feat: add terraform modules for all charms

.gitignore

@@ -24,3 +24,9 @@ external
 .pytest_cache
 requirements.txt
 dev-requirements.txt
+
+# Managed by Terraform
+
+.terraform
+.terraform.lock.hcl
+*.tfstate*

charms/cephfs-server-proxy/terraform/README.md

@@ -0,0 +1,50 @@
+# Terraform module for cephfs-server-proxy
+
+This is a Terraform module facilitating the deployment of the cephfs-server-proxy charm using
+the [Juju Terraform provider](https://github.com/juju/terraform-provider-juju).
+For more information, refer to the
+[documentation](https://registry.terraform.io/providers/juju/juju/latest/docs)
+for the Juju Terraform provider.
+
+## Requirements
+
+This module requires a Juju model to be available. Refer to the [usage](#usage)
+section for more details.
+
+## API
+
+### Inputs
+
+This module offers the following configurable units:
+
+| Name          | Type        | Description                                              | Default             | Required |
+|---------------|-------------|----------------------------------------------------------|---------------------|:--------:|
+| `app_name`    | string      | Application name                                         | cephfs-server-proxy |          |
+| `base`        | string      | Base version to use for deployed machine                 | [email protected]        |          |
+| `channel`     | string      | Channel that charm is deployed from                      | latest/edge         |          |
+| `config`      | map(string) | Map of charm configuration options to pass at deployment | {}                  |          |
+| `constraints` | string      | Constraints for the charm deployment                     | "arch=amd64"        |          |
+| `model_name`  | string      | Name of the model to deploy the charm to                 |                     |    Y     |
+| `revision`    | number      | Revision number of charm to deploy                       | null                |          |
+| `units`       | number      | Number of units to deploy                                | 1                   |          |
+
+### Outputs
+
+After applying, the module exports the following outputs:
+
+| Name       | Description                 |
+|------------|-----------------------------|
+| `app_name` | Application name            |
+| `provides` | Map of `provides` endpoints |
+
+## Usage
+
+Users should ensure that Terraform is aware of the Juju model dependency of the
+charm module.
+
+To deploy this module with its required dependency, you can run
+the following command:
+
+```shell
+terraform apply -var="model_name=<MODEL_NAME>" -auto-approve
+```

charms/cephfs-server-proxy/terraform/main.tf

@@ -0,0 +1,29 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+resource "juju_application" "cephfs-server-proxy" {
+  name  = var.app_name
+  model = var.model_name
+
+  charm {
+    name     = "cephfs-server-proxy"
+    base     = var.base
+    channel  = var.channel
+    revision = var.revision
+  }
+
+  config      = var.config
+  constraints = var.constraints
+  units       = var.units
+}

charms/cephfs-server-proxy/terraform/outputs.tf

@@ -0,0 +1,23 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+output "app_name" {
+  value = juju_application.cephfs-server-proxy.name
+}
+
+output "provides" {
+  value = {
+    filesystem = "filesystem"
+  }
+}

charms/cephfs-server-proxy/terraform/variables.tf

@@ -0,0 +1,61 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+variable "app_name" {
+  description = "Application name"
+  type        = string
+  default     = "cephfs-server-proxy"
+}
+
+variable "base" {
+  description = "Charm base"
+  type        = string
+  default     = "[email protected]"
+}
+
+variable "channel" {
+  description = "Charm channel"
+  type        = string
+  default     = "latest/edge"
+}
+
+variable "config" {
+  description = "Charm configuration"
+  type        = map(string)
+  default     = {}
+}
+
+variable "constraints" {
+  description = "Deployment constraints"
+  type        = string
+  default     = "arch=amd64"
+}
+
+variable "model_name" {
+  description = "Model name"
+  type        = string
+}
+
+variable "revision" {
+  description = "Charm revision"
+  type        = number
+  nullable    = true
+  default     = null
+}
+
+variable "units" {
+  description = "Number of units"
+  type        = number
+  default     = 1
+}

charms/cephfs-server-proxy/terraform/versions.tf

@@ -0,0 +1,22 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+terraform {
+  required_providers {
+    juju = {
+      source  = "juju/juju"
+      version = ">= 0.14.0"
+    }
+  }
+}

charms/filesystem-client/terraform/README.md

@@ -0,0 +1,49 @@
+# Terraform module for filesystem-client
+
+This is a Terraform module facilitating the deployment of the filesystem-client charm using
+the [Juju Terraform provider](https://github.com/juju/terraform-provider-juju).
+For more information, refer to the
+[documentation](https://registry.terraform.io/providers/juju/juju/latest/docs)
+for the Juju Terraform provider.
+
+## Requirements
+
+This module requires a Juju model to be available. Refer to the [usage](#usage)
+section for more details.
+
+## API
+
+### Inputs
+
+This module offers the following configurable units:
+
+| Name          | Type        | Description                                              | Default           | Required |
+|---------------|-------------|----------------------------------------------------------|-------------------|:--------:|
+| `app_name`    | string      | Application name                                         | filesystem-client |          |
+| `base`        | string      | Base version to use for deployed machine                 | [email protected]      |          |
+| `channel`     | string      | Channel that charm is deployed from                      | latest/edge       |          |
+| `config`      | map(string) | Map of charm configuration options to pass at deployment | {}                |          |
+| `constraints` | string      | Constraints for the charm deployment                     | "arch=amd64"      |          |
+| `model_name`  | string      | Name of the model to deploy the charm to                 |                   |    Y     |
+| `revision`    | number      | Revision number of charm to deploy                       | null              |          |
+
+### Outputs
+
+After applying, the module exports the following outputs:
+
+| Name       | Description                 |
+|------------|-----------------------------|
+| `app_name` | Application name            |
+| `requires` | Map of `requires` endpoints |
+
+## Usage
+
+Users should ensure that Terraform is aware of the Juju model dependency of the
+charm module.
+
+To deploy this module with its required dependency, you can run
+the following command:
+
+```shell
+terraform apply -var="model_name=<MODEL_NAME>" -auto-approve
+```

charms/filesystem-client/terraform/main.tf

@@ -0,0 +1,29 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+resource "juju_application" "filesystem-client" {
+  name  = var.app_name
+  model = var.model_name
+
+  charm {
+    name     = "filesystem-client"
+    base     = var.base
+    channel  = var.channel
+    revision = var.revision
+  }
+
+  config      = var.config
+  constraints = var.constraints
+  units       = 0
+}

charms/filesystem-client/terraform/outputs.tf

@@ -0,0 +1,24 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+output "app_name" {
+  value = juju_application.filesystem-client.name
+}
+
+output "requires" {
+  value = {
+    filesystem = "filesystem"
+    juju-info  = "juju-info"
+  }
+}

charms/filesystem-client/terraform/variables.tf

@@ -0,0 +1,55 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+variable "app_name" {
+  description = "Application name"
+  type        = string
+  default     = "filesystem-client"
+}
+
+variable "base" {
+  description = "Charm base"
+  type        = string
+  default     = "[email protected]"
+}
+
+variable "channel" {
+  description = "Charm channel"
+  type        = string
+  default     = "latest/edge"
+}
+
+variable "config" {
+  description = "Charm configuration"
+  type        = map(string)
+  default     = {}
+}
+
+variable "constraints" {
+  description = "Deployment constraints"
+  type        = string
+  default     = "arch=amd64"
+}
+
+variable "model_name" {
+  description = "Model name"
+  type        = string
+}
+
+variable "revision" {
+  description = "Charm revision"
+  type        = number
+  nullable    = true
+  default     = null
+}

charms/filesystem-client/terraform/versions.tf

@@ -0,0 +1,22 @@
+# Copyright 2025 Canonical Ltd.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+terraform {
+  required_providers {
+    juju = {
+      source  = "juju/juju"
+      version = ">= 0.14.0"
+    }
+  }
+}