Make an actual readme

README.md

@@ -1,3 +1,211 @@
 # [restic-scheduler](/iamthefij/restic-scheduler)
 
-Job scheduler for Restic backups
+## About
+
+`restic-scheduler` is a tool designed to allow declarative scheduling of restic backups using HCL (HashiCorp Configuration Language). This tool simplifies the process of managing and automating backups by defining jobs in a configuration file.
+
+## Getting Started
+
+### Installation
+
+You can install `restic-scheduler` using the following command:
+
+```sh
+go install git.iamthefij.com/iamthefij/restic-scheduler@latest
+```
+
+You can also download the latest release from the [releases page](https://git.iamthefij.com/iamthefij/restic-scheduler/releases).
+
+Finally, if you prefer to use Docker, you can run something like the following command:
+
+```sh
+docker run -v /path/to/config:/config -v /path/to/data:/data iamthefij/restic-scheduler -config /config/jobs.hcl
+```
+
+### Prerequisites
+
+If you're not using Docker, you'll need to ensure that `restic` is installed and available in your system's PATH. You can download and install restic from [here](https://restic.net/).
+
+## Usage
+
+### Command Line Interface
+
+The `restic-scheduler` command line interface provides several options for managing backup, restore, and unlock jobs. Below are some examples of how to use this tool.
+
+#### Display Version
+
+To display the version of `restic-scheduler`, use the `-version` flag:
+
+```sh
+restic-scheduler -version
+```
+
+#### Run Backup Jobs
+
+To run backup jobs, use the `-backup` flag followed by a comma-separated list of job names. Use `all` to run all backup jobs:
+
+```sh
+restic-scheduler -backup job1,job2
+```
+
+#### Run Restore Jobs
+
+To run restore jobs, use the `-restore` flag followed by a comma-separated list of job names. Use `all` to run all restore jobs:
+
+```sh
+restic-scheduler -restore job1,job2
+```
+
+#### Unlock Job Repositories
+
+To unlock job repositories, use the `-unlock` flag followed by a comma-separated list of job names. Use `all` to unlock all job repositories:
+
+```sh
+restic-scheduler -unlock job1,job2
+```
+
+#### Run Jobs Once and Exit
+
+To run specified backup and restore jobs once and exit, use the `-once` flag:
+
+```sh
+restic-scheduler -backup job1 -restore job2 -once
+```
+
+#### Health Check and metrics API
+
+To bind the health check and Prometheus metrics API to a specific address, use the `-addr` flag:
+
+```sh
+restic-scheduler -addr 0.0.0.0:8080
+```
+
+#### Metrics Push Gateway
+
+To specify the URL of a Prometheus push gateway service for batch runs, use the `-push-gateway` flag:
+
+```sh
+restic-scheduler -push-gateway http://example.com
+```
+
+## HCL Configuration
+
+The configuration for `restic-scheduler` is defined using HCL. Below is a description and example of how to define a backup job in the configuration file.
+
+### Job Configuration
+
+A job in the configuration file is defined using the `job` block. Each job must have a unique name, a schedule, and a configuration for restic. Additionally, tasks can be defined to perform specific actions before and after the backup.
+
+#### Fields
+
+- `name`: The name of the job.
+- `schedule`: The cron schedule for the job.
+- `config`: The restic configuration block.
+  - `repo`: The restic repository.
+  - `passphrase`: (Optional) The passphrase for the repository.
+  - `env`: (Optional) Environment variables for restic.
+  - `options`: (Optional) Global options for restic. See the `restic` command for details.
+- `task`: (Optional) A list of tasks to run before and after the backup.
+- `mysql`, `postgres`, `sqlite`: (Optional) Database-specific tasks.
+- `backup`: The backup configuration block.
+- `forget`: (Optional) Options for forgetting old snapshots.
+
+### Example
+
+Below is an example of a job configuration in HCL:
+
+```hcl
+// Example job file
+job "MyApp" {
+  schedule = "* * * * *"
+
+  config {
+    repo = "s3://..."
+    passphrase = "foo"
+    # Some alternate ways to pass the passphrase to restic
+    # passphrase = env("RESTIC_PASSWORD")
+    # passphrase = readfile("/path/to/passphrase")
+    env = {
+      "foo" = "bar",
+    }
+    options {
+      VerboseLevel = 3
+      # Another alternate way to pass the passphrase to restic
+      # PasswordFile = "/path/to/passphrase"
+    }
+  }
+
+  mysql "DumpMainDB" {
+    hostname = "foo"
+    username = "bar"
+    dump_to = "/data/main.sql"
+  }
+
+  sqlite "DumpSqlite" {
+    path = "/db/sqlite.db"
+    dump_to = "/data/sqlite.db.bak"
+  }
+
+  task "Create biz file" {
+
+    pre_script {
+      on_backup = <<EOF
+      echo bar >> /biz.txt
+      EOF
+    }
+
+    post_script {
+      on_backup = <<EOF
+      rm /biz.txt
+      EOF
+    }
+  }
+
+  task "Run restore shell script" {
+    pre_script {
+      on_restore = "/foo/bar.sh"
+    }
+  }
+
+  backup {
+    files =[
+      "/data",
+      "/biz.txt",
+    ]
+
+    backup_opts {
+      Tags = ["service"]
+    }
+
+    restore_opts {
+      Verify = true
+      # Since paths are absolute, restore to root
+      Target = "/"
+    }
+  }
+
+  forget {
+    KeepLast = 3
+    KeepWeekly = 2
+    KeepMonthly = 2
+    KeepYearly = 2
+    Prune = true
+  }
+}
+```
+
+```sh
+restic-scheduler jobs.hcl
+```
+
+This will read the job definitions from `jobs.hcl` and execute the specified jobs.
+
+For more examples, check out `./config.hcl` or some of the example integration test configs in `./test/`.
+
+## Contributing
+
+Contributions are welcome! Please open an issue or submit a pull request on the [GitHub repository](https://git.iamthefij.com/iamthefij/restic-scheduler).
+
+## License
+
+This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.