mirror of
https://github.com/itzg/mc-router.git
synced 2024-06-24 10:14:42 +02:00
docs: document auto service discovery example
This commit is contained in:
Geoff Bourne
parent
c49099f1cf
commit
50ff433fd0
|
|
@ -44,4 +44,5 @@ dockers:
|
|||
changelog:
|
||||
filters:
|
||||
exclude:
|
||||
- '^ci:'
|
||||
- '^ci:'
|
||||
- '^docs:'
|
||||
18
README.md
18
README.md
|
|
@ -31,22 +31,20 @@ Flags:
|
|||
|
||||
## Example kubernetes deployment
|
||||
|
||||
[These deployments](docs/k8s-example.yaml) declare an `mc-router` that exposes a node port service
|
||||
on the standard Minecraft server port 25565. Two "backend" Minecraft servers are declared as example
|
||||
where users can choose stable/vanilla or snapshot simply based on the hostname they used.
|
||||
[This example deployment](docs/k8s-example-auto.yaml)
|
||||
* Declares an `mc-router` service that exposes a node port 25565
|
||||
* Declares a service account with access to watch and list services
|
||||
* Declares `--in-kube-cluster` in the `mc-router` container arguments
|
||||
* Two "backend" Minecraft servers are declared each with an
|
||||
`"mc-router.itzg.me/externalServerName"` annotation that declares their external server name
|
||||
|
||||
```bash
|
||||
kubectl apply -f https://raw.githubusercontent.com/itzg/mc-router/master/docs/k8s-example.yaml
|
||||
kubectl apply -f https://raw.githubusercontent.com/itzg/mc-router/master/docs/k8s-example-auto.yaml
|
||||
```
|
||||
|
||||
|
||||
|
||||
|
||||
#### Notes
|
||||
* This deployment assumes two persistent volume claims: `mc-stable` and `mc-snapshot`
|
||||
* I extended the allowed node port range by adding `--service-node-port-range=25000-32767`
|
||||
to `/etc/kubernetes/manifests/kube-apiserver.yaml`
|
||||
|
||||
## Coming Soon
|
||||
|
||||
* Make `mc-router` kubernetes service aware. It would watch for backend instances with well known annotations
|
||||
and dynamically create/remove routes accordingly
|
||||
BIN
docs/example-deployment-auto.drawio.png
Normal file
BIN
docs/example-deployment-auto.drawio.png
Normal file
Binary file not shown.
|
After Width: | Height: | Size: 61 KiB |
167
docs/k8s-example-auto.yaml
Normal file
167
docs/k8s-example-auto.yaml
Normal file
|
|
@ -0,0 +1,167 @@
|
|||
---
|
||||
apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
metadata:
|
||||
name: mc-router
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRole
|
||||
metadata:
|
||||
name: services-watcher
|
||||
rules:
|
||||
- apiGroups: [""]
|
||||
resources: ["services"]
|
||||
verbs: ["watch","list"]
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRoleBinding
|
||||
metadata:
|
||||
name: mc-router-services-watcher
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: mc-router
|
||||
namespace: default
|
||||
roleRef:
|
||||
kind: ClusterRole
|
||||
name: services-watcher
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: mc-router
|
||||
spec:
|
||||
type: NodePort
|
||||
ports:
|
||||
- targetPort: web
|
||||
name: web
|
||||
port: 8080
|
||||
nodePort: 25580
|
||||
- targetPort: proxy
|
||||
name: proxy
|
||||
port: 25565
|
||||
nodePort: 25565
|
||||
selector:
|
||||
run: mc-router
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
labels:
|
||||
run: mc-router
|
||||
name: mc-router
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
run: mc-router
|
||||
strategy:
|
||||
type: Recreate
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
run: mc-router
|
||||
spec:
|
||||
serviceAccountName: mc-router
|
||||
containers:
|
||||
- image: itzg/mc-router:1.1.1
|
||||
name: mc-router
|
||||
args: ["--api-binding", ":8080", "--in-kube-cluster"]
|
||||
ports:
|
||||
- name: proxy
|
||||
containerPort: 25565
|
||||
- name: web
|
||||
containerPort: 8080
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: mc-stable
|
||||
annotations:
|
||||
"mc-router.itzg.me/externalServerName": "mc.your.domain"
|
||||
spec:
|
||||
ports:
|
||||
- port: 25565
|
||||
selector:
|
||||
run: mc-stable
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
labels:
|
||||
run: mc-stable
|
||||
name: mc-stable
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
run: mc-stable
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
run: mc-stable
|
||||
spec:
|
||||
securityContext:
|
||||
runAsUser: 1000
|
||||
fsGroup: 1000
|
||||
containers:
|
||||
- image: itzg/minecraft-server
|
||||
name: mc-stable
|
||||
env:
|
||||
- name: EULA
|
||||
value: "TRUE"
|
||||
ports:
|
||||
- containerPort: 25565
|
||||
volumeMounts:
|
||||
- name: data
|
||||
mountPath: /data
|
||||
volumes:
|
||||
- name: data
|
||||
persistentVolumeClaim:
|
||||
claimName: mc-stable
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: mc-snapshot
|
||||
annotations:
|
||||
"mc-router.itzg.me/externalServerName": "snapshot.your.domain"
|
||||
spec:
|
||||
ports:
|
||||
- port: 25565
|
||||
selector:
|
||||
run: mc-snapshot
|
||||
---
|
||||
apiVersion: apps/v1
|
||||
kind: Deployment
|
||||
metadata:
|
||||
labels:
|
||||
run: mc-snapshot
|
||||
name: mc-snapshot
|
||||
spec:
|
||||
selector:
|
||||
matchLabels:
|
||||
run: mc-snapshot
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
run: mc-snapshot
|
||||
spec:
|
||||
securityContext:
|
||||
runAsUser: 1000
|
||||
fsGroup: 1000
|
||||
containers:
|
||||
- image: itzg/minecraft-server
|
||||
name: mc-snapshot
|
||||
env:
|
||||
- name: EULA
|
||||
value: "TRUE"
|
||||
- name: VERSION
|
||||
value: "SNAPSHOT"
|
||||
ports:
|
||||
- containerPort: 25565
|
||||
volumeMounts:
|
||||
- name: data
|
||||
mountPath: /data
|
||||
volumes:
|
||||
- name: data
|
||||
persistentVolumeClaim:
|
||||
claimName: mc-snapshot
|
||||
|
|
@ -1,5 +1,32 @@
|
|||
---
|
||||
apiVersion: v1
|
||||
kind: ServiceAccount
|
||||
metadata:
|
||||
name: mc-router
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRole
|
||||
metadata:
|
||||
name: services-watcher
|
||||
rules:
|
||||
- apiGroups: [""]
|
||||
resources: ["services"]
|
||||
verbs: ["watch","list"]
|
||||
---
|
||||
apiVersion: rbac.authorization.k8s.io/v1
|
||||
kind: ClusterRoleBinding
|
||||
metadata:
|
||||
name: mc-router-services-watcher
|
||||
subjects:
|
||||
- kind: ServiceAccount
|
||||
name: mc-router
|
||||
namespace: default
|
||||
roleRef:
|
||||
kind: ClusterRole
|
||||
name: services-watcher
|
||||
apiGroup: rbac.authorization.k8s.io
|
||||
---
|
||||
apiVersion: v1
|
||||
kind: Service
|
||||
metadata:
|
||||
name: mc-router
|
||||
|
|
@ -27,15 +54,18 @@ spec:
|
|||
selector:
|
||||
matchLabels:
|
||||
run: mc-router
|
||||
strategy:
|
||||
type: Recreate
|
||||
template:
|
||||
metadata:
|
||||
labels:
|
||||
run: mc-router
|
||||
spec:
|
||||
serviceAccountName: mc-router
|
||||
containers:
|
||||
- image: itzg/mc-router:1.0.1
|
||||
- image: itzg/mc-router:1.1.1
|
||||
name: mc-router
|
||||
args: ["--api-binding", ":8080"]
|
||||
args: ["--api-binding", ":8080", "--in-kube-cluster"]
|
||||
ports:
|
||||
- name: proxy
|
||||
containerPort: 25565
|
||||
|
|
@ -46,6 +76,8 @@ apiVersion: v1
|
|||
kind: Service
|
||||
metadata:
|
||||
name: mc-stable
|
||||
annotations:
|
||||
"mc-router.itzg.me/externalServerName": "mc.your.domain"
|
||||
spec:
|
||||
ports:
|
||||
- port: 25565
|
||||
|
|
@ -90,6 +122,8 @@ apiVersion: v1
|
|||
kind: Service
|
||||
metadata:
|
||||
name: mc-snapshot
|
||||
annotations:
|
||||
"mc-router.itzg.me/externalServerName": "mc-snapshot.your.domain"
|
||||
spec:
|
||||
ports:
|
||||
- port: 25565
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user