In this article, we will be setting up a MEAN stack on Alibaba Cloud using Simple Application Server (SAS)
Log in to the Alibaba Cloud console and find Simple Application Server under Products. If you are using Simple Application Server service for the first time then you won't see anything available on the page, then you will have some text asking to "buy now". Once you click Buy now, you need to setup some configurations. Let me walk you through each of them.
Before we go further, you need an Alibaba Cloud account for carrying out the steps in this article. If you don’t have one, you can get a free one by clicking on this link.
This is the region of where you want to deploy your instance of "Simple Application Server" image. Currently the server instances can only be deployed in US West 1(Silicon Valley), Asia Pacific SE 2(Sydney), EU Central 1(Frankfurt). More regions will be added in the future.
Alibaba Cloud provides two types of images:
The image below shows some plans for the Alibaba Cloud "Simple Application Server". For demo purposes, l I will select the $4.5/month plan where we get 1 Core, 0.5GB Memory (RAM), 1TB transfer, 20GB SSD. Comparatively, Simple Application Server is much cheaper than Elastic Compute Service, but if you want more control than what we discuss here, you need to opt for ECS. Read this article to learn more about the differences between ECS and SAS.
In SAS, you will not be able to subscribe with a Pay-As-You-Go model. The minimum subscription for SAS is 1 month. You can also reset the complete instance to original state.
Once you click on Buy Now, you will be asked to confirm the order.
Once you confirmed the order, you need to pay through your preferred payment method. If you head over to the same Simple Application Server console, you will see an instance created.
Log in to your SAS instance using SSH. On Mac, you can use the terminal directly, but if you are using windows, you can do this with Putty. The commands remain the same.
Saraths-MacBook-Pro:~ sarathchandrap$ ssh root@<YOUR-HOST-NAME> root@ YOUR-HOST-NAME>'s password: Welcome to Ubuntu 14.04.5 LTS (GNU/Linux 4.4.0-108-generic x86_64) * Documentation: https://help.ubuntu.com/ New release '16.04.4 LTS' available. Run 'do-release-upgrade' to upgrade to it. Welcome to Alibaba Cloud Elastic Compute Service ! root@iZrj9gu3lzfytle0g2yhtiZ:~#
Congratulations! Your Ubuntu image is ready for use. If you wondering where you can find the password for your instance, go to the Simple Application Server Console. Click on the instance and set a password.
Let's make the Simple Application Server (SAS) Linux instance useful by installing a MEAN stack.
There are few installations you need to do for setting up MEAN stack on Linux.
We install Git version control to maintain the code. Below are the commands we use to install the git packages for Ubuntu. Run update first and then install.
sudo apt-get update
sudo apt-get install git
Need to get 2973 kB of archives.
After this operation, 21.9 MB of additional disk space will be used.
Do you want to continue? [Y/n] Y
cURL stands for "Client Uniform Resource Locator". This is used to make API calls to the other third-party servers. To install cURL, run "update" first and then install.
sudo apt-get update
sudo apt-get install curl
curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install -y nodejs
You can verify the installation after this commands by running
MongoDB falls into the category of NoSQL databases. Relational databases like MySQL requires a "Schema" upfront for creation of database. Companies/Products who are in prototyping phase cannot afford the change of schema every time there is a requirement change. This issue is solved by NoSQL databases as they adapt to the changing requirements and doesn't require a schema upfront. Since this is also a document-based database you can easily access the data and make bulk operations. MongoDB is light weight and can run on any operating system.
To install MongoDB, we need to first import the GPG key from the MongoDB servers.
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 2930ADAE8CAF5059EE73BB4B58712A2291FA4AD5
Then, update MongoDB repo for download. At the time of this writing the version of Ubuntu that comes with the Simple Application Server is 14.04 (trusty). Execute the following command to update the MongoDB repository for download.
echo "deb [ arch=amd64 ] https://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.6 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.6.list
If you have upgraded to 16.04 you can execute the following command.
echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.6 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.6.list
Reload the database package
sudo apt-get update
Then install the MongoDB Packages. Here, we want the latest version of MongoDB. The below command will install the latest version.
sudo apt-get install -y mongodb-org
The specific release can be installed by executing the below command.
sudo apt-get install -y mongodb-org=3.6.4 mongodb-org-server=3.6.4 mongodb-org-shell=3.6.4 mongodb-org-mongos=3.6.4 mongodb-org-tools=3.6.4
You can verify the installation by starting the service. This should be done automatically but you can try starting the service if it is not done automatically.
sudo service mongod start
Make sure it has started successfully by looking specifically for this in the output.
[initandlisten] waiting for connections on port 27017
If you encounter dbpath error while starting up, as shown below,
ERROR: dbpath does not exist
Then, you need to issue the following command.
sudo mongod --dbpath=/var/lib/mongodb
This essentially sets where all the documents of your database will store to. You can try starting the service, but it should start automatically.
You can stop the service using the below command.
sudo service mongod stop
You can restart the service using the command.
sudo service mongod restart
Now we will clone the mean.js boilerplate code to get started, before we do that we need to install bower globally by issuing the following command
npm install -g bower
Create a folder as you wish and clone the code using below command
git clone https://github.com/meanjs/mean.git meanjs
Then run "npm install" to download all the dependencies for the project from npm repository
Start the mean.js application by running
you will see a lot of text, but at the end you will be seeing something like this
-- MEAN.JS - Development Environment Environment: development Server: http://0.0.0.0:3000 Database: mongodb://localhost/mean-dev App version: 0.6.0 MEAN.JS version: 0.6.0 --
Congratulations! Your application is live and running at :3000. But as per default installation of Simple Application Server, your server is enabled with only some basic ports. We will head over to the console and start adding the port 3000 to the whitelist.
Go to Simple Application Server Console > Click on the server created > navigate to Firewall > Click on Add rules > Add the rule as shown below > Click OK.
Then if you head over to the browser and hit http://:3000. You should see something like this.
This means that the MEAN stack is correctly set up. You can use Alibaba Cloud Domain, Alibaba Cloud DNS Service to associate your Simple Application Server (SAS) with a domain and many other features.
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