install

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─❯ helm install -f ./mysql-operator/values.yaml -name mysql-operator --namespace mysql-operator  --create-namespace  ./mysql-operator



❯ helm install mycluster ./mysql-innodbcluster \
        --namespace mysql-operator \
        --set tls.useSelfSigned=true \
        --set credentials.root.user='root' \
        --set credentials.root.password='cs@123456' \
        --set credentials.root.host='%' \
        --set serverInstances=3 \
        --set routerInstances=1



❯ helm uninstall  -name mycluster --namespace mysql-operator
release "mycluster" uninstalled
❯ helm uninstall  -name mysql-operator --namespace mysql-operator
release "mysql-operator" uninstalled

❯ kubectl logs mysql-operator-9d99d7fb4-slm2p -n mysql-operator
2023-08-31 10:45:24: Info: mysqlsh Ver 8.1.0 for Linux on x86_64 - for MySQL 8.1.0 (MySQL Community Server (GPL)) - build 11806291 - commit_id aa072a78647c21a540e40b8bdd04420e6efbe677
2023-08-31 10:45:24: Info: Using credential store helper: /usr/bin/mysql-secret-store-login-path
2023-08-31 10:45:24: Info: Loading startup files…
2023-08-31 10:45:24: Info: Loading plugins…
[2023-08-31 10:45:26,726] root [WARNING ] Failed to detect cluster domain. Reason: [Errno 2] Host name lookup failure
….
[2023-08-31 10:45:54,977] root [WARNING ] Failed to detect cluster domain. Reason: [Errno 2] Host name lookup failure
[2023-08-31 10:45:56,979] root [ERROR ] Failed to automatically identify the cluster domain. If this
persists try setting MYSQL_OPERATOR_K8S_CLUSTER_DOMAIN via environment.

安装转换

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❯ sudo apt-get install gogoprotobuf

❯ protoc –version
libprotoc 3.12.4

https://www.codenong.com/57700860/

go get -u github.com/golang/protobuf/{proto,protoc-gen-go,protoc-gen-go-grpc}

基础架构

producer 生产者，消息产生

broker 实例对应服务器的节点，每个cluster集群内的broker都有不重复的编号

topic 消息主题，分类

partition topic的分区，用作负载，提高吞吐量，对应的是一个个文件

replication 分区副本，作用是备份，主leader故障，follower进行选主，副本数不大于broker数，主备不在同一个机器，同一机器对同一分区也只放一个副本

Install Crossplane

https://docs.crossplane.io/latest/software/install/

Prerequisites

• An actively supported Kubernetes version
• Helm version v3.2.0 or later

配置

四行的含义：

resolv-file：从文件读取 DNSMasq 上游的 DNS 服务器配置。
strict-order：resolv-file 文件中如果指定了多个 DNS 服务器，严格安装 DNS 服务器的先后顺序查询域名。
listen-address：监听地址，配置为本机 IP 即可。
addn-hosts：从文件读取本地 DNS 域名和 IP 的对应关系，格式为 。其实可以把 IP 和域名的对应关系写在 /etc/hosts 文件中，DNSMasq 默认从那里读取，但如果要支持一个域名对应多个 IP，就必须使用 addn-hosts 选项了。

resolv-file=/etc/resolv.conf
strict-order
listen-address=192.168.122.1
addn-hosts=/opt/tools/dns/hosts

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systemctl start dnsmasq.service 启动

systemctl enable dnsmasq.service # 开机启动

netstat -lnp|grep dnsmasq 

k8s dns

coredns 异常检查以下配置

/etc/kubernetes/manifests/kube-controller-manager.yaml

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cat /etc/kubernetes/manifests/kube-controller-manager.yaml | grep cluster-
    - --cluster-cidr=121.21.0.0/16   #意味着Pod IP地址将从121.21.0.0到121.21.255.255范围内分配
    - --cluster-name=cs
    - --cluster-signing-cert-file=/etc/kubernetes/pki/ca.crt
    - --cluster-signing-key-file=/etc/kubernetes/pki/ca.key
    - --service-cluster-ip-range=10.96.0.0/12 #服务的IP地址将从10.96.0.0到10.97.255.255范围内分配

cluster-cidr

service-cluster-ip-range

/var/lib/kubelet/config.yaml

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$  cat /var/lib/kubelet/config.yaml | grep -A 1 cluster
clusterDNS:
- 10.96.1.10
  clusterDomain: cluster.local
  cpuManagerReconcilePeriod: 0s

clusterDNS

进入pod中 查看/etc/reslove.conf 中nameserver和kube-dns ClusterIP 是否一致

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kubectl edit cm kube-proxy -n kube-system

修改每个Node上kubelet的启动参数，在其中加上以下两个参数：

–cluster-dns=169.169.0.100：为DNS服务的ClusterIP地址。
–cluster-domain=cluster.local：为在DNS服务中设置的域名。
然后重启kubelet服务

nslookup

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❯ kubectl debug -it vault-0  -n vault  --image=k8s.org/cs/netshoot   -- sh

Defaulting debug container name to debugger-8z7lk.
If you don’t see a command prompt, try pressing enter.
root $ nslookup vault-internal
Server: 10.96.1.10
Address: 10.96.1.10#53

Name: vault-internal.vault.svc.cluster.local
Address: 121.21.64.141
Name: vault-internal.vault.svc.cluster.local
Address: 121.21.80.152
Name: vault-internal.vault.svc.cluster.local
Address: 121.21.48.135

NetworkManager

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❯ cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 192.168.5.1
nameserver 8.8.8.8
nameserver 114.114.114.114

/etc/network/interfaces

故障

泛域名

配置日志

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log-queries
log-facility=/opt/tools/dns/dnsmasq.log
addn-hosts=/opt/tools/dns/hostname
address=/local.org/192.168.122.1

Aug 29 18:16:12 dnsmasq[28763]: started, version 2.89 cachesize 150
Aug 29 18:16:12 dnsmasq[28763]: compile time options: IPv6 GNU-getopt DBus no-UBus i18n IDN2 DHCP DHCPv6 no-Lua TFTP conntrack ipset nftset auth cryptohash DNSSEC loop-detect inotify dumpfile
Aug 29 18:16:12 dnsmasq[28763]: reading /opt/tools/dns/resolv.dnsmasq.conf
Aug 29 18:16:12 dnsmasq[28763]: ignoring nameserver 192.168.122.1 - local interface
Aug 29 18:16:12 dnsmasq[28763]: using nameserver 202.96.128.86#53
Aug 29 18:16:12 dnsmasq[28763]: using nameserver 202.96.134.33#53
Aug 29 18:16:12 dnsmasq[28763]: read /etc/hosts - 11 names
Aug 29 18:16:12 dnsmasq[28763]: read /opt/tools/dns/hostname - 12 names

没有走dnsmasq

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❯ nslookup es.local.org    
Server:		202.96.128.86
Address:	202.96.128.86#53

** server can't find es.local.org: NXDOMAIN

❯ nslookup es.local.org 127.0.0.1
Server:		127.0.0.1
Address:	127.0.0.1#53

Name:	es.local.org
Address: 192.168.122.1

Aug 29 18:16:12 dnsmasq[28763]: read /opt/tools/dns/hostname - 12 names
Aug 29 18:16:21 dnsmasq[28763]: query[A] es.local.org from 127.0.0.1
Aug 29 18:16:21 dnsmasq[28763]: config es.local.org is 192.168.122.1
Aug 29 18:16:21 dnsmasq[28763]: query[AAAA] es.local.org from 127.0.0.1
Aug 29 18:16:21 dnsmasq[28763]: forwarded es.local.org to 202.96.128.86
Aug 29 18:16:21 dnsmasq[28763]: reply es.local.org is NODATA-IPv6

解决方式

NetworkManager 管理网络

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❯ sudo mousepad /etc/NetworkManager/NetworkManager.conf

[main]
dns=dnsmasq #添加

Dependencies

Make sure you have the following dependencies installed before setting up your developer environment:

• Git
• Go (see go.mod for minimum required version)
• Node.js (Long Term Support)
• Yarn

https://github.com/grafana/grafana/blob/dfc7a98d87c93860545033c9a37d81352c2caf70/contribute/developer-guide.md

zabbix

https://www.zabbix.com/download_sources

编译

Documentation: Zabbix 6.4 Installation from sources

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❯ sudo addgroup --system --quiet zabbix

❯ sudo adduser --quiet --system --disabled-login --ingroup zabbix --home /var/lib/zabbix --no-create-home zabbix


./configure  --prefix=/opt/zabbix  --enable-server --enable-agent --with-mysql --enable-ipv6 --with-net-snmp --with-libcurl --with-libxml2 --with-openipmi

Running make install will by default install the daemon binaries (zabbix_server, zabbix_agentd, zabbix_proxy) in /usr/local/sbin and the client binaries (zabbix_get, zabbix_sender) in /usr/local/bin.

缺依赖

https://packages.debian.org/search?searchon=contents&keywords=libssl.so

mycli

Quick Start

http://mycli.net/docs

You might need sudo on linux.

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$ pip install -U mycli

or

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$ brew update && brew install mycli  # Only on macOS

or

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$ sudo apt-get install mycli # Only on debian or ubuntu

##安装

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sudo apt-get install lm-sensors hddtemp psensor

lm_sensors 配置

vim

依赖 vim-runtime

gui 依赖 libruby2.1 libyaml-0-2 vim-gui-common

将会安装下列额外的软件包：

libruby2.1 libyaml-0-2 vim-gui-common

建议安装的软件包：

cscope vim-doc

下列【新】软件包将被安装：

libruby2.1 libyaml-0-2 vim-athena vim-gui-common