opensuse
The openSUSE project is a worldwide effort that promotes the use of Linux everywhere.
init
旧电脑启动后需要 systemctl restart wicked 才可以 ping 通
opensuse 启动后执行脚本
# micro os 测试可行
mkdir -p /etc/init.d
touch /etc/init.d/after.local
vim /etc/init.d/after.local
chmod +x /etc/init.d/after.local
reboot
after.local
#!/usr/bin/sh
/usr/bin/systemctl restart wicked
/usr/bin/echo "测试是否执行脚本" > /root/test.log
原子更新
transactional-update shell
zypper ref #刷新
zypper dup #更新
exit
transactional-update cleanup #清理未使用的系统快照
zypper
repo
Repository Management:
repos, lr List all defined repositories.
addrepo, ar Add a new repository.
removerepo, rr Remove specified repository.
renamerepo, nr Rename specified repository.
modifyrepo, mr Modify specified repository.
refresh, ref Refresh all repositories.
clean, cc Clean local caches.
# 例子
zypper repos -d # 查看源详细信息
zypper mr -da # 禁用全部源
# 添加国内源
zypper addrepo -f https://mirrors.bfsu.edu.cn/opensuse/tumbleweed/repo/non-oss bfsu-non-oss
zypper addrepo -f https://mirrors.bfsu.edu.cn/opensuse/tumbleweed/repo/oss/ bfsu-oss
zypper ar -f https://mirrors.bfsu.edu.cn/opensuse/tumbleweed/repo/non-oss bfsu-non-oss
zypper ar -f https://mirrors.bfsu.edu.cn/opensuse/tumbleweed/repo/oss/ bfsu-oss
zypper refresh # 刷新
zypper ref # 刷新
zypper dup # 更新
package
zypper in docker # 安装docker
master:~/parking # cat /etc/docker/daemon.json
{
"registry-mirrors":["https://rjm3pmfv.mirror.aliyuncs.com"]
}
zypper in docker-compose # 安装docker-compose
zypper in htop # htop
zypper in tmux # tmux
zypper in lrzsz # lrzsz
zypper in zsh # zsh
zypper in git # git
# 安装 ohmyzsh
sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
zypper in podman # 安装 podman
zypper in nfs-kernel-server # 安装 NFS
opensuse java 管理工具 alternatives --config java
example
caddy@localhost:~> java -version
java version "1.8.0_321"
Java(TM) SE Runtime Environment (build 1.8.0_321-b07)
Java HotSpot(TM) 64-Bit Server VM (build 25.321-b07, mixed mode)
caddy@localhost:~> sudo alternatives --config java
[sudo] root 的密码：
There are 3 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
0 /usr/java/jdk-17.0.2/bin/java 170002000 auto mode
1 /usr/java/jdk-17.0.2/bin/java 170002000 manual mode
* 2 /usr/java/jdk1.8.0_321-amd64/bin/java 180321 manual mode
3 /usr/lib64/jvm/jre-11-openjdk/bin/java 2105 manual mode
Press <enter> to keep the current choice[*], or type selection number: 1
update-alternatives: using /usr/java/jdk-17.0.2/bin/java to provide /usr/bin/java (java) in manual mode
caddy@localhost:~> java -version
java version "17.0.2" 2022-01-18 LTS
Java(TM) SE Runtime Environment (build 17.0.2+8-LTS-86)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.2+8-LTS-86, mixed mode, sharing)
Micro OS
kubic
- https://en.opensuse.org/Kubic:Installation
- 国内外国语大学开源软件镜像站
- 国内外国语大学开源软件镜像仓库
注意：
- openSUSE-Kubic 默认有定时重启系统和滚动更新系统的服务
systemctl status transactional-update.timer自动滚动更新systemctl status rebootmgr.service重启系统rebootmgrctl get-window查看维护开始时间和持续时间 默认 window-start=03:30 window-duration=1h30m
- 安装选择
kubeadm Node - 设置时区
Asia/Shanghai - 设置
hostname&ip&dns&gatewayvirtualbox nat 10.0.0.1
network
ip link
# 激活网卡
ip link set wlp2s0 up
# 关闭网卡
ip link set wlp2s0 down
# 查看网卡状态
ifstatus wlp2s0
# 连接网络
ifup wlp2s0
# 断开
ifdown wlp2s0
网络配置
BOOTPROTO='dhcp'
STARTMODE='auto'
WIRELESS_ESSID='fiy'
WIRELESS_AUTH_MODE='PSK'
WIRELESS_MODE='managed'
WIRELESS_WPA_PSK='fiy123456'
WIRELESS_AP_SCANMODE='1'
WIRELESS_NWID=''
IPADDR='192.168.1.10/24'
BOOTPROTO='static'
STARTMODE='auto'
WIRELESS_ESSID='fiy'
WIRELESS_AUTH_MODE='PSK'
WIRELESS_MODE='managed'
WIRELESS_WPA_PSK='fiy123456'
WIRELESS_AP_SCANMODE='1'
WIRELESS_NWID=''
ssh
echo "PermitRootLogin yes" >> /etc/ssh/sshd_config
# 重启 ssh
systemctl restart sshd.service
service sshd restart
master
kubeadm init --image-repository registry.aliyuncs.com/google_containers
# 根据提示 复制配置文件
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
# Setup weave
kubectl apply -f /usr/share/k8s-yaml/weave/weave.yaml
#You may need to reboot the master after applying this change if you see runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:Network plugin returns error: Missing CNI default network when runnnig kubectl describe nodes.
# 输出join信息
kubeadm token create --print-join-command
slave
mkdir .kube
scp root@10.0.0.6:/etc/kubernetes/admin.conf $HOME/.kube/config
# 在 master 输出join信息
kubeadm token create --print-join-command
kubeadm join 10.0.0.6:6443 --token 7eagfo.s93tp0nxirady7w7 \
--discovery-token-ca-cert-hash sha256:82b4363e47a2e37d0a40298c37d6f9129fdae982cc403b94585bfabdd4351afb
# 设置nodes roles
master:~ # kubectl label no slave kubernetes.io/role=slave
node/slave labeled
check
master:~ # kubectl get nodes
NAME STATUS ROLES AGE VERSION
master NotReady control-plane,master 2m v1.22.2
master:~ # kubectl get pod -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-7f6cbbb7b8-bwd6h 0/1 Pending 0 2m29s
coredns-7f6cbbb7b8-tx95n 0/1 Pending 0 2m29s
etcd-master 1/1 Running 0 2m36s
kube-apiserver-master 1/1 Running 0 2m37s
kube-controller-manager-master 1/1 Running 0 2m28s
kube-proxy-7wsmt 1/1 Running 0 2m29s
kube-scheduler-master 1/1 Running 0 2m34s
weave-net-5ksh4 0/2 Init:0/1 0 48s
master:~ # kubectl get pods -n kube-system -l name=weave-net -o wide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
weave-net-5ksh4 2/2 Running 1 (14m ago) 78m 10.0.0.6 master <none> <none>
master:~ # reboot
master:~ # kubectl get pod -n kube-system
NAME READY STATUS RESTARTS AGE
coredns-7f6cbbb7b8-bwd6h 1/1 Running 0 80m
coredns-7f6cbbb7b8-tx95n 1/1 Running 0 80m
etcd-master 1/1 Running 1 80m
kube-apiserver-master 1/1 Running 1 80m
kube-controller-manager-master 1/1 Running 1 80m
kube-proxy-7wsmt 1/1 Running 1 80m
kube-scheduler-master 1/1 Running 1 80m
weave-net-5ksh4 2/2 Running 1 (15m ago) 78m
k8s一些指令
kubeadm reset
kubectl get nodes
kubectl get namespaces
kubectl get pods -n kube-system
kubectl get pod -n kube-system
kubectl get pod --all-namespaces
kubectl get pods
kubectl get pods -n kube-system -l name=weave-net -o yaml | grep IP
kubectl drain slave --delete-local-data --ignore-daemonsets
kubectl delete node slave
kubectl cluster-info
kubectl describe deployment nginx-deployment
kubectl describe pod nginx-deployment-66b6c48dd5-p9kbk
nfs
挂载网络上的文件系统
Install NFS kernel server
zypper in nfs-kernel-serversystemctl status nfs-server.servicesystemctl start nfs-server.servicesystemctl enable nfs-server.service
server configure /etc/exports
# This shares the directory read-only to ALL hosts
/root/export/this/directory (ro)
# This shares the directory read-and-write to all hosts in the 192.168.1.0 network, which subnet mask 255.255.255.0
/root/export/this/directory 192.168.1.0/24(rw,async)
# 当客户端使用root用户时无法需要在服务端添加此配置 no_root_squash;默认 root_squash
/root/export/this/directory 192.168.10.0/24(rw,no_root_squash,async)
client configure /etc/fstab
192.168.1.2:/root/export/this/directory /local/mountpoint nfs auto 0 0
rebootmg
# Disable Automatic Updates
systemctl --now disable transactional-update.timer
# Disable Rebootmgr
systemctl --now disable rebootmgr
## or
rebootmgrctl set-strategy off
/etc/rebootmgr.conf A default configuration file would be:
[rebootmgr]
window-start=03:30
window-duration=1h30m
strategy=best-effort
lock-group=default