docker-keycloak-example/main.tf

resource "docker_image" "postgres" {
  name         = "postgres:9.6"
  keep_locally = true
}

resource "docker_image" "keycloak" {
  name         = "jboss/keycloak-postgres"
  keep_locally = true
}

resource "docker_container" "postgres" {
  name  = "postgres"
  image = "${docker_image.postgres.latest}"

  ports {
    internal = 5432
    external = 5432
  }

  env = [
    "POSTGRES_PASSWORD=${var.postgres_password}",
    "POSTGRES_USER=${var.postgres_user}",
    "PGDATA=/postgres_data",
  ]

  volumes {
    container_path = "/postgres_data"
    host_path      = "${path.module}/postgres_data"
  }
}

resource "docker_container" "keycloak" {
  name  = "keycloak"
  image = "${docker_image.keycloak.latest}"

  ports {
    internal = 8080
    external = 8080
  }

  links = [
    "${docker_container.postgres.name}",
  ]

  env = [
    "POSTGRES_DATABASE=local",
    "POSTGRES_PORT_5432_TCP_ADDR=${docker_container.postgres.name}",
    "KEYCLOAK_USER=local",
  ]
}

provider "postgresql" {
  host            = "172.18.5.3"
  port            = 5432
  database        = "postgres"
  username        = "${var.postgres_user}"
  password        = "${var.postgres_password}"
  sslmode         = "disable"
  connect_timeout = 15
}

resource "postgresql_database" "mydb" {
  name              = "mydb"
  connection_limit  = -1
  allow_connections = true
}