93 lines
3.7 KiB
Bash
Executable File
93 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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echo -e "
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Before using this tool, ensure that the host has been setup correctly.
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Boot the latest Nixos-minimal install ISO on the host and access the tty.
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Use 'ip a' to get the ip address, then 'sudo su' to change to root. Finally Run
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'passwd' and set a temporary password for the root user.
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Also, ensure secrets for the new host and users have been set in secrets.yaml
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"
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read -p "Confirm host had been setup using the above steps...(yes|no): " confirm
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[ "$confirm" != "yes" ] && echo "Exiting" && exit 0
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read -p "Enter hostname of target: " hostname
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read -p "Enter IP of target: " ip
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read -p "Enter config to install on target: " config
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read -p "Enter username (if none, use 'root'): " username
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read -p "Using impermanence? (yes|no): " impermanence
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[ "$impermanence" = "yes" ] && persist="/persist"
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# Delete key in known hosts if exists
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sed -i "/$ip/d" ~/.ssh/known_hosts
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# Authorise source public key
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echo "Copying pubkey to target host"
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ssh-copy-id -i "$(readlink -f "$HOME/.ssh/id_ed25519.pub")" "root@$ip"
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# Create temp directory for ssh and luks keys to be copied to host:
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temp=$(mktemp -d)
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touch /tmp/luks_secret.key
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# Function to cleanup temporary directory on exit
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cleanup() {
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rm -rf "$temp" /tmp/luks_secret.key
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}
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trap cleanup EXIT
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# Create the directory for target host keys
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install -d -m755 "$temp$persist/etc/ssh"
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# Extract ssh keys from secrets
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echo "Extracting ssh keys"
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ssh_private_key=$(nix-shell -p sops --run "SOPS_AGE_KEY_FILE=~/.config/sops/age/keys.txt sops -d --extract '[""\"ssh_keys""\"][""\"$hostname""\"][""\"id_ed25519""\"]' ~/.local/share/src/nix-secrets/secrets.yaml")
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echo "$ssh_private_key" > $temp$persist/etc/ssh/ssh_host_ed25519_key
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ssh_pub_key=$(nix-shell -p sops --run "SOPS_AGE_KEY_FILE=~/.config/sops/age/keys.txt sops -d --extract '[""\"ssh_keys""\"][""\"$hostname""\"][""\"id_ed25519.pub""\"]' ~/.local/share/src/nix-secrets/secrets.yaml")
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echo "$ssh_pub_key" > $temp$persist/etc/ssh/ssh_host_ed25519_key.pub
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# # Extract luks key from secrets
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# luks_secret=$(nix-shell -p sops --run "SOPS_AGE_KEY_FILE=~/.config/sops/age/keys.txt sops -d --extract '[""\"luks_passphrase""\"][""\"$hostname""\"]' ~/.local/share/src/nix-secrets/secrets.yaml")
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# echo "$luks_secret" > /tmp/luks_secret.key
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# # Create ssh keys
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# echo "Creating '$hostname' ssh keys"
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# ssh-keygen -t ed25519 -f "$temp$persist/etc/ssh/ssh_host_ed25519_key" -C root@"$hostname" -N ""
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# # Generate age key from target host and user public ssh key
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# echo "Generating age key from target host and user ssh key"
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# HOST_AGE_KEY=$(nix-shell -p ssh-to-age --run "cat $temp$persist/etc/ssh/ssh_host_ed25519_key.pub | ssh-to-age")
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# echo -e "Host age key:\n$HOST_AGE_KEY\n"
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# # Update .sops.yaml with new age key:
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# SOPS_FILE="$HOME/.local/share/src/nix-secrets/.sops.yaml"
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# sed -i "{
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# # Remove any * and & entries for this host
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# /[*&]$hostname/ d;
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# # Inject a new age: entry
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# # n matches the first line following age: and p prints it, then we transform it while reusing the spacing
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# /age:/{n; p; s/\(.*- \*\).*/\1$hostname/};
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# # Inject a new hosts: entry
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# /&hosts:/{n; p; s/\(.*- &\).*/\1$hostname $HOST_AGE_KEY/}
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# }" "$SOPS_FILE"
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# # Commit and push changes to sops file
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# just update-sops-secrets && just update-flake-secrets && just update-flake
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# Copy current nix config over to target
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echo "copying current nix config to host"
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cp -pr . "$temp$persist/etc/nixos"
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# Install Nixos to target
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SHELL=/bin/sh nix run github:nix-community/nixos-anywhere/1.6.0 -- --extra-files "$temp" --flake .#"$config" root@"$ip" -i "$HOME/.ssh/id_ed25519"
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echo $?
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## Delete keys from local known_hosts
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echo "Deleting host from known_hosts"
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sed -i "/$ip/d" ~/.ssh/known_hosts
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echo -e "###\nSuccessfully installed Nixos on the target host!\n###"
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exit 0
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