Azure Linux Agent 的安装和使用

Azure Linux Agent 的作用

微软提供的Azure Linux Agent(waagent)，能够定制发布到Azure上的VM的provison行为，方便与Azure 服务器进行交流。具体提供的功能如下：

• Image Provisioning

  • Creation of a user account
  • Configuring SSH authentication types
  • Deployment of SSH public keys and key pairs
  • Setting the host name
  • Publishing the host name to the platform DNS
  • Reporting SSH host key fingerprint to the platform
  • Resource Disk Management
  • Formatting and mounting the resource disk
  • Configuring swap space

• Networking

  • Manages routes to improve compatibility with platform DHCP servers
  • Ensures the stability of the network interface name

• Kernel

  • Configures virtual NUMA (disable for kernel <2.6.37)
  • Consumes Hyper-V entropy for /dev/random
  • Configures SCSI timeouts for the root device (which could be remote)

• Diagnostics

  • Console redirection to the serial port

• SCVMM Deployments

  • Detects and bootstraps the VMM agent for Linux when running in a System Center Virtual Machine Manager 2012 R2 environment

• VM Extension

  • Inject component authored by Microsoft and Partners into Linux VM (IaaS) to enable software and configuration automation
  • VM Extension reference implementation on https://github.com/Azure/azure-linux-extensions

• Image Provisioning

  • Creation of a user account
  • Configuring SSH authentication types
  • Deployment of SSH public keys and key pairs
  • Setting the host name
  • Publishing the host name to the platform DNS
  • Reporting SSH host key fingerprint to the platform
  • Resource Disk Management
  • Formatting and mounting the resource disk
  • Configuring swap space

• Networking

  • Manages routes to improve compatibility with platform DHCP servers
  • Ensures the stability of the network interface name

• Kernel

  • Configures virtual NUMA (disable for kernel <2.6.37)
  • Consumes Hyper-V entropy for /dev/random
  • Configures SCSI timeouts for the root device (which could be remote)

• Diagnostics

  • Console redirection to the serial port

• SCVMM Deployments

  • Detects and bootstraps the VMM agent for Linux when running in a System Center Virtual Machine Manager 2012 R2 environment

• VM Extension

  • Inject component authored by Microsoft and Partners into Linux VM (IaaS) to enable software and configuration automation
  • VM Extension reference implementation on https://github.com/Azure/azure-linux-extensions

• Image Provisioning

  • Creation of a user account
  • Configuring SSH authentication types
  • Deployment of SSH public keys and key pairs
  • Setting the host name
  • Publishing the host name to the platform DNS
  • Reporting SSH host key fingerprint to the platform
  • Resource Disk Management
  • Formatting and mounting the resource disk
  • Configuring swap space

• Networking

  • Manages routes to improve compatibility with platform DHCP servers
  • Ensures the stability of the network interface name

• Kernel

  • Configures virtual NUMA (disable for kernel <2.6.37)
  • Consumes Hyper-V entropy for /dev/random
  • Configures SCSI timeouts for the root device (which could be remote)

• Diagnostics

  • Console redirection to the serial port

• SCVMM Deployments

  • Detects and bootstraps the VMM agent for Linux when running in a System Center Virtual Machine Manager 2012 R2 environment

• VM Extension

  • Inject component authored by Microsoft and Partners into Linux VM (IaaS) to enable software and configuration automation
  • VM Extension reference implementation on https://github.com/Azure/azure-linux-extensions

Azure Linux Agent的定制

waagent的行为通过/ect/waagent.conf来控制。选择‘y’ 或者‘n’开启或者关闭agent的功能：

Provisioning.RegenerateSshHostKeyPair=y

Provisioning.SshHostKeyPairType=rsa

能够开启VM的deployment的ssh key pair的认证方式，提供用户更高的安全性

Provisioning.MonitorHostName=y

能够在保证VM的hostname和VM的name保持一致

Azure Linux Agent的安装

从https://github.com/Azure/WALinuxAgent下载安装包，运行 python setup.py install