docs: update repo info and add role readme (#14)

### Description
This PR updates `README.md` and adds `README.md` files for all roles

### Related Issue
Closes #12

### Testing Done
- [x] Verified docs match current state of repo and roles

### Checklist
- [x] My code follows the project's style guidelines.
- [x] I have performed a self-review of my own code.
- [x] I have updated the documentation (if necessary).

---------

Co-authored-by: Jordan Del Pilar <[email protected]>
Reviewed-on: #14

README.md

@@ -22,32 +22,42 @@ Below is the directory map for this repo.
 ├── host_vars
 │   ├── goldenrod.yaml
 │   └── new-bark.yaml
+├── infrastructure.code-workspace
 ├── inventory.yaml
 ├── README.md
 ├── roles
+│   ├── backup
+│   │   ├── files
+│   │   ├── handlers
+│   │   ├── tasks
+│   │   └── templates
 │   ├── common
 │   │   └── tasks
-│   │       └── main.yaml
 │   ├── dns_server
 │   │   ├── handlers
-│   │   │   └── main.yaml
 │   │   ├── tasks
-│   │   │   └── main.yaml
 │   │   └── templates
-│   │       └── adguard_quadlet.j2
 │   └── gitea_server
 │       ├── handlers
-│       │   └── main.yaml
 │       ├── tasks
-│       │   └── main.yaml
 │       └── templates
-│           ├── act_runner_quadlet.j2
-│           └── gitea_quadlet.j2
 └── site.yaml
 ````
 
+## Roles
+Below is a list of all roles in this project. 
+Each role has a separate `README.md` that goes in depth about that role and any required variables for that role.
+
+| Role Name | README file | Tags |
+|-----------|-------------|------|
+| Backup |[README.md](roles/backup/README.md)| common, backup|
+| Common |[README.md](roles/common/README.md)| common|
+| DNS Server |[README.md](roles/dns_server/README.md)| dns, core|
+| Gitea Server |[README.md](roles/gitea_server/README.md)| gitea, core|
+
 ## Prerequisites
 
+### Install Tools
 To run this project locally the following tools are required.
 All install commands assume you are running Ubuntu/Debian.
 
@@ -61,6 +71,24 @@ All install commands assume you are running Ubuntu/Debian.
     ```
 - SSH access to target nodes
 
+### Global Connection Variables
+This playbook relies globally on `ansible_user` and `ansible_become_pass` for host authentication and privilege escalation. While configured per-host within `host_vars` for this deployment, they can also be defined globally in `group_vars/all.yaml` if your environment uses shared credentials.
+
+> [!WARNING]
+> Any variable marked `# !SENSITIVE` **should not** be stored in plain text under any circumstance.
+
+```yaml
+# (required) The SSH user Ansible utilizes to connect to target nodes.
+# Must have sudo privileges. DO NOT set as root.
+# format: string
+ansible_user:
+
+# (required) The sudo password for the user defined above.
+# format: string
+# !SENSITIVE
+ansible_become_pass:
+```
+
 ## How to Run
 The ultimate goal of this project is a fully automated gitops workflow. 
 However, until that is fully running below are the instructions to run this project locally.
@@ -95,5 +123,6 @@ Below is a list of all services currently deployed by this project. This list wi
 
 Unless otherwise stated all services are run via rootless podman quadlets.
 
-- Internal DNS (dns_server) - AdguardHome for network wide adblocking and local DNS resoultion
+- Internal DNS (dns_server) - AdguardHome for network wide ad-blocking and local DNS resolution
 - Git Server and CI/CD runner (gitea_server) - Gitea alongside act runner for local git with repo mirroring and local private ci/cd runners
+- Automated Backup (rclone and restic) - Restic using rclone backend to handle automated backups for key directories

roles/backup/README.md

@@ -0,0 +1,105 @@
+# Role: Backup
+Installs and configures rclone and restic to handle daily backups
+Creates systemd services for both daily restic backups and weekly restic prune jobs, and creates systemd timers to automatically run them
+
+## Tags
+- backup
+- common
+
+## Required Variables
+Below is an annotated break down of the required variables and their structure for this role
+
+These blocks should be defined in the `host_vars` file for each host as all variables are unique to the specific host.
+
+> [!WARNING]
+> Any variable marked `# !SENSITIVE` **should not** be stored in plain text under any circumstance
+
+### Rclone Remote Info
+This info is used to create the rclone.conf file.
+
+All variables listed below are required for this role to run correctly
+```yaml
+# (required) This is a list of all rclone remotes to define in the rclone.conf
+# At least one remote is required, but you may have as many as you want
+rclone_remotes:
+    # (required) Name of the remote to add. Must be unique to the host
+    # format: string
+  - remote_name: server-gdrive
+
+    # (required) Client ID of google cloud project OAuth Client
+    # format: string
+    # !SENSITIVE
+    client_id: 
+
+    # (required) Client secret of google cloud project OAuth Client
+    # format: string
+    # !SENSITIVE
+    client_secret: 
+
+    # (required) Client auth token. This must be generated one time for each host
+    # format: json string
+    # !SENSITIVE
+    client_auth_token: 
+
+    # (required) ID for google drive shared drive. Found in the URL of the shared drive
+    # https://drive.google.com/drive/u/0/folders/<Drive ID is Here>
+    # format: string
+    # !SENSITIVE
+    team_drive_id: 
+```
+
+### Restic Repo Info
+This info is used to create the restic service files, and defines what directories will be backed up.
+
+All variables listed below are required for this role to run correctly
+
+```yaml
+
+# (required) password to restic repo
+# This is required for any operations done to the restic repo. Keep this password saved somewhere secure that you can access
+# format: string
+# !SENSITIVE
+restic_password:
+
+# (required) name of the restic repo
+# This name can be anything you want, however it must be unique per rclone remote
+# This will also be the name of the folder in google drive
+# format: snake_case
+backup_name:
+
+# (required) unique identifier for the repo. It is used by restic to differentiate each repo
+# format: rclone:<rclone remote name>:{{ backup_name }}
+restic_repo_url:
+
+# (required) path to password file. 
+# format: /path/to/file
+restic_password_file:
+
+# (required) path to rclone.conf file
+# format: /path/to/rclone.conf
+rclone_config_path:
+
+# (required) list of paths to backup
+# recommended paths to backup are listed in this example
+# format: /path/to/dir
+backup_paths:
+  - /home
+  - /etc
+  - /var/log
+
+# (required) number of daily backups to keep
+# recommend value listed
+# format: int
+keep_daily: 7
+
+# (required) number of weekly backups to keep
+# recommended value listed
+# format: int
+keep_weekly: 4
+```
+
+## Execution
+To run this role without running the entire playbook, use the following command:
+```bash
+ansible-playbook site.yaml --tags "backup"
+```

roles/common/README.md

@@ -0,0 +1,39 @@
+# Role: Common
+Installs basic tools and configures base settings for all servers
+This role should always be able to target all hosts.
+
+## Tags
+- common
+
+
+## Required Variables
+Below is an annotated break down of the required variables and their structure for this role
+These variables can be defined either in `host_vars` or `group_vars` as they are generic enough that all hosts can have the same path. However it is recommended to define them per host if possible
+
+> [!WARNING]
+> Any variable marked `# !SENSITIVE` **should not** be stored in plain text under any circumstance
+
+### Podman Variables
+This information is used to setup base podman directories
+
+All variables listed below are required for this role to run correctly
+
+```yaml
+# (required) path to directory where podman volume mounts will be placed
+# format: /path/to/dir
+podman_config_base_dir:
+
+# (required) path to where quadlet files will be saved
+# Recommended value listed below. Without changes, this is the only path the container generator will look for container files on systemd daemon-reload
+# format: /path/to/dir
+podman_quadlet_base_dir: "/home/{{ ansible_user }}/.config/containers/systemd"
+```
+
+## Execution
+> [!NOTE]
+> This role cannot be ran by itself as other required roles are marked with the common tag. This is by design
+
+To run all common roles, use the following command
+```bash
+ansible-playbook site.yaml --tags "common"
+```

roles/dns_server/README.md

@@ -0,0 +1,63 @@
+# Role: DNS Server
+Sets up and deploys DNS server.
+Current setup deploys Adguard Home as the default DNS server, but any can be used
+
+## Tags
+- core
+- dns
+
+## Required Variables
+Below is an annotated breakdown of the required variables and their structure for this role
+
+These blocks should be defined in the `host_vars` file for each host as all variables are unique to the specific host.
+
+> [!WARNING]
+> Any variable marked `# !SENSITIVE` **should not** be stored in plain text under any circumstance
+
+### DNS Info
+Defines settings for dns server quadlet to be deployed
+
+```yaml
+# (required) List of all DNS containers to be deployed
+# in theory you can run multiple containers, however it is highly recommend to only run one
+# at least one service is required
+dns_services:
+
+    # (required) name of the container in podman, and service name in systemd
+    # This is unique to both podman and systemd
+    # format: snake_case
+  - name:
+
+    # (required) URL of container image
+    # can be from any container registry
+    # format: url
+    image:
+
+    # (optional) category of the container
+    # this changes the folder the quadlet is saved to.
+    # default: "services"
+    # format: string
+    category: services
+
+    # (optional) list of volume mounts to be used by the container
+    # it is highly recommended to use volume mounts for DNS containers to persist configs
+    # format example is listed below
+    # default: []
+    # format: /local/path/:/container/path
+    volumes:
+      - /local/path:/container/path
+```
+
+## Templates
+
+### adguard_quadlet.j2
+This template is used to generate .container files for DNS services. Currently it is set up to expect the use of Adguard Home container images.
+
+## Execution
+> [!CAUTION]
+> This role targets and can potentially restart core services. As such it is recommended to only run this role when 100% necessary 
+
+To run this command without running all roles in the playbook, use the following command
+```bash
+ansible-playbook site.yaml --tags "dns"
+```

roles/gitea_server/README.md

@@ -0,0 +1,124 @@
+# Role: Gitea Server
+Sets up and deploys Gitea server and Act Runner. 
+It is recommended that only one server have this role. This prevents issues with multiple sources of truth.
+
+## Tags
+- core
+- gitea
+
+## Required Variables
+Below is an annotated breakdown of the required variables and their structure for this role
+
+These blocks should be defined in the `host_vars` file for the host you wish to be the designated gitea server
+
+> [!WARNING]
+> Any variable marked `# !SENSITIVE` **should not** be stored in plain text under any circumstance
+
+### Gitea Info
+Defines settings for the Gitea container to be deployed
+
+```yaml
+# (required) List of all Gitea containers to be deployed
+# in theory you can run multiple containers, however it is highly recommend to only run one
+# at least one service is required
+gitea_services:
+
+    # (required) name of the container in podman, and service name in systemd
+    # This is unique to both podman and systemd
+    # format: snake_case
+  - name:
+
+    # (required) URL of container image
+    # can be from any container registry
+    # format: url
+    image:
+
+    # (optional) name of container owner
+    # best practice is to use the name of the user running this container
+    # default: "jdelpilar"
+    # format: string
+    container_owner:
+
+    # --- Traefik Labels --- #
+    # (optional) subdomain for the WebUI of the container
+    # This is used to build the FQDN that traefik will use
+    # default: name value defined above
+    # format: snake_case
+    subdomain:
+
+    # (optional) domain used in FQDN
+    # default: "delpilar.net"
+    # format: URL (domain only)
+    domain:
+
+    # (optional) Port of the WebUI as defined by the container
+    # Please check the documentation of the specific container used to find this value
+    # default: 80
+    # format: int
+    port: 3000
+
+    # (optional) list of volume mounts to be used by the container
+    # it is highly recommended to use volume mounts for Gitea containers to persist configs
+    # format example is listed below
+    # default: []
+    # format: /local/path/:/container/path
+    volumes:
+      - /local/path:/container/path
+```
+### Act Runner Info
+Defines settings for the Act Runner container to be deployed
+
+```yaml
+
+# (required) List of all Act Runner containers to be deployed
+# defining multiple runners may result in better concurrency
+# however for most users, one runner will be enough
+# at least one service is required
+runner_services:
+
+    # (required) name of the container in podman, and service name in systemd
+    # This is unique to both podman and systemd
+    # format: snake_case
+  - name:
+
+    # (required) URL of container image
+    # can be from any container registry
+    # format: url
+    image:
+
+
+    # (optional) name of container owner
+    # best practice is to use the name of the user running this container
+    # default: "jdelpilar"
+    # format: string
+    container_owner:
+
+    # (required) URL of the gitea instance
+    # should match the URL generated by the subdomain and domain variables for the gitea service
+    # format: URL
+    gitea_url:
+
+    # (required) Unique token for the runner. Authenticates the runner to gitea
+    # Must be generated via the gitea instance. Any value can be used to allow this role to set up gitea
+    # format: string
+    # !SENSITIVE
+    runner_token:
+```
+
+
+## Templates
+
+### gitea_quadlet.j2
+This template is used to generate .container files for Gitea services. This template includes a section for traefik labels.
+
+### act_runner_quadlet.j2
+This template is used to generate .container files for act_runner services. 
+
+## Execution
+> [!CAUTION]
+> This role targets and can potentially restart core services. As such it is recommended to only run this role when 100% necessary 
+
+To run this command without running all roles in the playbook, use the following command
+```bash
+ansible-playbook site.yaml --tags "gitea"
+```