This article is about run web server using ubuntu docker container on oracle cloud. I don’t use IPTABLES. I use only UFW(Uncomplicated Firewall).

$> Table-of-Contents_

0. Test envirionment

  • Oracle cloud compute instance (default set for always free)
  • ubuntu 22.04

1. Add VCN(Virtual Cloud Networks) security list rule

  1. Open the navigation menu, click Networking, and then click Virtual Cloud Networks.
  2. Click the VCN you’re interested in.
  3. Under Resources, click Security Lists.
  4. Click on the Default Security List.
  5. Here you need to open port 80. Click on + Another Ingress Rule and add the following values as shown below:
    • Source Type: CIDR
    • Source CIDR: 0.0.0.0/0
    • IP Protocol: TCP
    • Source Port Range: All
    • Destination Port Range: 80
    • Click on Add Ingress Rules at the bottom.

More details, please refer to https://docs.oracle.com/en-us/iaas/Content/Network/Concepts/securitylists.htm and https://docs.oracle.com/en/learn/lab_compute_instance/index.html

2. Connect to ubuntu system using ssh and set ufw

> sudo apt update
> sudo ufw allow 22
> sudo ufw allow 80
> yes | sudo ufw enable
> sudo systemctl enable ufw.service
> sudo ufw status
Status: active

To                         Action      From
--                         ------      ----
22                         ALLOW       Anywhere
80                         ALLOW       Anywhere
22 (v6)                    ALLOW       Anywhere (v6)
80 (v6)                    ALLOW       Anywhere (v6)

3. Install pakage and git clone

> sudo apt install -y git docker.io docker-compose
> git clone https://github.com/<user>/<repository>.git
> cd <repository>

4. Run docker container

> sudo docker-compose up --build -d
> docker ps -a