bootstrap script

home/users/sam/default.nix

@@ -48,7 +48,6 @@
   };
 
   home.sessionPath = [
-    "$HOME/.scripts/"
   ];
 
   gtk.enable = true;

hosts/bootstrap/default.nix

@@ -78,6 +78,7 @@
     inherit(pkgs)
     wget
     curl
+    git
     rsync;
   };
 

hosts/common/core/default.nix

@@ -2,4 +2,5 @@
   imports = [
     ./sops.nix
   ];
+
 }

scripts/bootstrap.sh

@@ -0,0 +1,80 @@
+#!/usr/bin/env bash
+
+echo -e "
+Before using this tool, ensure that the host has been setup correctly.
+Boot the latest Nixos-minimal install ISO on the host and access the tty.
+
+Use 'ip a' to get the ip address, then 'sudo su' to change to root. Finally
+Run 'passwd' and set a temporary password (something simple like '1234') 
+for the root user.
+"
+
+read -p "Confirm host had been setup using the above steps...(yes|no): " confirm
+[ "$confirm" != "yes" ] && echo "Exiting" && exit 0
+
+cd ~
+read -p "Enter hostname: " hostname
+read -p "Enter username: " username
+read -p "Enter ip address: " ip
+
+KEY_DIR="$HOME/keys/$hostname/"
+mkdir -p $KEY_DIR
+
+echo "Creating ssh keys for new host. Will create in current directory: "$KEY_DIR
+KEY_NAME="ssh_ed25519_key_$hostname"
+
+KNOWN_HOSTS=$(grep "$ip" ~/.ssh/known_hosts)
+confirm_delete=""
+
+[ "$KNOWN_HOSTS" != "" ] && echo -e "Host found in: ~/.ssh/known_hosts\n\n$KNOWN_HOSTS\n" && read -p "Delete existing hosts from ~/.ssh/known_hosts? (yes|no) " confirm_delete
+[ "$confirm_delete" = "yes" ] && sed -i "/$ip/d" ~/.ssh/known_hosts 
+
+ssh-keygen -t ed25519 -f "$KEY_DIR/$KEY_NAME" -C "$hostname@$ip" -N ""
+[ $? != 0 ] && echo "Error generating ssh keys" && exit 1
+
+echo "Copying ssh key to target host:"
+# Rsync currently not available in Nixos. Use scp instead.
+#rsync -av "ssh_ed25519_key_$hostname"* "root@$ip:/etc/ssh/"
+scp -i "$KEY_DIR/ssh_ed25519_key_$hostname"* "root@$ip:/etc/ssh/"
+[ $? != 0 ] && echo "Error copying keys to target host" && exit 1
+
+echo "Generating age key from ssh key"
+nix-shell -p ssh-to-age --run "cat $KEY_NAME.pub | ssh-to-age > $KEY_DIR/age_key_$hostname"
+[ $? != 0 ] && echo "Error generating age key" && exit 1
+
+AGE_KEY=$(cat "$KEY_DIR/age_key_$hostname")
+
+echo -e "Age key:\n$AGE_KEY\n"
+echo "This needs to be inserted into .sops.yaml file."
+
+# Install Nixos bootstrap
+cd "$HOME/nixos"
+SHELL=/bin/sh nix run github:nix-community/nixos-anywhere -- --flake .#bootstrap root@"$ip" -i "$KEY_DIR/ssh_ed25519_key_$hostname"
+[ $? != 0 ] && echo "Error installing Nixos" && exit 1
+
+echo "Deleting host from known_hosts"
+sed -i "/$ip/d" ~/.ssh/known_hosts
+
+echo -e "
+Complete!
+
+Remember to add the age key to .sops.yaml, like this:
+keys:
+- &hosts:
+    - &$hostname $AGE_KEY
+
+creation_rules:
+  - path_regex: secrets.yaml$
+    key_groups:
+      - age:
+        - *$hostname
+
+Then to update the keys for the secrets.yaml file, run:
+'sops --config .sops.yaml updatekeys secrets.yaml'
+"
+
+echo "Copying gitea private ssh key to host"
+rsync -av "$(readlink -n "$HOME/.ssh/openssh_key" )" "$username@$ip":~/.ssh/gitea
+ssh "$username@$ip" "nix-shell -p git --run \"GIT_SSH_COMMAND='ssh -i ~/.ssh/gitea -o IdentitiesOnly=yes' git clone git@git.bitlab21.com:sam/nixos.git\""
+ssh "$username@$ip" "nix-shell -p git --run \"GIT_SSH_COMMAND='ssh -i ~/.ssh/gitea -o IdentitiesOnly=yes' git clone git@git.bitlab21.com:sam/nix-secrets.git\""
+