mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-26 20:30:10 +01:00
f22b2a0563
Co-authored-by: Hui Wang <haley@victoriametrics.com>
(cherry picked from commit e908effd22)
291 lines
11 KiB
Markdown
291 lines
11 KiB
Markdown
---
|
|
sort: 5
|
|
weight: 5
|
|
title: VMAuth
|
|
menu:
|
|
docs:
|
|
parent: "operator-custom-resources"
|
|
weight: 5
|
|
aliases:
|
|
- /operator/resources/vmauth.html
|
|
---
|
|
|
|
# VMAuth
|
|
|
|
The `VMAuth` CRD provides mechanism for exposing application with authorization to outside world or to other applications inside kubernetes cluster.
|
|
|
|
For first case, user can configure `ingress` setting at `VMAuth` CRD. For second one, operator will create secret with `username` and `password` at `VMUser` CRD name.
|
|
So it will be possible to access these credentials from any application by targeting corresponding kubernetes secret.
|
|
|
|
## Specification
|
|
|
|
You can see the full actual specification of the `VMAuth` resource in
|
|
the **[API docs -> VMAuth](../api.md#vmauth)**.
|
|
|
|
If you can't find necessary field in the specification of the custom resource,
|
|
see [Extra arguments section](./README.md#extra-arguments).
|
|
|
|
Also, you can check out the [examples](#examples) section.
|
|
|
|
## Users
|
|
|
|
The CRD specifies which `VMUser`s should be covered by the deployed `VMAuth` instances based on label selection.
|
|
The Operator then generates a configuration based on the included `VMUser`s and updates the `Configmaps` containing
|
|
the configuration. It continuously does so for all changes that are made to `VMUser`s or to the `VMAuth` resource itself.
|
|
|
|
[VMUser](./vmuser.md) objects generate part of `VMAuth` configuration.
|
|
|
|
For filtering users `VMAuth` uses selectors `userNamespaceSelector` and `userSelector`.
|
|
It allows configuring rules access control across namespaces and different environments.
|
|
Specification of selectors you can see in [this doc](https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.27/#labelselector-v1-meta).
|
|
|
|
In addition to the above selectors, the filtering of objects in a cluster is affected by the field `selectAllByDefault` of `VMAuth` spec and environment variable `WATCH_NAMESPACE` for operator.
|
|
|
|
Following rules are applied:
|
|
|
|
- If `userNamespaceSelector` and `userSelector` both undefined, then by default select nothing. With option set - `spec.selectAllByDefault: true`, select all vmusers.
|
|
- If `userNamespaceSelector` defined, `userSelector` undefined, then all vmusers are matching at namespaces for given `userNamespaceSelector`.
|
|
- If `userNamespaceSelector` undefined, `userSelector` defined, then all vmusers at `VMAgent`'s namespaces are matching for given `userSelector`.
|
|
- If `userNamespaceSelector` and `userSelector` both defined, then only vmusers at namespaces matched `userNamespaceSelector` for given `userSelector` are matching.
|
|
|
|
Here's a more visual and more detailed view:
|
|
|
|
| `userNamespaceSelector` | `userSelector` | `selectAllByDefault` | `WATCH_NAMESPACE` | Selected rules |
|
|
|-------------------------|----------------|----------------------|-------------------|------------------------------------------------------------------------------------------------------|
|
|
| undefined | undefined | false | undefined | nothing |
|
|
| undefined | undefined | **true** | undefined | all vmusers in the cluster |
|
|
| **defined** | undefined | *any* | undefined | all vmusers are matching at namespaces for given `userNamespaceSelector` |
|
|
| undefined | **defined** | *any* | undefined | all vmusers only at `VMAuth`'s namespace are matching for given `userSelector` |
|
|
| **defined** | **defined** | *any* | undefined | all vmusers only at namespaces matched `userNamespaceSelector` for given `userSelector` are matching |
|
|
| *any* | undefined | *any* | **defined** | all vmusers only at `VMAuth`'s namespace |
|
|
| *any* | **defined** | *any* | **defined** | all vmusers only at `VMAuth`'s namespace for given `userSelector` are matching |
|
|
|
|
More details about `WATCH_NAMESPACE` variable you can read in [this doc](../configuration.md#namespaced-mode).
|
|
|
|
Here are some examples of `VMAuth` configuration with selectors:
|
|
|
|
```yaml
|
|
# select all user objects in the cluster
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: vmauth-select-all
|
|
spec:
|
|
# ...
|
|
selectAllByDefault: true
|
|
|
|
---
|
|
|
|
# select all user objects in specific namespace (my-namespace)
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: vmauth-select-ns
|
|
spec:
|
|
# ...
|
|
userNamespaceSelector:
|
|
matchLabels:
|
|
kubernetes.io/metadata.name: my-namespace
|
|
```
|
|
|
|
## Unauthorized access
|
|
|
|
You can configure `VMAuth` to allow unauthorized access for specified routes with `unauthorizedAccessConfig` field.
|
|
|
|
For instance:
|
|
|
|
```yaml
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: vmauth-unauthorized-example
|
|
spec:
|
|
unauthorizedAccessConfig:
|
|
- src_paths: ["/metrics"]
|
|
url_prefix:
|
|
- http://vmsingle-example.default.svc:8428
|
|
```
|
|
|
|
In this example every user can access `/metrics` route and get vmsingle metrics without authorization.
|
|
|
|
In addition, `unauthorizedAccessConfig` in [Enterprise version](#enterprise-features) supports [IP Filters](#ip-filters)
|
|
with `ip_filters` field.
|
|
|
|
## High availability
|
|
|
|
The `VMAuth` resource is stateless, so it can be scaled horizontally by increasing the number of replicas:
|
|
|
|
```yaml
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: vmauth-example
|
|
spec:
|
|
replicas: 3
|
|
# ...
|
|
```
|
|
|
|
## Version management
|
|
|
|
To set `VMAuth` version add `spec.image.tag` name from [releases](https://github.com/VictoriaMetrics/VictoriaMetrics/releases)
|
|
|
|
```yaml
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: example-vmauth
|
|
spec:
|
|
image:
|
|
repository: victoriametrics/vmauth
|
|
tag: v1.93.4
|
|
pullPolicy: Always
|
|
# ...
|
|
```
|
|
|
|
Also, you can specify `imagePullSecrets` if you are pulling images from private repo:
|
|
|
|
```yaml
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: example-vmauth
|
|
spec:
|
|
image:
|
|
repository: victoriametrics/vmauth
|
|
tag: v1.93.4
|
|
pullPolicy: Always
|
|
imagePullSecrets:
|
|
- name: my-repo-secret
|
|
# ...
|
|
```
|
|
|
|
## Resource management
|
|
|
|
You can specify resources for each `VMAuth` resource in the `spec` section of the `VMAuth` CRD.
|
|
|
|
```yaml
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: vmauth-resources-example
|
|
spec:
|
|
# ...
|
|
resources:
|
|
requests:
|
|
memory: "64Mi"
|
|
cpu: "250m"
|
|
limits:
|
|
memory: "128Mi"
|
|
cpu: "500m"
|
|
# ...
|
|
```
|
|
|
|
If these parameters are not specified, then,
|
|
by default all `VMAuth` pods have resource requests and limits from the default values of the following [operator parameters](../configuration.md):
|
|
|
|
- `VM_VMAUTHDEFAULT_RESOURCE_LIMIT_MEM` - default memory limit for `VMAuth` pods,
|
|
- `VM_VMAUTHDEFAULT_RESOURCE_LIMIT_CPU` - default memory limit for `VMAuth` pods,
|
|
- `VM_VMAUTHDEFAULT_RESOURCE_REQUEST_MEM` - default memory limit for `VMAuth` pods,
|
|
- `VM_VMAUTHDEFAULT_RESOURCE_REQUEST_CPU` - default memory limit for `VMAuth` pods.
|
|
|
|
These default parameters will be used if:
|
|
|
|
- `VM_VMAUTHDEFAULT_USEDEFAULTRESOURCES` is set to `true` (default value),
|
|
- `VMAuth` CR doesn't have `resources` field in `spec` section.
|
|
|
|
Field `resources` in `VMAuth` spec have higher priority than operator parameters.
|
|
|
|
If you set `VM_VMAUTHDEFAULT_USEDEFAULTRESOURCES` to `false` and don't specify `resources` in `VMAuth` CRD,
|
|
then `VMAuth` pods will be created without resource requests and limits.
|
|
|
|
Also, you can specify requests without limits - in this case default values for limits will not be used.
|
|
|
|
## Enterprise features
|
|
|
|
Custom resource `VMAuth` supports feature [IP filters](https://docs.victoriametrics.com/vmauth.html#ip-filters)
|
|
from [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/enterprise.html#victoriametrics-enterprise).
|
|
|
|
For using Enterprise version of [vmauth](https://docs.victoriametrics.com/vmauth.html)
|
|
you need to change version of `vmauth` to version with `-enterprise` suffix using [Version management](#version-management).
|
|
|
|
All the enterprise apps require `-eula` command-line flag to be passed to them.
|
|
This flag acknowledges that your usage fits one of the cases listed on [this page](https://docs.victoriametrics.com/enterprise.html#victoriametrics-enterprise).
|
|
So you can use [extraArgs](./README.md#extra-arguments) for passing this flag to `VMAuth`:
|
|
|
|
### IP Filters
|
|
|
|
After that you can use [IP filters for `VMUser`](./vmuser.md#enterprise-features)
|
|
and field `ip_filters` for `VMAuth`.
|
|
|
|
Here are complete example with described above:
|
|
|
|
```yaml
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: vmauth-ent-example
|
|
spec:
|
|
# enabling enterprise features
|
|
image:
|
|
# enterprise version of vmauth
|
|
tag: v1.93.5-enterprise
|
|
extraArgs:
|
|
# should be true and means that you have the legal right to run a vmauth enterprise
|
|
# that can either be a signed contract or an email with confirmation to run the service in a trial period
|
|
# https://victoriametrics.com/legal/esa/
|
|
eula: true
|
|
|
|
# using enterprise features: ip filters for vmauth
|
|
# more details about ip filters you can read in https://docs.victoriametrics.com/vmauth.html#ip-filters
|
|
ip_filters:
|
|
allow_list:
|
|
- 10.0.0.0/24
|
|
- 1.2.3.4
|
|
deny_list:
|
|
- 5.6.7.8
|
|
# allow read vmsingle metrics without authorization for users from internal network
|
|
unauthorizedAccessConfig:
|
|
- src_paths: ["/metrics"]
|
|
url_prefix: ["http://vmsingle-example.default.svc:8428"]
|
|
ip_filters:
|
|
allow_list:
|
|
- 192.168.0.0/16
|
|
- 10.0.0.0/8
|
|
|
|
# ...other fields...
|
|
|
|
---
|
|
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMUser
|
|
metadata:
|
|
name: vmuser-ent-example
|
|
spec:
|
|
username: simple-user
|
|
password: simple-password
|
|
|
|
# using enterprise features: ip filters for vmuser
|
|
# more details about ip filters you can read in https://docs.victoriametrics.com/vmuser.html#enterprise-features
|
|
ip_filters:
|
|
allow_list:
|
|
- 10.0.0.0/24
|
|
- 1.2.3.4
|
|
deny_list:
|
|
- 5.6.7.8
|
|
```
|
|
|
|
## Examples
|
|
|
|
```yaml
|
|
apiVersion: operator.victoriametrics.com/v1beta1
|
|
kind: VMAuth
|
|
metadata:
|
|
name: example
|
|
namespace: default
|
|
spec:
|
|
selectAllByDefault: true
|
|
ingress:
|
|
class_name: nginx # <-- change this to your ingress-controller
|
|
host: vm-demo.k8s.orb.local # <-- change this to your domain
|
|
```
|