docker-portexposenotes.txt

#port expose
#create a container with container port exposed to 8080 of machine
1) docker run -it --name pe -p 8080:80 ubuntu /bin/bash   
2) ls
3) apt update -y
4) apt install apache2 -y
5) cd /var/www/html
6) cat >index.html  (press enter)
hello world  (press enter)
ctrl D to exit
7) service apache2 start
8) now go to aws management console ....there select machine ....go to security
group in the tabs...click on (sg......) in blue color...there edit inbound rule
....and in add custom tcp ->port 8080 ->any ipv4  -> save the rule
9) now copy your public ip and paste it in browser ...<<public ip>>:8080
your app will run 


1) Launch 3 websites in 3 different containers in a single machine 
 
i) apache website -> hello world (container 1) 
ii) apache website -> hi akshat (container 2) 
iii) nginx web-> default website  (container 3) 

i) docker run -it --name con1 -p 8082:80 ubuntu /bin/bash
apt update -y
apt install apache2 -y
cd /var/www/html
cat >index.html 
hello world
ctrd d 
service apache2 start
...go to aws console and enable port 8082...now <<public ip >>:8082

ii) docker run -it --name con2 -p 8083:80 ubuntu /bin/bash
apt update -y
apt install apache2 -y
cd /var/www/html
cat >index.html 
hi akshat
ctrd d 
service apache2 start
...go to aws console and enable port 8083...now <<public ip >>:8083

iii)docker run -it --name con3-p 8084:80 nginx /bin/bash
service nginx start

...go to aws console and enable port 8084...now <<public ip >>:8084