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SinaOwolabi's questions

Martin Hope
Unpossible
Asked: 2023-05-04 02:12:43 +0800 CST
  • 5

我正在尝试使用 cloud-init 来设置 kvm 来宾（目前是 Debian 11 和 CentOS Stream 8），我正在寻求有关更正元数据和用户数据文件的帮助。其他一切似乎都有效，但网络接口设置未设置，但我确实看到 cloud-init 日志显示它们已设置。请看下面：

对于 debian：

    cat << EOF > /var/lib/libvirt/images/$meta_data_file
instance-id: $vm_name
local-hostname: $vm_name
hostname: $vm_name
fqdn: $vm_name
manage_etc_hosts: true
EOF

cat << EOF > /var/lib/libvirt/images/$cloud_config_file
#cloud-config

# Hostname management
preserve_hostname: false
hostname: $vm_name
fqdn: $vm_name
network:
  version: 2
  ethernets:
    eth0:
      match:
        name: e*
      dhcp4: false
      addresses: 
        - 10.10.0.25/24
      gateway4: 10.10.0.254
      nameservers:
        addresses:
          - 10.50.0.23
          - 10.50.0.17
          - 10.50.0.18
      search: [testing,production,admin,internal]
      routes:
        - to: 10.50.0.0/24
          via: 10.10.0.249
users:
  - default
  - name: admin
    sudo: ALL=(ALL) NOPASSWD:ALL
    groups: wheel, sudo, admin
    home: /home/admin
    shell: /bin/bash
    hashed_passwd: $adminpasswd
    lock_passwd: false
    ssh_pwauth: True
    chpasswd: { expire: False }
    ssh-authorized-keys:
      - ssh-rsa ...
      - ssh-rsa ...
# only cert auth via ssh (console access can still login)
ssh_pwauth: True
disable_root: false
chpasswd:
  list: |
     root:$rtpwd
  expire: False
runcmd:
  # disable dhcp for eth0
  - [ sh, -c, sed -e '/iface eth0 inet dhcp/s/^/#/g' -i /etc/network/interfaces ]
bootcmd:
  - cloud-init-per always fix-debian-autonet rm /etc/udev/rules.d/75-cloud-ifupdown.rules
    - cloud-init-per always fix-debian-netconfig rm /run/network/interfaces.d/*
  - cloud-init-per once ifdown ifdown ens3
  - cloud-init-per once bugfix rm /run/network/interfaces.d/ens3
  - cloud-init-per once ifup ifup ens3

# Configure where output will go
output:
  all: ">> /var/log/cloud-init.log"
# configure interaction with ssh server
ssh_svcname: ssh
ssh_deletekeys: True
ssh_genkeytypes: ['rsa', 'ecdsa']
package_update: true
package_upgrade: true
packages:
  - bind9-utils
  - vim
  - freeipa-client
  - cloud-utils-growpart
power_state:
  delay: "+2" #minutes
  mode: reboot
  message: Run completed
  timeout: 120 #seconds
  condition: True
EOF

对于 Centos Stream 8：

cat << EOF > /var/lib/libvirt/images/$cloud_config_file
#cloud-config

# Hostname management
preserve_hostname: false
hostname: $vm_name
fqdn: $vm_name
network:
  version: 2
  ethernets:
    eth0:
      match:
        name: e*
      dhcp4: false
      addresses: 
        - 10.50.0.26/24
      gateway4: 10.50.0.254
      nameservers:
        addresses:
          - 10.15.0.23
          - 10.15.0.17
          - 10.15.0.18
      search: [testing,production,admin,internal]
      routes:
        - to: 10.15.0.0/24
          via: 10.50.0.249

users:
  - default
  - name: admin
    sudo: ALL=(ALL) NOPASSWD:ALL
    groups: wheel, sudo, admin
    home: /home/admin
    shell: /bin/bash
    hashed_passwd: $adminpasswd
    lock_passwd: false
    ssh_pwauth: True
    chpasswd: { expire: False }
    ssh-authorized-keys:
      - ssh-rsa ...
      - ssh-rsa ...
ssh_pwauth: True
disable_root: false
chpasswd:
  list: |
     root:$rtpwd
  expire: False

# Configure where output will go
output:
  all: ">> /var/log/cloud-init.log"
# configure interaction with ssh server
ssh_svcname: ssh
ssh_deletekeys: True
ssh_genkeytypes: ['rsa', 'ecdsa']
package_update: true
package_upgrade: true
packages:
  - bind9-utils
  - vim
  - freeipa-client
  - cloud-utils-growpart
power_state:
  delay: "+2" #minutes
  mode: reboot
  message: Run completed
  timeout: 120 #seconds
  condition: True
EOF

请问我做错了什么？

centos
Martin Hope
SinaOwolabi
Asked: 2019-06-01 22:24:56 +0800 CST
  • 0

我有一个 CentOS 7 虚拟机，它有一个需要到达一组目标 IP 地址的接口。

有两个网关路由设备可以通过不同的方式访问这组 IP（一个通过 VPN，另一个通过一些直接路由）。

CentOS 与这些路由设备位于同一子网中。

是否可以将 CentOS 配置为在这些 IP 的网关路由设备之间切换？

routing
Martin Hope
SinaOwolabi
Asked: 2018-05-22 07:46:38 +0800 CST
  • 1

Ngnix新手在这里。请我需要一些帮助来弄清楚如何正确地使 nginx 修改和重定向（代理？）传入请求。重定向似乎工作正常，但 URL 没有在目的地重写。

我的配置是：

        server {

       listen 91 default_server ssl;

       ssl_prefer_server_ciphers on;
       ssl_certificate /etc/nginx/ssl/domain.crt;
       ssl_certificate_key /etc/nginx/ssl/domain.key;

        location /dest {

        rewrite ^a_service_prod&id_number=((1234701|1234708|1234802|1234808|1234812|1234902)\d+)&(.*?)$ /dest?service=a_service_prod.sub_service&operation=sub_service&id_number=$1&$2 break;
            proxy_pass http://192.168.1.1:1440;
            proxy_redirect off;
            proxy_set_header Host $host;
        }
    }

我试图获取诸如/dest?service=a_service_prod&id_number=12347016734696&slime=somethig 被重写的请求并将请求发送到另一台服务器作为http://192.168.1.1:1440/dest?service=a_service_prod.sub_service&operation=sub_service&id_number=12347016734696&slime=somethig

但是在目的地，收到的是http://192.168.1.1:1440/dest?service=a_service_prod&id_number=12347016734696&slime=somethig

请问我做错了什么，我该如何解决？

nginx
Martin Hope
SinaOwolabi
Asked: 2018-03-25 14:04:22 +0800 CST
  • 5

我正在寻求建议。我有一些 CentOS 7 虚拟机，它们将 ISCSI 磁盘安装为 LVM 分区用于应用程序日志存储。这些虚拟机已经负载很高（CPU 和 RAM），我有点担心引入诸如 logstash 之类的应用程序来读取这些日志。如何轻松地与运行 logstash 的新 VM 远程共享日志分区？

linux