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============================
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Deploying the infrastructure
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============================
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Introduction
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============
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The deployment infrastructure is composed of:
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- one sysdb server;
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- one puppet server;
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- one repository server.
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We currently have two infrastructures in place, one for testing and the
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other for production, with the following hostnames:
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+--------------------+----------------+-----------------+
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| Role | testing host | production host |
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+====================+================+=================+
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| boot server | - | boot.psi.ch |
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| sysdb server | - | sysdb.psi.ch |
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+--------------------+----------------+-----------------+
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| puppet server | puppet00-test | puppet.psi.ch |
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+--------------------+----------------+-----------------+
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| repository server | - | repos.psi.ch |
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+--------------------+----------------+-----------------+
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The Sysdb Server
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----------------
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The sysdb server is a server running HTTP(S) services needed by
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other components of the deployment infrastructure, specifically to:
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- setup (add/remove/modify) the hosts managed by the system;
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- get the iPXE file for the managed hosts;
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- get the Kickstart file for the managed hosts.
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The code for these services is avaiable at `<https://git.psi.ch/linux-infra-software/sysdb>`_.
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the Puppet Server
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-----------------
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The puppet server is a rather standard puppet master, configured to
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use ``sysdb`` informations as ENC.
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The Repo Server
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---------------
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The service that provides clones of different repositories (RHEL,
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Puppetlabs, Google Chrome) plus some internally developed ones for
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specific products (eg. GPFS).
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You can reach the production one at: `<https://repos.psi.ch/rhel7/>`_.
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Deployment of an infrastructure server
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======================================
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The procedure is not fully automated and completely documented.
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The reference repo server is `<https://git.psi.ch/linux-infra/bootstrap>`_.
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The installation of an infrastructure server uses:
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- ETH repositories (since the repo server is not assumed to be available)
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- PXE only and static kickstart file (since the boot server is not supposed to be available)
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After the installation, inside ``/root/bootstrap/instcode`` there is a script for each
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server, called ``{puppet,boot,repo}-server``.
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The script should be run manually and some user interaction is needed.
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Before to install you need to have:
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- a copy of the ssh root user keys and ssh server keys
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- a Red Hat Satellite Key. You can get it via the RHN Satellite Account at ETH
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So to install eg. ``puppet00-test`` the procedure would be:
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- ensure on the Satellite web site that the system is not present (Systems-> Overview page)
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- copy the kickstart on ``/afs/psi.ch/project/linux/www/kickstart/configs/linux-infra/``
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- copy the pxe in ``/afs/psi.ch/service/linux/tftpboot/pxelinux.cfg/``
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- install the server booting from network
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- after the installation the server will stop
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- reboot it
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- login on the server
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- copy the ssh key
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- enter the ``/root/bootstrap/instcode`` directory
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- optionally change the branch
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- run ``./puppet-server``
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Please note that in some cases the ETH repo used during the
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installation is not properly working.
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In the case you are not redeploying the repo server, then it can be
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used instead of the ETH one, changing properly the PXE and the
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kickstart file.
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