88 lines
2.8 KiB
Nix
88 lines
2.8 KiB
Nix
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{ cluster, config, lib, pkgs, ... }:
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let
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inherit (cluster.config.services.patroni) secrets;
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patroni = cluster.config.links.patroni-pg-access;
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cfg = cluster.config.patroni;
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writeQueryFile = pkgs.writeText "patroni-query.sql";
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psqlRunFile = file: ''
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export PGPASSWORD="$(< ${secrets.PATRONI_SUPERUSER_PASSWORD.path})"
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while ! ${config.services.patroni.postgresqlPackage}/bin/psql 'host=${patroni.ipv4} port=${patroni.portStr} dbname=postgres user=postgres' --tuples-only --csv --file="${file}"; do
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sleep 3
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done
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'';
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psql = query: psqlRunFile (writeQueryFile query);
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psqlSecret = getSecret: queryTemplate: let
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queryTemplateFile = writeQueryFile queryTemplate;
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in ''
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umask 77
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secretFile="$(mktemp -ut patroniSecret.XXXXXXXXXXXXXXXX)"
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queryFile="$(mktemp -ut patroniQuery.XXXXXXXXXXXXXXXX)"
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trap "rm -f $secretFile $queryFile" EXIT
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${getSecret} > "$secretFile"
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cp --no-preserve=mode ${queryTemplateFile} "$queryFile"
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${pkgs.replace-secret}/bin/replace-secret '@SECRET@' "$secretFile" "$queryFile"
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${psqlRunFile "$queryFile"}
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'';
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genPassword = pkgs.writeShellScript "patroni-generate-user-password" ''
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umask 77
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base64 -w0 /dev/urandom | tr -d /+ | head -c256 | tee "/run/keys/locksmith-provider-patroni-$1"
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'';
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in
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{
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services.incandescence.providers.patroni = lib.mkIf config.services.haproxy.enable {
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locksmith = true;
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wantedBy = [ "patroni.service" "multi-user.target" ];
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partOf = [ "patroni.service" ];
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wants = [ "postgresql.service" ];
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after = [ "postgresql.service" ];
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formulae = {
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user = {
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destroyAfterDays = 0;
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create = user: psqlSecret "${genPassword} ${user}" ''
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CREATE USER ${user} PASSWORD '@SECRET@';
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'';
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destroy = psqlSecret "printenv OBJECT" ''
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DROP USER @SECRET@;
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'';
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};
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database = {
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destroyAfterDays = 30;
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deps = [ "user" ];
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create = db: psql ''
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CREATE DATABASE ${db} OWNER ${cfg.databases.${db}.owner};
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'';
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destroy = psqlSecret "printenv OBJECT" ''
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DROP DATABASE @SECRET@;
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'';
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};
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};
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};
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services.locksmith.providers.patroni = lib.mkIf config.services.haproxy.enable {
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secrets = lib.mapAttrs (user: userConfig: {
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command = {
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envFile = ''
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echo "PGPASSWORD=$(cat /run/keys/locksmith-provider-patroni-${user})"
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rm -f /run/keys/locksmith-provider-patroni-${user}
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'';
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pgpass = ''
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echo "*:*:*:${user}:$(cat /run/keys/locksmith-provider-patroni-${user})"
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rm -f /run/keys/locksmith-provider-patroni-${user}
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'';
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}.${userConfig.locksmith.format};
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checkUpdate = "test -e /run/keys/locksmith-provider-patroni-${user}";
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inherit (userConfig.locksmith) nodes;
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}) cfg.users;
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};
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}
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