I do not have access to the admin account in Windows 7. Is there a way to install RabbitMQ and its required Erlang without admin privileges? In some portable way?
I need to use it in my Python Celery project.
Thanks!
It is possible. Here's how I've done it:
You need to create a portable Erlang and acquire RabbitMQ server files.
You can install regular Erlang to another computer, then copy the whole installation directory to the computer with limited account. You can use local documents, or AppData like C:\Users\Limited_Account\AppData\erl5.10.4
(If you don't have any access to another computer, you can extract the setup file with 7-Zip but it'll be troublesome to fix paths.)
Modify the erg.ini in the bin folder with the new path. (By default erg.ini uses Unix line endings, so it might be seen as a single line.)
[erlang]
Bindir=C:\\Users\\Limited_Account\\AppData\\erl5.10.4\\erts-5.10.4\\bin
Progname=erl
Rootdir=C:\\Users\\Limited_Account\\AppData\\erl5.10.4\\erl5.10.4
See if bin\erl.exe opens up Erlang Shell. If you see a crash dump, path might not be correct. If Visual C++ Redist. files were not installed before, it will nag you about msvcr100.dll and you need to manually copy them as well but I don't recommended that.
Download the zip version of RabbitMQ server from https://www.rabbitmq.com/install-windows-manual.html and extract it.
Set %ERLANG_HOME% variable. You can type set ERLANG_HOME="C:\\Users\\Limited_Account\\AppData\\erl5.10.4\" in command line. Alternatively, you can add this line to every .bat in the sbin folder.
Now you can use the management scripts in the sbin folder. For example, you can use rabbitmq_server-3.2.4\sbin\rabbitmq-server.bat to start the RabbitMQ Server. Obviously, starting as a service is not an option because you are not an admin.
For further information, see: https://www.rabbitmq.com/install-windows-manual.html
Related
I have a client for whom I have created a program that utilizes a variety of data and machine learning packages. The client would like for the program to be easily run without installing any type of python environment. Is this possible?
I am assuming the best bet would be to transform the .py file into a .exe file but am unsure of how to do this if I have packages that need to be installed before the program can be run.
Are there websites that exist that allow you to easily host complex .py files on them to be run by anyone that accesses the URL?
I think you are looking for "freezing", which package everything including the interpreter, libs and packages into a single executable file.
There are several tools for this purpose:
https://wiki.python.org/moin/Freeze
https://docs.python-guide.org/shipping/freezing/
I think the use of colaboratory that is cloud service provided by Google might be better. Your client who has to sign up for Google account can not only run the python program, but also utilize any major python packages on the cloud (of course, it's possible to install the necessary packages into the client's cloud space), without constructing the python environment on client's local PC. What's more, it's at free!
I am looking for a web server, where I can upload files and download files from Ubuntu to Windows and the vice versa. I've builded a web server with Python and I share my folder in Ubuntu and download the files in this folder at Windows. Now I want to look up every millisecond if there is a new file and download this new files automatically. Is there any script or something helpfully for me?
Is a python web server a good solution?
There are many ways to synchronise folders, even remote.
If you need to stick with the python server approach for some reason, look for file system events libraries to trigger your upload code (for example watchdog).
But if not, it may be simpler to use tools like rsync + inotify, or simply lsync.
Good luck!
Edit: I just realized you want linux->windows sync, not the other way around, so since you don't have ssh server on the target (windows), rsync and lsync will not work for you, you probably need smbclient. In python, consider pysmbc or PySmbClient
I want to execute a script via the "execute shell" build section of my build's configuration
sudo python buildscript.py param1 param2
however I don't know how/where to actually upload the script. Hope this makes sense, I don't have shell access to the Jenkins server (or I would put it in the workspace directory I'm guessing) so I'm wondering if there's an upload interface that I missed somewhere.
You can create a project on your version control system to keep all your scripts. Then, just create a job on jenkins to fetch them (dont need to build anything). They will be made available on the filesystem, inside ~jenkins/workspace, and everytime you change them, Jenkins will make sure they keep up-to-date on the build machine.
For sudo, you need to have ssh access (or know who has) as #Bruno suggested, and grant jenkins user that permission.
You should just put buildscript.py in version control next to your source files -- I assume you already have an action configured in your job config to checkout your sources from version control?
I'm building some simple editors with Backbone.js, and I'm hoping to be able to distribute them as apps for users to edit content in a mostly client-side way (i.e., I don't want users to have to futz with setting up stuff like MySQL or Apache).
So I was imagining a scenario like:
User downloads a .zip file
In the resulting opened folder, the user clicks index.html
That opens in a browser
Backbone app starts, stores data in localStorage
The user can then export to CSV.
Believe it or not, that would solve my problem: I want to help users edit data in a browser and then get it back out in a familiar format (CSV can be loaded into Excel, for instance).
And I’d like to do this without forcing them to configure a server. It seems like this is almost possible in the HTML5 stack. However, in at least one browser (Chrome), this doesn't work, because I get errors like this one:
XMLHttpRequest cannot load file:///users/me/project/data/Appdata.json. Origin null is not allowed by Access-Control-Allow-Origin.
(Oddly enough, I don't get that error in Firefox, and the .js or .json files load fine.)
So at this point it seems to me that there's no way around having these users use something kind of local server to serve up the Backbone interface.
So, I'm trying to figure out how to build a distributable, cross-platform executable that will allow my users to start a Flask server. (I hope to build a REST backend to a Backbone.js app.)
Is this wishful thinking? I'm assuming I can get the people in question to install Python.
Is this doable? There seem to be many ways to package up Python programs, (pyinstaller? py2exe? ...) So I thought I would ask here in case someone might know of a solution for the stack I have in mind.
TIA!
You can use Anthony Gordon McMillan’s Pyinstaller or Tuininga’s cx_Freeze
Quoting the PyInstaller website:
Features
Packaging of Python programs into standard executables, that work on
computers without Python installed.
Multiplatform: works under
Windows (32-bit and 64-bit),
Linux (32-bit and 64-bit),
Mac OS X (32-bit only, 64-bit in git, see Features/MacOsCompatibility) and
experimentally Solaris and AIX (in git).
Multiversion: works under any version of Python from 2.2 up to 2.7.
My suggestion would be to create a thin service wrapper around your code. This will allow the server to run independently of your main codebase - also allowing the user to shut down the server directly (simply right clicking the service icon and selecting "Exit").
This SO answer should help you get started.
After reading your updated question, I think something like mongoose might be more suited to your task. It is an embeddable web server that is FLOSS and has python bindings. Flask might be overkill.
Not easily. On Windows, you'd have to include Python itself. Mac and Linux usually have Python installed, but you can't be sure of what version so it's often easier to bundle your specific Python for them as well. Then you'd have to include all the dependencies that you want to run with in your package or be able to install them with pip, easy_install, etc.
You can use py2app and py2exe. This won't be cross-platform as you'll still need to make a different version for each target OS. The only way to make it cross-platform is to bundle all versions and have some cross-platform code execute the appropriate version for that platform.
If you need databases like MySQL or even SQLite things get more complicated as you'll have to include those too.
I have a set of binary assets (swf files) each about 150Kb in size. I am developing them locally on my home computer and I want to periodically deploy them for review. My current strategy is:
Copy the .swf's into a transfer directory that is also a hg (mercurial) repo.
hg push the changes to my slicehost VPN
ssh onto my slicehost VPN
cd to my transfer directory and hg up
su www and cp the changed files into my public folder for viewing.
I would like to automate the process. Best case scenario is something close to:
Copy the .swf's into a "quick deploy" directory
Run a single local script to do all of the above.
I am interested in:
advice on where to put passwords since I need to su www to transfer files into the public web directories.
how the division of responsibility between local machine and server is handled.
I think using rsync is a better tool than hg since I don't really need a revision history of these types of changes. I can write this as a python script, a shell script or however is considered a best practice.
Eventually I would like to build this into a system that can handle my modest deployment needs. Perhaps there is an open-source deployment system that handles this and other types of situations? I'll probably roll-my-own for this current need but long term I'd like something relatively flexible.
Note: My home development computer is OS X and the target server is some recent flavour of Ubuntu. I'd prefer a python based solution but if this is best handled from the shell I have no problems putting it together that way.
to avoid su www I see two easy choices.
make a folder writable to you and readable by www's group in some path that the web-server will be able to serve, then you can rsync to that folder from somewhere on your local machine.
put your public ssh key in www's authorized_keys and rsync to the www user (a bit less security in some setups perhaps, but not much, and usually more convenient).
working around su www by putting your or its password in some file would seem far less secure.
A script to invoke "rsync -avz --partial /some/path www#server:some/other/path" should be quick to write in python (although I do not python well).
If you're at all comfortable in Python, I recommend Fabric for automated deployment scripts.
In addition to group permissions or ssh-ing as www (with key-based auth), a third solution to the permissions issue would be to add your user to /etc/sudoers and use sudo (you can specify the exact command your user is allowed to use sudo for, so you can make the security implications minimal).