Minio in an Alpine Linux VM

 

Alpine is a really nice, really light Linux distribution that is often use as the base for a lot of containerized applications. This video demonstrates how to create an appliance-like VM with a minimal Alpine install to run Minio from boot. 

All of the steps aside from running the start up command using cron are in the documentation below. It is truly very simple to get working in Alpine if you just need something simple to act as an S3 object store with HTTP/HTTPS file sharing capabilities. 

A couple of mistakes in the videos are there because by copying the commands from the documentation I forgot to adjust the start up and cron commands to the directory we gave it. This is why at minute 5:50 I am checking the wrong directory and the new directory is shown (miniodata vs minio). Overall it is pretty simple and perhaps the mkdir command can be skipped depending on your preference.

References:

For the basic setup on Linux:
https://min.io/docs/minio/linux/index.html

For Debian/Ubuntu or RedHat/CentOS/Fedora installs:
https://min.io/docs/minio/linux/operations/install-deploy-manage/deploy-minio-single-node-single-drive.html 

If there are any questions, please let me know in the comments. 

Upgrading Nextcloud in Docker

 

This is a quick post on updating and maintaining a Docker install of Nextcloud. I have had my install pretty much untouched since I first put it up about a year or two ago. The whole time it's been fine, but I heard about performance improvements in later versions and have begun the process of upgrading the service. 

Here are some steps to check for. 

Based on my previous restore experience, I know that going from one version of docker to the next can sometimes be version dependent. What has worked in managing the upgrades is to upgrade one version at a time. 

To do this, first check what Nextcloud describes as the newest version. Enter the system as the 'admin' user, go to 'Settings' -> 'Overview'. A screen like below should show.

Nextcloud will give a few suggestions of areas to make your instance more secure or highlight any issues (this is a private instance without HTTPS, as noted, and without a lot of the Calendar and other apps), and it will display what the next version is. 

That next version will be the upgrade target for the Docker instance.

In your host, you can first pull the new Docker image of Nextcloud by running:

sudo docker image pull nextcloud:<the target version from the UI>

This will save some time in the upgrade.

Next make sure everything is saved and no one is using the containers. Stop the containers with:

sudo docker stop <nextcloud container name> <nextcloud DB container name>

In my sample docker-compose reference the command would look like:

sudo docker stop nxtcloud nxtclouddb

Then modify the docker-compose.yml file with the new image specified just downloaded. For example 25.0.3 shown below. 

app:

image: nextcloud:25.0.3

container_name: nxtcloud

restart: unless-stopped

  ports: 

  .....

Once changed bring up the containers again.

sudo docker-compose up

Here I omit the -d for running in the background. This offers a terminal view of the upgrade similar to below.

Give that a few minutes, and then the Nextcloud should be upgraded to the new version. 

To ensure the containers can be run in the background without an active terminal, stop the containers again, and re-run the sudo docker-compose up -d with the -d flag.

Some more information about Nextcloud is throughout the blog - just click on the Overview page or search by the Nextcloud tags on the right-hand side. 

For more information about the reference docker-compose to get started with it and a MariaDB instance check out the source in GitHub.