Hi,
Right now i am Testing DO Kubernetes and am starting to get my head around it. There is only one thing that i am missing. An easy way to add shared volumes between PODS.
I tried GlusterFS since I am Familiar with it and Kubernetes has build in support for it, but so fare i Failed to get it working.
The GlusterFS is fine but I get an Error when I try to mound it.
"All subvolumes are down. Going offline until atleast one of them comes back up. The message “E [MSGID: 101075] [common-utils.c:294:gf_resolve_ip6] 0-resolver: getaddrinfo failed (Name or service not known)”
I have read that Rook.io would be a alternative solution but am still hesitant.
Is there a way to use Gluster FS on DO Kubernetes ore are there any other solutions for my need Kind regards.
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For all those of you wondering. I found the Solution. One caveat, the endpoint has to be in the same namespace as the pod Consuming it.
- Create a Service for Gluster
---
apiVersion: v1
kind: Service
metadata:
name: glusterfs-cluster
namespace: global-storage
spec:
ports:
- port: 1
- Create endpoint for your Service
---
apiVersion: v1
kind: Endpoints
metadata:
name: glusterfs-cluster
namespace: default
subsets:
- addresses:
- ip: 10.135.112.37
ports:
- port: 1
- addresses:
- ip: 10.135.53.65
ports:
- port: 1
- addresses:
- ip: 10.135.26.91
ports:
- port: 1
- Consume Shared Volume
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
namespace: default
labels:
app: nginx
spec:
replicas: 1
selector:
matchLabels:
app: nginx
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx:1.15.4
ports:
- containerPort: 80
volumeMounts:
- mountPath: /usr/share/nginx/html
name: nfs-vol
- mountPath: /data
name: glusterfsvol
volumes:
- name: nfs-vol
nfs:
server: glusterfs.cloud.integral-systems.ch
path: /globalshare
- name: glusterfsvol
glusterfs:
endpoints: glusterfs-cluster
path: globalshare
readOnly: false
Hope this helps :)
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When applying this test configuration:
I get the following error:
It looks like the kubernetes worker nodes don’t have
glusterfs-clientinstalled, henceforth theglusterfsmount type is non-existent.Did anyone solve this yet?
@gradlon , Still its not working for me with the equivalent code (considering different namespace not default namespace) . Did you configure StorageClass or Init-Container in the Deployment level? Pls let me know . Thanks in advance.
GlusterFS Native Storage Service for Kubernetes. gluster-kubernetes is a project to provide Kubernetes administrators a mechanism to easily deploy GlusterFS as a native storage service onto an existing Kubernetes cluster shareit apk.