143 lines
4.1 KiB
Markdown
143 lines
4.1 KiB
Markdown
# Installing Webmin and Docker on Ubuntu
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This guide walks you through installing Webmin on Ubuntu and expanding logical volumes via Webmin’s interface. Additionally, it covers Docker installation on Ubuntu.
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---
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## Part 1: Installing Webmin on Ubuntu
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Webmin is a web-based interface for managing Unix-like systems, making tasks such as user management, server configuration, and software installation easier.
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### Step 1: Update Your System
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Before installing Webmin, update your system to ensure all packages are up to date.
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```bash
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sudo apt update && sudo apt upgrade -y
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```
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### Step 2: Add the Webmin Repository and Key
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To add the Webmin repository, download and run the setup script.
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```bash
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curl -o setup-repos.sh https://raw.githubusercontent.com/webmin/webmin/master/setup-repos.sh
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sudo sh setup-repos.sh
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```
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### Step 3: Install Webmin
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With the repository set up, install Webmin:
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```bash
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sudo apt-get install webmin --install-recommends
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```
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### Step 4: Access Webmin
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Once installed, Webmin runs on port 10000. You can access it by opening a browser and navigating to:
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```
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https://<your-server-ip>:10000
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```
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If you are using a firewall, allow traffic on port 10000:
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```bash
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sudo ufw allow 10000
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```
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You can now log in to Webmin using your system's root credentials.
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---
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## Part 2: Expanding a Logical Volume Using Webmin
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Expanding a logical volume through Webmin’s Logical Volume Management (LVM) interface is a simple process.
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### Step 1: Access Logical Volume Management
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Log in to Webmin and navigate to:
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**Hardware > Logical Volume Management**
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Here, you can manage physical volumes, volume groups, and logical volumes.
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### Step 2: Add a New Physical Volume
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If you've added a new disk or partition to your system, you need to allocate it to a volume group before expanding the logical volume. To do this:
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1. Locate your volume group in the Logical Volume Management module.
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2. Click **Add Physical Volume**.
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3. Select the new partition or RAID device and click **Add to volume group**. This action increases the available space in the group.
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### Step 3: Resize the Logical Volume
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To extend a logical volume:
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1. In the **Logical Volumes** section, locate the logical volume you wish to extend.
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2. Select **Resize**.
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3. Specify the additional space or use all available free space in the volume group.
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4. Click **Apply** to resize the logical volume.
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### Step 4: Resize the Filesystem
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After resizing the logical volume, expand the filesystem to match:
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1. Click on the logical volume to view its details.
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2. For supported filesystems like ext2, ext3, or ext4, click **Resize Filesystem**. The filesystem will automatically adjust to the new size of the logical volume.
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---
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## Part 3: Installing Docker on Ubuntu
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This section covers installing Docker on Ubuntu.
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### Step 1: Remove Older Versions
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If you have previous versions of Docker installed, remove them:
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```bash
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sudo apt remove docker docker-engine docker.io containerd runc
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```
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### Step 2: Add Docker's Official GPG Key and Repository
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Add Docker’s GPG key and repository to your system’s Apt sources:
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```bash
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sudo apt-get update
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sudo apt-get install ca-certificates curl
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sudo install -m 0755 -d /etc/apt/keyrings
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sudo curl -fsSL https://download.docker.com/linux/ubuntu/gpg -o /etc/apt/keyrings/docker.asc
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sudo chmod a+r /etc/apt/keyrings/docker.asc
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echo \
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"deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
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$(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
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sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
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sudo apt-get update
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```
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### Step 3: Install Docker
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Now, install Docker:
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```bash
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sudo apt-get install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
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```
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### Step 4: Post-Installation Steps
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To allow your user to run Docker commands without `sudo`, add your user to the Docker group:
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```bash
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sudo usermod -aG docker $USER
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newgrp docker
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```
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Test your Docker installation by running the following command:
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```bash
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docker run hello-world
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```
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For more information, visit the official [Docker installation page](https://docs.docker.com/engine/install/ubuntu/). |