138 lines
3.1 KiB
Nix
138 lines
3.1 KiB
Nix
{pkgs, config, ...}:
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let
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inherit (pkgs.lib) mkOption mkIf singleton;
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cfg = config.services.postgresql;
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postgresql = pkgs.postgresql;
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startDependency = if config.services.gw6c.enable then
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"gw6c" else "network-interfaces";
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run = "${pkgs.su}/bin/su -s ${pkgs.stdenv.shell} postgres";
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flags = if cfg.enableTCPIP then ["-i"] else [];
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in
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{
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###### interface
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options = {
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services.postgresql = {
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enable = mkOption {
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default = false;
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description = ''
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Whether to run PostgreSQL.
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'';
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};
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port = mkOption {
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default = "5432";
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description = ''
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Port for PostgreSQL.
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'';
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};
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logDir = mkOption {
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default = "/var/log/postgresql";
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description = ''
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Log directory for PostgreSQL.
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'';
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};
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dataDir = mkOption {
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default = "/var/db/postgresql";
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description = ''
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Data directory for PostgreSQL.
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'';
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};
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subServices = mkOption {
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default = [];
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description = ''
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Subservices list. As it is already implememnted,
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here is an interface...
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'';
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};
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authentication = mkOption {
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default = ''
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# Generated file; do not edit!
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local all all ident sameuser
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host all all 127.0.0.1/32 md5
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host all all ::1/128 md5
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'';
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description = ''
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Hosts (except localhost), who you allow to connect.
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'';
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};
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allowedHosts = mkOption {
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default = [];
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description = ''
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Hosts (except localhost), who you allow to connect.
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'';
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};
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authMethod = mkOption {
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default = " ident sameuser ";
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description = ''
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How to authorize users.
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Note: ident needs absolute trust to all allowed client hosts.
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'';
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};
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enableTCPIP = mkOption {
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default = false;
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description = ''
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Whether to run PostgreSQL with -i flag to enable TCP/IP connections.
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'';
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};
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};
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};
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###### implementation
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config = mkIf config.services.postgresql.enable {
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users.extraUsers = singleton
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{ name = "postgres";
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description = "PostgreSQL server user";
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};
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users.extraGroups = singleton
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{ name = "postgres"; };
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environment.systemPackages = [postgresql];
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jobs.postgresql =
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{ description = "PostgreSQL server";
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startOn = "${startDependency}/started";
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stopOn = "shutdown";
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preStart =
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''
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if ! test -e ${cfg.dataDir}; then
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mkdir -m 0700 -p ${cfg.dataDir}
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chown -R postgres ${cfg.dataDir}
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${run} -c '${postgresql}/bin/initdb -D ${cfg.dataDir} -U root'
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fi
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cp -f ${pkgs.writeText "pg_hba.conf" cfg.authentication} ${cfg.dataDir}/pg_hba.conf
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'';
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exec = "${run} -c '${postgresql}/bin/postgres -D ${cfg.dataDir} ${toString flags}'";
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};
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};
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}
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