Install Ispconfig Ubuntu

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The server installer for 20.04 supports a new mode of operation: automated installation, autoinstallation for short. You might also know this feature as unattended or handsoff or preseeded installation.

Autoinstallation lets you answer all those configuration questions ahead of time with an autoinstall config and lets the installation process run without any interaction.

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preseeds are the way to automate an installer based on debian-installer (aka d-i).

autoinstalls for the new server installer differ from preseeds in the following main ways:

  • the format is completely different (cloud-init config, usually yaml, vs debconf-set-selections format)
  • when the answer to a question is not present in a preseed, d-i stops and asks the user for input. autoinstalls are not like this: by default, if there is any autoinstall config at all, the installer takes the default for any unanswered question (and fails if there is no default).
    • You can designate particular sections in the config as “interactive”, which means the installer will still stop and ask about those.

The autoinstall config is provided via cloud-init configuration, which is almost endlessly flexible. In most scenarios the easiest way will be to provide user-data via the nocloud data source.

The autoinstall config should be provided under the autoinstall key in the config. For example:

Even if a fully noninteractive autoinstall config is found, the server installer will ask for confirmation before writing to the disks unless autoinstall is present on the kernel command line. This is to make it harder to accidentally create a USB stick that will reformat a machine it is plugged into at boot. Many autoinstalls will be done via netboot, where the kernel command line is controlled by the netboot config – just remember to put autoinstall in there!

Ispconfig

So you just want to try it out? Well we have the page for you.

When any system is installed using the server installer, an autoinstall file for repeating the install is created at /var/log/installer/autoinstall-user-data.

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The snap described here does not yet exist

Alternatively there is a snap, autoinstall-editor, that can be used to either edit or create from scratch an autoinstall config (it is actually mostly the same code as that that runs the installation in interactive mode).

The autoinstall config has full documentation.

Technically speaking the config is not defined as a textual format, but cloud-init config is usually provided as YAML so that is the syntax the documentation uses.

Install Ispconfig Ubuntu

A minimal config is:

Here is an example file that shows off most features:

Many keys and values correspond straightforwardly to questions the installer asks (e.g. keyboard selection). See the reference for details of those that do not.

Progress through the installer is reported via the reporting system, including errors. In addition, when a fatal error occurs, the error-commands are executed and the traceback printed to the console. The server then just waits.

We might want to extend the ‘match specs’ for disks to cover other ways of selecting disks.

Ifconfig Ubuntu

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