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105 lines
4.3 KiB
Nix
105 lines
4.3 KiB
Nix
inputs:
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{
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options.nixos.services.postgresql = let inherit (inputs.lib) mkOption types; in mkOption
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{
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type = types.nullOr (types.submodule { options =
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{
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instances = mkOption
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{
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type = types.attrsOf (types.submodule (submoduleInputs: { options =
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{
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database = mkOption { type = types.nonEmptyStr; default = submoduleInputs.config._module.args.name; };
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user = mkOption { type = types.nonEmptyStr; default = submoduleInputs.config._module.args.name; };
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passwordFile = mkOption { type = types.nullOr types.nonEmptyStr; default = null; };
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initializeFlags = mkOption { type = types.attrsOf types.nonEmptyStr; default = {}; };
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};}));
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default = {};
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};
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};});
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default = null;
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};
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config =
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let
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inherit (inputs.config.nixos.services) postgresql;
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inherit (inputs.lib) mkAfter concatStringsSep mkIf;
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inherit (inputs.localLib) attrsToList;
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inherit (builtins) map listToAttrs filter;
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in mkIf (postgresql != null)
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{
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services =
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{
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postgresql =
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{
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enable = true;
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package = inputs.pkgs.postgresql_15;
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enableTCPIP = true;
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authentication = "host all all 0.0.0.0/0 md5";
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settings =
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{
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unix_socket_permissions = "0700";
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shared_buffers = "8192MB";
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work_mem = "512MB";
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autovacuum = "on";
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};
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# log_timezone = 'Asia/Shanghai'
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# datestyle = 'iso, mdy'
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# timezone = 'Asia/Shanghai'
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# lc_messages = 'en_US.utf8'
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# lc_monetary = 'en_US.utf8'
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# lc_numeric = 'en_US.utf8'
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# lc_time = 'en_US.utf8'
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# default_text_search_config = 'pg_catalog.english'
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# plperl.on_init = 'use utf8; use re; package utf8; require "utf8_heavy.pl";'
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# mv /path/to/dir /path/to/dir_old
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# mkdir /path/to/dir
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# chattr +C /path/to/dir
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# cp -a --reflink=never /path/to/dir_old/. /path/to/dir
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# rm -rf /path/to/dir_old
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ensureUsers = map (db: { name = db.value.user; }) (attrsToList postgresql.instances);
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};
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postgresqlBackup =
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{
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enable = true;
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pgdumpOptions = "-Fc";
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compression = "none";
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databases = map (db: db.value.database) (attrsToList postgresql.instances);
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};
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};
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systemd.services.postgresql.postStart = mkAfter (concatStringsSep "\n" (map
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(db:
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let
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passwordFile =
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if db.value.passwordFile or null != null then db.value.passwordFile
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else inputs.config.sops.secrets."postgresql/${db.value.user}".path;
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initializeFlag =
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if db.value.initializeFlags != {} then
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" WITH "
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+ (concatStringsSep " " (map
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(flag: ''${flag.name} = "${flag.value}"'')
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(attrsToList db.value.initializeFlags)))
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else "";
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in
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# create database if not exist
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"$PSQL -tAc \"SELECT 1 FROM pg_database WHERE datname = '${db.value.database}'\" | grep -q 1"
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+ " || $PSQL -tAc 'CREATE DATABASE \"${db.value.database}\"${initializeFlag}'"
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# set user password
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+ "\n"
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+ "$PSQL -tAc \"ALTER USER ${db.value.user} with encrypted password '$(cat ${passwordFile})'\""
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# set db owner
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+ "\n"
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+ "$PSQL -tAc \"select pg_catalog.pg_get_userbyid(d.datdba) FROM pg_catalog.pg_database d"
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+ " WHERE d.datname = '${db.value.database}' ORDER BY 1\""
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+ " | grep -E '^${db.value.user}$' -q"
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+ " || $PSQL -tAc \"ALTER DATABASE ${db.value.database} OWNER TO ${db.value.user}\"")
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(attrsToList postgresql.instances)));
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sops.secrets = listToAttrs (map
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(db: { name = "postgresql/${db.value.user}"; value.owner = inputs.config.users.users.postgres.name; })
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(filter (db: db.value.passwordFile == null) (attrsToList postgresql.instances)));
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};
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}
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# sops.secrets.drone-agent = {
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# owner = config.systemd.services.drone-agent.serviceConfig.User;
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# key = "drone";
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# };
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# pg_dump -h 127.0.0.1 -U synapse -Fc -f synaps.dump synapse
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# pg_restore -h 127.0.0.1 -U misskey -d misskey --data-only --jobs=4 misskey.dump |