krops: enable evaluating nodes with non-native systems
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@ -238,6 +238,24 @@ You can also build Nix from source by following the instructions at https://nixo
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cp -r ../nix-bitcoin/examples/{nix-bitcoin-release.nix,configuration.nix,shell.nix,krops,.gitignore} .
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cp -r ../nix-bitcoin/examples/{nix-bitcoin-release.nix,configuration.nix,shell.nix,krops,.gitignore} .
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```
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```
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#### Optional: Specify the system of your node
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This enables evaluating your node config on a machine that has a different system platform
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than your node.\
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Examples: Deploying from macOS or deploying from a x86 desktop PC to a Raspberry Pi.
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```
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# Run this when your node has a 64-Bit x86 CPU (e.g., an Intel or AMD CPU)
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echo "x86_64-linux" > krops/system
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# Run this when your node has a 64-Bit ARM CPU (e.g., Raspberry Pi 4 B, Pine64)
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echo "aarch64-linux" > krops/system
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```
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Other available systems:
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- `i686-linux` (`x86`)
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- `armv7l-linux` (`ARMv7`)\
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This platform is untested and has no binary caches.
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[See here](https://nixos.wiki/wiki/NixOS_on_ARM) for details.
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## 4. Deploy with krops
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## 4. Deploy with krops
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1. Edit your ssh config
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1. Edit your ssh config
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@ -109,11 +109,25 @@ pkgs.stdenv.mkDerivation {
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$(nix-build --no-out-link "${cfgDir}/krops/deploy.nix")
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$(nix-build --no-out-link "${cfgDir}/krops/deploy.nix")
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)}
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)}
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eval-config() {
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eval-config() {(
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set -euo pipefail
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system=$(getNodeSystem)
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NIXOS_CONFIG="${cfgDir}/krops/krops-configuration.nix" \
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NIXOS_CONFIG="${cfgDir}/krops/krops-configuration.nix" \
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nix-instantiate --eval ${nixpkgs}/nixos -A system.outPath | tr -d '"'
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nix-instantiate --eval ${nixpkgs}/nixos $system -A system.outPath | tr -d '"'
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echo
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echo
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}
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)}
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getNodeSystem() {
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if [[ -e '${cfgDir}/krops/system' ]]; then
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echo -n "--argstr system "; cat '${cfgDir}/krops/system'
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elif [[ $OSTYPE == darwin* ]]; then
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# On macOS, `builtins.currentSystem` (`*-darwin`) can never equal
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# the node system (`*-linux`), so we can always provide a helpful error message:
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>&2 echo "Error, node system not set. See here how to fix this:"
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>&2 echo "https://github.com/fort-nix/nix-bitcoin/blob/master/docs/install.md#optional-specify-the-system-of-your-node"
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return 1
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fi
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};
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pidClosure() {
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pidClosure() {
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echo "$1"
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echo "$1"
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