README


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POSIX compatible Installer for OpenTox IST/ALU Services
=======================================================

A) It is assumed that your system is configured for sudo to gain root privileges.
B) It is assumed that your system is configured for using non-free packages.

This is a POSIX-compliant  (not limited to a particular shell) Opentox installer. Please report bugs always via GitHub.

Here are some of my goals when writing the installer:
- Safe (existence of all the binaries will be checked before running, apart from GNU Core Utils)
- Idempotent (multiple execution does not change a thing)
- Atomic (return value of each non-elemtary action is asserted to be TRUE)
- Encapsulated (everything is installed in a sub-directory in $HOME)
- Logged (all non-elemtary actions are logged)


Configure your system in config.sh. NOTE for variable NGINX_PORT: leave this empty or set to ":80" to use port 80. If you do this, use the ot-scripts in "ot-tools-root.sh". Otherwise, if NGINX_PORT >1024, use ot-scripts in "ot-tools-user.sh".

Even if we officially support only *one* distro (currently Debian 6.0.1), I tested the installer successfully on various Ubuntus. In this README at the top are the requirements of the installer. By default, everything is installed to $HOME/opentox-ruby (=OT_PREFIX). The configs go to OT_PREFIX/.sh_<Package>_ot.sh for each package.

After running the installer, configure the system by editing the startup file of your favorite shell (in my case, BASH with the file ~ /. bashrc) to include ~/.opentox-ui.sh (in my case with 'source ...'). This file is the only one that the installer creates outside OT_PREFIX. Thus, the system is fully configured: If you now open a new shell, all environment variables will be adjusted.

To start the system I run the following (but that is not part of the installer):
nohup $HOME/opentox-ruby/redis-2.2.2/src/redis-server $HOME/opentox-ruby/redis-2.2.2/redis.conf &
nohup $HOME/opentox-ruby/nginx/sbin/nginx -c $HOME/opentox-ruby/nginx/conf/nginx.conf &

To uninstall the system simply delete the link from the startup file: Done. To save disc space delete directory OT_PREFIX.
Anyone can run multiple Opentox versions on the same machine: Just install again, but to a different OT_PREFIX. The switch works manually: Include the sh_<Package>_ot.sh files from the desired OT_PREFIX in $HOME/opentox-ui.sh (only one installation may be activated  at any time).