infra/devdoc/hosts.md

## Hosts

### `build01`

- Provider: Hetzner
- Instance type: AX60
- CPU: AMD Ryzen 7 1700X Eight-Core Processor
- RAM: 64GB
- Drives: 2 x 512 GB SATA SSD

### `build02`

- Provider: Hetzner
- Instance type:
- CPU: AMD Ryzen 7 3700X Eight-Core Processor
- RAM: 64GB DDR4 ECC
- Drives: 2 x 1 TB NVME in RAID 1

### `build03`

- Provider: Hetzner
- Instance type: [AX41](https://www.hetzner.com/dedicated-rootserver/ax41-nvme)
- CPU: AMD Ryzen 5 3600 6-Core Processor
- RAM: 64GB DDR4 ECC
- Drives: 2 x 512 GB NVME in RAID 1

### `build04`

- Provider: Oracle cloud
- Instance type: [Ampere A1 Compute](https://www.oracle.com/cloud/compute/arm/)
- CPU: 4 VCPUs on an Ampere Altra (arm64)
- RAM: 24GB
- Drives: 200 GB Block

### `darwin02`

- Provider: Hetzner
- Instance type: [Apple Mac mini M1](https://docs.hetzner.com/robot/dedicated-server/mac-mini/getting-started/)
- CPU: Apple M1
- RAM: 16GB
- Drives: 256GB SSD

### `darwin03`

- Provider: Hetzner
- Instance type: [Apple Mac mini M1](https://docs.hetzner.com/robot/dedicated-server/mac-mini/getting-started/)
- CPU: Apple M1
- RAM: 16GB
- Drives: 256GB SSD

### `web01`

- Provider: Hetzner
- Instance type: [CX31](https://www.hetzner.com/cloud)
- CPU: 2 vCPUs on Intel Xeon
- RAM: 8GB
- Drives: 80GB SSD

### `web02`

- Provider: Gandi
- Instance type: [V-R4](https://www.gandi.net/en-GB/cloud/vps)
- CPU: 2 CPU
- RAM: 4GB
- Drives: 25GB

## SSH config:

You will need to set your admin username if it doesn't match your local username.

```
Host *.nix-community.org
  User <youradminusername>
```

## Deployment commands:

```console
$ ./inv deploy
```

If you want to reboot a machine, use the following command:

```console
$ inv deploy --hosts build02 reboot --hosts build02
```

## Install/Fix system from Hetzner recovery mode

1. Copy your ssh key to the recovery system so that the kexec image can re-use it.

```console
yourmachine> ssh-copy-id root@build0X.nix-community.org
```

2. Download and boot into kexec-image:

```console
$ curl -L https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-kexec-installer-x86_64-linux.tar.gz | tar -xzf- -C /root
$ /root/kexec/run
```

### Debug VM

You can start a vm from the rescue system in order to debug the boot:

```console
$ nix-shell -p qemu_kvm --run 'qemu-kvm -m 10G -hda /dev/sda -hdb /dev/sdb -curses -cpu host -enable-kvm'
```
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00			`## Hosts`

			### `build01`

format tree 2023-03-26 14:02:59 +10:00			`- Provider: Hetzner`
devdoc/hosts.md: update 2023-08-08 08:43:22 +10:00			`- Instance type: AX60`
format tree 2023-03-26 14:02:59 +10:00			`- CPU: AMD Ryzen 7 1700X Eight-Core Processor`
			`- RAM: 64GB`
			`- Drives: 2 x 512 GB SATA SSD`
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00
			### `build02`

format tree 2023-03-26 14:02:59 +10:00			`- Provider: Hetzner`
devdoc/hosts.md: update 2023-08-08 08:43:22 +10:00			`- Instance type:`
format tree 2023-03-26 14:02:59 +10:00			`- CPU: AMD Ryzen 7 3700X Eight-Core Processor`
			`- RAM: 64GB DDR4 ECC`
			`- Drives: 2 x 1 TB NVME in RAID 1`
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00
			### `build03`

format tree 2023-03-26 14:02:59 +10:00			`- Provider: Hetzner`
devdoc/hosts.md: update 2023-08-08 08:43:22 +10:00			`- Instance type: [AX41](https://www.hetzner.com/dedicated-rootserver/ax41-nvme)`
format tree 2023-03-26 14:02:59 +10:00			`- CPU: AMD Ryzen 5 3600 6-Core Processor`
			`- RAM: 64GB DDR4 ECC`
			`- Drives: 2 x 512 GB NVME in RAID 1`
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00
			### `build04`

format tree 2023-03-26 14:02:59 +10:00			`- Provider: Oracle cloud`
			`- Instance type: [Ampere A1 Compute](https://www.oracle.com/cloud/compute/arm/)`
			`- CPU: 4 VCPUs on an Ampere Altra (arm64)`
			`- RAM: 24GB`
			`- Drives: 200 GB Block`
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00
darwin02: init 2023-05-16 18:58:13 +10:00			### `darwin02`

darwin02: scaleway -> hetzner 2023-07-17 21:13:04 +10:00			`- Provider: Hetzner`
			`- Instance type: [Apple Mac mini M1](https://docs.hetzner.com/robot/dedicated-server/mac-mini/getting-started/)`
darwin02: init 2023-05-16 18:58:13 +10:00			`- CPU: Apple M1`
darwin02: scaleway -> hetzner 2023-07-17 21:13:04 +10:00			`- RAM: 16GB`
darwin02: init 2023-05-16 18:58:13 +10:00			`- Drives: 256GB SSD`

darwin03: init 2023-07-17 09:37:43 +10:00			### `darwin03`

			`- Provider: Hetzner`
			`- Instance type: [Apple Mac mini M1](https://docs.hetzner.com/robot/dedicated-server/mac-mini/getting-started/)`
			`- CPU: Apple M1`
			`- RAM: 16GB`
			`- Drives: 256GB SSD`

hosts.web01: init This machine is intended to host web applications. Initially [Lemmy](https://join-lemmy.org/), but perhaps more down the line. The initial PR only deals with setting up the machine and required infra like DNS, not setting up Lemmy itself which will be a follow-up. 2023-07-04 16:55:32 +12:00			### `web01`

			`- Provider: Hetzner`
devdoc/hosts.md: update 2023-08-08 08:43:22 +10:00			`- Instance type: [CX31](https://www.hetzner.com/cloud)`
hosts.web01: init This machine is intended to host web applications. Initially [Lemmy](https://join-lemmy.org/), but perhaps more down the line. The initial PR only deals with setting up the machine and required infra like DNS, not setting up Lemmy itself which will be a follow-up. 2023-07-04 16:55:32 +12:00			`- CPU: 2 vCPUs on Intel Xeon`
			`- RAM: 8GB`
			`- Drives: 80GB SSD`

web02: init 2023-07-22 09:50:53 +10:00			### `web02`

			`- Provider: Gandi`
			`- Instance type: [V-R4](https://www.gandi.net/en-GB/cloud/vps)`
			`- CPU: 2 CPU`
			`- RAM: 4GB`
			`- Drives: 25GB`

HOSTS.md: add ssh config 2023-03-26 14:07:51 +10:00			`## SSH config:`

			`You will need to set your admin username if it doesn't match your local username.`

			```
			`Host *.nix-community.org`
			`User <youradminusername>`
			```

README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00			`## Deployment commands:`

			```console
deploy -> inv this is useful as a generic inv wrapper 2023-01-07 11:10:13 +10:00			`$ ./inv deploy`
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00			```

HOSTS.md: remove outdated deployment commands 2023-03-26 14:07:29 +10:00			`If you want to reboot a machine, use the following command:`
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00
			```console
			`$ inv deploy --hosts build02 reboot --hosts build02`
			```

			`## Install/Fix system from Hetzner recovery mode`

			`1. Copy your ssh key to the recovery system so that the kexec image can re-use it.`

format tree 2023-03-26 14:02:59 +10:00			```console
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00			`yourmachine> ssh-copy-id root@build0X.nix-community.org`
			```

			`2. Download and boot into kexec-image:`

format tree 2023-03-26 14:02:59 +10:00			```console
README.md: hosts, deployment commands -> HOSTS.md 2023-01-02 15:37:28 +10:00			`$ curl -L https://github.com/nix-community/nixos-images/releases/download/nixos-unstable/nixos-kexec-installer-x86_64-linux.tar.gz \| tar -xzf- -C /root`
			`$ /root/kexec/run`
			```

			`### Debug VM`

			`You can start a vm from the rescue system in order to debug the boot:`

			```console
			`$ nix-shell -p qemu_kvm --run 'qemu-kvm -m 10G -hda /dev/sda -hdb /dev/sdb -curses -cpu host -enable-kvm'`
			```
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