chore(enos): Add scenario that uses docker containers for infrastructure (#3073)

Co-authored-by: Johan Brandhorst-Satzkorn <johan.brandhorst@gmail.com>

enos/modules/docker_postgres/main.tf

@@ -0,0 +1,75 @@
+# Copyright (c) HashiCorp, Inc.
+# SPDX-License-Identifier: MPL-2.0
+
+terraform {
+  required_providers {
+    docker = {
+      source  = "kreuzwerker/docker"
+      version = "3.0.1"
+    }
+  }
+}
+
+variable "network_name" {
+  description = "Name of Docker Network"
+  type        = string
+}
+variable "container_name" {
+  description = "Name of Docker Container"
+  type        = string
+  default     = "database"
+}
+variable "user" {
+  description = "Postgres Database username"
+  type        = string
+  default     = "boundary"
+}
+variable "password" {
+  description = "Postgres Database password"
+  type        = string
+  default     = "boundary"
+}
+variable "database_name" {
+  description = "Postgres Database name"
+  type        = string
+  default     = "boundarydb"
+}
+
+resource "docker_image" "postgres" {
+  name         = "postgres:latest"
+  keep_locally = true
+}
+
+resource "docker_container" "postgres" {
+  image   = docker_image.postgres.image_id
+  name    = var.container_name
+  command = ["postgres", "-c", "config_file=/etc/postgresql/postgresql.conf"]
+  env = [
+    "POSTGRES_DB=${var.database_name}",
+    "POSTGRES_USER=${var.user}",
+    "POSTGRES_PASSWORD=${var.password}",
+  ]
+  volumes {
+    host_path      = abspath(path.module)
+    container_path = "/etc/postgresql/"
+  }
+  ports {
+    internal = 5432
+    external = 5432
+  }
+  healthcheck {
+    test     = ["CMD", "pg_isready", "-U", "${var.user}", "-d", "${var.database_name}"]
+    interval = "3s"
+    timeout  = "5s"
+    retries  = 5
+  }
+  wait     = true
+  must_run = true
+  networks_advanced {
+    name = var.network_name
+  }
+}
+
+output "address" {
+  value = "postgres://${var.user}:${var.password}@${var.container_name}:5432/${var.database_name}?sslmode=disable"
+}

enos/modules/docker_postgres/postgresql.conf

@@ -0,0 +1,14 @@
+listen_addresses           = '*'
+max_connections            = 100
+work_mem                   = 50000kB
+shared_buffers             = 64MB
+log_destination            = 'stderr'
+deadlock_timeout           = 100
+log_min_messages           = info
+log_min_error_statement    = error
+log_error_verbosity        = verbose
+log_lock_waits             = true
+log_statement              = all
+log_duration               = on
+log_min_duration_statement = 0
+log_line_prefix            = '%m [%p] (%x) %i '