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https://github.com/soyfrien/makeswap-on-azure.service
systemd service that ensures a swapfile exists or is created on the volatile temporary drive in an Azure VM.
https://github.com/soyfrien/makeswap-on-azure.service
azure azure-storage systemd ubuntu-server
Last synced: about 2 months ago
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systemd service that ensures a swapfile exists or is created on the volatile temporary drive in an Azure VM.
- Host: GitHub
- URL: https://github.com/soyfrien/makeswap-on-azure.service
- Owner: soyfrien
- License: mit
- Created: 2020-03-07T15:50:59.000Z (almost 5 years ago)
- Default Branch: main
- Last Pushed: 2022-05-16T08:54:50.000Z (over 2 years ago)
- Last Synced: 2023-03-10T00:40:56.947Z (almost 2 years ago)
- Topics: azure, azure-storage, systemd, ubuntu-server
- Language: Shell
- Homepage:
- Size: 605 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE
- Code of conduct: CODE_OF_CONDUCT.md
Awesome Lists containing this project
README
[](https://github.com/soyfrien/makeswap-on-azure.service/actions/workflows/deploy20-04.yml) [](https://github.com/soyfrien/makeswap-on-azure.service/actions/workflows/test-swapping20-04.yml)
# Index
1. [Overview](#makeswap-on-azureservice)
2. [Usage](#usage)
- [Install](#install)
- [Uninstall](#uninstall)
- [Upgrade](#upgrade)
- [Adjust amount of virtual memory](#adjust-amount-of-virtual-memory)
# makeswap-on-azure.service
Ensures a swapfile exists or is created on the volatile temporary drive in an Azure VM.
> **Temporary disk**
>
> Every VM contains a temporary disk, which is not a managed disk. The temporary disk provides short-term storage for
> applications and processes and is intended to only store data such as page or swap files. Data on the temporary disk
> may be > lost during a maintenance event event or when you redeploy a VM. On Azure Linux VMs, the temporary disk is
> /dev/sdb by default and on Windows VMs the temporary disk is D: by default. During a successful standard reboot of
> the VM, the data on the temporary disk will persist.
>
> [Azure Disk Storage overview for Linux VMs](https://docs.microsoft.com/en-us/azure/virtual-machines/linux/managed-disks-overview?toc=%2Fazure%2Fvirtual-machines%2Flinux%2Ftoc.json#temporary-disk)
# Usage
## Install
### Option A: Pre-packaged
```
wget -q https://github.com/ppdac/makeswap-on-azure.service/releases/latest/download/makeswap-on-azure.service.deb
sudo dpkg --install makeswap-on-azure.service.deb
sudo systemctl enable makeswap-on-azure.service
sudo systemctl restart makeswap-on-azure.service
```
### Option B: From source
```
mkdir ~/git; cd ~/git
git clone https://github.com/ppdac/makeswap-on-azure.service.git
rm -rf ~/git/makeswap-on-azure.service/.git
rm -rf ~/git/makeswap-on-azure.service/.github
dpkg-deb --build ~/git/makeswap-on-azure.service
sudo dpkg --install ~/git/makeswap-on-azure.service.deb
sudo systemctl enable makeswap-on-azure.service
sudo systemctl restart makeswap-on-azure.service
rm -rf ~/git/makeswap-on-azure.service
rm ~/git/makeswap-on-azure.service.deb
```
## Uninstall
```
sudo dpkg --remove makeswap-on-azure
```
## Upgrade
- Uninstall
- Install
## Adjust amount of virtual memory
The amount of virtual memory is dynamically determined, loosely based around the table on the
[Ubuntu SwapSize FAQ](https://help.ubuntu.com/community/SwapFaq#How_much_swap_do_I_need.3F).
You can set your desired size at any time, by writing to this file `/etc/makeswap-on-azure/swap_size`.
For example:
```
echo "1G" > /etc/makeswap-on-azure/swap_size
sudo systemctl restart makeswap-on-azure.service
```
The value can be something like:
- 8192K
- 2048M
- 1.5G