How do I run and access iPython Notebook (in Docker on EC2) from the browser?
This is what I tried:
From EC2 Quick Start menu, selected Amazon Linux AMI 2015.03 on t2.micro instance.
Everything left as default, except 3 rules created for "Configure Security Group":
Type: "SSH"; Protocol: "TCP"; Port Range: "22"; Source: "Anywhere";
Type: "HTTPS"; Protocol: "TCP"; Port Range: "443"; Source: "Anywhere";
Type: "Custom TCP Rule"; Protocol: "TCP"; Port Range: "8888"; Source: "Anywhere";
After SSH'ing to instance:
$ sudo yum install -y docker ; sudo service docker start
$ sudo docker pull continuumio/miniconda # Anaconda includes iPython Notebook
$ sudo docker run -it -p 8888:8888 continuumio/miniconda ipython notebook
Then launching browser to https://ec2-xx-x-x-xxx.compute-1.amazonaws.com:8888 didn't work.
I wouldn't be too comfortable opening 443 and 8888 on the Internet for my EC2 instances. My common setup is Anaconda on an Ubuntu box.
I usually ssh port forward my ipython notebook sessions to my localhost on my macbook with this ssh command:
ssh -i myPrivateSSHKey.pem ubuntu#54.1.2.3 -L 8888:localhost:8888
Then I open Chrome and request URL:
http://127.0.0.1:8888
Related
I wanted to launch a little static website on an EC2 instance and I followed the following steps:
launched a t2.micro instance using console in us-east-1 region
attached an existing security group which allows http request, https and ssh.
logged in my ec2 through SSH and changed it into an apache web server using following commands:
commands:
#bin/bash
sudo su
yum update -y
yum install httpd -y
cd /var/www/html
Then I wrote a hello world html code in index.html file and started my web service
service httpd start
chkconfig on
Even after following all the above steps, when I open try to access the webpage by going to the public ipv4 address of my ec2 instance, I am getting a timout error.
Any idea what I might be missing here?
Thank you.
You can try creating new EC2 instance like below
Lunch the same type of instance
Add below script in user data to create HTML page
#!/bin/bash
Use this for your user data (script from top to bottom)
install httpd
yum update -y
yum install -y httpd
systemctl start httpd
systemctl enable httpd
echo "Hello World - $(hostname -f)" > /var/www/html/index.html
After launching EC2, open that security group and add below HTTP rule
At the end, manually type HTTP://your public address. sometimes by default its shows with HTTPS so just ensure you are typing HTTP only.
I wrote a very simple spring-boot application and packed it in Docker.
The content of docker file is:
FROM openjdk:13
ADD target/HelloWorld-1.0-SNAPSHOT.jar HelloWorld.jar
EXPOSE 8085
ENTRYPOINT ["java", "-jar", "HelloWorld.jar"]
I pushed it to docker hub.
I created a new EC2 instance on aws. Then I connected to it and typed the following commands:
sudo yum update -y
sudo yum install docker -y
sudo service docker start
sudo docker run -p 80:8085 ****/docker-hello-world
The last command gave many messages on the screen that said that spring-boot application is running.
Looks great. However, when I opened my browser and typed: "http://ec2-54-86-87-68.compute-1.amazonaws.com/" (public DNS of EC2 machine).
I got "This site can’t be reached".
Do you know what I did wrong?
Edit: security groups that regard this machine are "default" and the following group that I defined:
Inside the EC2 machine, I typed:"curl localhost:8085" and got:
"curl: (52) Empty reply from server"
Ensure that your port's inbound traffic is enabled for your local IP address in your ec2 instance security group configuration
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-security-groups.html#adding-security-group-rule
Have you allowed inbound traffic for port 8085 in your security group configuration? That should be the first thing to check.
I found the solution.
It was port issues.
Instead of running
sudo docker run -p 80:8085 ****/docker-hello-world
I had to run:
sudo docker run -p 8085:8080 ****/docker-hello-world
This command says: "take the application that runs on port 8080 in the application and put it on port 8085 on docker".
I opened the browser and browsed to: "http://ec2-18-207-188-57.compute-1.amazonaws.com:8085/hello" and got the response I expected.
I have launch EC2 ubuntu instance and security group for this is instance allows 22,80,443 ports from 0.0.0.0/0.
Now i have installed docker on this EC2 instance.Then i have created an apache2 container and also mapped the port to access from browser using below command
sudo docker run -p 80:80 -t -i ubuntu /bin/bash
Then i create an lampstack conatiner and tried to map port using below command
sudo docker run -p 443:443 -t -i linode/lamp /bin/bash
Now docker ps gives me below
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS Name
d0751e67fd69 linode/lamp "/bin/bash" 4 min Up 4 0.0.0.0:443>443/tcp
affectionate_hamilton
0fb4e13a272a ubuntu "/bin/bash" 11 minutes 0.0.0.0:80->80/tcp
vigorous_robinson
When i take the public ip of my EC2 machine and put in browser i can see the apache page but how can i assess my Lampstack page ?
Please correct me if i have done port mapping incorrectly
You only need the LAMP container and in that one you should map the port 80:
sudo docker run -d --name lamp -t -p 80:80 linode/lamp top
Check that the container is up and running:
sudo docker ps --filter name=lamp
Now start the services:
sudo docker exec -ti lamp service apache2 start
sudo docker exec -ti lamp service mysql start
Test your setup from host:
curl http://localhost
If you want to test a connection from a different container you can start a separate ubuntu container that links to your original container "lamp":
docker run -ti --rm --link lamp --name ubuntu-box ubuntu bash
Inside the container install curl and test your connection:
apt update && apt-get install curl -y
curl http://lamp
I have a linux AWS instance. I am running the following script on it:
#!/usr/bin/env bash
#This script installs java, sbt and the application
#Run this script on a new EC2 instance as the user-data script, which is run by `root` on machine start-up.
sudo yum update -y
sudo yum install -y docker
sudo service docker start
docker run repo/carrie
Everything installs and I get the below message in the logs:
REST interface bound to /0.0.0.0:8080
However when I try to actually access the port like so:
curl 0.0.0.0/8080
I get the below message:
Failed to connect to 0.0.0.0 port 8080: Connection refused
I have tried editing the inbound rules so that 8080 is open but it doesn't seem to work. Maybe because I'm editing the rules after the instance has already launched?
You have to publish the container's port to the host in the docker run command
$ docker run --help
...
-p, --publish list Publish a container's port(s) to the host
...
The last line of your script should look like this if the process in the container listens on port 80:
docker run -p 8080:80 repo/carrie
The container gets its own interface, hence host's 0.0.0.0 is not applicable.
Tell docker to bind container port 8080 out to the host:
docker run -p 8080:8080 repo/carrie
I have 2 aws ec2 instances. One instance is running Jenkins, the other is running Docker. I am trying to connect the container running on the Docker host to Jenkins as a node.
To start the container on the Docker host I ran the following:
sudo dockerd -H tcp://127.0.0.1:2376 -H unix:///var/run/docker.sock
In the cloud settings (under jenkins/configure)
Docker Host URI:
tcp://IP-ADDRESS-OF-EC2-DOCKER-HOST:2376
Docker Hostname or IP address: IP-ADDRESS-OF-EC2-DOCKER-HOST
Dockerfile:
FROM ubuntu:16.04
RUN apt-get update
RUN apt-get install openjdk-8-jdk -y
RUN mkdir -p /home/jenkins
EXPOSE 22
ec2 Docker host security open incoming ports: 2375, 2376, 4243, 22
When I hit the "Test Connection" button, I get:
Connection refused: /IP-ADDRESS-OF-EC2-DOCKER-HOST:2376
java.net.ConnectException: Connection refused
Caused: io.netty.channel.AbstractChannel$AnnotatedConnectException:
Connection refused: /IP-ADDRESS-OF-EC2-DOCKER-HOST:2376
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:352)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:340)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:632)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:579)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:496)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:458)
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858)
at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:138)
at java.lang.Thread.run(Thread.java:748)
On another stackoverflow post, someone recommended hitting the "Apply" button first, but that doesn't work because I get an error popup stactrace stating a java.lang.NullPointerException.
Try giving IP-ADDRESS-OF-EC2-DOCKER-HOST instead of 127.0.0.1 in below CMD
sudo dockerd -H tcp://127.0.0.1:2376 -H unix:///var/run/docker.sock
Test port is open from docker to Jenkins host using
telnet docker_host_ ip 2376