Quickly deploy a kubernetes cluster 01/18 Update SLTechnology News&Howtos

Quickly deploy a kubernetes cluster

2025-01-18 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

Shulou(Shulou.com)06/03 Report--

The steps above in k8s-master:

[root@k8s-master ~] # cat / etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

:: 1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.1.111 k8s-master

192.168.1.112 k8s-node1

192.168.1.113 k8s-node2

[root@k8s-master ~] # cat > / etc/sysctl.d/k8s.conf] 2640 -.-Kacher's in 0s

2020-02-12 10:07:18 (716 MB/s) -'/ etc/yum.repos.d/docker-ce.repo' saved [2640ly2640]

[root@k8s-master ~] # yum list docker-ce-- showduplicates | sort-r

* updates: mirrors.aliyun.com

Loaded plugins: fastestmirror

* extras: mirrors.aliyun.com

Docker-ce.x86_64 3Rank 19.03.5-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 19.03.4-3.el7 docker-ce-stable

Docker-ce.x86_64 3VR 19.03.3-3.el7 docker-ce-stable

Docker-ce.x86_64 3vl 19.03.2-3.el7 docker-ce-stable

Docker-ce.x86_64 3VR 19.03.1-3.el7 docker-ce-stable

Docker-ce.x86_64 3vl 19.03.0-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.9-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.8-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.7-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.6-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.5-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.4-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.3-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.2-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.1-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.0-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable

Docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable

Determining fastest mirrors

* base: mirrors.aliyun.com

Available Packages

[root@k8s-master] # yum-y install docker-ce-18.09.9-3.el7

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: mirrors.aliyun.com

* extras: mirrors.aliyun.com

* updates: mirrors.aliyun.com

Resolving Dependencies

-> Running transaction check

-> Package docker-ce.x86_64 3VR 18.09.9-3.el7 will be installed

-- > Processing Dependency: container-selinux > = 2RV 2.74 for package: 3:docker-ce-18.09.9-3.el7.x86_64

-- > Processing Dependency: containerd.io > = 1.2.2-3 for package: 3:docker-ce-18.09.9-3.el7.x86_64

-- > Processing Dependency: docker-ce-cli for package: 3:docker-ce-18.09.9-3.el7.x86_64

-- > Processing Dependency: libcgroup for package: 3:docker-ce-18.09.9-3.el7.x86_64

-> Running transaction check

-> Package container-selinux.noarch 2 2.107-3.el7 will be installed

-- > Processing Dependency: policycoreutils-python for package: 2:container-selinux-2.107-3.el7.noarch

-> Package containerd.io.x86_64 0purl 1.2.10-3.2.el7 will be installed

-> Package docker-ce-cli.x86_64 1 19.03.5-3.el7 will be installed

-> Package libcgroup.x86_64 0RU 0.41-21.el7 will be installed

-> Running transaction check

-> Package policycoreutils-python.x86_64 0Rank 2.5-33.el7 will be installed

-- > Processing Dependency: setools-libs > = 3.3.8-4 for package: policycoreutils-python-2.5-33.el7.x86_64

-- > Processing Dependency: libsemanage-python > = 2.5-14 for package: policycoreutils-python-2.5-33.el7.x86_64

-- > Processing Dependency: audit-libs-python > = 2.1.3-4 for package: policycoreutils-python-2.5-33.el7.x86_64

-- > Processing Dependency: python-IPy for package: policycoreutils-python-2.5-33.el7.x86_64

-> Processing Dependency: libqpol.so.1 (VERS_1.4) (64bit) for package: policycoreutils-python-2.5-33.el7.x86_64

-> Processing Dependency: libqpol.so.1 (VERS_1.2) (64bit) for package: policycoreutils-python-2.5-33.el7.x86_64

-> Processing Dependency: libapol.so.4 (VERS_4.0) (64bit) for package: policycoreutils-python-2.5-33.el7.x86_64

-- > Processing Dependency: checkpolicy for package: policycoreutils-python-2.5-33.el7.x86_64

-> Processing Dependency: libqpol.so.1 () (64bit) for package: policycoreutils-python-2.5-33.el7.x86_64

-> Processing Dependency: libapol.so.4 () (64bit) for package: policycoreutils-python-2.5-33.el7.x86_64

-> Running transaction check

-> Package audit-libs-python.x86_64 0RU 2.8.5-4.el7 will be installed

-> Package checkpolicy.x86_64 0Rank 2.5-8.el7 will be installed

-> Package libsemanage-python.x86_64 0Rank 2.5-14.el7 will be installed

-> Package python-IPy.noarch 0RU 0.75-6.el7 will be installed

-> Package setools-libs.x86_64 0RU 3.3.8-4.el7 will be installed

-> Finished Dependency Resolution

Dependencies Resolved

Package Arch Version Repository Size

Installing:

Docker-ce x86'64 3 18.09.9-3.el7 docker-ce-stable 21 M

Installing for dependencies:

Audit-libs-python x8631 64 2.8.5-4.el7 base 76k

Checkpolicy x8631 64 2.5k-8.el7 base 295k

Container-selinux noarch 2vl 2.107-3.el7 extras 39k

Containerd.io x8631 64 1.2.10-3.2.el7 docker-ce-stable 23 M

Docker-ce-cli x86x 64 1purl 19.03.5-3.el7 docker-ce-stable 39 m

Libcgroup x8631 64 0.41-21.el7 base 66k

Libsemanage-python x86 million 64 2.5-14.el7 base 113k

Policycoreutils-python x8631 64 2.5k-33.el7 base 457k

Python-IPy noarch 0.75-6.el7 base 32k

Setools-libs x8631 64 3.3.8-4.el7 base 620k

Transaction Summary

Install 1 Package (+ 10 Dependent packages)

Total download size: 85 M

Installed size: 354 M

Downloading packages:

(1go 11): container-selinux-2.107-3.el7.noarch.rpm | 39 kB 00:00

(2go 11): audit-libs-python-2.8.5-4.el7.x86_64.rpm | 76 kB 00:00

(3 kB 11): checkpolicy-2.5-8.el7.x86_64.rpm | 295 kB 00:01

Warning: / var/cache/yum/x86_64/7/docker-ce-stable/packages/docker-ce-18.09.9-3.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY

Public key for docker-ce-18.09.9-3.el7.x86_64.rpm is not installed

(4 take 11): docker-ce-18.09.9-3.el7.x86_64.rpm | 21 MB 00:49

(5go 11): libcgroup-0.41-21.el7.x86_64.rpm | 66 kB 00:01

(6 take 11): python-IPy-0.75-6.el7.noarch.rpm | 32 kB 00:00

(7 take 11): libsemanage-python-2.5-14.el7.x86_64.rpm | 113 kB 00:02

(8 MB 11): containerd.io-1.2.10-3.2.el7.x86_64.rpm | 23 MB at 00:52

(9 kB 11): setools-libs-3.3.8-4.el7.x86_64.rpm | 620 kB 00:01

(10 take 11): policycoreutils-python-2.5-33.el7.x86_64.rpm | 457 kB 00:04

(11 take 11): docker-ce-cli-19.03.5-3.el7.x86_64.rpm | 39 MB 00:26

Total 1.1 MB/s | 85 MB 01:15

Retrieving key from https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

Importing GPG key 0x621E9F35:

Userid: "Docker Release (CE rpm)"

Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35

From: https://mirrors.aliyun.com/docker-ce/linux/centos/gpg

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

Installing: libcgroup-0.41-21.el7.x86_64 1Comp11

Installing: setools-libs-3.3.8-4.el7.x86_64 2 Compact 11

Installing: 1:docker-ce-cli-19.03.5-3.el7.x86_64 3Comp11

Installing: audit-libs-python-2.8.5-4.el7.x86_64 4 Compact 11

Installing: python-IPy-0.75-6.el7.noarch 5Comp11

Installing: libsemanage-python-2.5-14.el7.x86_64 6Comp11

Installing: checkpolicy-2.5-8.el7.x86_64 7 Compact 11

Installing: policycoreutils-python-2.5-33.el7.x86_64 8Comp11

Installing: 2:container-selinux-2.107-3.el7.noarch 9 Compact 11

Setsebool: SELinux is disabled.

Installing: containerd.io-1.2.10-3.2.el7.x86_64 10 Universe 11

Installing: 3:docker-ce-18.09.9-3.el7.x86_64 11 Compact 11

Verifying: checkpolicy-2.5-8.el7.x86_64 1Comp11

Verifying: policycoreutils-python-2.5-33.el7.x86_64 2 Compact 11

Verifying: libsemanage-python-2.5-14.el7.x86_64 3Comp11

Verifying: 2:container-selinux-2.107-3.el7.noarch 4 Compact 11

Verifying: 3:docker-ce-18.09.9-3.el7.x86_64 5Comp11

Verifying: python-IPy-0.75-6.el7.noarch 6Comp11

Verifying: audit-libs-python-2.8.5-4.el7.x86_64 7 Compact 11

Verifying: containerd.io-1.2.10-3.2.el7.x86_64 8Comp11

Verifying: 1:docker-ce-cli-19.03.5-3.el7.x86_64 9 Compact 11

Verifying: setools-libs-3.3.8-4.el7.x86_64 10 Universe 11

Verifying: libcgroup-0.41-21.el7.x86_64 11 Compact 11

Installed:

Docker-ce.x86_64 3Rank 18.09.9-3.el7

Dependency Installed:

Audit-libs-python.x86_64 0RO 2.8.5-4.el7

Checkpolicy.x86_64 0RO 2.5-8.el7

Container-selinux.noarch 2Vol 2.107-3.el7

Containerd.io.x86_64 0VOR 1.2.10-3.2.el7

Docker-ce-cli.x86_64 1Rank 19.03.5-3.el7

Libcgroup.x86_64 0RO 0.41-21.el7

Libsemanage-python.x86_64 0RO 2.5-14.el7

Policycoreutils-python.x86_64 0RO 2.5-33.el7

Python-IPy.noarch 0RO 0.75-6.el7

Setools-libs.x86_64 0RO 3.3.8-4.el7

Complete!

[root@k8s-master ~] # systemctl enable docker

Created symlink from / etc/systemd/system/multi-user.target.wants/docker.service to / usr/lib/systemd/system/docker.service.

[root@k8s-master ~] # systemctl start docker

[root@k8s-master ~] # systemctl status docker

● docker.service-Docker Application Container Engine

Loaded: loaded (/ usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)

Active: active (running) since Wed 2020-02-12 10:10:03 CST; 6s ago

Docs: https://docs.docker.com

Main PID: 1911 (dockerd)

Tasks: 12

Memory: 39.3M

CGroup: / system.slice/docker.service

└─ 1911 / usr/bin/dockerd-H fd://-- containerd=/run/containerd/cont...

Feb 12 10:10:02 k8s-master dockerd [1911]: time= "2020-02-12T10:10:02.34888797...c"

Feb 12 10:10:02 k8s-master dockerd [1911]: time= "2020-02-12T10:10:02.34901014...c"

Feb 12 10:10:02 k8s-master dockerd [1911]: time= "2020-02-12T10 time= 02.76509531..."

Feb 12 10:10:02 k8s-master dockerd [1911]: time= "2020-02-12T10 time= 02.76605705..."

Feb 12 10:10:02 k8s-master dockerd [1911]: time= "2020-02-12T10 time= 02.99515744."

Feb 12 10:10:03 k8s-master dockerd [1911]: time= "2020-02-12T10 time= 03.06445846."

Feb 12 10:10:03 k8s-master dockerd [1911]: time= "2020-02-12T10:10:03.10487518...9"

Feb 12 10:10:03 k8s-master dockerd [1911]: time= "2020-02-12T10 time= 03.10503137..."

Feb 12 10:10:03 k8s-master dockerd [1911]: time= "2020-02-12T10 time= 03.11493511..."

Feb 12 10:10:03 k8s-master systemd [1]: Started Docker Application Container...e.

Hint: Some lines were ellipsized, use-l to show in full.

[root@k8s-master ~] # curl-sSL https://get.daocloud.io/daotools/set_mirror.sh | sh-s http://f1361db2.m.daocloud.io

Docker version > = 1.12

{"registry-mirrors": ["http://f1361db2.m.daocloud.io"]}"

Success.

You need to restart docker to take effect: sudo systemctl restart docker

[root@k8s-master ~] # sudo systemctl restart docker

[root@k8s-master ~] # cat > / etc/yum.repos.d/kubernetes.repo [kubernetes]

> name=Kubernetes

Baseurl= https://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64

> enabled=1

> gpgcheck=0

> repo_gpgcheck=0

Gpgkey= https://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg https://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg

> EOF

[root@k8s-master ~] # yum install-y kubelet-1.16.0 kubeadm-1.16.0 kubectl-1.16.0

Loaded plugins: fastestmirror

Loading mirror speeds from cached hostfile

* base: mirrors.aliyun.com

* extras: mirrors.aliyun.com

* updates: mirrors.aliyun.com

Kubernetes | 1.4 kB 00:00

Kubernetes/primary | 63 kB 00:00

Kubernetes 460/460

Resolving Dependencies

-> Running transaction check

-> Package kubeadm.x86_64 01.16.0-0 will be installed

-- > Processing Dependency: kubernetes-cni > = 0.7.5 for package: kubeadm-1.16.0-0.x86_64

-- > Processing Dependency: cri-tools > = 1.13.0 for package: kubeadm-1.16.0-0.x86_64

-> Package kubectl.x86_64 01.16.0-0 will be installed

-> Package kubelet.x86_64 01.16.0-0 will be installed

-- > Processing Dependency: socat for package: kubelet-1.16.0-0.x86_64

-- > Processing Dependency: conntrack for package: kubelet-1.16.0-0.x86_64

-> Running transaction check

-> Package conntrack-tools.x86_64 0RU 1.4.4-5.el7_7.2 will be installed

-> Processing Dependency: libnetfilter_cttimeout.so.1 (LIBNETFILTER_CTTIMEOUT_1.1) (64bit) for package: conntrack-tools-1.4.4-5.el7_7.2.x86_64

-> Processing Dependency: libnetfilter_cttimeout.so.1 (LIBNETFILTER_CTTIMEOUT_1.0) (64bit) for package: conntrack-tools-1.4.4-5.el7_7.2.x86_64

-> Processing Dependency: libnetfilter_cthelper.so.0 (LIBNETFILTER_CTHELPER_1.0) (64bit) for package: conntrack-tools-1.4.4-5.el7_7.2.x86_64

-> Processing Dependency: libnetfilter_queue.so.1 () (64bit) for package: conntrack-tools-1.4.4-5.el7_7.2.x86_64

-> Processing Dependency: libnetfilter_cttimeout.so.1 () (64bit) for package: conntrack-tools-1.4.4-5.el7_7.2.x86_64

-> Processing Dependency: libnetfilter_cthelper.so.0 () (64bit) for package: conntrack-tools-1.4.4-5.el7_7.2.x86_64

-> Package cri-tools.x86_64 01.13.0-0 will be installed

-> Package kubernetes-cni.x86_64 0RU 0.7.5-0 will be installed

-> Package socat.x86_64 0RU 1.7.3.2-2.el7 will be installed

-> Running transaction check

-> Package libnetfilter_cthelper.x86_64 0vl 1.0.0-10.el7_7.1 will be installed

-> Package libnetfilter_cttimeout.x86_64 0vl 1.0.0-6.el7_7.1 will be installed

-> Package libnetfilter_queue.x86_64 0RU 1.0.2-2.el7_2 will be installed

-> Finished Dependency Resolution

Dependencies Resolved

Package Arch Version Repository Size

Installing:

Kubeadm x8631 64 1.16.0-0 kubernetes 9.5m

Kubectl x8631 64 1.16.0-0 kubernetes 10 M

Kubelet x8631 64 1.16.0-0 kubernetes 22 M

Installing for dependencies:

Conntrack-tools x8631 64 1.4.4-5.el7_7.2 updates 187k

Cri-tools x86 million 64 1.13.0-0 kubernetes 5.1m

Kubernetes-cni x86 million 64 0.7.5-0 kubernetes 10 M

Libnetfilter_cthelper x8631 64 1.0.0-10.el7_7.1 updates 18k

Libnetfilter_cttimeout x8631 64 1.0.0-6.el7_7.1 updates 18k

Libnetfilter_queue x8631 64 1.0.2-2.el7_2 base 23k

Socat x8631 64 1.7.3.2-2.el7 base 290k

Transaction Summary

Install 3 Packages (+ 7 Dependent packages)

Total download size: 57 M

Installed size: 262 M

Downloading packages:

(1go 10): conntrack-tools-1.4.4-5.el7_7.2.x86_64.rpm | 187 kB 00:00

(2apt 10): 14bfe6e75a9efc8eca3f638eb22c7e2ce759c67f95b43b16fa | 5.1 MB 00:30

(3x10): be6a085d0285f83d74429540b878a137a9341ba34dbd85dfba | 10 MB 00:06

(4 take 10): 697ad1a31f01e90f44ad3f0c8fe06f32d7bdd3b227fcf70527 | 9.5 MB 00:43

(5 kB 10): libnetfilter_cthelper-1.0.0-10.el7_7.1.x86_64.rpm | 18 kB at 00:01

(6 take 10): libnetfilter_queue-1.0.2-2.el7_2.x86_64.rpm | 23 kB 00:01

(7apt 10): libnetfilter_cttimeout-1.0.0-6.el7_7.1.x86_64.rpm | 18 kB 00:01

(8x10): d58731a80db4214f3f1021f5676fe7f4da7239fc4a48c60f15 | 22 MB 00:11

(9 take 10): 548a0dcd865c16a50980420ddfa5fbccb8b59621179798e6dc | 10 MB 00:05

(10 take 10): socat-1.7.3.2-2.el7.x86_64.rpm | 290 kB 00:03

Total 1.2 MB/s | 57 MB 00:49

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

Installing: socat-1.7.3.2-2.el7.x86_64 1 Compact 10

Installing: kubectl-1.16.0-0.x86_64 2 Compact 10

Installing: libnetfilter_cttimeout-1.0.0-6.el7_7.1.x86_64 3 Compact 10

Installing: cri-tools-1.13.0-0.x86_64 4 Compact 10

Installing: libnetfilter_queue-1.0.2-2.el7_2.x86_64 5 Compact 10

Installing: libnetfilter_cthelper-1.0.0-10.el7_7.1.x86_64 6 Compact 10

Installing: conntrack-tools-1.4.4-5.el7_7.2.x86_64 7 Compact 10

Installing: kubernetes-cni-0.7.5-0.x86_64 8 Compact 10

Installing: kubelet-1.16.0-0.x86_64 9 Compact 10

Installing: kubeadm-1.16.0-0.x86_64 10 Compact 10

Verifying: libnetfilter_cthelper-1.0.0-10.el7_7.1.x86_64 1 Compact 10

Verifying: conntrack-tools-1.4.4-5.el7_7.2.x86_64 2 Compact 10

Verifying: libnetfilter_queue-1.0.2-2.el7_2.x86_64 3 Compact 10

Verifying: kubelet-1.16.0-0.x86_64 4 Compact 10

Verifying: cri-tools-1.13.0-0.x86_64 5 Compact 10

Verifying: libnetfilter_cttimeout-1.0.0-6.el7_7.1.x86_64 6 Compact 10

Verifying: kubectl-1.16.0-0.x86_64 7 Compact 10

Verifying: kubernetes-cni-0.7.5-0.x86_64 8 Compact 10

Verifying: socat-1.7.3.2-2.el7.x86_64 9 Compact 10

Verifying: kubeadm-1.16.0-0.x86_64 10 Compact 10

Installed:

Kubeadm.x86_64 0VOR 1.16.0-0 kubectl.x86_64 0RV 1.16.0-0 kubelet.x86_64 0RO kubelet.x86_64 1.16.0-0

Dependency Installed:

Conntrack-tools.x86_64 0RO 1.4.4-5.el7_7.2

Cri-tools.x86_64 0pur1.13.0-0

Kubernetes-cni.x86_64 0RO 0.7.5-0

Libnetfilter_cthelper.x86_64 0RO 1.0.0-10.el7_7.1

Libnetfilter_cttimeout.x86_64 0RO 1.0.0-6.el7_7.1

Libnetfilter_queue.x86_64 0VOR 1.0.2-2.el7_2

Socat.x86_64 0VOR 1.7.3.2-2.el7

Complete!

[root@k8s-master ~] # systemctl enable kubelet

Created symlink from / etc/systemd/system/multi-user.target.wants/kubelet.service to / usr/lib/systemd/system/kubelet.service.

[root@k8s-master ~] # kubeadm init\

-- apiserver-advertise-address=192.168.1.111\

-- image-repository registry.aliyuncs.com/google_containers\

-- kubernetes-version v1.16.0\

-- service-cidr=10.1.0.0/16\

-- pod-network-cidr=10.244.0.0/16

[init] Using Kubernetes version: v1.16.0

[preflight] Running pre-flight checks

WARNING IsDockerSystemdCheck: detected "cgroupfs" as the Docker cgroup driver. The recommended driver is "systemd". Please follow the guide at https://kubernetes.io/docs/setup/cri/

[preflight] Pulling images required for setting up a Kubernetes cluster

[preflight] This might take a minute or two, depending on the speed of your internet connection

[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'

[kubelet-start] Writing kubelet environment file with flags to file "/ var/lib/kubelet/kubeadm-flags.env"

[kubelet-start] Writing kubelet configuration to file "/ var/lib/kubelet/config.yaml"

[kubelet-start] Activating the kubelet service

[certs] Using certificateDir folder "/ etc/kubernetes/pki"

[certs] Generating "ca" certificate and key

[certs] Generating "apiserver" certificate and key

[certs] apiserver serving cert is signed for DNS names [k8s-master kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local] and IPs [10.1.0.1 192.168.1.111]

[certs] Generating "apiserver-kubelet-client" certificate and key

[certs] Generating "front-proxy-ca" certificate and key

[certs] Generating "front-proxy-client" certificate and key

[certs] Generating "etcd/ca" certificate and key

[certs] Generating "etcd/server" certificate and key

[certs] etcd/server serving cert is signed for DNS names [k8s-master localhost] and IPs [192.168.1.111 127.0.0.1:: 1]

[certs] Generating "etcd/peer" certificate and key

[certs] etcd/peer serving cert is signed for DNS names [k8s-master localhost] and IPs [192.168.1.111 127.0.0.1:: 1]

[certs] Generating "etcd/healthcheck-client" certificate and key

[certs] Generating "apiserver-etcd-client" certificate and key

[certs] Generating "sa" key and public key

[kubeconfig] Using kubeconfig folder "/ etc/kubernetes"

[kubeconfig] Writing "admin.conf" kubeconfig file

[kubeconfig] Writing "kubelet.conf" kubeconfig file

[kubeconfig] Writing "controller-manager.conf" kubeconfig file

[kubeconfig] Writing "scheduler.conf" kubeconfig file

[control-plane] Using manifest folder "/ etc/kubernetes/manifests"

[control-plane] Creating static Pod manifest for "kube-apiserver"

[control-plane] Creating static Pod manifest for "kube-controller-manager"

[control-plane] Creating static Pod manifest for "kube-scheduler"

[etcd] Creating static Pod manifest for local etcd in "/ etc/kubernetes/manifests"

[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/ etc/kubernetes/manifests". This can take up to 4m0s

[apiclient] All control plane components are healthy after 38.503417 seconds

[upload-config] Storing the configuration used in ConfigMap "kubeadm-config" in the "kube-system" Namespace

[kubelet] Creating a ConfigMap "kubelet-config-1.16" in namespace kube-system with the configuration for the kubelets in the cluster

[upload-certs] Skipping phase. Please see-upload-certs

[mark-control-plane] Marking the node k8s-master as control-plane by adding the label "node-role.kubernetes.io/master=''"

[mark-control-plane] Marking the node k8s-master as control-plane by adding the taints [node-role.kubernetes.io/master:NoSchedule]

[bootstrap-token] Using token: 3a8akv.5sdpd199534o5knk

[bootstrap-token] Configuring bootstrap tokens, cluster-info ConfigMap, RBAC Roles

[bootstrap-token] configured RBAC rules to allow Node Bootstrap tokens to post CSRs in order for nodes to get long term certificate credentials

[bootstrap-token] configured RBAC rules to allow the csrapprover controller automatically approve CSRs from a Node Bootstrap Token

[bootstrap-token] configured RBAC rules to allow certificate rotation for all node client certificates in the cluster

[bootstrap-token] Creating the "cluster-info" ConfigMap in the "kube-public" namespace

[addons] Applied essential addon: CoreDNS

[addons] Applied essential addon: kube-proxy

Your Kubernetes control-plane has initialized successfully!

To start using your cluster, you need to run the following as a regular user:

Mkdir-p $HOME/.kube

Sudo cp-I / etc/kubernetes/admin.conf $HOME/.kube/config

Sudo chown $(id-u): $(id-g) $HOME/.kube/config

You should now deploy a pod network to the cluster.

Run "kubectl apply-f [podnetwork] .yaml" with one of the options listed at:

Https://kubernetes.io/docs/concepts/cluster-administration/addons/

Then you can join any number of worker nodes by running the following on each as root:

Kubeadm join 192.168.1.111 6443-- token 3a8akv.5sdpd199534o5knk\

-- discovery-token-ca-cert-hash sha256:beb8860fe8f6fb4abaf23fa0570142fb6b81b2c3bf8a9a228bae884184c7035e

[root@k8s-master ~] # mkdir-p $HOME/.kube

[root@k8s-master ~] # sudo cp-I / etc/kubernetes/admin.conf $HOME/.kube/config

[root@k8s-master ~] # sudo chown $(id-u): $(id-g) $HOME/.kube/config

[root@k8s-master ~] # kubectl get nodes

NAME STATUS ROLES AGE VERSION

K8s-master NotReady master 101s v1.16.0

K8s-node1 NotReady 18s v1.16.0

K8s-node2 NotReady 14s v1.16.0

[root@k8s-master ~] # cd / usr/local/src/

[root@k8s-master src] # rz-y

Rz waiting to receive.

Starting zmodem transfer. Press Ctrl+C to cancel.

Transferring dashboard.yaml...

100% 6 KB 6 KB/sec 00:00:01 0 Errors

Transferring kube-flannel.yaml...

100% 4 KB 4 KB/sec 00:00:01 0 Errors

[root@k8s-master src] # ls

Dashboard.yaml kube-flannel.yaml

[root@k8s-master src] # kubectl apply-f kube-flannel.yaml

Podsecuritypolicy.policy/psp.flannel.unprivileged created

Clusterrole.rbac.authorization.k8s.io/flannel created

Clusterrolebinding.rbac.authorization.k8s.io/flannel created

Serviceaccount/flannel created

Configmap/kube-flannel-cfg created

Daemonset.apps/kube-flannel-ds-amd64 created

[root@k8s-master src] # kubectl get pods-n kube-system

NAME READY STATUS RESTARTS AGE

Coredns-58cc8c89f4-7s2n9 0bat 1 Pending 0 2m50s

Coredns-58cc8c89f4-h7d26 0/1 Pending 0 2m50s

Etcd-k8s-master 1/1 Running 0 2m3s

Kube-apiserver-k8s-master 1/1 Running 0 2m1s

Kube-controller-manager-k8s-master 1/1 Running 0 113s

Kube-flannel-ds-amd64-75824 0max 1 Init:0/1 0 8s

Kube-flannel-ds-amd64-7snx6 0bat 1 Init:0/1 0 8s

Kube-flannel-ds-amd64-85vf8 0bat 1 Init:0/1 0 8s

Kube-proxy-62g7k 1/1 Running 0 107s

Kube-proxy-rlz5r 1/1 Running 0 103s

Kube-proxy-tqrnv 1/1 Running 0 2m50s

Kube-scheduler-k8s-master 1/1 Running 0 2m5s

Wait about ten minutes.

[root@k8s-master src] # kubectl get pods-n kube-system

NAME READY STATUS RESTARTS AGE

Coredns-58cc8c89f4-7s2n9 1 7s2n9 1 Running 0 5m24s

Coredns-58cc8c89f4-h7d26 1/1 Running 0 5m24s

Etcd-k8s-master 1/1 Running 0 4m37s

Kube-apiserver-k8s-master 1/1 Running 0 4m35s

Kube-controller-manager-k8s-master 1/1 Running 0 4m27s

Kube-flannel-ds-amd64-75824 1 Running 0 2m42s

Kube-flannel-ds-amd64-7snx6 1 7snx6 1 Running 0 2m42s

Kube-flannel-ds-amd64-85vf8 1 85vf8 1 Running 0 2m42s

Kube-proxy-62g7k 1/1 Running 0 4m21s

Kube-proxy-rlz5r 1/1 Running 0 4m17s

Kube-proxy-tqrnv 1/1 Running 0 5m24s

Kube-scheduler-k8s-master 1/1 Running 0 4m39s

[root@k8s-master src] # kubectl get nodes

NAME STATUS ROLES AGE VERSION

K8s-master Ready master 5m45s v1.16.0

K8s-node1 Ready 4m22s v1.16.0

K8s-node2 Ready 4m18s v1.16.0

[root@k8s-master src] # kubectl create deployment nginx-- image=nginx

Deployment.apps/nginx created

[root@k8s-master src] # kubectl expose deployment nginx-port=80-type=NodePort

Service/nginx exposed

[root@k8s-master src] # kubectl get pod,svc

NAME READY STATUS RESTARTS AGE

Pod/nginx-86c57db685-wpkxv 0/1 ContainerCreating 0 15s

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

Service/kubernetes ClusterIP 10.1.0.1 443/TCP 6m34s

Service/nginx NodePort 10.1.131.49 80:32232/TCP 7s

Access address: http://NodeIP:Port

192.168.1.112:32232

[root@k8s-master src] # kubectl get nodes

NAME STATUS ROLES AGE VERSION

K8s-master Ready master 7m4s v1.16.0

K8s-node1 Ready 5m41s v1.16.0

K8s-node2 Ready 5m37s v1.16.0

[root@k8s-master src] # kubectl get pods-n kube-system

NAME READY STATUS RESTARTS AGE

Coredns-58cc8c89f4-7s2n9 1 7s2n9 1 Running 0 6m48s

Coredns-58cc8c89f4-h7d26 1/1 Running 0 6m48s

Etcd-k8s-master 1/1 Running 0 6m1s

Kube-apiserver-k8s-master 1/1 Running 0 5m59s

Kube-controller-manager-k8s-master 1/1 Running 0 5m51s

Kube-flannel-ds-amd64-75824 1 Running 0 4m6s

Kube-flannel-ds-amd64-7snx6 1 7snx6 1 Running 0 4m6s

Kube-flannel-ds-amd64-85vf8 1 85vf8 1 Running 0 4m6s

Kube-proxy-62g7k 1/1 Running 0 5m45s

Kube-proxy-rlz5r 1/1 Running 0 5m41s

Kube-proxy-tqrnv 1/1 Running 0 6m48s

Kube-scheduler-k8s-master 1/1 Running 0 6m3s

[root@k8s-master src] # kubectl get nodes

NAME STATUS ROLES AGE VERSION

K8s-master Ready master 7m58s v1.16.0

K8s-node1 Ready 6m35s v1.16.0

K8s-node2 Ready 6m31s v1.16.0

[root@k8s-master src] # kubectl get pod,svc

NAME READY STATUS RESTARTS AGE

Pod/nginx-86c57db685-wpkxv 1/1 Running 0 98s

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

Service/kubernetes ClusterIP 10.1.0.1 443/TCP 7m57s

Service/nginx NodePort 10.1.131.49 80:32232/TCP 90s

[root@k8s-master src] # ls

Dashboard.yaml kube-flannel.yaml

[root@k8s-master src] # kubectl apply-f dashboard.yaml

Namespace/kubernetes-dashboard created

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

[root@k8s-master src] # kubectl get pods-n kubernetes-dashboard

NAME READY STATUS RESTARTS AGE

Dashboard-metrics-scraper-566cddb686-jhhgm 1/1 Running 0 77s

Kubernetes-dashboard-7b5bf5d559-b6n4d 1/1 Running 0 77s

[root@k8s-master src] # kubectl create serviceaccount dashboard-admin-n kubernetes-dashboard

Serviceaccount/dashboard-admin created

[root@k8s-master src] # kubectl create clusterrolebinding dashboard-admin-clusterrole=cluster-admin-serviceaccount=kubernetes-dashboard:dashboard-admin

Clusterrolebinding.rbac.authorization.k8s.io/dashboard-admin created

[root@k8s-master src] # kubectl describe secrets-n kubernetes-dashboard $(kubectl-n kubernetes-dashboard get secret | awk'/ dashboard-admin/ {print $1}')

Name: dashboard-admin-token-llqd8

Namespace: kubernetes-dashboard

Labels:

Annotations: kubernetes.io/service-account.name: dashboard-admin

Kubernetes.io/service-account.uid: a8609459-37ce-4b92-8ca7-faa439e4d886

Type: kubernetes.io/service-account-token

Data

Ca.crt: 1025 bytes

Namespace: 20 bytes

Token: eyJhbGciOiJSUzI1NiIsImtpZCI6IjlzWmE0ZzNJaEpVbzJrNFRSdGpiUlBsSTBpcVBzbzBmalFyOUtuSkJJQ0EifQ.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.OZyk7O4i_oT0NRZpKuztTDtMdZWE9fiQcix-F3Ea4Bbucw9L2kemmUiCI-jr6Z9IqjXv2i_0ZexIl8WgVHb2XJRlWY4bSdgZveWbokF1JqiVmEF8LyTwIT89eI6g39J3VCbMls7hLZ_Cq3zf5m8IAFWdhF2twIP2poCx9LczQ_YDaOJrkpLS-MOjVsksJZbM1gcTlRmHqy6ng2597mgsju-SlEJ8u1M3nBRyEVPIz3SbvAsOPGuoetPN-sZaep-TCcfuq6i85J0kpjekpIvMNrm-9jEgjmEY8FWVdkjBVcQqBjdChuD_xEwaKDjEncXEFq02WD5SGfxa_Q-vrAjF1g

You must use Firefox:

Access address: http://NodeIP:30001

Dashboard deployed successfully

The deployment steps for k8s-node1 and k8s-node2 are the same

[root@k8s-node2 ~] # getenforce

Disabled

[root@k8s-node2 ~] # cat > / etc/sysctl.d/k8s.conf] 2640 -.-Kacher's in 0s

2020-02-12 10:07:18 (641 MB/s) -'/ etc/yum.repos.d/docker-ce.repo' saved [2640ly2640]

[root@k8s-node2 ~] # yum list docker-ce-- showduplicates | sort-r

* updates: mirrors.aliyun.com

Loaded plugins: fastestmirror

* extras: mirrors.aliyun.com

Docker-ce.x86_64 3Rank 19.03.5-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 19.03.4-3.el7 docker-ce-stable

Docker-ce.x86_64 3VR 19.03.3-3.el7 docker-ce-stable

Docker-ce.x86_64 3vl 19.03.2-3.el7 docker-ce-stable

Docker-ce.x86_64 3VR 19.03.1-3.el7 docker-ce-stable

Docker-ce.x86_64 3vl 19.03.0-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.9-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.8-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.7-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.6-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.5-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.4-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.3-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.2-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.1-3.el7 docker-ce-stable

Docker-ce.x86_64 3Rank 18.09.0-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.3.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.2.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.1.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.06.0.ce-3.el7 docker-ce-stable

Docker-ce.x86_64 18.03.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 18.03.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.12.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.12.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.09.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.09.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.06.2.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.06.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.06.0.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.03.3.ce-1.el7 docker-ce-stable

Docker-ce.x86_64 17.03.2.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.03.1.ce-1.el7.centos docker-ce-stable

Docker-ce.x86_64 17.03.0.ce-1.el7.centos docker-ce-stable

Determining fastest mirrors

* base: mirrors.aliyun.com

Available Packages

[root@k8s-node2] # yum-y install docker-ce-18.09.9-3.el7