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docker-ent
Author | SHA1 | Date |
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Sam | 7367f73216 |
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@ -1,71 +1,52 @@
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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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customEntryPointScript = pkgs.writeScript "custom-entrypoint.sh" ''
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#!/usr/bin/env bash
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## copied from: https://github.com/docker-library/postgres/pull/496#issue-358838955
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set -Eeo pipefail
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echo "🐘 custom-entry-point"
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# Example using the functions of the postgres entrypoint to customize startup to always run files in /always-initdb.d/
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source "$(which docker-entrypoint.sh)"
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docker_setup_env
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docker_create_db_directories
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# assumption: we are already running as the owner of PGDATA
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# This is needed if the container is started as `root`
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#if [ "$1" = 'postgres' ] && [ "$(id -u)" = '0' ]; then
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if [ "$(id -u)" = '0' ]; then
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exec gosu postgres "$BASH_SOURCE" "$@"
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fi
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if [ -z "$DATABASE_ALREADY_EXISTS" ]; then
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echo "🐘 db is missing"
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docker_verify_minimum_env
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docker_init_database_dir
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pg_setup_hba_conf
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# only required for '--auth[-local]=md5' on POSTGRES_INITDB_ARGS
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export PGPASSWORD="''${PGPASSWORD:-$POSTGRES_PASSWORD}"
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docker_temp_server_start "$@" -c max_locks_per_transaction=256
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docker_setup_db
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docker_process_init_files /docker-entrypoint-initdb.d/*
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docker_temp_server_stop
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else
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echo "🐘 db already exists"
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docker_temp_server_start "$@"
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docker_process_init_files /always-initdb.d/*
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docker_temp_server_stop
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fi
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echo "🐘 .. starting!"
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exec postgres "$@"
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'';
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};
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ports = [ "5432:5432" ];
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volumes = [
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"/mnt/postgres:/var/lib/postgresql/data"
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# Need to mount secret file
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"${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.writeScript "init.sh" ''
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#!/bin/bash
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function create_user_and_database() {
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local database=$1
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@ -100,7 +81,80 @@ in
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create_user_and_database "$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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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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RUN mkdir -p /scripts/ /always-initdb.d/
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COPY ${builtins.baseNameOf customEntryPointScript} /scripts/custom-entrypoint.sh
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RUN chmod -R a+x /scripts
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ENTRYPOINT /scripts/custom-entrypoint.sh
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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}:${admin_dbPasswordFile}"
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# PG init script to parse json specified in POSTGRES_MULTIPLE_DATABASES
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# creates databases, users and installs extensions for each database.
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"${initScript}:/always-initdb.d/init.sh"
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];
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};
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};
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