78 lines
2.6 KiB
ReStructuredText
78 lines
2.6 KiB
ReStructuredText
Quickstart
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==========
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This tutorial is aimed at people learning cdist and shows
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typical approaches as well as gives an easy start into
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the world of configuration management.
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For those who just want to configure a system with the
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cdist configuration management and do not need (or want)
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to understand everything.
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This tutorial assumes you are configuring **localhost**, because
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it is always available. Just replace **localhost** with your target
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host for real life usage.
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Cdist uses **ssh** for communication and transportation
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and usually logs into the **target host** as the
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**root** user. So you need to configure the **ssh server**
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of the target host to allow root logins: Edit
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the file **/etc/ssh/sshd_config** and add one of the following
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lines::
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# Allow login only via public key
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PermitRootLogin without-password
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# Allow login via password and public key
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PermitRootLogin yes
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As cdist uses ssh intensively, it is recommended to setup authentication
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with public keys::
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# Generate pubkey pair as a normal user
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ssh-keygen
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# Copy pubkey over to target host
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ssh-copy-id root@localhost
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Have a look at ssh-agent(1) and ssh-add(1) on how to cache the password for
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your public key. Usually it looks like this::
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# Start agent and export variables
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eval `ssh-agent`
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# Add keys (requires password for every identity file)
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ssh-add
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At this point you should be able to **ssh root@localhost** without
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re-entering the password. If something failed until here, ensure that
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all steps went successfully and you have read and understood the
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documentation.
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As soon as you are able to login without password to localhost,
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we can use cdist to configure it. You can copy and paste the following
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code into your shell to get started and configure localhost::
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# Get cdist
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git clone git@code.ungleich.ch:ungleich-public/cdist.git
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# Create manifest (maps configuration to host(s)
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cd cdist
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echo '__file /etc/cdist-configured' > cdist/conf/manifest/init
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# Configure localhost in verbose mode
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./bin/cdist config -v localhost
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# Find out that cdist created /etc/cdist-configured
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ls -l /etc/cdist-configured
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Note: cdist/conf is configuration directory shipped with cdist distribution.
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If exists, ~/.cdist, is also automatically used as cdist configuration
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directory. So in the above example you could create ~/.cdist directory,
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then ~/.cdist/manifest sub-directory and create init manifest
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~/.cdist/manifest/init.
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That's it, you've successfully used cdist to configure your first host!
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Continue reading the next sections, to understand what you did and how
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to create a more sophisticated configuration.
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