I have created an image from a running instance which had a web application/service running in it.But after I did this the webservice is not working,though the running instance is fine and health checks are ok.What would have happened while I made the image?Please help
When you create an image from a running EC2 instance, it will reboot by default unless you specify the "No Reboot" option. This will have interrupted your web service, depending on how you've configured it to recover from reboots.
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what I did is I deployed Tomcat application in EC2 but I install and configure it previously before launching the ec2.
basically, when your machine of app comes up, it should have the tomcat application already deployed in it
without running the shell commands manually to install and configure tomcat.
Right now the problem is when I stopped the ec2 and start it again the tomcat application was not pop up when I hit the IP.
can you please tell me how to solve this problem?
If I understood correctly, you need to run a set of commands on instance startup to configure your application/server.
You can do this with a user data script. User data is executed at launch, and you can configure it to run on restarts as well.
If I understood right, you want your tomcat to be started everytime you restart your server.
You can configure the tomcat as a linux service and enable that service so that it will start tomcat every time your system reboots. This way, you don't have to start tomcat manually each time system reboots.
Reference: https://www.digitalocean.com/community/tutorials/install-tomcat-on-linux
I've got a windows application that has been deployed to an AWS EC2 instance which has then been configured to run on startup via the task scheduler. This all works as intended with one exception. When I remote into the EC2 instance, I can't see the application. It's running (visible on the task manager) and producing the output as expected but the GUI is not visible and I'd like to be able to see it when I RDP into the instance.
It is being launched via the task scheduler and I can't find anything in the settings to enable the GUI to be visible for the application when I remote into the system. Is there an EC2 instance setting that needs to be enabled to make this possible?
I am setting up an infrastructure to deploy my application on AWS. I am using ECS service because I am trying to deploy a Docker-based application. So far I have created a task definition with two containers one for the apache and another one for PHP. Then I launched an ECS cluster with an EC2 instance and a task running. They all seem to be up and running. Now, I am trying to figure out how I can access the apache of my EC2 instance with the Cluster on the browser.
This is how I created the apache container.
And then I created the php container as follow.
Then I launched an EC2 based ECS cluster with one instance in it. Then I run one task within the cluster. Then I tried to open the public IP address of my instance. It just keeps loading loading and loading. What is wrong with my configuration? How can I access it on the browser?
It seems to me there's a couple of possible scenarios here you could check:
If do you reach the service and are stuck on an endless reloading loop, which might point to something in your code that could be causing it to do that,
If you're having a long wait time till the browser actually gives a timeout, which might be caused by not having the right port open on the Security Group associated with your task definition.
I have a running EC2 instance on which one of the database having transactional records stored through the application running on the same instance. I've change the port due to some security reasons but after changing port I'm unable to SSH to the instance.
My security group and NACL both having old as well as new port configured in it.
I've tried to SSH several times but it gives error Network Error: Connection timeout.
I'm scared about to data lost if this instance gets stopped. Need help!
You can login to instance without losing data with the help of 'session manager' option under the "System Manager". You will need to complete certain per-requisites of the session manager as follows given in the Amazon docs for Systems Manager Prerequisites
After completing the per-requisites assign the IAM role to the EC2 instance created for SSM.
Into the AWS console, search for the session manager option under the System manager and your instance ID will get listed over there.
Select the instance and choose for the Start session, you will get the shell console of your instance.
Revert the changes made in /etc/ssh/sshd_config for the port and try to SSH again.
I am running Bitnami WordPress on AWS server website working since two days but suddenly it stop showing anything and connection timeout is showing. The instance EC2 is running perfectly fine, and I have also seen IP logs, and nothing suspicious has come up.
Based on the above comments I guess the issue is with the internal web server
Make sure that the web server is running perfectly fine. And I do not mean just checking the EC2 instance state, because it is possible that the EC2 instance is running but the web server is down, causing the issue