: docker
- password: tcuser
仮想マシンOS
構成すると、次のようになった。
ストレージ構成
$ cat /etc/fstab
# <file system> <mount pt> <type> <options> <dump> <pass>
/dev/root / ext2 rw,noauto 0 1
proc /proc proc defaults 0 0
devpts /dev/pts devpts defaults,gid=5,mode=620 0 0
sysfs /sys sysfs defaults 0 0
$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 908M 0 908M 0% /dev
tmpfs 996M 0 996M 0% /dev/shm
tmpfs 996M 17M 979M 2% /run
tmpfs 996M 0 996M 0% /sys/fs/cgroup
tmpfs 996M 20K 996M 1% /tmp
/dev/sda1 17G 937M 15G 7% /mnt/sda1
/c/Users 118G 94G 24G 80% /c/Users:w
手順
コンテナを動かして、ブラウザで見る
管理者権限
choco install kubernetes-cli
cd $HOME
mkdir .kube
cd $HOME/.kube
New-Item config -type file
choco install minikube kubernetes-cli
一般ユーザ:
minikube --vm-driver=virtualbox start
ログ
o minikube v0.34.0 on windows (amd64)
> Creating virtualbox VM (CPUs=2, Memory=2048MB, Disk=20000MB) ...
@ Downloading Minikube ISO ...
181.48 MB / 181.48 MB [============================================] 100.00% 0s
- "minikube" IP address is 192.168.99.100
- Configuring Docker as the container runtime ...
- Preparing Kubernetes environment ...
@ Downloading kubelet v1.13.3
@ Downloading kubeadm v1.13.3
- Pulling images required by Kubernetes v1.13.3 ...
- Launching Kubernetes v1.13.3 using kubeadm ...
- Configuring cluster permissions ...
- Verifying component health .....
+ kubectl is now configured to use "minikube"
= Done! Thank you for using minikube!
kubectl run hello-minikube --image=k8s.gcr.io/echoserver:1.10 --port=8080
kubectl expose deployment hello-minikube --type=NodePort
kubectl get pod
minikube service hello-minikube --url
# --> http://192.168.99.100:30930
Invoke-Webrequest http://192.168.99.100:30930
StatusCode : 200
StatusDescription : OK
Content :
Hostname: hello-minikube-6fd785d459-h2llx
Pod Information:
-no pod information available-
Server values:
server_version=nginx: 1.13.3 - lua: 10008
Request Information:
client_address=172.17.0....
RawContent : HTTP/1.1 200 OK
Transfer-Encoding: chunked
Connection: keep-alive
Content-Type: text/plain
Date: Sat, 16 Feb 2019 06:27:14 GMT
Server: echoserver
Hostname: hello-minikube-6fd785d459-h2llx
P...
Forms : {}
Headers : {[Transfer-Encoding, chunked], [Connection, keep-alive], [Content-Type, t
ext/plain], [Date, Sat, 16 Feb 2019 06:27:14 GMT]...}
Images : {}
InputFields : {}
Links : {}
ParsedHtml : mshtml.HTMLDocumentClass
RawContentLength : 517
仮想マシンにSSHログインする
ssh docker@192.168.99.100
tcuser
sudo whoami
# --> root
仮想マシン minikube をシャットダウンする
kubectl delete services hello-minikube
kubectl delete deployment hello-minikube
minikube stop
kubectl の機能を一覧する
# kubectl
kubectl controls the Kubernetes cluster manager.
Find more information at: https://kubernetes.io/docs/reference/kubectl/overview/
Basic Commands (Beginner):
create Create a resource from a file or from stdin.
expose Take a replication controller, service, deployment or pod and expose it as a new Kubernetes Service
run Run a particular image on the cluster
set Set specific features on objects
Basic Commands (Intermediate):
explain Documentation of resources
get Display one or many resources
edit Edit a resource on the server
delete Delete resources by filenames, stdin, resources and names, or by resources and label selector
Deploy Commands:
rollout Manage the rollout of a resource
scale Set a new size for a Deployment, ReplicaSet, Replication
Controller, or Job
autoscale Auto-scale a Deployment, ReplicaSet, or ReplicationController
Cluster Management Commands:
certificate Modify certificate resources.
cluster-info Display cluster info
top Display Resource (CPU/Memory/Storage) usage.
cordon Mark node as unschedulable
uncordon Mark node as schedulable
drain Drain node in preparation for maintenance
taint Update the taints on one or more nodes
Troubleshooting and Debugging Commands:
describe Show details of a specific resource or group of resources
logs Print the logs for a container in a pod
attach Attach to a running container
exec Execute a command in a container
port-forward Forward one or more local ports to a pod
proxy Run a proxy to the Kubernetes API server
cp Copy files and directories to and from containers.
auth Inspect authorization
Advanced Commands:
diff Diff live version against would-be applied version
apply Apply a configuration to a resource by filename or stdin
patch Update field(s) of a resource using strategic merge patch
replace Replace a resource by filename or stdin
wait Experimental: Wait for a specific condition on one or many resources.
convert Convert config files between different API versions
Settings Commands:
label Update the labels on a resource
annotate Update the annotations on a resource
completion Output shell completion code for the specified shell (bash or zsh)
Other Commands:
api-resources Print the supported API resources on the server
api-versions Print the supported API versions on the server, in the form of "group/version"
config Modify kubeconfig files
plugin Provides utilities for interacting with plugins.
version Print the client and server version information
Usage:
kubectl [flags] [options]
Use "kubectl <command> --help" for more information about a given command.
Use "kubectl options" for a list of global command-line options (applies to all commands).
参考資料
Running Kubernetes Locally via Minikube
https://kubernetes.io/docs/setup/minikube/
How do I ssh into the VM for Minikube?
https://stackoverflow.com/questions/38870277/how-do-i-ssh-into-the-vm-for-minikube