Getting confused by the myriad of google python packages. Does anybody know which one I need for my python 3.6 application to use App Engine memcached back end for the flask-caching library?
There is no memcached provided by App Engine flexible environment. You have to use an external memcache service, such as one from RedisLabs, or roll your own in a compute engine vm.
Related
Is it possible to use R and Python using GraalVM / Truffle in a Java program on a standard OpenJDK / OracleJDK? I am able to run Javascript by simply including org.graalvm.js and org.graalvm.truffle in Maven, but I cannot find packages for R or Python to do the same.
Ideally the application would always run in GrallVM and it wouldn't be an issue, however I do not have any control over which actual VM my customers use for my application. Although I may recommend GraalVM, my customers might have valid reasons for using alternate JVMs since they will generally have to perform their own internal security audits and validations and would therefore accept only the specific VMs that they've certified for use in their environments which may or may not include GraalVM.
In short: GraalVM R and GraalVM Python, unlike GraalVM JavaScript, need more than just a jar file to run: the standard library and in case of R also native libraries. Python can do without native libraries, but using them improves compatibility.
You could bundle all that and configure the right options for your stock JDK, but for the time being this is not a scenario that is actively supported by those projects. Not saying it wouldn't work.
Details: https://github.com/oracle/graalpython/issues/96
I was using Laragon on Windows for Laravel development. I recently switched to Ubuntu and I cannot use Laragon. I love how lightweight laragon is compared to xampp. Does anyone have an alternative dev environment for Laravel/PHP development using Ubuntu?
Thank you.
Sadly there is no lightwight, simple and easy as Laragon version to Linux environment. The most you can use is Docker but is not easy, nor simple.
I just installed what i need for Laravel and work with it in my Linux Mint laptop.
I realize this is an old question, however for anyone else who comes here looking for a linux alternative to Laragon, there is a linux derivative of valet.
If you aren't familiar with valet, in the past it has been exclusive to Mac. It works really well. After simple configuration, any project in your designated directory can be accessed through the browser by navigating to projectFolderName.test. It is that simple.
https://cpriego.github.io/valet-linux/
You can use Lando.
Easy
One click installer, cross-platform, simple config file, sane defaults and reduced complexity for power features
Powerful
A single dev tool for all your projects. Lock down services, tools, dependencies and automation on a per-repo basis
Liberating
Free yourself from the mind-forged manacles of lesser dev tools. Save time, headaches, frustration and do more real work
I've just created a feature for our application which generates a powerpoint report from the data a given user has in our system.
In short, the server spawns an instance of google chrome using Selenium's ChromeDriver, and from there scrapes out the charts from our application running in chrome. It was done this way to ensure the charts in the report look exactly the same as they appear in the clients' browsers.
We use Azure Web Apps to host our development and production environments, and while my reporting feature works fine in local environments, it doesn't work once deployed to any other environments, because it depends on chrome being installed, and I can't get it installed in the Azure Web App sandboxed environment.
(you can see this other question of mine for a bit of a reference to where things are going wrong: PowerShell StartProcess: invalid handle )
SO
What I pretty much want to know is, if an Azure Web App environment isn't going to allow me to install google chrome, where should I look next?
It looks like using Service Fabric may allow me to install what I need appropriately (https://learn.microsoft.com/en-us/azure/app-service/choose-web-site-cloud-service-vm), but it seems like a big change to make just to be able to facilitate this small part of the feature.
Another option is to just re-architect the feature so it doesn't depend on the server spawning an instance of google chrome.. but I'd just prefer to avoid that if there's a straightforward way for me to get what I have working.
Ideally, there'd just be a way to get google chrome installed in the given environment, but I've spent a good 10 hours trying to get that to happen now, and it's not looking promising.
There's a couple of solutions which would work - depending on your code and framework dependencies.
IMO - the simplest way would be to build your code in a docker container (that runs the Selenium ChromeDriver) and deploy it either through the container features on Web Apps or run it on demand through ACI (Azure container instances) and have it create the report and drop it in Azure Storage. In a container you have a lot more options - and you have a great amount of options on how to run it. Spinning up an ACI on-demand to do the job can be done in multiple ways (e.g. from Code or through logic-apps or Powershell/Azure automation).
Here are some links on running containers in your App Service:
https://learn.microsoft.com/en-us/azure/app-service/containers/
https://learn.microsoft.com/en-us/azure/app-service/containers/tutorial-custom-docker-image
You could start off by building and adding your code from this image: https://github.com/SeleniumHQ/docker-selenium
Other alternatives of course - you could have a VM that you can install and do what you want with on-demand - however - it'd add more management overhead and other implications to think about.
Many options - but in the regual Web App Sandbox - you're limited.
I have found myself this problem with chromedriver.exe needing a real Chrome. As I cannot install Chrome in Azure App Service I am trying a portable version of Chrome. When using the chrome webdriver I tell it where to find the chrome binary.
var options = new ChromeOptions();
options.AddArguments("headless"); // any options you need
options.BinaryLocation = "YOUR CHROME BINARY PATH HERE";
var driver = new ChromeDriver("YOUR CHROME DRIVER PATH HERE", options);
You should be able to copy the chrome portable files as no installation is required. Although it is heavy, 250 MB, because it includes the non portable version inside.
Be sure to use a Chrome version compatible with your ChromeDriver as pointed in the documentation
Tools like MongoLab remote connection and RockMongo require a permanent URL, so the URLs generated by "meteor mongo --url" that are only valid for 1 minute don't work for long.
If you're on a mac I would recommend that fononauts build of MongoHub you put up, the ordinary Mongohub is quite buggy & on Windows use MongoVue which is perhaps the best one i've used of all.
I have some questions:
Is it possible to install openstack on a Notebook with a 4GB DD3 Ram? Because the website says it needs atleast 8GB of RAM.
They say it requirs a double-QuadCore , I assue that means Octacore. Can we install that on a Quadcore?
They say that there is no possibility to install it on a NAS . Did you find any where if there is a possibility to do?. I dint find any even after asking our friend(google).
All in all, is it at-all possible to install on it a notebook/Desktop?
That advice is for production environments,
so 1)If you just want to play around your notebook will do fine. I had a succesful test-run on a 1.2 Ghz 1GB Netbook. It became incredibly slow when it launched it's first instance...
With a Double Quadcore they actually mean two seperate Quad-cores, as in two quad-core xeon processors on a single motherboard
So 2) yes you can install it on a quad-core.
3) a NAS device running openstack an openstack storage service seems to be unlikely indeed. You will most likely need more computing power.However If your NAS supports NFS or SSH or sth you can probably mount this drive and use it for storage.
4) You can perfectly build a all-in-one openstack test setup on your notebook. Performance will be low, but acceptable for testing.
It depends on what you mean by "install OpenStack". OpenStack itself is an extremely modular framework consisting on many services (Compute, Networking, Image service, Block Storage, Object Storage, Orchestration, Telemetry, ...). On top of that, a typical production deployment of OpenStack also requires several components, like load balancers, caching systems, firewalls, web servers and others. It is definitely possible to install a minimal openstack system, even on an average laptop.
The simplest way to run OpenStack on a laptop/desktop is to use Devstack, a shell script that installs all services from source and run them (by default) on a single machine. It is customizable enough to provide very good testing ground; it's used by OpenStack developers as well as the OpenStack QA team to test latest developments against "real" systems.
To avoid messing up your system, it's generally recommended to install OpenStack in a VM. From devstack doc:
DevStack should run in any virtual machine running a supported Linux release. It will perform best with 2Gb or more of RAM.
As of the time of this writing (Jan 2015), supported distros are:
Ubuntu (latest LTS)
Fedora
CentOS
Regarding NAS: you can of course use it, but "outside" Openstack apis, by providing mount points to your vms. It's even mandatory if you want to support live migration.