Postgres docker configuration
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2f0ddf8375
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@ -1,71 +1,7 @@
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{ pkgs, lib, inputs, config, ... }:
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let
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admin_dbPasswordFile = lib.optionalString (lib.hasAttr "sops-nix" inputs) config.sops.secrets."software/postgres/admin_db/password".path;
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in
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{
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sops.secrets = {
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"software/postgres/admin_db/password" = { };
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};
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virtualisation.arion = {
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backend = "docker";
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projects = {
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"db".settings.services."db".service = {
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restart = "unless-stopped";
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build.context = "/nix/store";
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build.dockerfile = builtins.baseNameOf "${pkgs.writeScript "pgDockerfile" ''
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FROM postgres:16
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# install packages
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends \
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postgresql-16-postgis \
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jq \
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&& rm -rf /var/lib/apt/lists/*
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''}";
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environment = {
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POSTGRES_PASSWORD_FILE = admin_dbPasswordFile;
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POSTGRES_USER = "admin";
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POSTGRES_DB = "admin_db";
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PGDATA = "/var/lib/postgresql/data/pgdata";
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POSTGRES_MULTIPLE_DATABASES = ''
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[
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{
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"osm": {
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"user": "gis",
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"extensions": [
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"hstore",
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"postgis"
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]
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},
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"bitcoin": {
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"user": "satoshi",
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"extensions": []
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},
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"btc_models": {
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"user": "dbt",
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"extensions": []
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},
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"dev_btc_models": {
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"user": "dbt",
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"extensions": []
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}
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"test": {
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"user": "test",
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"extensions": [hstore]
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}
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}
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]
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'';
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};
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ports = [ "5432:5432" ];
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volumes = [
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"/mnt/postgres:/var/lib/postgresql/data"
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# Need to mount secret file
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"${admin_dbPasswordFile}:${admin_dbPasswordFile}"
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# PG init script to parse json specified in POSTGRES_MULTIPLE_DATABASES
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# creates databases, users and installs extensions for each database.
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"${pkgs.writeScript "init.sh" ''
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initScript = pkgs.writeText "init.sh" ''
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#!/bin/bash
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function create_user_and_database() {
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local database=$1
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@ -100,7 +36,105 @@ in
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create_user_and_database "$db_name" "$user" "$extensions"
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done
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fi
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''}:/docker-entrypoint-initdb.d/init.sh"
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'';
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pg_hbaConfig = pkgs.writeText "pg_hba.conf" ''
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none
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'';
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pgsqlConfig = pkgs.writeText "postgresql.conf" ''
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listen_addresses = '*'
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port = 5432
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max_connections = 100
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shared_buffers = 24GB
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work_mem = 1GB
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maintenance_work_mem = 10GB
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autovacuum_work_mem = 2GB
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dynamic_shared_memory_type = posix
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wal_level = minimal
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checkpoint_timeout = 60min
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checkpoint_completion_target = 0.9
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max_wal_size = 10GB
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min_wal_size = 80MB
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max_wal_senders = 0
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random_page_cost = 1.0
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effective_cache_size = 25GB
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jit = off
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log_line_prefix = '%m [%p] %q%u@%d '
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log_timezone = 'Etc/UTC'
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cluster_name = 'postgres-docker'
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datestyle = 'iso, dmy'
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timezone = 'Etc/UTC'
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default_text_search_config = 'pg_catalog.english'
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'';
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in
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{
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sops.secrets = {
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"software/postgres/admin_db/password" = { };
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};
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virtualisation.arion = {
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backend = "docker";
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projects = {
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"db".settings.services."db".service = {
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restart = "unless-stopped";
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build.context = "/nix/store";
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build.dockerfile = builtins.baseNameOf "${pkgs.writeText "pgDockerfile" ''
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FROM postgres:16
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# install packages
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RUN apt-get update \
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&& apt-get install -y --no-install-recommends \
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postgresql-16-postgis \
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jq \
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&& rm -rf /var/lib/apt/lists/*
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''}";
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command = [ "postgres" "-c" "config_file=/etc/postgresql/postgresql.conf" ];
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environment = {
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POSTGRES_PASSWORD_FILE = admin_dbPasswordFile;
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POSTGRES_USER = "admin";
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POSTGRES_DB = "admin_db";
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PGDATA = "/var/lib/postgresql/data/pgdata";
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POSTGRES_MULTIPLE_DATABASES = ''
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[
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{
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"osm": {
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"user": "gis",
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"extensions": [
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"hstore",
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"postgis"
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]
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},
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"bitcoin": {
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"user": "satoshi",
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"extensions": []
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},
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"btc_models": {
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"user": "dbt",
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"extensions": []
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},
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"dev_btc_models": {
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"user": "dbt",
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"extensions": []
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}
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}
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]
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'';
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};
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ports = [ "5432:5432" ];
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volumes = [
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# Mount pgdata to external zfs volume
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"/mnt/postgres:/var/lib/postgresql/data"
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# Mount config files
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# "${pg_hbaConfig}:/var/lib/postgres/data/pgdata/pg_hba.conf"
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"${pgsqlConfig}:/etc/postgresql/postgresql.conf"
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# Need to mount secret file
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"${admin_dbPasswordFile}:${admin_dbPasswordFile}"
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# PG init script to parse json specified in POSTGRES_MULTIPLE_DATABASES
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# creates databases, users and installs extensions for each database.
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"${initScript}:/docker-entrypoint-initdb.d/init.sh"
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];
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};
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};
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