Ubuntu2404 Install Docker and Docker Compose - Revision history

AwesomO: /* Install First Container/Image */

2025-09-01T21:16:15Z

Install First Container/Image

← Older revision		Revision as of 21:16, 1 September 2025
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	</syntaxhighlight>		</syntaxhighlight>
	If any items remain, repeat the relevant removal commands or check for dependencies.		If any items remain, repeat the relevant removal commands or check for dependencies.

			==Docker Compose container==

AwesomO: /* Run container */

2025-09-01T21:13:29Z

Run container

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 </div>
 </div>
 * Now visit http://localhost:8080 on your browser

AwesomO: /* Run container */

2025-09-01T20:50:32Z

Run container

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    completenoobs/cnoobs-wiki:0.1
 </pre>
 * Now visit http://localhost:8080 on your browser

AwesomO at 17:34, 1 September 2025

2025-09-01T17:34:45Z

← Older revision		Revision as of 17:34, 1 September 2025
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			===If Installing Docker messed up your LXC/LXD Networking===
			To resolve networking conflicts between Docker and LXC containers on Ubuntu 24.04, enable IP forwarding on the host system:
			* Open the sysctl configuration file in your preferred editor
			<code>sudo $EDITOR /etc/sysctl.conf</code>
			* Uncomment or add the following line (around line 28):
			<pre>net.ipv4.ip_forward=1</pre>
			* Apply the updated configuration to enable IP forwarding:
			<code>sysctl -p</code><br>
			* Restart the system to ensure all changes take effect.

			This should resolve the networking issue for LXC containers when Docker is installed.

			==Install First Container/Image==

			Download the completenoobs container image, mediawiki with the completenoobs xml installed.

			<code>docker pull completenoobs/cnoobs-wiki:0.1</code>

			===Run container===

			* Quick Start
			<code>docker run -d -p 8080:80 completenoobs/cnoobs-wiki:0.1</code>

			* Quick Start with Persistent Storage
			<pre>
			docker run -d -p 8080:80 \
			-v completenoobs_mysql:/var/lib/mysql \
			-v completenoobs_images:/var/www/html/images \
			--name completenoobs_wiki \
			completenoobs/cnoobs-wiki:0.1
			</pre>

			* Now visit http://localhost:8080 on your browser

			* Due to (unknown) bug you might need to update the xml to download missing pages:
			<code>docker exec -it completenoobs_wiki /var/www/html/check_updates.sh</code>

			<div class="toccolours mw-collapsible mw-collapsed">
			Change Admin Password:
			<div class="mw-collapsible-content">

			By default, the admin user's password is <code>AdminPass123!</code>. It's highly recommended to change this immediately. You can do this either through the wiki's web interface or directly in the Docker terminal.<br><br>

			<b>Method 1: Change Password via Web Interface</b><br>
			This is the easiest method. You can change your password directly from the wiki itself.<br>

			1. Log in to your wiki with the default credentials: <code>admin</code> / <code>AdminPass123!</code>.<br>
			2. Once logged in, click your username (<code>admin</code>) in the top-right corner of the page.<br>
			3. From the drop-down menu, select <b>Preferences</b>.<br>
			4. On the Preferences page, go to the <b>Password</b> tab.<br>
			5. Enter the current password (<code>AdminPass123!</code>), then enter your new password twice.<br>
			6. Click <b>Change password</b>.<br>

			Your password is now changed, and you will need to use the new one for future logins.<br><br>

			<b>Method 2: Change Password via Terminal (No-Email Reset)</b><br>
			If you have forgotten the password or prefer to use the command line, you can reset it directly inside the Docker container using a MediaWiki maintenance script.<br>

			1. <b>Access the container's shell</b> with the following command from your host machine:<br>
			<syntaxhighlight lang="bash">
			docker exec -it completenoobs_wiki bash
			</syntaxhighlight>

			2. Once inside the container, use the <code>changePassword.php</code> maintenance script to change the password. This is the modern, recommended way to run MediaWiki maintenance scripts.<br>
			* Change <b>NEWPASSWORD</b> to your new password<br>
			<syntaxhighlight lang="bash">
			php /var/www/html/maintenance/run.php changePassword.php --user=admin --password=NEWPASSWORD
			</syntaxhighlight>

			3. Type <code>exit</code> to leave the container's shell.<br>

			The admin password has now been reset. You can log in to your wiki with the new password.
			</div>
			</div>

			===Remove container===

			To completely remove the <code>completenoobs/cnoobs-wiki:0.1</code> container and image from your Ubuntu 24.04 system, follow these steps. You can also remove associated persistent storage volumes if they were created.<br><br>

			<b>Step 1: Stop and Remove the Container</b><br>
			If the container is running, stop it and then remove it.<br>
			<syntaxhighlight lang="bash">
			docker stop completenoobs_wiki
			docker rm completenoobs_wiki
			</syntaxhighlight>
			Alternatively, stop and remove in one command:<br>
			<syntaxhighlight lang="bash">
			docker rm -f completenoobs_wiki
			</syntaxhighlight><br>

			<b>Step 2: Remove the Docker Image</b><br>
			Remove the <code>completenoobs/cnoobs-wiki:0.1</code> image.<br>
			<syntaxhighlight lang="bash">
			docker rmi completenoobs/cnoobs-wiki:0.1
			</syntaxhighlight>
			Note: If the image is in use by other containers, remove those containers first or use <code>docker rmi -f completenoobs/cnoobs-wiki:0.1</code> to force removal (use with caution).<br><br>

			<b>Step 3: Remove Persistent Storage Volumes (Optional)</b><br>
			If you used persistent storage, remove the associated volumes to free up space.<br>
			<syntaxhighlight lang="bash">
			docker volume rm completenoobs_mysql completenoobs_images
			</syntaxhighlight>
			Note: Ensure no other containers are using these volumes, as this will delete all stored data.<br><br>

			<b>Step 4: Verify Removal</b><br>
			Check that the container, image, and volumes are removed.<br>
			- List all containers (including stopped ones):<br>
			<syntaxhighlight lang="bash">
			docker ps -a
			</syntaxhighlight>
			- List all images:<br>
			<syntaxhighlight lang="bash">
			docker images
			</syntaxhighlight>
			- List all volumes:<br>
			<syntaxhighlight lang="bash">
			docker volume ls
			</syntaxhighlight>
			If any items remain, repeat the relevant removal commands or check for dependencies.

AwesomO: /* Install Docker and Docker Compose */

2025-08-30T14:40:45Z

Install Docker and Docker Compose

← Older revision		Revision as of 14:40, 30 August 2025
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	</source>		</source>

			<!--
	* '''Install Docker Compose''':		* '''Install Docker Compose''':

Line 60:		Line 61:
	sudo chmod +x /usr/local/bin/docker-compose		sudo chmod +x /usr/local/bin/docker-compose
	</source>		</source>
			-->

	=== Verify Installation ===		=== Verify Installation ===

AwesomO: Created page with "=== Preparation === Before we begin, make sure you're logged in with a user account that has sudo privileges. === Update System Packages === Update your package list to ensure you have the latest versions of packages: sudo apt update && sudo apt upgrade -y === Install Docker Prerequisites === Install the necessary packages for Docker setup: sudo apt install -y apt-transport-https ca-certificates curl software-pro..."

2025-08-10T20:12:14Z

Created page with "=== Preparation === Before we begin, make sure you're logged in with a user account that has sudo privileges. === Update System Packages === Update your package list to ensure you have the latest versions of packages: <source lang="bash"> sudo apt update && sudo apt upgrade -y </source> === Install Docker Prerequisites === Install the necessary packages for Docker setup: <source lang="bash"> sudo apt install -y apt-transport-https ca-certificates curl software-pro..."

New page

=== Preparation ===

Before we begin, make sure you're logged in with a user account that has sudo privileges.

=== Update System Packages ===

Update your package list to ensure you have the latest versions of packages:

<source lang="bash">
sudo apt update && sudo apt upgrade -y
</source>

=== Install Docker Prerequisites ===

Install the necessary packages for Docker setup:

<source lang="bash">
sudo apt install -y apt-transport-https ca-certificates curl software-properties-common
</source>

=== Setup Docker Repository ===

* '''Add Docker's Official GPG Key''':

<source lang="bash">
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
</source>

* '''Add the Docker Repository''':

<source lang="bash">
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null
</source>

=== Install Docker and Docker Compose ===

* '''Update Package List Again''':

<source lang="bash">
sudo apt update
</source>

* '''Install Docker Engine, CLI, Containerd, and Additional Tools''':

<source lang="bash">
sudo apt install -y docker-ce docker-ce-cli containerd.io python3-bs4 python3-requests docker-compose
</source>

* '''Install Docker Compose''':

Here we're downloading the latest version of Docker Compose:

<source lang="bash">
sudo curl -L "https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
</source>

Make the Docker Compose binary executable:

<source lang="bash">
sudo chmod +x /usr/local/bin/docker-compose
</source>

=== Verify Installation ===

Check if Docker and Docker Compose are installed correctly:

<source lang="bash">
docker --version
docker-compose --version
</source>

=== Configure User Permissions ===

To run Docker commands without <code>sudo</code>, add your user to the <code>docker</code> group:

<source lang="bash">
sudo usermod -aG docker $USER
</source>

'''Note''': After adding your user to the docker group, you'll need to '''log out and log back in''' for the changes to take effect.
If you do not log out and back in, Or you do not add your $USER to the docker group, you will be required to use sudo in some cases. such as ..

<div class="toccolours mw-collapsible mw-collapsed">
a way to apply group changes without logging out and back in - tip:
<div class="mw-collapsible-content">
<pre>
exec sudo su -l $USER
</pre>

This command will replace your current shell with a new login shell for your user, which will have the updated group memberships. Both of these methods will apply the group changes immediately, allowing you to use LXD commands without having to log out and back in.

<b>Remember</b>, these changes only apply to the current terminal session. If you open a new terminal window, you might need to run the command again or log out and back in for the changes to take effect system-wide.
</div>
</div>