Move secrets to flakes

[perso/Immae/Config/Nix.git] / modules / secrets.nix

diff --git a/modules/secrets.nix b/modules/secrets.nix
deleted file mode 100644 (file)
index 86d276a..0000000
--- a/modules/secrets.nix
+++ /dev/null
@@ -1,113 +0,0 @@
-{ lib, pkgs, config, ... }:
-{
-  options.secrets = {
-    keys = lib.mkOption {
-      type = lib.types.listOf lib.types.unspecified;
-      default = [];
-      description = "Keys to upload to server";
-    };
-    gpgKeys = lib.mkOption {
-      type = lib.types.listOf lib.types.path;
-      default = [];
-      description = "GPG public keys files to encrypt to";
-    };
-    ageKeys = lib.mkOption {
-      type = lib.types.listOf lib.types.str;
-      default = [];
-      description = "AGE keys to encrypt to";
-    };
-    decryptKey = lib.mkOption {
-      type = lib.types.str;
-      default = "/etc/ssh/ssh_host_ed25519_key";
-      description = "ed25519 key used to decrypt with AGE";
-    };
-    location = lib.mkOption {
-      type = lib.types.path;
-      default = "/var/secrets";
-      description = "Location where to put the keys";
-    };
-    secretsVars = lib.mkOption {
-      type = lib.types.path;
-      default = "/run/keys/vars.yml";
-      description = "Location where the secrets variables are defined, to be used to fill the templates in secrets";
-    };
-    deleteSecretsVars = lib.mkOption {
-      type = lib.types.bool;
-      default = false;
-      description = "Delete secrets file after deployment";
-    };
-    # Read-only variables
-    fullPaths = lib.mkOption {
-      type = lib.types.attrsOf lib.types.path;
-      default = builtins.listToAttrs
-        (map (v: { name = v.dest; value = "${config.secrets.location}/${v.dest}"; }) config.secrets.keys);
-      readOnly = true;
-      description = "set of full paths to secrets";
-    };
-  };
-
-  config = let
-    location = config.secrets.location;
-    keys = config.secrets.keys;
-    empty = pkgs.runCommand "empty" { preferLocalBuild = true; } "mkdir -p $out && touch $out/done";
-    fpath = v: "secrets/${v.dest}${lib.optionalString (v.isTemplated or true) ".gucci.tpl"}";
-    dumpKey = v: ''
-        mkdir -p secrets/$(dirname ${v.dest})
-        echo -n ${lib.strings.escapeShellArg v.text} > ${fpath v}
-        cat >> mods <<EOF
-        ${v.user or "root"} ${v.group or "root"} ${v.permissions or "0600"} ${fpath v}
-        EOF
-        '';
-    secrets = pkgs.runCommand "secrets.tar.enc" {
-      buildInputs = [ pkgs.gnupg pkgs.sops ];
-      } ''
-      touch mods
-      tar --format=ustar --mtime='1970-01-01' -P --transform="s@${empty}@secrets@" -cf $out ${empty}/done
-      ${builtins.concatStringsSep "\n" (map dumpKey keys)}
-      cat mods | while read u g p k; do
-      tar --format=ustar --mtime='1970-01-01' --owner="$u" --group="$g" --mode="$p" --append -f $out "$k"
-      done
-      export HOME=$(pwd)
-      fingerprints=
-      for key in ${builtins.concatStringsSep " " config.secrets.gpgKeys}; do
-        gpg --import $key 2>/dev/null
-        fingerprints=$fingerprints,$(cat $key | gpg --with-colons --import-options show-only --import 2>/dev/null | grep ^fpr | cut -d: -f10 | head -n1)
-      done
-
-      sops --age ${builtins.concatStringsSep "," config.secrets.ageKeys} --pgp ''${fingerprints#,} --input-type binary -i -e $out 2>/dev/null
-      '';
-  in lib.mkIf (builtins.length keys > 0) {
-    system.activationScripts.secrets = {
-      deps = [ "users" "wrappers" ];
-      text = ''
-        install -m0750 -o root -g keys -d ${location}
-        TMP=$(${pkgs.coreutils}/bin/mktemp -d)
-        TMPWORK=$(${pkgs.coreutils}/bin/mktemp -d)
-        chmod go-rwx $TMPWORK
-        if [ -n "$TMP" -a -n "$TMPWORK" ]; then
-          install -m0750 -o root -g keys -d $TMP
-          ${pkgs.ssh-to-age}/bin/ssh-to-age -private-key -i ${config.secrets.decryptKey} -o $TMPWORK/keys.txt
-          SOPS_AGE_KEY_FILE=$TMPWORK/keys.txt ${pkgs.sops}/bin/sops -d ${secrets} | ${pkgs.gnutar}/bin/tar --strip-components 1 -C $TMP -x
-          if [ -f ${config.secrets.secretsVars} ]; then
-            SOPS_AGE_KEY_FILE=$TMPWORK/keys.txt ${pkgs.sops}/bin/sops -d ${config.secrets.secretsVars} > $TMPWORK/vars.yml
-          fi
-          if [ -f $TMPWORK/vars.yml ]; then
-            find $TMP -name "*.gucci.tpl" -exec \
-              /bin/sh -c 'f="{}"; ${pkgs.gucci}/bin/gucci -f '$TMPWORK'/vars.yml "$f" > "''${f%.gucci.tpl}"; touch --reference "$f" ''${f%.gucci.tpl} ; chmod --reference="$f" ''${f%.gucci.tpl} ; chown --reference="$f" ''${f%.gucci.tpl}' \;
-          fi
-          find $TMP -type d -exec chown root:keys {} \; -exec chmod o-rx {} \;
-          ${pkgs.rsync}/bin/rsync --exclude="*.gucci.tpl" -O -c -av --delete $TMP/ ${location}
-          rm -rf $TMP $TMPWORK ${lib.optionalString config.secrets.deleteSecretsVars config.secrets.secretsVars}
-        fi
-        '';
-    };
-
-    deployment.secrets."secret_vars.yml" = {
-      source = builtins.toString ../nixops/secrets/vars.yml;
-      destination = config.secrets.secretsVars;
-      owner.user = "root";
-      owner.group = "root";
-      permissions = "0400";
-     };
-  };
-}