Do you ever need that one of your system has some binaries installed on it and you want to transfer same binaries on another machine? Yes, Right? We are going to discuss such tool which can help you to achieve it. Exodus is a tool that makes it easy to successfully relocate Linux ELF binaries from one system to another. This is useful in situations where you don't have root access on a machine or where a package simply isn't available for a given Linux distribution.
Exodus manages collection all of the binary's dependencies, compiling a statically linked wrapper for the executable that invokes the relocated linker directly, and installing the bundle in ~/.exodus/ on the remote machine. Let's see it in action.
Installation of Exodus
Exodus can be installed from the package on pypi. Execute a below command to install it locally for your current user.
$ pip install --user exodus-bundler Collecting exodus-bundler Downloading exodus_bundler-1.1.8-py2.py3-none-any.whl Installing collected packages: exodus-bundler Successfully installed exodus-bundler-1.1.8
Add ~/.local/bin to your PATH variable to make exodus executable. This can be done by executing the below command.
export PATH="~/.local/bin/:${PATH}"This PATH is set for a current session only, to make it permanent add above command in ~/.bashrc file. You successfully installed it, now let's see how to use it.
Usage of Exodus
Installation over ssh
You can use Exodus to install an executable bundle on a remote machine. For example, One machine has package "tree" has installed on it, while other machine doesn't have. You can simply install tree package on another machine by executing below command on machine on which tree package is installed.
$ exodus tree | ssh 192.168.0.144 Pseudo-terminal will not be allocated because stdin is not a terminal. root@192.168.0.144's password: Installing executable bundle in "/opt/exodus"... Successfully installed, be sure to add /opt/exodus/bin to your $PATH.
Now, go the machine where you have just installed tree and add /opt/exodus/bin into PATH variable.
$ export PATH="/opt/exodus/bin:${PATH}"That's it. You are done. You can start using tree package on your machine. It's that simple.
Renaming Binaries
Binaries with same name can be installed in parallel using -r/--rename option.Suppose If you have two versions of tree at /bin/tree and /usr/local/bin/tree then you can create aliases for each version with -r option and You can parallely use them.
exodus -r tree-1 -r tree-2 /bin/tree /usr/local/bin/tree
Now, you can use tree at /bin/tree and /usr/local/bin/tree by tree-1 and tree-2 respectively.
Installation by manual extraction
You can create tarball of binaries directly by --tarball option. You can copy this tarball to remote machine and can install it on ~/your-path
#create tarball of tree binaries $ exodus --tarball tree --output tree.tgz #copy generated tarball to remote machine scp tree.tgz 192.168.0.144:~ #create ~/your-path ssh 192.168.0.144 "mkdir -p ~/your-path" #extract tarball to ~/your-path ssh intoli.com "tar --strip 1 -C ~/your-path -zxf tree.tgz"
Now you need to add ~/your-path into PATH variable as explained earlier. You can start using tree binaries on your remote machine.
You can explore more option by using -h(help) option, It will give you usage and all options.
usage: exodus [-h] [--ldd LDD_SCRIPT] [-o OUTPUT_FILE] [-q] [-r NEW_NAME] [-t]
[-v]
EXECUTABLE [EXECUTABLE ...]
Bundle ELF binary executables with all of their runtime dependencies so that
they can be relocated to other systems with incompatible system libraries.
positional arguments:
EXECUTABLE One or more ELF executables to include in the exodus
bundle.
optional arguments:
-h, --help show this help message and exit
--ldd LDD_SCRIPT The linker that will be invoked to resolve
dependencies. In advanced usage, you may want to write
your own `ldd` script which invokes the linker with
custom arguments. (default: ldd)
-o OUTPUT_FILE, --output OUTPUT_FILE
The file where the bundle will be written out to. The
extension depends on the output type. The
"{{executables}}" and "{{extension}}" template strings
can be used in the provided filename. If omitted, the
output will go to stdout when it is being piped, or to
"./exodus-{{executables}}-bundle.{{extension}}"
otherwise. (default: None)
-q, --quiet Suppress warning messages. (default: False)
-r NEW_NAME, --rename NEW_NAME
Renames the binary executable(s) before packaging. The
order of rename tags must match the order of
positional executable arguments. (default: [])
-t, --tarball Creates a tarball for manual extraction instead of an
installation script. Note that this will change the
output extension from ".sh" to ".tgz". (default:
False)
-v, --verbose Output additional informational messages. (default:
False)So, We have installed and see how to use exodus binaries relocation tool. Hope You find it useful, If you have anything to say on this, Let me know in comment section.
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