85 lines
2.1 KiB
Markdown
85 lines
2.1 KiB
Markdown
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# Working on Virtual Machines
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As a member of the staff or the dev-team, you may have been given access to our cloud vendors like Azure, Digital Ocean, etc.
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Here are some handy commands that you can use to work on the VMs, for instance performing maintenance updates or doing general houeskeeping.
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# Keeping Virtual Machines Updated
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You should keep the Virtual Machines up to date by performing updates and upgrades. This will ensure that the virtual machine is patched with latest security fixes.
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> [!WARNING]
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> Before you run these commands:
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> - Make sure that the VM has been provisioned completely and there is no post-install steps running.
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> - If you are updating packages on a VM that is already serving an application, make sure the app has been stopped / saved. Package updates will cause network bandwidth, memory and/or CPU usage spikes leading to outages on running applications.
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Update package information
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```console
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sudo apt update
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```
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Upgrade installed packages
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```console
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sudo apt upgrade -y
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```
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Cleanup unused packages
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```console
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sudo apt autoremove -y
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```
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# Getting a list of the Virtual Machines
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> [!NOTE]
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> You may already have SSH access to virtual machines, but that alone will not let you list VMs unless you also have access to the vendor portals as well.
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## Azure
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Install Azure CLI `az`: https://docs.microsoft.com/en-us/cli/azure/install-azure-cli
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> **(One-time) Install on macOS with [`homebrew`](https://brew.sh):**
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```
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brew install azure-cli
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```
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> **(One-time) Login:**
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```
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az login
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```
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> **Get the list of VM names and IP addresses:**
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```
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az vm list-ip-addresses --output table
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```
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## Digital Ocean
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Install Digital Ocean CLI `doctl`: https://github.com/digitalocean/doctl#installing-doctl
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> **(One-time) Install on macOS with [`homebrew`](https://brew.sh):**
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```
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brew install doctl
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```
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> **(One-time) Login:**
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Authentication and context switching: https://github.com/digitalocean/doctl#authenticating-with-digitalocean
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```
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doctl auth init
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```
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> **Get the list of VM names and IP addresses:**
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```
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doctl compute droplet list --format "ID,Name,PublicIPv4"
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```
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