freeleaps-ops/cluster/bin/README.md

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# Freeleaps Cluster Authenticator
> Helps to `kubectl` authenticated to `Freeleaps Kubernetes Cluster`.
## Prerequisites
- `mathmast.com` Azure Directory account
- `Linux` with `Shell / Bash` support
- `Internet` access
## How to use ?
First, you need grant this script to executable with commands:
```bash
chmod ug+x freeleaps-cluster-authenticator
```
Now, you can get help text with commands:
```bash
freeleaps-cluster-authenticator -h
```
`Freeleaps Cluster Authentication` requires some tools to ensure authentication workflow, please check belows and make sure they are installed on your device:
- `curl`
- `unzip`
- `uname`
- `jq`
Once the required tools are installed, you can using command:
```bash
freeleaps-cluster-authenticator auth
```
to start authentication workflow.
Once authentication workflow started, `Freeleaps Cluster Authenticator` will check the requirements and automatically install `kubectl` and `kubelogin` if not found.
The console output should be like:
```text
[GATHER] Checking OS and architecture...
[INFO] OS: linux
[INFO] Architecture: amd64
[PREREQUISITES] Checking for required tools...
[PREREQUISITES] curl: ✓
[PREREQUISITES] unzip: ✓
[PREREQUISITES] uname: ✓
[PREREQUISITES] kubectl: ✓
[PREREQUISITES] kubelogin: ✓
[PREREQUISITES] jq: ✓
```
And will shows `[SETUP] Setting up kubelogin...` if prerequisites checking passed.
Now you can open `http://127.0.0.1:8000` with your browser, it will redirect to Microsoft login page, you can login `Freeleaps Kubernetes Cluster` with your `mathmast.com` Azure Directory account.
Console will shows `[SETUP] kubelogin setup completed successfully.` when authenticated successfully.
Now the `Freeleaps Cluster Authenticator` will prompt you to input your `mathmast` Azure Directory account name (ends with `@mathmast.com`):
```text
[GATHER] Checking OS and architecture...
[INFO] OS: linux
[INFO] Architecture: amd64
[PREREQUISITES] Checking for required tools...
[PREREQUISITES] curl: ✓
[PREREQUISITES] unzip: ✓
[PREREQUISITES] uname: ✓
[PREREQUISITES] kubectl: ✓
[PREREQUISITES] kubelogin: ✓
[PREREQUISITES] jq: ✓
[SETUP] Setting up kubelogin...
[SETUP] kubelogin setup completed successfully.
[PROMPT] Please enter your Mathmast account name (ending with @mathmast.com, eg. jack@mathmast.com):
```
You can enter your `mathmast.com` Azure Directory account name and press enter to submit.
The `Freeleaps Cluster Authenticator` will automatically finish setting works when you submit your `mathmast.com` Azure Directory account name and the console should be like:
```text
[PROMPT] Username: zhenyus@mathmast.com
[KUBECTL & KUBE_LOGIN] Setting kubectl credentials for zhenyus@mathmast.com...
[KUBECTL & KUBE_LOGIN] Credentials set successfully.
[KUBECTL] Adding cluster (named to: freeleaps-cluster) to kubectl...
[KUBECTL] Cluster added to kubectl successfully.
[KUBECTL] Creating kubectl context...
[KUBECTL] Context created successfully.
[KUBECTL] Using kubectl context...
[KUBECTL] Context set successfully.
[KUBECTL] Checking whoami...
ATTRIBUTE VALUE
Username zhenyus@mathmast.com
Groups [mathmast:admin system:authenticated]
[INFO] Your kubectl has been authenticated with your Mathmast account.
[INFO] Now you can try to using kubectl to interact with the cluster.
```
Now you are already finished authentication for `Freeleaps Kubernetes Cluster`.
You can using `kubectl` to work with `Freeleaps Kubernetes CLuster` right now.
## Commands
`Freeleaps Cluster Authenticator` provides lots of useful command to help you complete authentication flow.
| Command | Alias | Usage |
| ------------ | -------------------- | ------------------------------------------------------------------------------------------------------ |
| `auth` | `-a`,`--auth` | Setup `kubectl` for Freeleaps Kubernetes Cluster with provides `mathmast.com` Azure Directory account |
| `reset-auth` | `-r`,`--reset-auth` | Reset `kubectl` authentication state |
| `clear` | `-c`,`--clear` | Clear authentication |
| `doctor` | `-d`, `--doctor` | Check if all the required tools are installed |
| `dashboard` | `-db`, `--dashboard` | Open dashboard for Freeleaps Kubernetes Cluster and forward the port to localhost and listen on `8443` |
| `get-token` | `-gt`, `--get-token` | Get the token for the current user, usually to using for Kubernetes Dashboard authentication |