feat: Add multiple tags

README.md

@@ -19,6 +19,7 @@ module "docker_image" {
 - [Simple](https://github.com/redevaerk/terraform-docker-image/tree/main/examples/simple) - This example will build and push Docker image with default settings.
 - [Build Image With Context](https://github.com/redevaerk/terraform-docker-image/tree/main/examples/build-image-with-context) - This example will build and push Docker image with a context in different folder.
 - [Azure Container Registry](https://github.com/redevaerk/terraform-docker-image/tree/main/examples/build-image-with-context) - This example will build and push Docker image to Azure Container Registry.
+- [Multiple Tags](https://github.com/redevaerk/terraform-docker-image/tree/main/examples/multiple-tags) - This example will build and push Docker image with multiple tags.
 
 <!-- BEGINNING OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
 ## Requirements
@@ -49,6 +50,7 @@ No modules.
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
+| <a name="input_add_latest_tag"></a> [add\_latest\_tag](#input\_add\_latest\_tag) | Add latest tag to the Image. If false, it's necessary to add at least one tag on 'variable.tags'. | `bool` | `true` | no |
 | <a name="input_context"></a> [context](#input\_context) | Value to specify the build context. Currently, only a PATH context is supported. | `string` | `null` | no |
 | <a name="input_dockerfile"></a> [dockerfile](#input\_dockerfile) | A directory containing your Dockerfile | `string` | `"Dockerfile"` | no |
 | <a name="input_dynamic_build"></a> [dynamic\_build](#input\_dynamic\_build) | If true, will force the docker\_image resource to be replaced. This can be used to rebuild an image when contents of source code folders change. | `bool` | `true` | no |
@@ -59,17 +61,19 @@ No modules.
 | <a name="input_dynamic_build_source_dir"></a> [dynamic\_build\_source\_dir](#input\_dynamic\_build\_source\_dir) | A directory containing your source code. This variable will be used in dynamic build when var.dynamic\_build\_attach\_source is true. | `string` | `"src"` | no |
 | <a name="input_force_remove"></a> [force\_remove](#input\_force\_remove) | If true, then the image is removed forcibly when the resource is destroyed. | `bool` | `false` | no |
 | <a name="input_keep_locally"></a> [keep\_locally](#input\_keep\_locally) | If true, then the Docker image won't be deleted on destroy operation. If this is false, it will delete the image from the docker local storage on destroy operation. | `bool` | `false` | no |
+| <a name="input_keep_remotely"></a> [keep\_remotely](#input\_keep\_remotely) | If true, then the Docker image won't be deleted on destroy operation. If this is false, it will delete the image from the docker registry on destroy operation. | `bool` | `false` | no |
 | <a name="input_labels"></a> [labels](#input\_labels) | A map of labels to add to the Image | `map(string)` | `{}` | no |
 | <a name="input_name"></a> [name](#input\_name) | A unique name for your Image | `string` | n/a | yes |
 | <a name="input_push"></a> [push](#input\_push) | If true, then the Image will be pushed to the registry | `bool` | `true` | no |
 | <a name="input_registry"></a> [registry](#input\_registry) | Registry Name to push the Image | `string` | `"registry-1.docker.io"` | no |
-| <a name="input_tag"></a> [tag](#input\_tag) | A tag for your Image | `string` | `"latest"` | no |
+| <a name="input_tags"></a> [tags](#input\_tags) | Optionally a tags to add to the Image | `list(string)` | `[]` | no |
 
 ## Outputs
 
 | Name | Description |
 |------|-------------|
-| <a name="output_image"></a> [image](#output\_image) | Name of the created docker image |
+| <a name="output_images"></a> [images](#output\_images) | List of all created docker images |
+| <a name="output_map_images"></a> [map\_images](#output\_map\_images) | Map per tag corresponding docker images |
 <!-- END OF PRE-COMMIT-TERRAFORM DOCS HOOK -->
 
 ## License

examples/multiple-tags/.dockerignore

@@ -0,0 +1 @@
+src/ignorefile.txt

examples/multiple-tags/Dockerfile

@@ -0,0 +1,2 @@
+FROM ubuntu:22.04
+COPY src /

examples/multiple-tags/main.tf

@@ -0,0 +1,14 @@
+provider "docker" {
+  host = "unix:///var/run/docker.sock"
+  registry_auth {
+    address     = "registry-1.docker.io"
+    config_file = pathexpand("~/.docker/config.json")
+  }
+}
+
+module "docker_image" {
+  source        = "../../"
+  name          = var.name
+  tags          = ["v1", "beta"]
+  keep_remotely = false
+}

examples/multiple-tags/outputs.tf

@@ -0,0 +1,9 @@
+output "images" {
+  description = "List of all created docker images"
+  value       = module.docker_image.images
+}
+
+output "map_images" {
+  description = "Map per tag corresponding docker images"
+  value       = module.docker_image.map_images
+}

examples/multiple-tags/src/demofile.txt

@@ -0,0 +1 @@
+Hello World

examples/multiple-tags/variables.tf

@@ -0,0 +1,4 @@
+variable "name" {
+  description = "A unique name for your Image"
+  type        = string
+}

examples/multiple-tags/versions.tf

@@ -0,0 +1,10 @@
+terraform {
+  required_version = ">= 1.0"
+
+  required_providers {
+    docker = {
+      source  = "kreuzwerker/docker"
+      version = ">=3.0.0"
+    }
+  }
+}

main.tf

@@ -1,5 +1,6 @@
 locals {
-  image_name = "${var.registry}/${var.name}:${var.tag}"
+  tags       = var.add_latest_tag && !contains(var.tags, "latest") ? compact(concat(["latest"], var.tags)) : compact(var.tags)
+  image_name = "${var.registry}/${var.name}"
   context    = coalesce(var.context, path.cwd)
   build_triggers_source = var.dynamic_build && var.dynamic_build_attach_source ? {
     source_dir = sha1(join("", [for f in fileset(local.context, "${var.dynamic_build_source_dir}/*") : filesha1("${local.context}/${f}")]))
@@ -20,20 +21,20 @@ locals {
 }
 
 resource "docker_registry_image" "this" {
-  count         = var.push ? 1 : 0
-  name          = docker_image.this.name
-  keep_remotely = true
+  for_each      = var.push ? toset(docker_image.this.build[*].tag[0]) : toset([])
+  name          = each.value
+  keep_remotely = var.keep_remotely
   triggers      = local.build_triggers
 }
 
 resource "docker_image" "this" {
-  name         = local.image_name
+  name         = "${local.image_name}:${local.tags[0]}"
   force_remove = var.force_remove
   keep_locally = var.keep_locally
   build {
     context    = local.context
     dockerfile = var.dockerfile
-    tag        = [local.image_name]
+    tag        = [for tag in local.tags : "${local.image_name}:${tag}"]
     labels     = var.labels
   }
   triggers = local.build_triggers

outputs.tf

@@ -1,4 +1,9 @@
-output "image" {
-  description = "Name of the created docker image"
-  value       = local.image_name
+output "images" {
+  description = "List of all created docker images"
+  value       = docker_image.this.build[*].tag[0]
+}
+
+output "map_images" {
+  description = "Map per tag corresponding docker images"
+  value       = { for tag in local.tags : tag => "${local.image_name}:${tag}" }
 }

variables.tf

@@ -12,10 +12,16 @@ variable "name" {
   type        = string
 }
 
-variable "tag" {
-  description = "A tag for your Image"
-  type        = string
-  default     = "latest"
+variable "add_latest_tag" {
+  description = "Add latest tag to the Image. If false, it's necessary to add at least one tag on 'variable.tags'."
+  type        = bool
+  default     = true
+}
+
+variable "tags" {
+  description = "Optionally a tags to add to the Image"
+  type        = list(string)
+  default     = []
 }
 
 variable "keep_locally" {
@@ -24,6 +30,12 @@ variable "keep_locally" {
   default     = false
 }
 
+variable "keep_remotely" {
+  description = "If true, then the Docker image won't be deleted on destroy operation. If this is false, it will delete the image from the docker registry on destroy operation."
+  type        = bool
+  default     = false
+}
+
 variable "force_remove" {
   description = " If true, then the image is removed forcibly when the resource is destroyed."
   type        = bool