"meteor" vs "meteor bundle" for production - meteor

For production why should I "bundle" the meteor application and not just copy
the sources on the server use the "meteor" command?
Basically what is the difference between:
"meteor bundle app.tar.gz", then installing the right version of fibers and nodejs
and extracting the archive and starting with "node main.js" the app,
and copying the project sources on the server and just writing "meteor" to start
the app?

This won't be an exhaustive list, but here are some things that the meteor command does:
creates a local database
watches on every dependent file in your app or in your packages
sends every file separately and unminified to the client (this is super inefficient unless you are developing locally)
In contrast, bundling an app:
does not create a local database
does not spend CPU watching your files for changes
creates two minified files (js and css) which is perfect for putting on a CDN or hosting from a reverse proxy. These are also efficient for clients to download and are highly cacheable.
In general, deploying shouldn't be a huge pain if you use a good set of scripts.

When using a bundle:
It will not spawn meteor-mongo(Mongodb inside meteor)
No hot reloads
Meteor will not watch your files.
You can leave/quit the server without killing your app.
You can manage node processes smoothly by using pm2 or other similar npm packages.
You can decide where to put your mongoDB and decide what port to use.
You can connect to your mongodb remotely by not having to run your meteor app.
While using a copy or running meteor command in the project directory:
You can't leave/quit the server while keeping the project running without using any screen multiplexers (e.g. tmux)
You can only use meteor's assigned mongodb which is spawned in localhost:3001 -- if meteor is using port 3000.
You are letting meteor to watch over file changes which uses CPU.
When your app dies, your db dies. :)

Related

Why do we need to deploy a meteor app instead of just starting it?

As we all know, we can run a meteor app by just typing meteor in a terminal.
By default it will start a server and use port 3000.
So why do I need to deploy it using MUP etc.
I can configure it to use port 80 or use nginx to route to port 80 for the app. So the port is not the point.
Edit:
Assume meteor is running on a VPS or cloud server with public IP address, not a personal computer.
MUP does a few extra things you can do yourself:
it 'bundles' the code into a single file, using meteor build bundle
the javascript is one file, and css another; it's minified, and obfuscated so it's smaller and faster to load, and less easy to decipher on the client.
some packages are also meant to be removed when running in production. For example meteorToys, the utility toolset to look up collections and much more, is not bundled into the production bundle, as per the instructions in its package. This insures you don't deploy code with security vulnerabilities (Meteor toys basically opens up client side delete / updates etc... if you're not careful)
So, in short, it installs a minimal version of your site, making sure that what's meant for development only doesn't get push to a production environment.
EDIT: On other reason to do this, is that you don't need all the Meteor build tools on your production server; that can add up to a lot of stuff, especially if you keep caches going for a while...
I believe it also takes care of hooking up to a remote MongoDB Instance (at least it used to be the case on the free meteor site) which is more scalable and fault tolerant than running on the same instance as the web server, as well as provision storage etc... if needed.
basically, to deploy a Meteor app yourself manually, you need to:
on your dev box:
meteor build bundle your app to a tar file (using the architecture flag corresponding to the OS you will use)
on the server:
install node v0.10 (or whatever is the current version of node required by Meteor)
you might have to install Fiber#1.0.5 (but I believe this is now part of meteor install already)
untar the bundle, get into bundle/programs/server/ and run npm install
run the server with node main.js in the bundle folder.
The purpose of deploying an application is that you are situating your project on hardware outside of your local machine. For example if you deploy an application on Heroku app you create a repository on heroku's systems and that code based is used to serve your application off of their servers.
If you just start an application on your personal system, you will suffer a lack of network and resource availability as well as under use of computer time at non-peak hours as your system will need to remain attentive for additional users without having alternative tasks. Hosting providers provide resources as needed, and their diverse client base allows their systems to work around the clock on a global scale.

Meteor application dies when I close my ssh session with server

Standard procedure to start with
meteor app -p 3000&
This works, except when I close the ssh connection, application is no more running? I have no clue why this is happening.
Awakening Edit:
I use PM2 for traditional node apps, but if I have to setup process monitors, logs, database all by myself. I could just go back to reactjs and socketio and rock it with node.
Consider use mup package from Arunoda to easily deploy and run your app in production.
You could launch meteor with nohup (no hang-up) which serves this purpose.
nohup meteor --production &
But it's not a good idea to run a site in production with meteor anyway.
What should I do to run meteor forever ?
You can use forever, a Node.js tool designed to run node apps as services.
I also want to point that forever is getting old and I've heard of better recent alternatives but it seems to still be a pretty common tool. You could also use systemd which integrates better with the UNIX service ecosystem but that's anoter story.
But first, you'll have to "demeteorize" your meteor application like this :
cd my-project-meteor
meteor bundle --directory ../my-project-node
this is going to take some time
cd ../my-project-node/programs/server
npm install
this is going to take some time too
So now you have a plain node app, that you can run with node main.js
Let me mention that it might be a good idea to use the node version used by meteor which is 0.10.29 as of meteor 0.9.1 You can install it traditionally or you could use the node version that is shipped with the meteor tool.
sudo ln -s ~/.meteor/packages/meteor-tool/1.0.27/meteor-tool-os.linux.x86_64/dev_bundle/bin/node /usr/bin/node
sudo ln -s ~/.meteor/packages/meteor-tool/1.0.27/meteor-tool-os.linux.x86_64/dev_bundle/bin/npm /usr/bin/npm
Note that this way of "installing" node + npm on your system is problematic because :
it assumes you're doing only meteor related stuff.
it is dependant on the release process of the meteor tool (you'll need to rerun these commends if the meteor tool is updated).
You can install the forever tool using npm :
-g means globally : give access to forever to all users on the system
sudo npm install -g forever
To launch your node app as a service, you can use the following command, which sets correctly some environment variables and run the app using forever :
sudo export PORT=80 MONGO_URL=mongodb://localhost/my-project-mongodb ROOT_URL=http://localhost forever start my-project-node/main.js
You can monitor it using forever stop my-project-node/main.js
Also, what's the point of using 3rd party database service like https://mongolab.com/?
When using the meteor tool, it launches a mongod process automatically for you, and the underlying node process executed by meteor representing your app connects to this mongo instance.
When we want to launch our meteor app as a node app, we have to handle the mongo stuff ourself, which kinda answer the question : why not using another service to handle it for us, they know better, right ?
Doesn't it slow down the website, because now application has to connect to their database instead of local database ?
Of course, relying on a 3rd party database service has its inconvenients, and this is one of them. Network communications will always be slower than interprocess communications taking place on localhost (this is especially true on these SSD backed cheap VPS you can find nowadays).
And how exactly do I connect to mongolab for example ?
By setting an appropriate value to the environment variable MONGO_URL, the database service provider will give you an url that corresponds to your online mongodb, this is what you need to pass to the node process in command line if you want meteor to connect to your distant database and work as usual.
If you want to launch a dedicated local mongod instance to let your application connect to it, well this is another topic but you'll have to follow these steps :
first install mongodb correctly on your server, using the reference documentation for the OS version. By correctly I mean choose the same version as meteor is using currently (2.4.9) and let it run as a service so that it will actually restart when your server reboots.
test that mongod is running by launching a client with the mongo command.
pass the correct MONGO_URL when launching your app with forever (something like mongodb://localhost/my-project-mongodb)
Understand now why meteor deploy is amazing :D
Answer copy from here

How do you push updates to a deployed meteor app that has a filesystem?

I have an app running on my own digitalocean VM that I'm trying to play around with to figure out how to run a meteor production server. I deployed it with meteor build, but now I'm a bit unsure about how to push updates. If I build a new tarball on my own machine, I will loose file references that my users have made to files in bundle/uploads, because the remote filesystem isn't incorporated into my local project. I can imagine some hacky ways to work around this, but besides hosting the files on s3 or another 3rd party server, is there any way to "hot code push" into the deployed app without needing to move files around on my server?
Am I crazy for wondering what the meteor equivalent of git push/pull is in production, or just ignorant?
You can use dokku (https://github.com/progrium/dokku). DigitalOcean allows you to create an instance pre-installed with dokku too.
Once you've set up your ssh keys, set the environment variables, ROOT_URL, PORT and MONGO_URL you can add that server as a git remote and simply git push to it.
Dokku will automatically build up the Meteor app and have it running, and keep it up to date whenever you git push.
I find Dokku is very convenient. There's also flynn and deis which are able to do the same in multi tenant environment with way more options.
Just one thing to keep in mind with this is to push the guys who own the repo to keep the Node version in the buildpack up to date. Meteor is a bit overzealous when it comes to using the latest version of Node and refusing older versions.
Meteor does lack a bit in this department. I can't remember where I may have heard this, but I believe they intend on adding this very popular Meteor deployment package to their library. Short of switching to a more compatible host, I'm not aware of any better solutions.

meteor in PROD, deploying live code changes

What is best approach to have live code changes deployed to PROD.
So that
i don't have to restart my servers.
And don't want to push the entire bundle.tgz file
What are the options ??
We have a Meteor app in production - We upload the new bundle and prepare it (updating the native fibers) and restart - you have to restart the node thread.
You might say that you kick all clients, but Meteor is build to handle poor connections and will reconnect - it uses delay algorithm to help flatten out reconnects.
If the client is ready for migration the new code is then pushed.
Our app is running Meteor inside cordova and we use appcache making sure that clients can allways open our app even if offline.
NOTE: MDG is working on Galaxy - a cool and easy way of managing your own Meteor servers - so deployment would be a single line in a terminal. (eta aprox. first part of 2014)
Easy deployment to your own server (DigitalOcean, Amazon EC2, etc) can be done using meteoric.
Meteoric can setup your server and deploy latest commit to production.
I use it and it works great.

How do you deploy your ASP.NET applications to live servers?

I am looking for different techniques/tools you use to deploy an ASP.NET web application project (NOT ASP.NET web site) to production?
I am particularly interested of the workflow happening between the time your Continuous Integration Build server drops the binaries at some location and the time the first user request hits these binaries.
Are you using some specific tools or just XCOPY? How is the application packaged (ZIP, MSI, ...)?
When an application is deployed for the first time how do you setup the App Pool and Virtual Directory (do you create them manually or with some tool)?
When a static resource changes (CSS, JS or image file) do you redeploy the whole application or only the modified resource? How about when an assembly/ASPX page changes?
Do you keep track of all deployed versions for a given application and in case something goes wrong do you have procedures of restoring the application to a previous known working state?
Feel free to complete the previous list.
And here's what we use to deploy our ASP.NET applications:
We add a Web Deployment Project to the solution and set it up to build the ASP.NET web application
We add a Setup Project (NOT Web Setup Project) to the solution and set it to take the output of the Web Deployment Project
We add a custom install action and in the OnInstall event we run a custom build .NET assembly that creates an App Pool and a Virtual Directory in IIS using System.DirectoryServices.DirectoryEntry (This task is performed only the first time an application is deployed). We support multiple Web Sites in IIS, Authentication for Virtual Directories and setting identities for App Pools.
We add a custom task in TFS to build the Setup Project (TFS does not support Setup Projects so we had to use devenv.exe to build the MSI)
The MSI is installed on the live server (if there's a previous version of the MSI it is first uninstalled)
We have all of our code deployed in MSIs using Setup Factory. If something has to change we redeploy the entire solution. This sounds like overkill for a css file, but it absolutely keeps all environments in sync, and we know exactly what is in production (we deploy to all test and uat environments the same way).
We do rolling deployment to the live servers, so we don't use installer projects; we have something more like CI:
"live" build-server builds from the approved source (not the "HEAD" of the repo)
(after it has taken a backup ;-p)
robocopy publishes to a staging server ("live", but not in the F5 cluster)
final validation done on the staging server, often with "hosts" hacks to emulate the entire thing as closely as possible
robocopy /L is used automatically to distribute a list of the changes in the next "push", to alert of any goofs
as part of a scheduled process, the cluster is cycled, deploying to the nodes in the cluster via robocopy (while they are out of the cluster)
robocopy automatically ensures that only changes are deployed.
Re the App Pool etc; I would love this to be automated (see this question), but at the moment it is manual. I really want to change that, though.
(it probably helps that we have our own data-centre and server-farm "on-site", so we don't have to cross many hurdles)
Website
Deployer:
http://www.codeproject.com/KB/install/deployer.aspx
I publish website to a local folder, zip it, then upload it over FTP. Deployer on server then extracts zip, replaces config values (in Web.Config and other files), and that's it.
Of course for first run you need to connect to the server and setup IIS WebSite, database, but after that publishing updates is piece of cake.
Database
For keeping databases in sync I use http://www.red-gate.com/products/sql-development/sql-compare/
If server is behind bunch of routers and you can't directly connect (which is requirement of SQL Compare), use https://secure.logmein.com/products/hamachi2/ to create VPN.
I deploy mostly ASP.NET apps to Linux servers and redeploy everything for even the smallest change. Here is my standard workflow:
I use a source code repository (like Subversion)
On the server, I have a bash script that does the following:
Checks out the latest code
Does a build (creates the DLLs)
Filters the files down to the essentials (removes code files for example)
Backs up the database
Deploys the files to the web server in a directory named with the current date
Updates the database if a new schema is included in the deployment
Makes the new installation the default one so it will be served with the next hit
Checkout is done with the command-line version of Subversion and building is done with xbuild (msbuild work-alike from the Mono project). Most of the magic is done in ReleaseIt.
On my dev server I essentially have continuous integration but on the production side I actually SSH into the server and initiate the deployment manually by running the script. My script is cleverly called 'deploy' so that is what I type at the bash prompt. I am very creative. Not.
In production, I have to type 'deploy' twice: once to check-out, build, and deploy to a dated directory and once to make that directory the default instance. Since the directories are dated, I can revert to any previous deployment simply by typing 'deploy' from within the relevant directory.
Initial deployment takes a couple of minutes and reversion to a prior version takes a few seconds.
It has been a nice solution for me and relies only on the three command-line utilities (svn, xbuild, and releaseit), the DB client, SSH, and Bash.
I really need to update the copy of ReleaseIt on CodePlex sometime:
http://releaseit.codeplex.com/
Simple XCopy for ASP.NET. Zip it up, sftp to the server, extract into the right location. For the first deployment, manual set up of IIS
Answering your questions:
XCopy
Manually
For static resources, we only deploy the changed resource.
For DLL's we deploy the changed DLL and ASPX pages.
Yes, and yes.
Keeping it nice and simple has saved us alot of headaches so far.
Are you using some specific tools or just XCOPY? How is the application packaged (ZIP, MSI, ...)?
As a developer for BuildMaster, this is naturally what I use. All applications are built and packaged within the tool as artifacts, which are stored internally as ZIP files.
When an application is deployed for the first time how do you setup the App Pool and Virtual Directory (do you create them manually or with some tool)?
Manually - we create a change control within the tool that reminds us the exact steps to perform in future environments as the application moves through its testing environments. This could also be automated with a simple PowerShell script, but we do not add new applications very often so it's just as easy to spend the 1 minute it takes to create the site manually.
When a static resource changes (CSS, JS or image file) do you redeploy the whole application or only the modified resource? How about when an assembly/ASPX page changes?
By default, the process of deploying artifacts is set-up such that only files that are modified are transferred to the target server - this includes everything from CSS files, JavaScript files, ASPX pages, and linked assemblies.
Do you keep track of all deployed versions for a given application and in case something goes wrong do you have procedures of restoring the application to a previous known working state?
Yes, BuildMaster handles all of this for us. Restoring is mostly as simple as re-executing an old build promotion, but sometimes database changes need to be manually restored, and data loss can occur. The basic rollback process is detailed here: http://inedo.com/support/tutorials/performing-a-deployment-rollback-with-buildmaster
web setup/install projects - so you can easily uninstall it if something goes wrong
Unfold is a capistrano-like deployment solution I wrote for .net applications. It is what we use on all of our projects and it's a very flexible solution. It solves most of the typical problems for .net applications as explained in this blog post by Rob Conery.
it comes with a good "default" behavior, in the sense that it does a lot of standard stuff for you: getting the code from source control, building, creating the application pool, setting up IIS, etc
releases based on what's in source control
it has task hooks, so the default behaviour can be easily extended or altered
it has rollback
it's all powershell, so there aren't any external dependencies
it uses powershell remoting to access remote machines
Here's an introduction and some other blog posts.
So to answer the questions above:
How is the application packaged (ZIP, MSI, ...)?
Git (or another scm) is the default way to get the application on the target machine. Alternatively you can perform a local build and copy the result over the Powereshell remoting connection
When an application is deployed for the first time how do you setup the App Pool and Virtual Directory (do you create them manually or with some tool)?
Unfold configures the application pool and website application using Powershell's WebAdministration Module. It allows us (and you) to modify any aspect of the application pool or website
When a static resource changes (CSS, JS or image file) do you redeploy the whole application or only the modified resource? How about when an assembly/ASPX page changes?
Yes unfold does this, any deploy is installed next to the others. That way we can easily rollback
when somehting goes wrong. It also allows us to easily trace back a deployed version to
a source control revision.
Do you keep track of all deployed versions for a given application?
Yes, unfold keeps old versions around. Not all versions, but a number of versions. It makes rolling back almost trivial.
We've been improving our release process for the past year and now we've got it down pat. I'm using Jenkins to manage all of our automated builds and releases, but I'm sure you could use TeamCity or CruiseControl.
So upon checkin, our "normal" build does the following:
Jenkins does a SVN update to fetch the latest version of the code
A NuGet package restore is done running against our own local NuGet repository
The application is compiled using MsBuild. Setting this up is an adventure, because you need to install the correct MsBuild and then the ASP.NET and MVC dll's on your build box. (As a side note, when I had <MvcBuildViews>true</MvcBuildViews> entered in my .csproj files to compile the views, msbuild was randomly crashing, so I had to disable it)
Once the code is compiled the unit tests are run (I'm using nunit for this, but you can use anything you want)
If all the unit tests pass, I stop the IIS app pool, deploy the app locally (just a few basic XCOPY commands to copy over the necessary files) and then restart IIS (I've had problems with IIS locking files, and this solved it)
I have separate web.config files for each environment; dev, uat, prod. (I tried using the web transformation stuff with little success). So the right web.config file is also copied across
I then use PhantomJS to execute a bunch of UI tests. It also takes a bunch of screenshots at different resolutions (mobile, desktop) and stamps each screenshot with some information (page title, resolution). Jenkins has great support for handling these screenshots and they are saved as part of the build
Once the integration UI tests pass the build is successful
If someone clicks "Deploy to UAT":
If the last build was successful, Jenkins does another SVN update
The application is compiled using a RELEASE configuration
A "www" directory is created and the application is copied into it
I then use winscp to synchronise the filesystem between the build box and UAT
I send a HTTP request to the UAT server and make sure I get back a 200
This revision is tagged in SVN as UAT-datetime
If we've got this far, build is successful!
When we click "Deploy to Prod":
The user selects a UAT Tag that was previously created
The tag is "switched" to
Code is compiled and synced with Prod server
Http request to Prod server
This revision is tagged in SVN as Prod-datetime
The release is zipped and stored
All up a full build to production takes about 30 secs which I'm very, very happy with.
Upsides to this solution:
It's fast
Unit tests should catch logic errors
When a UI bug gets into production, the screenshots will hopefully show what revision # caused the it
UAT and Prod are kept in sync
Jenkins shows you a great release history to UAT and Prod with all of the commit messages
UAT and Prod releases are all tagged automatically
You can see when releases happen and who did them
The main downsides to this solution are:
Whenever you do a release to Prod you need to do a release to UAT. This was a conscious decision we made because we wanted to always ensure that UAT is always up to date with Prod. Still, it's a pain.
There's quite a few configuration files floating around. I've attempted to have it all in Jenkins, but there's a few support batch files needed as part of the process. (These are also checked in).
DB upgrade and downgrade scripts are part of the app and run at app startup. It works (mostly), but it's a pain.
I'd love to hear any other possible improvements!
Back in 2009, where this answer hails from, we used CruiseControl.net for our Continuous Integration builds, which also outputted Release Media.
From there we used Smart Sync software to compare against a production server that was out of the load balanced pool, and moved the changes up.
Finally, after validating the release, we ran a DOS script that primarily used RoboCopy to sync the code over to the live servers, stopping/starting IIS as it went.
At the last company I worked for we used to deploy using an rSync batch file to upload only the changes since the last upload. The beauty of rSync is that you can add exclude lists to exclude specific files or filename patterns. So excluding all of our .cs files, solution and project files is really easy, for instance.
We were using TortoiseSVN for version control, and so it was nice to be able to write in several SVN commands to accomplish the following:
First off, check the user has the latest revision. If not, either prompt them to update or run the update right there and then.
Download a text file from the server called "synclog.txt" that details who the SVN user is, what revision number they are uploading and the date and time of the upload. Append a new line for the current upload and then send it back to the server along with the changed files. This makes it extremely easy to find out what version of the site to roll back to on the off chance that an upload causes problems.
In addition to this there is a second batch file that just checks for file differences on the live server. This can highlight the common problem where someone would upload but not commit their changes to SVN. Combined with the sync log mentioned above we could find out who the likely culprit was and ask them to commit their work.
And lastly, rSync allows you to take a backup of the files that were replaced during the upload. We had it move them into a backup folder So if you suddenly realised that some of the files should not have been overwritten, you can find the last backup up version of every file in that folder.
While the solution felt a little clunky at the time I have since come to appreciate it a whole lot more when working in environments where the upload method is a lot less elegant or easy (remote desktop, copy and paste the entire site, for instance).
I'd recommend NOT just overwriting existing application files but instead create a directory per version and repointing the IIS application to the new path.
This has several benefits:
Quick to revert if needed
No need to stop IIS or the app pool to avoid locking issues
No risk of old files causing problems
More or less zero downtime (usually just a pause at the new appdomain initialises)
The only issue we've had is resources being cached if you don't restart the app pool and rely on the automatic appdomain switch.

Resources