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add pgAdmin service (#115)
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18
doc/pgadmin.md
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18
doc/pgadmin.md
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@ -0,0 +1,18 @@
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# pgAdmin
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[pgAdmin] is a feature rich Open Source administration and development platform for PostgreSQL.
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[pgAdmin]: https://www.pgadmin.org/
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## Getting Started
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```nix
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# In `perSystem.process-compose.<name>`
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{
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services.pgadmin."pgad1" = {
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enable = true;
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initialEmail = "email@gmail.com";
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initialPassword = "password";
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};
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}
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```
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@ -18,6 +18,7 @@ short-title: Services
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- [ ] Zookeeper
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- [x] [[grafana]]#
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- [X] [[prometheus]]#
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- [X] [[pgadmin]]#
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- [ ] ...
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[gh]: https://github.com/juspay/services-flake
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@ -15,5 +15,6 @@ in
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./zookeeper.nix
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./grafana.nix
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./prometheus.nix
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./pgadmin.nix
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];
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}
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171
nix/pgadmin.nix
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171
nix/pgadmin.nix
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# Based on https://github.com/NixOS/nixpkgs/blob/d53c2037394da6fe98decca417fc8fda64bf2443/nixos/modules/services/admin/pgadmin.nix
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{ pkgs, lib, name, config, ... }:
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let
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inherit (lib) types;
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_base = with types; [ int bool str ];
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base = with types; oneOf ([ (listOf (oneOf _base)) (attrsOf (oneOf _base)) ] ++ _base);
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formatAttrset = attr:
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"{${lib.concatStringsSep "\n" (lib.mapAttrsToList (key: value: "${builtins.toJSON key}: ${formatPyValue value},") attr)}}";
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formatPyValue = value:
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if builtins.isString value then builtins.toJSON value
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else if value ? _expr then value._expr
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else if builtins.isInt value then toString value
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else if builtins.isBool value then (if value then "True" else "False")
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else if builtins.isAttrs value then (formatAttrset value)
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else if builtins.isList value then "[${lib.concatStringsSep "\n" (map (v: "${formatPyValue v},") value)}]"
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else throw "Unrecognized type";
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formatPy = attrs:
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lib.concatStringsSep "\n" (lib.mapAttrsToList (key: value: "${key} = ${formatPyValue value}") attrs);
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pyType = with types; attrsOf (oneOf [ (attrsOf base) (listOf base) base ]);
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in
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{
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options = {
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enable = lib.mkEnableOption name;
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package = lib.mkPackageOption pkgs "pgadmin4" { };
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host = lib.mkOption {
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description = lib.mdDoc "Host for pgadmin4 to run on";
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type = types.str;
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default = "localhost";
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};
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port = lib.mkOption {
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description = lib.mdDoc "Port for pgadmin4 to run on";
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type = types.port;
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default = 5050;
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};
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initialEmail = lib.mkOption {
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description = "Initial email for the pgAdmin account";
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type = types.str;
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};
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initialPassword = lib.mkOption {
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description = "Initial password for the pgAdmin account";
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type = types.str;
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};
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minimumPasswordLength = lib.mkOption {
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description = "Minimum length of the password";
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type = types.int;
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default = 6;
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};
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dataDir = lib.mkOption {
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type = types.str;
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default = "./data/${name}";
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description = "The pgadmin4 data directory";
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};
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extraDefaultConfig = lib.mkOption {
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type = pyType;
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internal = true;
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readOnly = true;
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default = {
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DATA_DIR = {
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_expr = "os.getenv('PGADMIN_DATADIR')";
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};
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DEFAULT_SERVER = config.host;
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DEFAULT_SERVER_PORT = config.port;
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PASSWORD_LENGTH_MIN = config.minimumPasswordLength;
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SERVER_MODE = true;
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UPGRADE_CHECK_ENABLED = false;
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};
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};
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extraConfig = lib.mkOption {
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type = pyType;
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default = { };
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description = "Additional config for pgadmin4";
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};
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outputs.settings = lib.mkOption {
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type = types.deferredModule;
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internal = true;
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readOnly = true;
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default = {
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processes =
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let
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pgadminConfig = pkgs.writeTextDir "config_local.py" (
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"import os\n" + (formatPy
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(lib.recursiveUpdate config.extraDefaultConfig config.extraConfig))
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);
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in
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{
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"${name}-init" =
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let
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setupScript = pkgs.writeShellApplication {
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name = "setup-pgadmin";
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runtimeInputs = [ config.package ];
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text = ''
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export PYTHONPATH="${pgadminConfig}"
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PGADMIN_DATADIR="$(readlink -m ${config.dataDir})"
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mkdir -p "$PGADMIN_DATADIR"
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export PGADMIN_DATADIR
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PGADMIN_SETUP_EMAIL=${lib.escapeShellArg config.initialEmail}
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export PGADMIN_SETUP_EMAIL
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PGADMIN_SETUP_PASSWORD=${lib.escapeShellArg config.initialPassword}
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export PGADMIN_SETUP_PASSWORD
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if [ -f ${config.package}/bin/.pgadmin4-setup-wrapped ]; then
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# pgadmin-7.5 has .pgadmin4-setup-wrapped
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${config.package}/bin/.pgadmin4-setup-wrapped setup
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else
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# pgadmin-8.2 has .pgadmin4-cli-wrapped
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${config.package}/bin/.pgadmin4-cli-wrapped setup
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fi
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'';
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};
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in
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{
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command = setupScript;
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namespace = name;
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};
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"${name}" =
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let
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startScript = pkgs.writeShellApplication {
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name = "start-pgadmin";
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runtimeInputs = [ config.package ];
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text = ''
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export PYTHONPATH="${pgadminConfig}"
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PGADMIN_DATADIR="$(readlink -m ${config.dataDir})"
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export PGADMIN_DATADIR
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PGADMIN_SETUP_EMAIL=${lib.escapeShellArg config.initialEmail}
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export PGADMIN_SETUP_EMAIL
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PGADMIN_SETUP_PASSWORD=${lib.escapeShellArg config.initialPassword}
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export PGADMIN_SETUP_PASSWORD
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${config.package}/bin/.pgadmin4-wrapped
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'';
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};
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in
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{
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command = startScript;
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readiness_probe = {
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http_get = {
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host = config.host;
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port = config.port;
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path = "/misc/ping";
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};
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initial_delay_seconds = 2;
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period_seconds = 10;
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timeout_seconds = 4;
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success_threshold = 1;
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failure_threshold = 5;
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};
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namespace = name;
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depends_on."${name}-init".condition = "process_completed_successfully";
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# https://github.com/F1bonacc1/process-compose#-auto-restart-if-not-healthy
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availability.restart = "on_failure";
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};
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};
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};
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};
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};
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}
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23
nix/pgadmin_test.nix
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23
nix/pgadmin_test.nix
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@ -0,0 +1,23 @@
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{ pkgs, config, ... }: {
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services.pgadmin."pgad1" = {
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enable = true;
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initialEmail = "email@gmail.com";
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initialPassword = "password";
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};
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settings.processes.test =
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let
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cfg = config.services.pgadmin."pgad1";
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in
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{
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command = pkgs.writeShellApplication {
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runtimeInputs = [ cfg.package pkgs.curl pkgs.gnugrep ];
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text = ''
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curl http://localhost:5050/misc/ping | grep "PING"
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'';
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name = "pgadmin-test";
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};
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depends_on."pgad1".condition = "process_healthy";
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};
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}
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inherit system;
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# Required for elastic search
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config.allowUnfree = true;
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overlays = [
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(final: prev: {
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# Because tests are failing on darwin: https://github.com/juspay/services-flake/pull/115#issuecomment-1970467684
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pgadmin4 = prev.pgadmin4.overrideAttrs (_: { doInstallCheck = false; });
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})
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];
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};
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process-compose =
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let
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"${inputs.services-flake}/nix/zookeeper_test.nix"
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"${inputs.services-flake}/nix/grafana_test.nix"
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"${inputs.services-flake}/nix/prometheus_test.nix"
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"${inputs.services-flake}/nix/pgadmin_test.nix"
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]);
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};
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};
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