How to show error logs of a web application in AWS - apache

I have a web app uploaded in a Apache Tomcat 7.0 Server. That server is in the AWS Cloud. Do you have any idea how I can see the error logs of my web app?
It looks like this
Do you have any idea how to check this in AWS command line?
This was setup by someone else so I don't know how much access I can have in the AWS.

Are you using Elastic Beanstalk or managing your own EC2 server? Elastic Beanstalk provides methods to view the server logs. If you are just using an EC2 server you will need to SSH into the server to view the logs.

Related

Deploy web app using Elastic Beantalk without auto-scaling

I'm trying to deploy a node.js application into aws using Elastic BeansTalk. However, while creating a web server environment, it fails because my account does not havve the permission to use auto scaling due to cost. Is there a way to disable autoscaling completely with elastic beanstalk?
Yes, just create a single instance environment.
As per the AWS docs, single instance environments do not have load balancers or auto-scaling. You can read more about Elastic Beanstalk environment types here:
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features-managing-env-types.html?ref_=pe_395030_31184250_9

Freshly Installed Apache-Tomcat on the AWS server, how can I access from outside world

I have installed an App with Apache tomcat on AWS ec2 instance. I am able to access the tomcat url (which is server_name:8080/BOE/BI) from the AWS instance on Win2016. Also I installed IIS on the server.
Now what are the configurations I need to do to on AWS ec2 instance to access the URL from outside the AWS instance like from my personal PC.
I also tried disabling the firewalls, it did not helped.
You need to look at security groups. This will allow you to open up ports on your EC2 instance from the outside world.

Amazon web services elastic beanstalk (Tomcat server)

I am currently using elastic beanstalk to run .war file on web server , But the problem is that when ever I need to change some code then I need to upload the entire project again and deploy it ,it's little bit lengthy process and server remain down for few moment , So is there any solution where I can update the project files or add some extra page without letting the server down ?
You set up a blue green deployment with Elastic Beanstalk
http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.CNAMESwap.html

AWS Cloud Formations Configuring a webserver to connect to an ELB front ending an app server?

I found this great tutorial from Amazon on using cloud formation to provision an elb in front of a web server with auto scaling. What I want to do is extend this to also create a second elb with an app server behind it. I can figure out that part, but once I do I then want to configure the web server (I guess in httpd.conf to establish the connection from the web server to the app elb. does anyone have guidance on how to do this?

Amazon EC2 cloud hosting

How do I host a http server at front, while multiple tomcat server behind it in EC2?
Do we need to do session and cookie management or does EC2 has it inbuild?
Can we stream images and static resources through some other server while dynamic content from tomcat?
Check out the Java support in AWS Elastic Beanstalk. It handles the load balancing, auto scaling, metrics and deployment for you. Deploy your static assets to S3 + CloudFront instead of keeping them inside your application bundle.
There are multiple ways to host a webserver in front and redirect requests to multiple tomcat servers in backend. Assuming you have webserver and multiple tomcat servers deployed over a EC2 and tomcat. Using ajp or mod_proxy or mod_jk, you can redirect requests hitting on your webserver to your backend tomcat servers.
By default, AWS does not provide cookie or session management. You can use AWS Elasticache for session management.
Yes, you can upload your images and other static content on Amazon S3 and deliver it from S3 itself or using CloudFront (CDN) while your dynamic requests are coming to your tomcat servers.
Your questions was too broad. If you provide more details, we can help more.
Thanks
Sanket