Notes
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Kubernetes

外部 service

指定 Endpoint

kind: Endpoints
apiVersion: v1
metadata:
name: minio
subsets:
- addresses:
- ip: 172.16.1.18
ports:
- port: 9000
---
kind: Service
apiVersion: v1
metadata:
name: minio
spec:
ports:
- port: 80
targetPort: 9000

ExternalName

kind: Service
apiVersion: v1
metadata:
name: m
spec:
type: ExternalName
externalName: bf-dev-databag.oss-cn-hangzhou-internal.aliyuncs.com

安装

# 1. 设置免密登录
ip="10.4.34.47" && \
ssh [email protected]${ip} 'mkdir -p ~/.ssh' && \
cat ~/.ssh/id_rsa.pub | ssh [email protected]${ip} 'cat >> ~/.ssh/authorized_keys' && \
ssh [email protected]${ip} 'chmod 600 .ssh/authorized_keys'
# 2. 设置网络、hostname
chkconfig NetworkManager on
systemctl start NetworkManager.service
nmtui
# 3. 安装常用的工具
yum update -y && \
yum install -y tree git wget nfs-utils zsh net-tools ntp vim bind-utils traceroute
# 4. 安装 zsh 和插件
sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"
git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting
git clone https://github.com/zsh-users/zsh-autosuggestions $ZSH_CUSTOM/plugins/zsh-autosuggestions
vi ~/.zshrc
change theme to af-magic
zsh-syntax-highlighting
zsh-autosuggestions
alias vi="vim"
source ~/.zshrc
# 5. 关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
# 6. 关闭内存交换
swapoff -a
vi /etc/fstab
free -h
# 7. 安装 docker
yum remove docker \
docker-client \
docker-client-latest \
docker-common \
docker-latest \
docker-latest-logrotate \
docker-logrotate \
docker-selinux \
docker-engine-selinux \
docker-engine
rm -rf /var/lib/docker
yum install -y yum-utils \
device-mapper-persistent-data \
lvm2
cat <<EOF > /etc/yum.repos.d/docker-ce.repo
[docker-ce-stable]
name=Docker CE Stable - \$basearch
baseurl=https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/centos/7/\$basearch/stable
enabled=1
gpgcheck=1
gpgkey=https://mirrors.tuna.tsinghua.edu.cn/docker-ce/linux/centos/gpg
EOF
yum makecache fast
yum list docker-ce --showduplicates | sort -r
yum install -y --setopt=obsoletes=0 docker-ce-17.03.2.ce docker-ce-selinux-17.03.2.ce-1.el7.centos
iptables -P FORWARD ACCEPT
systemctl enable docker && systemctl start docker
yum-config-manager --disable docker-ce-stable
# 8. 安装 Kuberntes
cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://mirrors.aliyun.com/kubernetes/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=0
repo_gpgcheck=0
gpgkey=http://mirrors.aliyun.com/kubernetes/yum/doc/yum-key.gpg
http://mirrors.aliyun.com/kubernetes/yum/doc/rpm-package-key.gpg
EOF
yum makecache fast
yum list kubelet --showduplicates | sort -r
yum list kubeadm --showduplicates | sort -r
yum list kubectl --showduplicates | sort -r
setenforce 0
vi /etc/selinux/config
SELINUX=disabled
yum install -y kubernetes-cni-0.6.0 kubelet-1.11.0 kubectl-1.11.0 kubeadm-1.11.0
systemctl enable kubelet && systemctl start kubelet
yum-config-manager --disable kubernetes
cat <<EOF > /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF
sysctl net.bridge.bridge-nf-call-iptables=1
sysctl --system
# docker info | grep cgroup
# cat /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
# sed -i "s/cgroup-driver=systemd/cgroup-driver=cgroupfs/g" /etc/systemd/system/kubelet.service.d/10-kubeadm.conf
DOCKER_CGROUPS=$(docker info | grep 'Cgroup' | cut -d' ' -f3)
echo $DOCKER_CGROUPS
cat >/etc/sysconfig/kubelet<<EOF
KUBELET_EXTRA_ARGS="--cgroup-driver=$DOCKER_CGROUPS --pod-infra-container-image=registry.cn-hangzhou.aliyuncs.com/bimface_common/pause-amd64:3.1"
EOF
systemctl daemon-reload && systemctl restart kubelet
# master初始化
kubeadm init --config kubeadm/kubeadm.yaml
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
# 安装网络插件
kubectl apply -f flannel/kube-flannel.yml
# 重置 master
kubeadm reset -f
ifconfig cni0 down
ip link delete cni0
ifconfig flannel.1 down
ip link delete flannel.1
rm -rf /var/lib/cni/
rm -rf $HOME/.kube
rm -rf /etc/kubernetes
# 查看 kubelet 日志
journalctl -l -u kubelet
# 确认 kubernetes 安装成功
curl http://kubernetes-dashboard.kube-system/api/v1/login/status
# 重新生产 join token
kubeadm token list
kubeadm token create
openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed 's/^.* //'
# or
kubeadm token create --print-join-command
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On this page
外部 service
指定 Endpoint
ExternalName
安装