快速部署一个kubernetes集群

发布时间：2020-05-07 23:46:29 来源：网络阅读：248 作者：陈继松栏目：系统运维

快速部署一个kubernetes集群

k8s-master上面的步骤：

[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 << EOF

net.bridge.bridge-nf-call-ip6tables = 1

net.bridge.bridge-nf-call-iptables = 1

EOF

[root@k8s-master ~]# cat /etc/sysctl.d/k8s.conf

net.bridge.bridge-nf-call-ip6tables = 1

net.bridge.bridge-nf-call-iptables = 1

[root@k8s-master ~]# sysctl --system

* Applying /usr/lib/sysctl.d/00-system.conf ...

* Applying /usr/lib/sysctl.d/10-default-yama-scope.conf ...

kernel.yama.ptrace_scope = 0

* Applying /usr/lib/sysctl.d/50-default.conf ...

kernel.sysrq = 16

kernel.core_uses_pid = 1

net.ipv4.conf.default.rp_filter = 1

net.ipv4.conf.all.rp_filter = 1

net.ipv4.conf.default.accept_source_route = 0

net.ipv4.conf.all.accept_source_route = 0

net.ipv4.conf.default.promote_secondaries = 1

net.ipv4.conf.all.promote_secondaries = 1

fs.protected_hardlinks = 1

fs.protected_symlinks = 1

* Applying /etc/sysctl.d/99-sysctl.conf ...

* Applying /etc/sysctl.d/k8s.conf ...

* Applying /etc/sysctl.conf ...

[root@k8s-master ~]# wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo

--2020-02-12 10:07:18-- https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 119.96.207.102, 119.96.207.101, 116.211.224.248, ...

Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|119.96.207.102|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 2640 (2.6K) [application/octet-stream]

Saving to: ‘/etc/yum.repos.d/docker-ce.repo’

100%[======================================>] 2,640 --.-K/s in 0s

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

[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 3:19.03.5-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.0-3.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 3:18.09.9-3.el7 will be installed

--> Processing Dependency: container-selinux >= 2:2.74 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 0:1.2.10-3.2.el7 will be installed

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

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

--> Running transaction check

---> Package policycoreutils-python.x86_64 0:2.5-33.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 0:2.8.5-4.el7 will be installed

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

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

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

---> Package setools-libs.x86_64 0:3.3.8-4.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 x86_64 2.8.5-4.el7 base 76 k

checkpolicy x86_64 2.5-8.el7 base 295 k

container-selinux noarch 2:2.107-3.el7 extras 39 k

containerd.io x86_64 1.2.10-3.2.el7 docker-ce-stable 23 M

docker-ce-cli x86_64 1:19.03.5-3.el7 docker-ce-stable 39 M

libcgroup x86_64 0.41-21.el7 base 66 k

libsemanage-python x86_64 2.5-14.el7 base 113 k

policycoreutils-python x86_64 2.5-33.el7 base 457 k

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

setools-libs x86_64 3.3.8-4.el7 base 620 k

Transaction Summary

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

Install 1 Package (+10 Dependent packages)

Total download size: 85 M

Installed size: 354 M

Downloading packages:

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

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

(3/11): 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

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

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

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

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

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

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

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

(11/11): 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) <docker@docker.com>"

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 1/11

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

Installing : 1:docker-ce-cli-19.03.5-3.el7.x86_64 3/11

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

Installing : python-IPy-0.75-6.el7.noarch 5/11

Installing : libsemanage-python-2.5-14.el7.x86_64 6/11

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

Installing : policycoreutils-python-2.5-33.el7.x86_64 8/11

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

setsebool: SELinux is disabled.

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

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

Verifying : checkpolicy-2.5-8.el7.x86_64 1/11

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

Verifying : libsemanage-python-2.5-14.el7.x86_64 3/11

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

Verifying : 3:docker-ce-18.09.9-3.el7.x86_64 5/11

Verifying : python-IPy-0.75-6.el7.noarch 6/11

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

Verifying : containerd.io-1.2.10-3.2.el7.x86_64 8/11

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

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

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

Installed:

docker-ce.x86_64 3:18.09.9-3.el7

Dependency Installed:

audit-libs-python.x86_64 0:2.8.5-4.el7

checkpolicy.x86_64 0:2.5-8.el7

container-selinux.noarch 2:2.107-3.el7

containerd.io.x86_64 0:1.2.10-3.2.el7

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

libcgroup.x86_64 0:0.41-21.el7

libsemanage-python.x86_64 0:2.5-14.el7

policycoreutils-python.x86_64 0:2.5-33.el7

python-IPy.noarch 0:0.75-6.el7

setools-libs.x86_64 0:3.3.8-4.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="2020-02-12T10:10:02.76509531..."

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

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

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

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="2020-02-12T10:10:03.10503137..."

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

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 << EOF

> [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 0:1.16.0-0 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 0:1.16.0-0 will be installed

---> Package kubelet.x86_64 0:1.16.0-0 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 0:1.4.4-5.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 0:1.13.0-0 will be installed

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

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

--> Running transaction check

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

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

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

--> Finished Dependency Resolution

Dependencies Resolved

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

Package Arch Version Repository Size

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

Installing:

kubeadm x86_64 1.16.0-0 kubernetes 9.5 M

kubectl x86_64 1.16.0-0 kubernetes 10 M

kubelet x86_64 1.16.0-0 kubernetes 22 M

Installing for dependencies:

conntrack-tools x86_64 1.4.4-5.el7_7.2 updates 187 k

cri-tools x86_64 1.13.0-0 kubernetes 5.1 M

kubernetes-cni x86_64 0.7.5-0 kubernetes 10 M

libnetfilter_cthelper x86_64 1.0.0-10.el7_7.1 updates 18 k

libnetfilter_cttimeout x86_64 1.0.0-6.el7_7.1 updates 18 k

libnetfilter_queue x86_64 1.0.2-2.el7_2 base 23 k

socat x86_64 1.7.3.2-2.el7 base 290 k

Transaction Summary

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

Install 3 Packages (+7 Dependent packages)

Total download size: 57 M

Installed size: 262 M

Downloading packages:

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

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

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

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

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

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

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

(8/10): d58731a80db4214f3f1021f5676fe7f4da7239fc4a48c60f15 | 22 MB 00:11

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

(10/10): 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 1/10

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Installed:

kubeadm.x86_64 0:1.16.0-0 kubectl.x86_64 0:1.16.0-0 kubelet.x86_64 0:1.16.0-0

Dependency Installed:

conntrack-tools.x86_64 0:1.4.4-5.el7_7.2

cri-tools.x86_64 0:1.13.0-0

kubernetes-cni.x86_64 0:0.7.5-0

libnetfilter_cthelper.x86_64 0:1.0.0-10.el7_7.1

libnetfilter_cttimeout.x86_64 0:1.0.0-6.el7_7.1

libnetfilter_queue.x86_64 0:1.0.2-2.el7_2

socat.x86_64 0:1.7.3.2-2.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 <none> 18s v1.16.0

k8s-node2 NotReady <none> 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 0/1 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 0/1 Init:0/1 0 8s

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

kube-flannel-ds-amd64-85vf8 0/1 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

等大概十分钟左右

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

NAME READY STATUS RESTARTS AGE

coredns-58cc8c89f4-7s2n9 1/1 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 1/1 Running 0 2m42s

kube-flannel-ds-amd64-7snx6 1/1 Running 0 2m42s

kube-flannel-ds-amd64-85vf8 1/1 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 <none> 4m22s v1.16.0

k8s-node2 Ready <none> 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 <none> 443/TCP 6m34s

service/nginx NodePort 10.1.131.49 <none> 80:32232/TCP 7s

访问地址：http://NodeIP:Port

192.168.1.112:32232

快速部署一个kubernetes集群

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

NAME STATUS ROLES AGE VERSION

k8s-master Ready master 7m4s v1.16.0

k8s-node1 Ready <none> 5m41s v1.16.0

k8s-node2 Ready <none> 5m37s v1.16.0

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

NAME READY STATUS RESTARTS AGE

coredns-58cc8c89f4-7s2n9 1/1 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 1/1 Running 0 4m6s

kube-flannel-ds-amd64-7snx6 1/1 Running 0 4m6s

kube-flannel-ds-amd64-85vf8 1/1 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 <none> 6m35s v1.16.0

k8s-node2 Ready <none> 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 <none> 443/TCP 7m57s

service/nginx NodePort 10.1.131.49 <none> 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: <none>

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

必须要用火狐浏览器：

访问地址：http://NodeIP:30001

快速部署一个kubernetes集群

dashboard部署成功

k8s-node1和k8s-node2的部署步骤一样

[root@k8s-node2 ~]# getenforce

Disabled

[root@k8s-node2 ~]# cat > /etc/sysctl.d/k8s.conf << EOF

net.bridge.bridge-nf-call-ip6tables = 1

net.bridge.bridge-nf-call-iptables = 1

EOF

[root@k8s-node2 ~]# cat /etc/sysctl.d/k8s.conf

net.bridge.bridge-nf-call-ip6tables = 1

net.bridge.bridge-nf-call-iptables = 1

[root@k8s-node2 ~]# sysctl --system

* Applying /usr/lib/sysctl.d/00-system.conf ...

* Applying /usr/lib/sysctl.d/10-default-yama-scope.conf ...

kernel.yama.ptrace_scope = 0

* Applying /usr/lib/sysctl.d/50-default.conf ...

kernel.sysrq = 16

kernel.core_uses_pid = 1

net.ipv4.conf.default.rp_filter = 1

net.ipv4.conf.all.rp_filter = 1

net.ipv4.conf.default.accept_source_route = 0

net.ipv4.conf.all.accept_source_route = 0

net.ipv4.conf.default.promote_secondaries = 1

net.ipv4.conf.all.promote_secondaries = 1

fs.protected_hardlinks = 1

fs.protected_symlinks = 1

* Applying /etc/sysctl.d/99-sysctl.conf ...

* Applying /etc/sysctl.d/k8s.conf ...

* Applying /etc/sysctl.conf ...

[root@k8s-node2 ~]# wget https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo -O /etc/yum.repos.d/docker-ce.repo

--2020-02-12 10:07:18-- https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

Resolving mirrors.aliyun.com (mirrors.aliyun.com)... 119.96.207.104, 119.96.207.102, 119.96.207.101, ...

Connecting to mirrors.aliyun.com (mirrors.aliyun.com)|119.96.207.104|:443... connected.

HTTP request sent, awaiting response... 200 OK

Length: 2640 (2.6K) [application/octet-stream]

Saving to: ‘/etc/yum.repos.d/docker-ce.repo’

100%[======================================>] 2,640 --.-K/s in 0s

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

[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 3:19.03.5-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.4-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.3-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.2-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.1-3.el7 docker-ce-stable

docker-ce.x86_64 3:19.03.0-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.9-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.8-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.7-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.6-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.5-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.4-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.3-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.2-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.1-3.el7 docker-ce-stable

docker-ce.x86_64 3:18.09.0-3.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